./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.7.3/main17_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.7.3/main17_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 600276f17a788d89542ab4bc1cb35a7ee9259aa7d76b73bd966dc12f7082896c --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 02:08:25,348 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 02:08:25,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 02:08:25,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 02:08:25,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 02:08:25,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 02:08:25,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 02:08:25,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 02:08:25,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 02:08:25,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 02:08:25,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 02:08:25,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 02:08:25,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 02:08:25,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 02:08:25,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 02:08:25,404 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 02:08:25,405 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 02:08:25,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 02:08:25,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 02:08:25,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 02:08:25,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 02:08:25,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 02:08:25,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 02:08:25,418 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 02:08:25,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 02:08:25,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 02:08:25,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 02:08:25,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 02:08:25,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 02:08:25,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 02:08:25,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 02:08:25,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 02:08:25,427 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 02:08:25,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 02:08:25,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 02:08:25,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 02:08:25,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 02:08:25,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 02:08:25,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 02:08:25,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 02:08:25,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 02:08:25,432 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 02:08:25,469 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 02:08:25,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 02:08:25,469 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 02:08:25,470 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 02:08:25,470 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 02:08:25,471 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 02:08:25,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 02:08:25,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 02:08:25,472 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 02:08:25,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 02:08:25,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 02:08:25,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 02:08:25,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 02:08:25,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 02:08:25,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 02:08:25,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 02:08:25,473 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 02:08:25,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 02:08:25,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 02:08:25,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 02:08:25,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 02:08:25,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 02:08:25,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 02:08:25,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 02:08:25,475 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 02:08:25,475 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 02:08:25,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 02:08:25,476 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 02:08:25,476 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 02:08:25,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 02:08:25,476 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 02:08:25,476 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 600276f17a788d89542ab4bc1cb35a7ee9259aa7d76b73bd966dc12f7082896c [2021-12-18 02:08:25,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 02:08:25,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 02:08:25,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 02:08:25,698 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 02:08:25,698 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 02:08:25,699 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.7.3/main17_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i [2021-12-18 02:08:25,758 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/149f36cd2/1f664ffc531f4c88b8ddb88890ecfbfb/FLAG6c2134363 [2021-12-18 02:08:26,648 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 02:08:26,649 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main17_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i [2021-12-18 02:08:26,713 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/149f36cd2/1f664ffc531f4c88b8ddb88890ecfbfb/FLAG6c2134363 [2021-12-18 02:08:27,030 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/149f36cd2/1f664ffc531f4c88b8ddb88890ecfbfb [2021-12-18 02:08:27,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 02:08:27,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 02:08:27,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 02:08:27,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 02:08:27,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 02:08:27,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:08:27" (1/1) ... [2021-12-18 02:08:27,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@de02709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:27, skipping insertion in model container [2021-12-18 02:08:27,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:08:27" (1/1) ... [2021-12-18 02:08:27,045 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 02:08:27,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 02:08:34,848 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main17_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i[722028,722041] [2021-12-18 02:08:35,215 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 02:08:35,286 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 02:08:36,170 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main17_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i[722028,722041] [2021-12-18 02:08:36,215 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 02:08:36,835 INFO L208 MainTranslator]: Completed translation [2021-12-18 02:08:36,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:36 WrapperNode [2021-12-18 02:08:36,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 02:08:36,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 02:08:36,854 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 02:08:36,854 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 02:08:36,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:36" (1/1) ... [2021-12-18 02:08:37,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:36" (1/1) ... [2021-12-18 02:08:37,319 INFO L137 Inliner]: procedures = 1046, calls = 9656, calls flagged for inlining = 360, calls inlined = 140, statements flattened = 6940 [2021-12-18 02:08:37,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 02:08:37,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 02:08:37,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 02:08:37,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 02:08:37,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:36" (1/1) ... [2021-12-18 02:08:37,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:36" (1/1) ... [2021-12-18 02:08:37,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:36" (1/1) ... [2021-12-18 02:08:37,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:36" (1/1) ... [2021-12-18 02:08:37,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:36" (1/1) ... [2021-12-18 02:08:37,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:36" (1/1) ... [2021-12-18 02:08:37,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:36" (1/1) ... [2021-12-18 02:08:37,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 02:08:37,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 02:08:37,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 02:08:37,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 02:08:37,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:36" (1/1) ... [2021-12-18 02:08:37,741 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 02:08:37,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 02:08:37,767 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 02:08:37,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 02:08:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dummy_query_bo_prepare [2021-12-18 02:08:37,799 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dummy_query_bo_prepare [2021-12-18 02:08:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_framebuffer_dmabuf_destroy [2021-12-18 02:08:37,799 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_framebuffer_dmabuf_destroy [2021-12-18 02:08:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure idr_destroy [2021-12-18 02:08:37,799 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_destroy [2021-12-18 02:08:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_obj_init [2021-12-18 02:08:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_obj_init [2021-12-18 02:08:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2021-12-18 02:08:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2021-12-18 02:08:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-18 02:08:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-18 02:08:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_crtc_set_config [2021-12-18 02:08:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_crtc_set_config [2021-12-18 02:08:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_eu_backoff_reservation [2021-12-18 02:08:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_eu_backoff_reservation [2021-12-18 02:08:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure drm_mtrr_del [2021-12-18 02:08:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_mtrr_del [2021-12-18 02:08:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_move_buffer [2021-12-18 02:08:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_move_buffer [2021-12-18 02:08:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_firstopen [2021-12-18 02:08:37,802 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_firstopen [2021-12-18 02:08:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_lastclose [2021-12-18 02:08:37,802 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_lastclose [2021-12-18 02:08:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_pause_all [2021-12-18 02:08:37,802 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_pause_all [2021-12-18 02:08:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_framebuffer_surface_destroy [2021-12-18 02:08:37,803 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_framebuffer_surface_destroy [2021-12-18 02:08:37,803 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_destroy [2021-12-18 02:08:37,803 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_destroy [2021-12-18 02:08:37,803 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-18 02:08:37,803 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-18 02:08:37,803 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-18 02:08:37,803 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 02:08:37,804 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 02:08:37,804 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-18 02:08:37,804 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-18 02:08:37,804 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_unreserve [2021-12-18 02:08:37,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_unreserve [2021-12-18 02:08:37,804 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 02:08:37,804 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 02:08:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kmap [2021-12-18 02:08:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kmap [2021-12-18 02:08:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 02:08:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 02:08:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_backing_free [2021-12-18 02:08:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_backing_free [2021-12-18 02:08:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_to_vram_or_gmr [2021-12-18 02:08:37,806 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_to_vram_or_gmr [2021-12-18 02:08:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kunmap [2021-12-18 02:08:37,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kunmap [2021-12-18 02:08:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2021-12-18 02:08:37,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2021-12-18 02:08:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 02:08:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_commit_list [2021-12-18 02:08:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_commit_list [2021-12-18 02:08:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_hw_mutex [2021-12-18 02:08:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_hw_mutex [2021-12-18 02:08:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_emit_dummy_query [2021-12-18 02:08:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_emit_dummy_query [2021-12-18 02:08:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_hw_context_destroy [2021-12-18 02:08:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_hw_context_destroy [2021-12-18 02:08:37,808 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_del_active [2021-12-18 02:08:37,808 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_del_active [2021-12-18 02:08:37,808 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_mem_global_alloc [2021-12-18 02:08:37,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_mem_global_alloc [2021-12-18 02:08:37,808 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ttm_destroy [2021-12-18 02:08:37,808 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ttm_destroy [2021-12-18 02:08:37,808 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-18 02:08:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-18 02:08:37,809 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_resource_release [2021-12-18 02:08:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_resource_release [2021-12-18 02:08:37,809 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_base_object_init [2021-12-18 02:08:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_base_object_init [2021-12-18 02:08:37,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 02:08:37,809 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_seqno_waiter_add [2021-12-18 02:08:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_seqno_waiter_add [2021-12-18 02:08:37,810 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_pm_complete [2021-12-18 02:08:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_pm_complete [2021-12-18 02:08:37,810 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_crtc_destroy [2021-12-18 02:08:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_crtc_destroy [2021-12-18 02:08:37,810 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-18 02:08:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-18 02:08:37,810 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dma_buffer [2021-12-18 02:08:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dma_buffer [2021-12-18 02:08:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 02:08:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_cursor_update_image [2021-12-18 02:08:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_cursor_update_image [2021-12-18 02:08:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_display_unit_cleanup [2021-12-18 02:08:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_display_unit_cleanup [2021-12-18 02:08:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 02:08:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 02:08:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_destroy [2021-12-18 02:08:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_destroy [2021-12-18 02:08:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_user_context_base_release [2021-12-18 02:08:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_user_context_base_release [2021-12-18 02:08:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_seqno_passed [2021-12-18 02:08:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_seqno_passed [2021-12-18 02:08:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-18 02:08:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-18 02:08:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_have_pitchlock [2021-12-18 02:08:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_have_pitchlock [2021-12-18 02:08:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-18 02:08:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-18 02:08:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_stream_destroy [2021-12-18 02:08:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_stream_destroy [2021-12-18 02:08:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 02:08:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 02:08:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_write [2021-12-18 02:08:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_write [2021-12-18 02:08:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex [2021-12-18 02:08:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex [2021-12-18 02:08:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_wait [2021-12-18 02:08:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_wait [2021-12-18 02:08:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_kms_close [2021-12-18 02:08:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_kms_close [2021-12-18 02:08:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-18 02:08:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-18 02:08:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 02:08:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 02:08:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_kms_write_svga [2021-12-18 02:08:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_kms_write_svga [2021-12-18 02:08:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_release_mutex [2021-12-18 02:08:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_release_mutex [2021-12-18 02:08:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_init [2021-12-18 02:08:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_init [2021-12-18 02:08:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fallback_wait [2021-12-18 02:08:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fallback_wait [2021-12-18 02:08:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 02:08:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_obj_reference [2021-12-18 02:08:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_obj_reference [2021-12-18 02:08:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_release [2021-12-18 02:08:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_release [2021-12-18 02:08:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_hw_surface_destroy [2021-12-18 02:08:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_hw_surface_destroy [2021-12-18 02:08:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-18 02:08:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-18 02:08:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-12-18 02:08:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-12-18 02:08:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_reserve [2021-12-18 02:08:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_reserve [2021-12-18 02:08:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-18 02:08:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-18 02:08:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fb_off [2021-12-18 02:08:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fb_off [2021-12-18 02:08:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 02:08:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 02:08:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 02:08:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 02:08:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_write_lock [2021-12-18 02:08:37,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_write_lock [2021-12-18 02:08:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_3d_resource_dec [2021-12-18 02:08:37,820 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_3d_resource_dec [2021-12-18 02:08:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-18 02:08:37,820 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-18 02:08:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_device_release [2021-12-18 02:08:37,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_device_release [2021-12-18 02:08:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 02:08:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-18 02:08:37,821 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-18 02:08:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_release [2021-12-18 02:08:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 02:08:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2021-12-18 02:08:37,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2021-12-18 02:08:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-12-18 02:08:37,822 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-12-18 02:08:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ttm_global_release [2021-12-18 02:08:37,822 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ttm_global_release [2021-12-18 02:08:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-18 02:08:37,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-18 02:08:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-18 02:08:37,822 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-18 02:08:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-18 02:08:37,823 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-18 02:08:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_add_active [2021-12-18 02:08:37,823 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_add_active [2021-12-18 02:08:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fpriv [2021-12-18 02:08:37,823 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fpriv [2021-12-18 02:08:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-12-18 02:08:37,823 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-12-18 02:08:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_eu_reserve_buffers [2021-12-18 02:08:37,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_eu_reserve_buffers [2021-12-18 02:08:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_kmap_obj_virtual [2021-12-18 02:08:37,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_kmap_obj_virtual [2021-12-18 02:08:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_to_start_of_vram [2021-12-18 02:08:37,824 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_to_start_of_vram [2021-12-18 02:08:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-18 02:08:37,824 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-18 02:08:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fb_set_par [2021-12-18 02:08:37,825 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fb_set_par [2021-12-18 02:08:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_pool_populate [2021-12-18 02:08:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cmdbuf_mutex [2021-12-18 02:08:37,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cmdbuf_mutex [2021-12-18 02:08:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cmdbuf_mutex [2021-12-18 02:08:37,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cmdbuf_mutex [2021-12-18 02:08:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_crtc_destroy [2021-12-18 02:08:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_crtc_destroy [2021-12-18 02:08:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_clean_mm [2021-12-18 02:08:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_clean_mm [2021-12-18 02:08:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_send_stop [2021-12-18 02:08:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_send_stop [2021-12-18 02:08:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 02:08:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure drm_vblank_cleanup [2021-12-18 02:08:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_vblank_cleanup [2021-12-18 02:08:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-18 02:08:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-18 02:08:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 02:08:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 02:08:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_unref [2021-12-18 02:08:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_unref [2021-12-18 02:08:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_create [2021-12-18 02:08:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_create [2021-12-18 02:08:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_resource_unreference [2021-12-18 02:08:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_resource_unreference [2021-12-18 02:08:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2021-12-18 02:08:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2021-12-18 02:08:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_bo_get_guest_ptr [2021-12-18 02:08:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_bo_get_guest_ptr [2021-12-18 02:08:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_to_placement [2021-12-18 02:08:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_to_placement [2021-12-18 02:08:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-18 02:08:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-18 02:08:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fences_update [2021-12-18 02:08:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fences_update [2021-12-18 02:08:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sync_obj_unref [2021-12-18 02:08:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sync_obj_unref [2021-12-18 02:08:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_crtc_set_config [2021-12-18 02:08:37,830 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_crtc_set_config [2021-12-18 02:08:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-12-18 02:08:37,830 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-12-18 02:08:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-18 02:08:37,830 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-18 02:08:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2021-12-18 02:08:37,830 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2021-12-18 02:08:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_is_full [2021-12-18 02:08:37,831 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_is_full [2021-12-18 02:08:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_send_put [2021-12-18 02:08:37,831 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_send_put [2021-12-18 02:08:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_marker_pull [2021-12-18 02:08:37,831 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_marker_pull [2021-12-18 02:08:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure fb_deferred_io_cleanup [2021-12-18 02:08:37,831 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_deferred_io_cleanup [2021-12-18 02:08:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-18 02:08:37,832 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-18 02:08:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_update_seqno [2021-12-18 02:08:37,832 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_update_seqno [2021-12-18 02:08:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_fb_surf_mutex [2021-12-18 02:08:37,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_fb_surf_mutex [2021-12-18 02:08:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-18 02:08:37,832 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-18 02:08:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure getrawmonotonic [2021-12-18 02:08:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure getrawmonotonic [2021-12-18 02:08:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fences_perform_actions [2021-12-18 02:08:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fences_perform_actions [2021-12-18 02:08:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_encoder_destroy [2021-12-18 02:08:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_encoder_destroy [2021-12-18 02:08:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure fill_flush [2021-12-18 02:08:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure fill_flush [2021-12-18 02:08:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock [2021-12-18 02:08:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock [2021-12-18 02:08:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 02:08:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 02:08:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_unreference [2021-12-18 02:08:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_unreference [2021-12-18 02:08:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_surface_unreference [2021-12-18 02:08:37,835 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_surface_unreference [2021-12-18 02:08:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_eu_fence_buffer_objects [2021-12-18 02:08:37,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_eu_fence_buffer_objects [2021-12-18 02:08:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_fifo_mutex [2021-12-18 02:08:37,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_fifo_mutex [2021-12-18 02:08:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 02:08:37,835 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 02:08:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_obj_wait [2021-12-18 02:08:37,836 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_obj_wait [2021-12-18 02:08:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_pm_prepare [2021-12-18 02:08:37,836 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_pm_prepare [2021-12-18 02:08:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure drm_master_put [2021-12-18 02:08:37,836 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_master_put [2021-12-18 02:08:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-18 02:08:37,836 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-18 02:08:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_goal_irq_mutex [2021-12-18 02:08:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_goal_irq_mutex [2021-12-18 02:08:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_bo_pin [2021-12-18 02:08:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_bo_pin [2021-12-18 02:08:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 02:08:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-18 02:08:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-18 02:08:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_init [2021-12-18 02:08:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_init [2021-12-18 02:08:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure timespec_sub [2021-12-18 02:08:37,838 INFO L138 BoogieDeclarations]: Found implementation of procedure timespec_sub [2021-12-18 02:08:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_close [2021-12-18 02:08:37,838 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_close [2021-12-18 02:08:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 02:08:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_pm_resume [2021-12-18 02:08:37,839 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_pm_resume [2021-12-18 02:08:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-18 02:08:37,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-18 02:08:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_unref [2021-12-18 02:08:37,839 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_unref [2021-12-18 02:08:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 02:08:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fb_close [2021-12-18 02:08:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fb_close [2021-12-18 02:08:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ttm_unbind [2021-12-18 02:08:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ttm_unbind [2021-12-18 02:08:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-12-18 02:08:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-12-18 02:08:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_pm_suspend [2021-12-18 02:08:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_pm_suspend [2021-12-18 02:08:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 02:08:37,841 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 02:08:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_unpin [2021-12-18 02:08:37,841 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_unpin [2021-12-18 02:08:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_kms_restore_vga [2021-12-18 02:08:37,841 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_kms_restore_vga [2021-12-18 02:08:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_request_device [2021-12-18 02:08:37,841 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_request_device [2021-12-18 02:08:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_obj_unreference [2021-12-18 02:08:37,842 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_obj_unreference [2021-12-18 02:08:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-12-18 02:08:37,842 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-12-18 02:08:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-18 02:08:37,842 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-18 02:08:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex [2021-12-18 02:08:37,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex [2021-12-18 02:08:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_unref [2021-12-18 02:08:37,843 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_unref [2021-12-18 02:08:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_fifo_down [2021-12-18 02:08:37,843 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_fifo_down [2021-12-18 02:08:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_connector_destroy [2021-12-18 02:08:37,843 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_connector_destroy [2021-12-18 02:08:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_read [2021-12-18 02:08:37,843 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_read [2021-12-18 02:08:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2021-12-18 02:08:37,844 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2021-12-18 02:08:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 02:08:37,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 02:08:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-18 02:08:37,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-18 02:08:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_obj_destroy_locked [2021-12-18 02:08:37,844 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_obj_destroy_locked [2021-12-18 02:08:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_fifo_destroy [2021-12-18 02:08:37,845 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_fifo_destroy [2021-12-18 02:08:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_pool_unpopulate [2021-12-18 02:08:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_seqno_waiter_remove [2021-12-18 02:08:37,845 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_seqno_waiter_remove [2021-12-18 02:08:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_user_stream_base_release [2021-12-18 02:08:37,845 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_user_stream_base_release [2021-12-18 02:08:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_release_device [2021-12-18 02:08:37,845 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_release_device [2021-12-18 02:08:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_validate [2021-12-18 02:08:37,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_validate [2021-12-18 02:08:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_driver_unload [2021-12-18 02:08:37,846 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_driver_unload [2021-12-18 02:08:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_fb_surf_mutex [2021-12-18 02:08:37,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_fb_surf_mutex [2021-12-18 02:08:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-18 02:08:37,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-18 02:08:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-12-18 02:08:37,847 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-12-18 02:08:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_mem_global_free [2021-12-18 02:08:37,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_mem_global_free [2021-12-18 02:08:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_write_unlock [2021-12-18 02:08:37,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_write_unlock [2021-12-18 02:08:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-18 02:08:37,847 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-18 02:08:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 02:08:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_surface_destroy_encode [2021-12-18 02:08:37,848 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_surface_destroy_encode [2021-12-18 02:08:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_work_func [2021-12-18 02:08:37,848 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_work_func [2021-12-18 02:08:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_update_stream [2021-12-18 02:08:37,848 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_update_stream [2021-12-18 02:08:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_reference [2021-12-18 02:08:37,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_reference [2021-12-18 02:08:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2021-12-18 02:08:37,849 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2021-12-18 02:08:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_connector_destroy [2021-12-18 02:08:37,849 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_connector_destroy [2021-12-18 02:08:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_encoder_destroy [2021-12-18 02:08:37,850 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_encoder_destroy [2021-12-18 02:08:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_cursor_update_dmabuf [2021-12-18 02:08:37,850 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_cursor_update_dmabuf [2021-12-18 02:08:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-18 02:08:37,850 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-18 02:08:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 02:08:37,850 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 02:08:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_framebuffer_dmabuf_unpin [2021-12-18 02:08:37,851 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_framebuffer_dmabuf_unpin [2021-12-18 02:08:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_user_fence_base_release [2021-12-18 02:08:37,851 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_user_fence_base_release [2021-12-18 02:08:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~uint32_t~0~TO~~bool~0 [2021-12-18 02:08:37,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~uint32_t~0~TO~~bool~0 [2021-12-18 02:08:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-18 02:08:37,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-18 02:08:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_release_mutex [2021-12-18 02:08:37,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_release_mutex [2021-12-18 02:08:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_3d_resource_inc [2021-12-18 02:08:37,852 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_3d_resource_inc [2021-12-18 02:08:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_stop [2021-12-18 02:08:37,852 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_stop [2021-12-18 02:08:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_priv [2021-12-18 02:08:37,852 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_priv [2021-12-18 02:08:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 02:08:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_goal_irq_mutex [2021-12-18 02:08:37,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_goal_irq_mutex [2021-12-18 02:08:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_commit [2021-12-18 02:08:37,853 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_commit [2021-12-18 02:08:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_init [2021-12-18 02:08:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-12-18 02:08:37,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-12-18 02:08:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_hw_mutex [2021-12-18 02:08:37,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_hw_mutex [2021-12-18 02:08:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_event_fence_action_cleanup [2021-12-18 02:08:37,854 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_event_fence_action_cleanup [2021-12-18 02:08:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_execbuf_unpin_panic [2021-12-18 02:08:37,854 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_execbuf_unpin_panic [2021-12-18 02:08:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_backing_alloc [2021-12-18 02:08:37,854 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_backing_alloc [2021-12-18 02:08:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_obj_signaled [2021-12-18 02:08:37,855 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_obj_signaled [2021-12-18 02:08:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_resume_all [2021-12-18 02:08:37,855 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_resume_all [2021-12-18 02:08:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_reserve [2021-12-18 02:08:37,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_reserve [2021-12-18 02:08:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_idle [2021-12-18 02:08:37,855 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_idle [2021-12-18 02:08:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_reference [2021-12-18 02:08:37,856 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_reference [2021-12-18 02:08:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 02:08:37,856 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 02:08:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_base_object_unref [2021-12-18 02:08:37,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_base_object_unref [2021-12-18 02:08:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_master [2021-12-18 02:08:37,856 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_master [2021-12-18 02:08:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_user_fence_create [2021-12-18 02:08:37,857 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_user_fence_create [2021-12-18 02:08:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_to_vram [2021-12-18 02:08:37,857 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_to_vram [2021-12-18 02:08:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_remove [2021-12-18 02:08:37,857 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_remove [2021-12-18 02:08:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_surface_destroy_size [2021-12-18 02:08:37,857 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_surface_destroy_size [2021-12-18 02:08:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure drm_framebuffer_cleanup [2021-12-18 02:08:37,858 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_framebuffer_cleanup [2021-12-18 02:08:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_framebuffer_dmabuf_pin [2021-12-18 02:08:37,858 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_framebuffer_dmabuf_pin [2021-12-18 02:08:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2021-12-18 02:08:37,858 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2021-12-18 02:08:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock [2021-12-18 02:08:37,858 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock [2021-12-18 02:08:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_user_surface_base_release [2021-12-18 02:08:37,859 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_user_surface_base_release [2021-12-18 02:08:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_mem_glob [2021-12-18 02:08:37,859 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_mem_glob [2021-12-18 02:08:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_execbuf_fence_commands [2021-12-18 02:08:37,859 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_execbuf_fence_commands [2021-12-18 02:08:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_ping_host [2021-12-18 02:08:37,859 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_ping_host [2021-12-18 02:08:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_object_device_release [2021-12-18 02:08:37,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_object_device_release [2021-12-18 02:08:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_release [2021-12-18 02:08:37,860 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_release [2021-12-18 02:08:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2021-12-18 02:08:37,860 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2021-12-18 02:08:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_send_fence [2021-12-18 02:08:37,860 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_send_fence [2021-12-18 02:08:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure fill_escape [2021-12-18 02:08:37,861 INFO L138 BoogieDeclarations]: Found implementation of procedure fill_escape [2021-12-18 02:08:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_manager_takedown [2021-12-18 02:08:37,861 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_manager_takedown [2021-12-18 02:08:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 02:08:37,861 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 02:08:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_execbuf_release_pinned_bo [2021-12-18 02:08:37,861 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_execbuf_release_pinned_bo [2021-12-18 02:08:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-12-18 02:08:37,861 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-12-18 02:08:37,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 02:08:37,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-18 02:08:37,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-18 02:08:37,862 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_timespec [2021-12-18 02:08:37,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_timespec [2021-12-18 02:08:38,899 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 02:08:38,905 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 02:09:18,440 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 02:09:18,475 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 02:09:18,476 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-18 02:09:18,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:09:18 BoogieIcfgContainer [2021-12-18 02:09:18,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 02:09:18,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 02:09:18,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 02:09:18,486 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 02:09:18,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 02:08:27" (1/3) ... [2021-12-18 02:09:18,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a433c9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:09:18, skipping insertion in model container [2021-12-18 02:09:18,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:36" (2/3) ... [2021-12-18 02:09:18,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a433c9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:09:18, skipping insertion in model container [2021-12-18 02:09:18,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:09:18" (3/3) ... [2021-12-18 02:09:18,490 INFO L111 eAbstractionObserver]: Analyzing ICFG main17_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i [2021-12-18 02:09:18,495 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 02:09:18,495 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 02:09:18,560 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 02:09:18,568 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 02:09:18,568 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 02:09:18,636 INFO L276 IsEmpty]: Start isEmpty. Operand has 3067 states, 1875 states have (on average 1.2597333333333334) internal successors, (2362), 1994 states have internal predecessors, (2362), 960 states have call successors, (960), 230 states have call predecessors, (960), 230 states have return successors, (960), 931 states have call predecessors, (960), 960 states have call successors, (960) [2021-12-18 02:09:18,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-18 02:09:18,640 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:09:18,641 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 02:09:18,641 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:09:18,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:09:18,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1840002574, now seen corresponding path program 1 times [2021-12-18 02:09:18,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:09:18,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410613900] [2021-12-18 02:09:18,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:09:18,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:09:19,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:09:19,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:09:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:09:19,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 02:09:19,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:09:19,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410613900] [2021-12-18 02:09:19,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410613900] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:09:19,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:09:19,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 02:09:19,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081341771] [2021-12-18 02:09:19,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:09:19,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 02:09:19,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:09:19,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 02:09:19,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 02:09:19,622 INFO L87 Difference]: Start difference. First operand has 3067 states, 1875 states have (on average 1.2597333333333334) internal successors, (2362), 1994 states have internal predecessors, (2362), 960 states have call successors, (960), 230 states have call predecessors, (960), 230 states have return successors, (960), 931 states have call predecessors, (960), 960 states have call successors, (960) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 02:09:20,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:09:22,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:09:30,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:09:34,963 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:09:39,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:09:41,510 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:09:46,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:09:52,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:10:20,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:10:20,227 INFO L93 Difference]: Finished difference Result 10119 states and 14965 transitions. [2021-12-18 02:10:20,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 02:10:20,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-12-18 02:10:20,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:10:20,291 INFO L225 Difference]: With dead ends: 10119 [2021-12-18 02:10:20,292 INFO L226 Difference]: Without dead ends: 6997 [2021-12-18 02:10:20,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 02:10:20,330 INFO L933 BasicCegarLoop]: 4526 mSDtfsCounter, 6692 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 7416 mSolverCounterSat, 3782 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7521 SdHoareTripleChecker+Valid, 5622 SdHoareTripleChecker+Invalid, 11203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3782 IncrementalHoareTripleChecker+Valid, 7416 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.2s IncrementalHoareTripleChecker+Time [2021-12-18 02:10:20,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7521 Valid, 5622 Invalid, 11203 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3782 Valid, 7416 Invalid, 5 Unknown, 0 Unchecked, 59.2s Time] [2021-12-18 02:10:20,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6997 states. [2021-12-18 02:10:20,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6997 to 6454. [2021-12-18 02:10:20,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6454 states, 3944 states have (on average 1.2423935091277891) internal successors, (4900), 4165 states have internal predecessors, (4900), 1995 states have call successors, (1995), 452 states have call predecessors, (1995), 514 states have return successors, (2237), 1966 states have call predecessors, (2237), 1967 states have call successors, (2237) [2021-12-18 02:10:20,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6454 states to 6454 states and 9132 transitions. [2021-12-18 02:10:20,866 INFO L78 Accepts]: Start accepts. Automaton has 6454 states and 9132 transitions. Word has length 12 [2021-12-18 02:10:20,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:10:20,866 INFO L470 AbstractCegarLoop]: Abstraction has 6454 states and 9132 transitions. [2021-12-18 02:10:20,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 02:10:20,867 INFO L276 IsEmpty]: Start isEmpty. Operand 6454 states and 9132 transitions. [2021-12-18 02:10:20,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-18 02:10:20,868 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:10:20,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 02:10:20,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 02:10:20,869 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:10:20,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:10:20,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1203679267, now seen corresponding path program 1 times [2021-12-18 02:10:20,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:10:20,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088915297] [2021-12-18 02:10:20,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:10:20,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:10:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:10:21,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:10:21,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:10:21,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 02:10:21,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:10:21,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088915297] [2021-12-18 02:10:21,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088915297] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:10:21,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:10:21,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 02:10:21,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799651485] [2021-12-18 02:10:21,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:10:21,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 02:10:21,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:10:21,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 02:10:21,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 02:10:21,464 INFO L87 Difference]: Start difference. First operand 6454 states and 9132 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 02:10:32,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:10:35,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:10:39,418 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:10:41,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:10:44,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:10:52,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:10:52,639 INFO L93 Difference]: Finished difference Result 6984 states and 9969 transitions. [2021-12-18 02:10:52,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 02:10:52,640 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-12-18 02:10:52,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:10:52,780 INFO L225 Difference]: With dead ends: 6984 [2021-12-18 02:10:52,781 INFO L226 Difference]: Without dead ends: 6981 [2021-12-18 02:10:52,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 02:10:52,784 INFO L933 BasicCegarLoop]: 3297 mSDtfsCounter, 5124 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 2798 mSolverCounterSat, 2785 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5565 SdHoareTripleChecker+Valid, 3317 SdHoareTripleChecker+Invalid, 5586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2785 IncrementalHoareTripleChecker+Valid, 2798 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time [2021-12-18 02:10:52,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5565 Valid, 3317 Invalid, 5586 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2785 Valid, 2798 Invalid, 3 Unknown, 0 Unchecked, 30.5s Time] [2021-12-18 02:10:52,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6981 states. [2021-12-18 02:10:53,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6981 to 6453. [2021-12-18 02:10:53,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6453 states, 3944 states have (on average 1.2421399594320486) internal successors, (4899), 4164 states have internal predecessors, (4899), 1994 states have call successors, (1994), 452 states have call predecessors, (1994), 514 states have return successors, (2237), 1966 states have call predecessors, (2237), 1967 states have call successors, (2237) [2021-12-18 02:10:53,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6453 states to 6453 states and 9130 transitions. [2021-12-18 02:10:53,186 INFO L78 Accepts]: Start accepts. Automaton has 6453 states and 9130 transitions. Word has length 13 [2021-12-18 02:10:53,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:10:53,187 INFO L470 AbstractCegarLoop]: Abstraction has 6453 states and 9130 transitions. [2021-12-18 02:10:53,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 02:10:53,188 INFO L276 IsEmpty]: Start isEmpty. Operand 6453 states and 9130 transitions. [2021-12-18 02:10:53,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-18 02:10:53,189 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:10:53,189 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 02:10:53,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 02:10:53,189 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:10:53,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:10:53,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1342469199, now seen corresponding path program 1 times [2021-12-18 02:10:53,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:10:53,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845482821] [2021-12-18 02:10:53,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:10:53,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:10:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:10:53,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:10:53,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:10:53,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 02:10:53,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:10:53,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845482821] [2021-12-18 02:10:53,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845482821] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:10:53,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:10:53,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 02:10:53,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944506065] [2021-12-18 02:10:53,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:10:53,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 02:10:53,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:10:53,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 02:10:53,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 02:10:53,774 INFO L87 Difference]: Start difference. First operand 6453 states and 9130 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 02:10:55,091 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:10:56,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:11:03,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:11:07,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:11:12,040 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:11:14,084 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:11:17,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:11:24,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:11:24,838 INFO L93 Difference]: Finished difference Result 6997 states and 9976 transitions. [2021-12-18 02:11:24,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 02:11:24,839 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-12-18 02:11:24,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:11:24,880 INFO L225 Difference]: With dead ends: 6997 [2021-12-18 02:11:24,880 INFO L226 Difference]: Without dead ends: 6993 [2021-12-18 02:11:24,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 02:11:24,891 INFO L933 BasicCegarLoop]: 3322 mSDtfsCounter, 5112 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 2779 mSolverCounterSat, 2822 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5513 SdHoareTripleChecker+Valid, 3349 SdHoareTripleChecker+Invalid, 5606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2822 IncrementalHoareTripleChecker+Valid, 2779 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time [2021-12-18 02:11:24,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5513 Valid, 3349 Invalid, 5606 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2822 Valid, 2779 Invalid, 5 Unknown, 0 Unchecked, 30.5s Time] [2021-12-18 02:11:24,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6993 states. [2021-12-18 02:11:25,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6993 to 6463. [2021-12-18 02:11:25,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6463 states, 3952 states have (on average 1.2408906882591093) internal successors, (4904), 4170 states have internal predecessors, (4904), 1992 states have call successors, (1992), 456 states have call predecessors, (1992), 518 states have return successors, (2237), 1966 states have call predecessors, (2237), 1967 states have call successors, (2237) [2021-12-18 02:11:25,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6463 states to 6463 states and 9133 transitions. [2021-12-18 02:11:25,371 INFO L78 Accepts]: Start accepts. Automaton has 6463 states and 9133 transitions. Word has length 14 [2021-12-18 02:11:25,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:11:25,371 INFO L470 AbstractCegarLoop]: Abstraction has 6463 states and 9133 transitions. [2021-12-18 02:11:25,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 02:11:25,372 INFO L276 IsEmpty]: Start isEmpty. Operand 6463 states and 9133 transitions. [2021-12-18 02:11:25,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-18 02:11:25,373 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:11:25,373 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 02:11:25,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 02:11:25,373 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:11:25,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:11:25,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1331311846, now seen corresponding path program 1 times [2021-12-18 02:11:25,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:11:25,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518845466] [2021-12-18 02:11:25,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:11:25,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:11:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:11:25,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:11:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:11:25,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 02:11:25,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:11:25,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518845466] [2021-12-18 02:11:25,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518845466] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:11:25,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:11:25,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 02:11:25,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144041639] [2021-12-18 02:11:25,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:11:25,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 02:11:25,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:11:25,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 02:11:25,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 02:11:25,929 INFO L87 Difference]: Start difference. First operand 6463 states and 9133 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 02:11:27,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:11:28,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:11:36,496 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:11:42,130 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:11:48,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:11:55,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:11:57,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:12:02,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:12:05,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:12:09,610 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:12:11,643 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:12:14,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:12:17,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:12:32,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:12:32,641 INFO L93 Difference]: Finished difference Result 19977 states and 30237 transitions. [2021-12-18 02:12:32,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 02:12:32,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-12-18 02:12:32,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:12:32,726 INFO L225 Difference]: With dead ends: 19977 [2021-12-18 02:12:32,726 INFO L226 Difference]: Without dead ends: 13520 [2021-12-18 02:12:32,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 02:12:32,781 INFO L933 BasicCegarLoop]: 4176 mSDtfsCounter, 6628 mSDsluCounter, 1355 mSDsCounter, 0 mSdLazyCounter, 7227 mSolverCounterSat, 3844 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7409 SdHoareTripleChecker+Valid, 5531 SdHoareTripleChecker+Invalid, 11081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3844 IncrementalHoareTripleChecker+Valid, 7227 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.4s IncrementalHoareTripleChecker+Time [2021-12-18 02:12:32,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7409 Valid, 5531 Invalid, 11081 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3844 Valid, 7227 Invalid, 10 Unknown, 0 Unchecked, 65.4s Time] [2021-12-18 02:12:32,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13520 states. [2021-12-18 02:12:33,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13520 to 13415. [2021-12-18 02:12:33,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13415 states, 8211 states have (on average 1.2357812690293508) internal successors, (10147), 8669 states have internal predecessors, (10147), 4058 states have call successors, (4058), 904 states have call predecessors, (4058), 1145 states have return successors, (5770), 4109 states have call predecessors, (5770), 4011 states have call successors, (5770) [2021-12-18 02:12:33,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13415 states to 13415 states and 19975 transitions. [2021-12-18 02:12:33,808 INFO L78 Accepts]: Start accepts. Automaton has 13415 states and 19975 transitions. Word has length 15 [2021-12-18 02:12:33,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:12:33,809 INFO L470 AbstractCegarLoop]: Abstraction has 13415 states and 19975 transitions. [2021-12-18 02:12:33,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 02:12:33,809 INFO L276 IsEmpty]: Start isEmpty. Operand 13415 states and 19975 transitions. [2021-12-18 02:12:33,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-18 02:12:33,810 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:12:33,810 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 02:12:33,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 02:12:33,810 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:12:33,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:12:33,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1680816812, now seen corresponding path program 1 times [2021-12-18 02:12:33,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:12:33,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085880892] [2021-12-18 02:12:33,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:12:33,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:12:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:12:34,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:12:34,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:12:34,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 02:12:34,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:12:34,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085880892] [2021-12-18 02:12:34,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085880892] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:12:34,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:12:34,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 02:12:34,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614865145] [2021-12-18 02:12:34,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:12:34,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 02:12:34,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:12:34,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 02:12:34,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 02:12:34,304 INFO L87 Difference]: Start difference. First operand 13415 states and 19975 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 02:12:35,445 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:12:44,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:12:48,012 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:12:52,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:12:54,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:12:57,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:13:04,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:13:04,135 INFO L93 Difference]: Finished difference Result 13734 states and 20348 transitions. [2021-12-18 02:13:04,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 02:13:04,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2021-12-18 02:13:04,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:13:04,195 INFO L225 Difference]: With dead ends: 13734 [2021-12-18 02:13:04,195 INFO L226 Difference]: Without dead ends: 13730 [2021-12-18 02:13:04,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 02:13:04,206 INFO L933 BasicCegarLoop]: 3372 mSDtfsCounter, 5082 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 2832 mSolverCounterSat, 2809 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5479 SdHoareTripleChecker+Valid, 3432 SdHoareTripleChecker+Invalid, 5645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2809 IncrementalHoareTripleChecker+Valid, 2832 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.0s IncrementalHoareTripleChecker+Time [2021-12-18 02:13:04,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5479 Valid, 3432 Invalid, 5645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2809 Valid, 2832 Invalid, 4 Unknown, 0 Unchecked, 29.0s Time] [2021-12-18 02:13:04,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13730 states. [2021-12-18 02:13:04,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13730 to 13645. [2021-12-18 02:13:04,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13645 states, 8371 states have (on average 1.2321108589176921) internal successors, (10314), 8831 states have internal predecessors, (10314), 4072 states have call successors, (4072), 960 states have call predecessors, (4072), 1201 states have return successors, (5786), 4125 states have call predecessors, (5786), 4027 states have call successors, (5786) [2021-12-18 02:13:04,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13645 states to 13645 states and 20172 transitions. [2021-12-18 02:13:04,901 INFO L78 Accepts]: Start accepts. Automaton has 13645 states and 20172 transitions. Word has length 16 [2021-12-18 02:13:04,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:13:04,901 INFO L470 AbstractCegarLoop]: Abstraction has 13645 states and 20172 transitions. [2021-12-18 02:13:04,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 02:13:04,902 INFO L276 IsEmpty]: Start isEmpty. Operand 13645 states and 20172 transitions. [2021-12-18 02:13:04,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-18 02:13:04,902 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:13:04,902 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 02:13:04,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 02:13:04,903 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:13:04,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:13:04,903 INFO L85 PathProgramCache]: Analyzing trace with hash -567519831, now seen corresponding path program 1 times [2021-12-18 02:13:04,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:13:04,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727508920] [2021-12-18 02:13:04,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:13:04,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:13:05,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:13:05,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:13:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:13:05,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 02:13:05,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:13:05,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727508920] [2021-12-18 02:13:05,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727508920] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:13:05,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:13:05,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 02:13:05,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122659393] [2021-12-18 02:13:05,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:13:05,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 02:13:05,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:13:05,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 02:13:05,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 02:13:05,366 INFO L87 Difference]: Start difference. First operand 13645 states and 20172 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 02:13:06,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:13:08,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:13:16,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:13:19,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:13:23,623 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:13:25,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:13:28,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:13:35,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:13:35,734 INFO L93 Difference]: Finished difference Result 14500 states and 21531 transitions. [2021-12-18 02:13:35,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 02:13:35,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-12-18 02:13:35,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:13:35,812 INFO L225 Difference]: With dead ends: 14500 [2021-12-18 02:13:35,812 INFO L226 Difference]: Without dead ends: 14496 [2021-12-18 02:13:35,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 02:13:35,830 INFO L933 BasicCegarLoop]: 3444 mSDtfsCounter, 5056 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 2777 mSolverCounterSat, 2917 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5385 SdHoareTripleChecker+Valid, 3639 SdHoareTripleChecker+Invalid, 5698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2917 IncrementalHoareTripleChecker+Valid, 2777 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.5s IncrementalHoareTripleChecker+Time [2021-12-18 02:13:35,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5385 Valid, 3639 Invalid, 5698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2917 Valid, 2777 Invalid, 4 Unknown, 0 Unchecked, 29.5s Time] [2021-12-18 02:13:35,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14496 states. [2021-12-18 02:13:36,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14496 to 14075. [2021-12-18 02:13:36,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14075 states, 8641 states have (on average 1.2309917833584076) internal successors, (10637), 9107 states have internal predecessors, (10637), 4178 states have call successors, (4178), 1010 states have call predecessors, (4178), 1255 states have return successors, (5958), 4237 states have call predecessors, (5958), 4135 states have call successors, (5958) [2021-12-18 02:13:36,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14075 states to 14075 states and 20773 transitions. [2021-12-18 02:13:36,690 INFO L78 Accepts]: Start accepts. Automaton has 14075 states and 20773 transitions. Word has length 17 [2021-12-18 02:13:36,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:13:36,691 INFO L470 AbstractCegarLoop]: Abstraction has 14075 states and 20773 transitions. [2021-12-18 02:13:36,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 02:13:36,691 INFO L276 IsEmpty]: Start isEmpty. Operand 14075 states and 20773 transitions. [2021-12-18 02:13:36,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-18 02:13:36,692 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:13:36,692 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 02:13:36,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 02:13:36,692 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:13:36,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:13:36,693 INFO L85 PathProgramCache]: Analyzing trace with hash -415046921, now seen corresponding path program 1 times [2021-12-18 02:13:36,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:13:36,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138598824] [2021-12-18 02:13:36,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:13:36,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:13:36,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:13:37,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:13:37,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:13:37,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 02:13:37,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:13:37,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138598824] [2021-12-18 02:13:37,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138598824] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:13:37,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:13:37,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 02:13:37,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35160373] [2021-12-18 02:13:37,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:13:37,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 02:13:37,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:13:37,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 02:13:37,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 02:13:37,117 INFO L87 Difference]: Start difference. First operand 14075 states and 20773 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 02:13:38,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:13:47,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:13:51,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:13:56,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:13:58,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:14:01,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:14:07,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:14:07,898 INFO L93 Difference]: Finished difference Result 14512 states and 21543 transitions. [2021-12-18 02:14:07,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 02:14:07,899 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2021-12-18 02:14:07,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:14:07,963 INFO L225 Difference]: With dead ends: 14512 [2021-12-18 02:14:07,963 INFO L226 Difference]: Without dead ends: 14509 [2021-12-18 02:14:07,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 02:14:07,976 INFO L933 BasicCegarLoop]: 3340 mSDtfsCounter, 5067 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 2804 mSolverCounterSat, 2741 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5505 SdHoareTripleChecker+Valid, 3360 SdHoareTripleChecker+Invalid, 5550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2741 IncrementalHoareTripleChecker+Valid, 2804 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.8s IncrementalHoareTripleChecker+Time [2021-12-18 02:14:07,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5505 Valid, 3360 Invalid, 5550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2741 Valid, 2804 Invalid, 5 Unknown, 0 Unchecked, 29.8s Time] [2021-12-18 02:14:07,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14509 states. [2021-12-18 02:14:08,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14509 to 14074. [2021-12-18 02:14:08,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14074 states, 8641 states have (on average 1.2308760560120355) internal successors, (10636), 9106 states have internal predecessors, (10636), 4177 states have call successors, (4177), 1010 states have call predecessors, (4177), 1255 states have return successors, (5958), 4237 states have call predecessors, (5958), 4135 states have call successors, (5958) [2021-12-18 02:14:08,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14074 states to 14074 states and 20771 transitions. [2021-12-18 02:14:08,825 INFO L78 Accepts]: Start accepts. Automaton has 14074 states and 20771 transitions. Word has length 18 [2021-12-18 02:14:08,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:14:08,826 INFO L470 AbstractCegarLoop]: Abstraction has 14074 states and 20771 transitions. [2021-12-18 02:14:08,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 02:14:08,826 INFO L276 IsEmpty]: Start isEmpty. Operand 14074 states and 20771 transitions. [2021-12-18 02:14:08,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-18 02:14:08,827 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:14:08,828 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 02:14:08,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 02:14:08,828 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:14:08,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:14:08,828 INFO L85 PathProgramCache]: Analyzing trace with hash 16650860, now seen corresponding path program 1 times [2021-12-18 02:14:08,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:14:08,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900579153] [2021-12-18 02:14:08,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:14:08,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:14:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:14:09,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:14:09,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:14:09,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 02:14:09,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:14:09,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900579153] [2021-12-18 02:14:09,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900579153] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:14:09,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:14:09,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 02:14:09,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487640438] [2021-12-18 02:14:09,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:14:09,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 02:14:09,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:14:09,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 02:14:09,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 02:14:09,308 INFO L87 Difference]: Start difference. First operand 14074 states and 20771 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 02:14:10,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:14:12,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:14:23,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:14:27,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:14:37,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:14:42,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:14:44,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:14:48,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:15:07,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:15:09,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:15:12,046 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:15:16,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:15:16,351 INFO L93 Difference]: Finished difference Result 42778 states and 68718 transitions. [2021-12-18 02:15:16,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 02:15:16,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2021-12-18 02:15:16,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:15:16,522 INFO L225 Difference]: With dead ends: 42778 [2021-12-18 02:15:16,522 INFO L226 Difference]: Without dead ends: 28710 [2021-12-18 02:15:16,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 02:15:16,655 INFO L933 BasicCegarLoop]: 4612 mSDtfsCounter, 6515 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 7469 mSolverCounterSat, 3780 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7350 SdHoareTripleChecker+Valid, 5734 SdHoareTripleChecker+Invalid, 11257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3780 IncrementalHoareTripleChecker+Valid, 7469 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.0s IncrementalHoareTripleChecker+Time [2021-12-18 02:15:16,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7350 Valid, 5734 Invalid, 11257 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3780 Valid, 7469 Invalid, 8 Unknown, 0 Unchecked, 65.0s Time] [2021-12-18 02:15:16,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28710 states. [2021-12-18 02:15:18,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28710 to 27800. [2021-12-18 02:15:18,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27800 states, 17093 states have (on average 1.231088749780612) internal successors, (21043), 17990 states have internal predecessors, (21043), 8229 states have call successors, (8229), 2009 states have call predecessors, (8229), 2477 states have return successors, (13389), 8348 states have call predecessors, (13389), 8165 states have call successors, (13389) [2021-12-18 02:15:18,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27800 states to 27800 states and 42661 transitions. [2021-12-18 02:15:18,576 INFO L78 Accepts]: Start accepts. Automaton has 27800 states and 42661 transitions. Word has length 19 [2021-12-18 02:15:18,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:15:18,577 INFO L470 AbstractCegarLoop]: Abstraction has 27800 states and 42661 transitions. [2021-12-18 02:15:18,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 02:15:18,577 INFO L276 IsEmpty]: Start isEmpty. Operand 27800 states and 42661 transitions. [2021-12-18 02:15:18,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-18 02:15:18,578 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:15:18,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 02:15:18,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 02:15:18,578 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:15:18,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:15:18,579 INFO L85 PathProgramCache]: Analyzing trace with hash 514385050, now seen corresponding path program 1 times [2021-12-18 02:15:18,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:15:18,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578131528] [2021-12-18 02:15:18,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:15:18,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:15:18,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:15:19,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:15:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:15:19,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 02:15:19,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:15:19,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578131528] [2021-12-18 02:15:19,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578131528] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:15:19,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:15:19,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 02:15:19,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122745104] [2021-12-18 02:15:19,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:15:19,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 02:15:19,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:15:19,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 02:15:19,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 02:15:19,267 INFO L87 Difference]: Start difference. First operand 27800 states and 42661 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 02:15:20,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:15:22,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:15:31,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:15:34,821 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:15:38,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:15:40,674 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:15:43,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:15:49,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:15:49,834 INFO L93 Difference]: Finished difference Result 28672 states and 44262 transitions. [2021-12-18 02:15:49,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 02:15:49,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2021-12-18 02:15:49,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:15:49,966 INFO L225 Difference]: With dead ends: 28672 [2021-12-18 02:15:49,966 INFO L226 Difference]: Without dead ends: 28669 [2021-12-18 02:15:49,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 02:15:49,993 INFO L933 BasicCegarLoop]: 3291 mSDtfsCounter, 5095 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 2795 mSolverCounterSat, 2759 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5537 SdHoareTripleChecker+Valid, 3311 SdHoareTripleChecker+Invalid, 5558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2759 IncrementalHoareTripleChecker+Valid, 2795 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.1s IncrementalHoareTripleChecker+Time [2021-12-18 02:15:49,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5537 Valid, 3311 Invalid, 5558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2759 Valid, 2795 Invalid, 4 Unknown, 0 Unchecked, 29.1s Time] [2021-12-18 02:15:50,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28669 states. [2021-12-18 02:15:51,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28669 to 27799. [2021-12-18 02:15:51,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27799 states, 17093 states have (on average 1.2310302462996547) internal successors, (21042), 17989 states have internal predecessors, (21042), 8228 states have call successors, (8228), 2009 states have call predecessors, (8228), 2477 states have return successors, (13389), 8348 states have call predecessors, (13389), 8165 states have call successors, (13389) [2021-12-18 02:15:51,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27799 states to 27799 states and 42659 transitions. [2021-12-18 02:15:51,777 INFO L78 Accepts]: Start accepts. Automaton has 27799 states and 42659 transitions. Word has length 20 [2021-12-18 02:15:51,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:15:51,778 INFO L470 AbstractCegarLoop]: Abstraction has 27799 states and 42659 transitions. [2021-12-18 02:15:51,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 02:15:51,778 INFO L276 IsEmpty]: Start isEmpty. Operand 27799 states and 42659 transitions. [2021-12-18 02:15:51,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-18 02:15:51,779 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:15:51,779 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 02:15:51,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 02:15:51,779 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:15:51,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:15:51,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1235719377, now seen corresponding path program 1 times [2021-12-18 02:15:51,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:15:51,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406046287] [2021-12-18 02:15:51,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:15:51,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:15:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:15:52,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:15:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:15:52,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 02:15:52,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:15:52,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406046287] [2021-12-18 02:15:52,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406046287] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:15:52,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:15:52,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 02:15:52,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905600652] [2021-12-18 02:15:52,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:15:52,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 02:15:52,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:15:52,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 02:15:52,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 02:15:52,250 INFO L87 Difference]: Start difference. First operand 27799 states and 42659 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 02:15:53,525 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:15:55,100 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:16:05,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:16:10,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:16:15,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:16:17,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:16:22,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:16:27,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:16:39,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:16:46,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:16:48,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:16:51,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:17:01,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:17:01,126 INFO L93 Difference]: Finished difference Result 83462 states and 143698 transitions. [2021-12-18 02:17:01,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 02:17:01,128 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2021-12-18 02:17:01,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:17:01,418 INFO L225 Difference]: With dead ends: 83462 [2021-12-18 02:17:01,418 INFO L226 Difference]: Without dead ends: 55669 [2021-12-18 02:17:01,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 02:17:01,630 INFO L933 BasicCegarLoop]: 4373 mSDtfsCounter, 6589 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 7307 mSolverCounterSat, 3704 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7395 SdHoareTripleChecker+Valid, 5469 SdHoareTripleChecker+Invalid, 11020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3704 IncrementalHoareTripleChecker+Valid, 7307 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.2s IncrementalHoareTripleChecker+Time [2021-12-18 02:17:01,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7395 Valid, 5469 Invalid, 11020 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3704 Valid, 7307 Invalid, 9 Unknown, 0 Unchecked, 65.2s Time] [2021-12-18 02:17:01,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55669 states. [2021-12-18 02:17:04,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55669 to 53901. [2021-12-18 02:17:04,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53901 states, 33243 states have (on average 1.232740727371176) internal successors, (40980), 34999 states have internal predecessors, (40980), 15799 states have call successors, (15799), 3957 states have call predecessors, (15799), 4858 states have return successors, (30623), 16018 states have call predecessors, (30623), 15699 states have call successors, (30623) [2021-12-18 02:17:05,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53901 states to 53901 states and 87402 transitions. [2021-12-18 02:17:05,042 INFO L78 Accepts]: Start accepts. Automaton has 53901 states and 87402 transitions. Word has length 21 [2021-12-18 02:17:05,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:17:05,043 INFO L470 AbstractCegarLoop]: Abstraction has 53901 states and 87402 transitions. [2021-12-18 02:17:05,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 02:17:05,043 INFO L276 IsEmpty]: Start isEmpty. Operand 53901 states and 87402 transitions. [2021-12-18 02:17:05,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-18 02:17:05,045 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:17:05,045 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 02:17:05,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 02:17:05,046 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:17:05,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:17:05,047 INFO L85 PathProgramCache]: Analyzing trace with hash 345623101, now seen corresponding path program 1 times [2021-12-18 02:17:05,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:17:05,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335962848] [2021-12-18 02:17:05,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:17:05,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:17:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:17:05,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:17:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:17:05,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 02:17:05,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:17:05,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335962848] [2021-12-18 02:17:05,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335962848] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:17:05,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:17:05,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 02:17:05,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514115109] [2021-12-18 02:17:05,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:17:05,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 02:17:05,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:17:05,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 02:17:05,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 02:17:05,802 INFO L87 Difference]: Start difference. First operand 53901 states and 87402 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 02:17:07,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:17:17,607 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:17:22,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:17:24,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:17:26,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:17:29,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:17:36,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:17:36,696 INFO L93 Difference]: Finished difference Result 55579 states and 90603 transitions. [2021-12-18 02:17:36,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 02:17:36,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2021-12-18 02:17:36,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:17:36,929 INFO L225 Difference]: With dead ends: 55579 [2021-12-18 02:17:36,929 INFO L226 Difference]: Without dead ends: 55576 [2021-12-18 02:17:36,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 02:17:36,961 INFO L933 BasicCegarLoop]: 3296 mSDtfsCounter, 5083 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 2793 mSolverCounterSat, 2753 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5525 SdHoareTripleChecker+Valid, 3316 SdHoareTripleChecker+Invalid, 5550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2753 IncrementalHoareTripleChecker+Valid, 2793 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.1s IncrementalHoareTripleChecker+Time [2021-12-18 02:17:36,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5525 Valid, 3316 Invalid, 5550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2753 Valid, 2793 Invalid, 4 Unknown, 0 Unchecked, 28.1s Time] [2021-12-18 02:17:37,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55576 states. [2021-12-18 02:17:39,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55576 to 53900. [2021-12-18 02:17:39,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53900 states, 33243 states have (on average 1.2327106458502541) internal successors, (40979), 34998 states have internal predecessors, (40979), 15798 states have call successors, (15798), 3957 states have call predecessors, (15798), 4858 states have return successors, (30623), 16018 states have call predecessors, (30623), 15699 states have call successors, (30623) [2021-12-18 02:17:40,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53900 states to 53900 states and 87400 transitions. [2021-12-18 02:17:40,439 INFO L78 Accepts]: Start accepts. Automaton has 53900 states and 87400 transitions. Word has length 22 [2021-12-18 02:17:40,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:17:40,439 INFO L470 AbstractCegarLoop]: Abstraction has 53900 states and 87400 transitions. [2021-12-18 02:17:40,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 02:17:40,439 INFO L276 IsEmpty]: Start isEmpty. Operand 53900 states and 87400 transitions. [2021-12-18 02:17:40,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-18 02:17:40,440 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:17:40,443 INFO L514 BasicCegarLoop]: 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] [2021-12-18 02:17:40,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 02:17:40,444 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:17:40,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:17:40,444 INFO L85 PathProgramCache]: Analyzing trace with hash 2122604530, now seen corresponding path program 1 times [2021-12-18 02:17:40,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:17:40,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723888994] [2021-12-18 02:17:40,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:17:40,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:17:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:17:40,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:17:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:17:40,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 02:17:40,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:17:40,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723888994] [2021-12-18 02:17:40,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723888994] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:17:40,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:17:40,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 02:17:40,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069924408] [2021-12-18 02:17:40,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:17:40,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 02:17:40,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:17:40,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 02:17:40,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 02:17:40,909 INFO L87 Difference]: Start difference. First operand 53900 states and 87400 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 02:17:42,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:17:43,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:17:53,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:17:57,592 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:18:01,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:18:02,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:18:05,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:18:12,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:18:12,711 INFO L93 Difference]: Finished difference Result 55578 states and 90601 transitions. [2021-12-18 02:18:12,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 02:18:12,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-12-18 02:18:12,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:18:12,974 INFO L225 Difference]: With dead ends: 55578 [2021-12-18 02:18:12,974 INFO L226 Difference]: Without dead ends: 55562 [2021-12-18 02:18:13,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 02:18:13,016 INFO L933 BasicCegarLoop]: 3292 mSDtfsCounter, 5086 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 2794 mSolverCounterSat, 2749 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5526 SdHoareTripleChecker+Valid, 3312 SdHoareTripleChecker+Invalid, 5547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2749 IncrementalHoareTripleChecker+Valid, 2794 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.1s IncrementalHoareTripleChecker+Time [2021-12-18 02:18:13,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5526 Valid, 3312 Invalid, 5547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2749 Valid, 2794 Invalid, 4 Unknown, 0 Unchecked, 29.1s Time] [2021-12-18 02:18:13,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55562 states. [2021-12-18 02:18:16,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55562 to 53886. [2021-12-18 02:18:16,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53886 states, 33231 states have (on average 1.232734494899341) internal successors, (40965), 34985 states have internal predecessors, (40965), 15796 states have call successors, (15796), 3956 states have call predecessors, (15796), 4858 states have return successors, (30623), 16018 states have call predecessors, (30623), 15699 states have call successors, (30623) [2021-12-18 02:18:16,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53886 states to 53886 states and 87384 transitions. [2021-12-18 02:18:16,600 INFO L78 Accepts]: Start accepts. Automaton has 53886 states and 87384 transitions. Word has length 23 [2021-12-18 02:18:16,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:18:16,601 INFO L470 AbstractCegarLoop]: Abstraction has 53886 states and 87384 transitions. [2021-12-18 02:18:16,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 02:18:16,601 INFO L276 IsEmpty]: Start isEmpty. Operand 53886 states and 87384 transitions. [2021-12-18 02:18:16,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-18 02:18:16,608 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:18:16,609 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 02:18:16,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 02:18:16,609 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:18:16,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:18:16,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1157599878, now seen corresponding path program 1 times [2021-12-18 02:18:16,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:18:16,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587773053] [2021-12-18 02:18:16,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:18:16,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:18:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:18:17,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:18:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:18:17,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 02:18:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:18:17,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 02:18:17,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:18:17,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 02:18:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:18:17,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 02:18:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:18:17,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 02:18:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:18:17,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 02:18:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:18:17,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 02:18:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:18:17,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-18 02:18:17,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:18:17,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 02:18:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:18:17,528 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-18 02:18:17,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:18:17,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587773053] [2021-12-18 02:18:17,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587773053] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:18:17,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:18:17,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 02:18:17,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693152370] [2021-12-18 02:18:17,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:18:17,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 02:18:17,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:18:17,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 02:18:17,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 02:18:17,531 INFO L87 Difference]: Start difference. First operand 53886 states and 87384 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-18 02:18:19,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:18:20,826 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:18:35,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:18:49,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:18:51,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:18:56,525 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:18:58,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:19:00,579 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:19:02,623 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:19:05,480 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:19:06,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:19:18,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:19:18,902 INFO L93 Difference]: Finished difference Result 115862 states and 208406 transitions. [2021-12-18 02:19:18,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 02:19:18,903 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 94 [2021-12-18 02:19:18,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:19:19,576 INFO L225 Difference]: With dead ends: 115862 [2021-12-18 02:19:19,576 INFO L226 Difference]: Without dead ends: 61982 [2021-12-18 02:19:19,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-18 02:19:19,903 INFO L933 BasicCegarLoop]: 3590 mSDtfsCounter, 2716 mSDsluCounter, 2713 mSDsCounter, 0 mSdLazyCounter, 6796 mSolverCounterSat, 2887 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2972 SdHoareTripleChecker+Valid, 6303 SdHoareTripleChecker+Invalid, 9689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2887 IncrementalHoareTripleChecker+Valid, 6796 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.1s IncrementalHoareTripleChecker+Time [2021-12-18 02:19:19,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2972 Valid, 6303 Invalid, 9689 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2887 Valid, 6796 Invalid, 6 Unknown, 0 Unchecked, 56.1s Time] [2021-12-18 02:19:19,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61982 states. [2021-12-18 02:19:23,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61982 to 53902. [2021-12-18 02:19:23,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53902 states, 33247 states have (on average 1.2326224922549402) internal successors, (40981), 35001 states have internal predecessors, (40981), 15796 states have call successors, (15796), 3956 states have call predecessors, (15796), 4858 states have return successors, (30623), 16018 states have call predecessors, (30623), 15699 states have call successors, (30623) [2021-12-18 02:19:23,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53902 states to 53902 states and 87400 transitions. [2021-12-18 02:19:23,690 INFO L78 Accepts]: Start accepts. Automaton has 53902 states and 87400 transitions. Word has length 94 [2021-12-18 02:19:23,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:19:23,691 INFO L470 AbstractCegarLoop]: Abstraction has 53902 states and 87400 transitions. [2021-12-18 02:19:23,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-18 02:19:23,691 INFO L276 IsEmpty]: Start isEmpty. Operand 53902 states and 87400 transitions. [2021-12-18 02:19:23,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-18 02:19:23,694 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:19:23,695 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-18 02:19:23,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-18 02:19:23,695 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:19:23,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:19:23,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1085117948, now seen corresponding path program 1 times [2021-12-18 02:19:23,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:19:23,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107569670] [2021-12-18 02:19:23,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:19:23,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:19:24,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:19:24,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:19:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:19:24,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 02:19:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:19:24,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 02:19:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:19:24,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 02:19:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:19:24,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 02:19:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:19:24,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 02:19:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:19:24,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 02:19:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:19:24,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 02:19:24,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:19:24,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-18 02:19:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:19:24,521 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-18 02:19:24,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:19:24,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107569670] [2021-12-18 02:19:24,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107569670] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:19:24,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:19:24,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 02:19:24,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046875039] [2021-12-18 02:19:24,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:19:24,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 02:19:24,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:19:24,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 02:19:24,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 02:19:24,524 INFO L87 Difference]: Start difference. First operand 53902 states and 87400 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 02:19:26,115 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:19:41,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:19:43,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:19:52,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:19:59,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:20:02,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:20:04,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:20:07,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:20:17,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:20:17,187 INFO L93 Difference]: Finished difference Result 109538 states and 194888 transitions. [2021-12-18 02:20:17,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 02:20:17,188 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 83 [2021-12-18 02:20:17,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:20:17,546 INFO L225 Difference]: With dead ends: 109538 [2021-12-18 02:20:17,546 INFO L226 Difference]: Without dead ends: 55642 [2021-12-18 02:20:18,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 02:20:18,031 INFO L933 BasicCegarLoop]: 3798 mSDtfsCounter, 1645 mSDsluCounter, 4443 mSDsCounter, 0 mSdLazyCounter, 6578 mSolverCounterSat, 1207 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2083 SdHoareTripleChecker+Valid, 8241 SdHoareTripleChecker+Invalid, 7791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1207 IncrementalHoareTripleChecker+Valid, 6578 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.9s IncrementalHoareTripleChecker+Time [2021-12-18 02:20:18,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2083 Valid, 8241 Invalid, 7791 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1207 Valid, 6578 Invalid, 6 Unknown, 0 Unchecked, 47.9s Time] [2021-12-18 02:20:18,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55642 states. [2021-12-18 02:20:20,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55642 to 53950. [2021-12-18 02:20:21,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53950 states, 33295 states have (on average 1.2322871301997298) internal successors, (41029), 35049 states have internal predecessors, (41029), 15796 states have call successors, (15796), 3956 states have call predecessors, (15796), 4858 states have return successors, (30623), 16018 states have call predecessors, (30623), 15699 states have call successors, (30623) [2021-12-18 02:20:21,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53950 states to 53950 states and 87448 transitions. [2021-12-18 02:20:21,676 INFO L78 Accepts]: Start accepts. Automaton has 53950 states and 87448 transitions. Word has length 83 [2021-12-18 02:20:21,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:20:21,677 INFO L470 AbstractCegarLoop]: Abstraction has 53950 states and 87448 transitions. [2021-12-18 02:20:21,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 02:20:21,677 INFO L276 IsEmpty]: Start isEmpty. Operand 53950 states and 87448 transitions. [2021-12-18 02:20:21,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-18 02:20:21,680 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:20:21,680 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-18 02:20:21,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-18 02:20:21,680 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:20:21,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:20:21,681 INFO L85 PathProgramCache]: Analyzing trace with hash -943468162, now seen corresponding path program 1 times [2021-12-18 02:20:21,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:20:21,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495457729] [2021-12-18 02:20:21,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:20:21,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:20:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:20:22,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:20:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:20:22,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 02:20:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:20:22,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 02:20:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:20:22,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 02:20:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:20:22,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 02:20:22,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:20:22,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 02:20:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:20:22,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 02:20:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:20:22,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 02:20:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:20:22,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-18 02:20:22,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:20:22,523 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-18 02:20:22,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:20:22,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495457729] [2021-12-18 02:20:22,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495457729] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:20:22,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:20:22,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 02:20:22,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696328700] [2021-12-18 02:20:22,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:20:22,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 02:20:22,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:20:22,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 02:20:22,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 02:20:22,526 INFO L87 Difference]: Start difference. First operand 53950 states and 87448 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 02:20:23,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:20:25,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:20:37,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:20:46,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:20:56,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:21:02,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:21:04,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:21:08,088 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:21:10,782 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:21:15,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:21:17,274 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:21:20,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:21:22,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15