./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.7.3/main3_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/main3_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 2c422fb06a669ce5225d4a34bb003621d8e04f4e033c19b27cdce4080ea01ff2 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 02:08:26,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 02:08:26,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 02:08:26,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 02:08:26,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 02:08:26,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 02:08:26,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 02:08:26,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 02:08:26,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 02:08:26,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 02:08:26,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 02:08:26,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 02:08:26,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 02:08:26,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 02:08:26,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 02:08:26,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 02:08:26,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 02:08:26,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 02:08:26,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 02:08:26,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 02:08:26,759 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 02:08:26,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 02:08:26,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 02:08:26,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 02:08:26,766 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 02:08:26,766 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 02:08:26,766 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 02:08:26,767 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 02:08:26,767 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 02:08:26,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 02:08:26,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 02:08:26,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 02:08:26,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 02:08:26,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 02:08:26,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 02:08:26,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 02:08:26,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 02:08:26,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 02:08:26,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 02:08:26,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 02:08:26,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 02:08:26,774 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 02:08:26,797 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 02:08:26,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 02:08:26,798 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 02:08:26,798 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 02:08:26,799 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 02:08:26,799 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 02:08:26,800 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 02:08:26,800 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 02:08:26,800 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 02:08:26,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 02:08:26,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 02:08:26,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 02:08:26,801 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 02:08:26,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 02:08:26,801 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 02:08:26,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 02:08:26,801 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 02:08:26,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 02:08:26,802 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 02:08:26,802 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 02:08:26,802 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 02:08:26,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 02:08:26,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 02:08:26,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 02:08:26,803 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 02:08:26,803 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 02:08:26,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 02:08:26,804 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 02:08:26,804 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 02:08:26,804 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 02:08:26,804 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 02:08:26,804 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c422fb06a669ce5225d4a34bb003621d8e04f4e033c19b27cdce4080ea01ff2 [2021-12-18 02:08:26,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 02:08:27,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 02:08:27,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 02:08:27,016 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 02:08:27,016 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 02:08:27,017 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.7.3/main3_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i [2021-12-18 02:08:27,081 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/539e185e1/8b1780e6cf9a491eae6d258352223ab4/FLAG70d2d8cdd [2021-12-18 02:08:27,895 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 02:08:27,895 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main3_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i [2021-12-18 02:08:27,956 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/539e185e1/8b1780e6cf9a491eae6d258352223ab4/FLAG70d2d8cdd [2021-12-18 02:08:28,092 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/539e185e1/8b1780e6cf9a491eae6d258352223ab4 [2021-12-18 02:08:28,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 02:08:28,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 02:08:28,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 02:08:28,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 02:08:28,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 02:08:28,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:08:28" (1/1) ... [2021-12-18 02:08:28,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5adc0e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:28, skipping insertion in model container [2021-12-18 02:08:28,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:08:28" (1/1) ... [2021-12-18 02:08:28,106 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 02:08:28,262 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 02:08:36,069 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/main3_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i[722028,722041] [2021-12-18 02:08:36,563 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 02:08:36,621 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 02:08:37,161 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/main3_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i[722028,722041] [2021-12-18 02:08:37,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 02:08:37,529 INFO L208 MainTranslator]: Completed translation [2021-12-18 02:08:37,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:37 WrapperNode [2021-12-18 02:08:37,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 02:08:37,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 02:08:37,531 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 02:08:37,531 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 02:08:37,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:37" (1/1) ... [2021-12-18 02:08:37,753 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:37" (1/1) ... [2021-12-18 02:08:37,972 INFO L137 Inliner]: procedures = 1046, calls = 9656, calls flagged for inlining = 360, calls inlined = 206, statements flattened = 9221 [2021-12-18 02:08:37,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 02:08:37,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 02:08:37,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 02:08:37,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 02:08:37,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:37" (1/1) ... [2021-12-18 02:08:37,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:37" (1/1) ... [2021-12-18 02:08:38,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:37" (1/1) ... [2021-12-18 02:08:38,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:37" (1/1) ... [2021-12-18 02:08:38,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:37" (1/1) ... [2021-12-18 02:08:38,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:37" (1/1) ... [2021-12-18 02:08:38,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:37" (1/1) ... [2021-12-18 02:08:38,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 02:08:38,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 02:08:38,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 02:08:38,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 02:08:38,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:37" (1/1) ... [2021-12-18 02:08:38,417 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 02:08:38,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 02:08:38,436 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 02:08:38,454 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 02:08:38,469 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dummy_query_bo_prepare [2021-12-18 02:08:38,470 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dummy_query_bo_prepare [2021-12-18 02:08:38,470 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_framebuffer_dmabuf_destroy [2021-12-18 02:08:38,470 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_framebuffer_dmabuf_destroy [2021-12-18 02:08:38,470 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_init [2021-12-18 02:08:38,470 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_init [2021-12-18 02:08:38,470 INFO L130 BoogieDeclarations]: Found specification of procedure idr_destroy [2021-12-18 02:08:38,470 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_destroy [2021-12-18 02:08:38,470 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_obj_init [2021-12-18 02:08:38,471 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_obj_init [2021-12-18 02:08:38,471 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2021-12-18 02:08:38,471 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2021-12-18 02:08:38,471 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_round_pot [2021-12-18 02:08:38,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_round_pot [2021-12-18 02:08:38,471 INFO L130 BoogieDeclarations]: Found specification of procedure drm_master_get [2021-12-18 02:08:38,471 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_master_get [2021-12-18 02:08:38,471 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-18 02:08:38,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-18 02:08:38,472 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_crtc_set_config [2021-12-18 02:08:38,472 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_crtc_set_config [2021-12-18 02:08:38,472 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_eu_backoff_reservation [2021-12-18 02:08:38,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_eu_backoff_reservation [2021-12-18 02:08:38,472 INFO L130 BoogieDeclarations]: Found specification of procedure drm_mtrr_del [2021-12-18 02:08:38,472 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_mtrr_del [2021-12-18 02:08:38,472 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_move_buffer [2021-12-18 02:08:38,472 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_move_buffer [2021-12-18 02:08:38,473 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_firstopen [2021-12-18 02:08:38,473 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_firstopen [2021-12-18 02:08:38,473 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_lastclose [2021-12-18 02:08:38,473 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_lastclose [2021-12-18 02:08:38,473 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_pause_all [2021-12-18 02:08:38,473 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_pause_all [2021-12-18 02:08:38,473 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_framebuffer_surface_destroy [2021-12-18 02:08:38,473 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_framebuffer_surface_destroy [2021-12-18 02:08:38,473 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_destroy [2021-12-18 02:08:38,474 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_destroy [2021-12-18 02:08:38,474 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-18 02:08:38,474 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-18 02:08:38,474 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-18 02:08:38,474 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 02:08:38,474 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 02:08:38,474 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-18 02:08:38,475 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-18 02:08:38,475 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_unreserve [2021-12-18 02:08:38,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_unreserve [2021-12-18 02:08:38,475 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 02:08:38,475 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 02:08:38,475 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kmap [2021-12-18 02:08:38,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kmap [2021-12-18 02:08:38,476 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 02:08:38,476 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 02:08:38,476 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_backing_free [2021-12-18 02:08:38,476 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_backing_free [2021-12-18 02:08:38,476 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_to_vram_or_gmr [2021-12-18 02:08:38,476 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_to_vram_or_gmr [2021-12-18 02:08:38,476 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kunmap [2021-12-18 02:08:38,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kunmap [2021-12-18 02:08:38,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2021-12-18 02:08:38,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2021-12-18 02:08:38,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 02:08:38,478 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_commit_list [2021-12-18 02:08:38,478 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_commit_list [2021-12-18 02:08:38,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_hw_mutex [2021-12-18 02:08:38,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_hw_mutex [2021-12-18 02:08:38,478 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_emit_dummy_query [2021-12-18 02:08:38,478 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_emit_dummy_query [2021-12-18 02:08:38,479 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_hw_context_destroy [2021-12-18 02:08:38,479 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_hw_context_destroy [2021-12-18 02:08:38,479 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_del_active [2021-12-18 02:08:38,479 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_del_active [2021-12-18 02:08:38,479 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_mem_global_alloc [2021-12-18 02:08:38,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_mem_global_alloc [2021-12-18 02:08:38,480 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ttm_destroy [2021-12-18 02:08:38,480 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ttm_destroy [2021-12-18 02:08:38,480 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-18 02:08:38,480 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-18 02:08:38,480 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_resource_release [2021-12-18 02:08:38,480 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_resource_release [2021-12-18 02:08:38,480 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_base_object_init [2021-12-18 02:08:38,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_base_object_init [2021-12-18 02:08:38,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 02:08:38,481 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_vt_unlock [2021-12-18 02:08:38,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_vt_unlock [2021-12-18 02:08:38,481 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_seqno_waiter_add [2021-12-18 02:08:38,481 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_seqno_waiter_add [2021-12-18 02:08:38,481 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_pm_complete [2021-12-18 02:08:38,481 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_pm_complete [2021-12-18 02:08:38,481 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_crtc_destroy [2021-12-18 02:08:38,482 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_crtc_destroy [2021-12-18 02:08:38,482 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-18 02:08:38,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-18 02:08:38,482 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dma_buffer [2021-12-18 02:08:38,482 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dma_buffer [2021-12-18 02:08:38,482 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_evict_mm [2021-12-18 02:08:38,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_evict_mm [2021-12-18 02:08:38,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 02:08:38,483 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_cursor_update_image [2021-12-18 02:08:38,483 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_cursor_update_image [2021-12-18 02:08:38,483 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_display_unit_cleanup [2021-12-18 02:08:38,484 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_display_unit_cleanup [2021-12-18 02:08:38,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 02:08:38,484 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 02:08:38,484 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_destroy [2021-12-18 02:08:38,484 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_destroy [2021-12-18 02:08:38,484 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_user_context_base_release [2021-12-18 02:08:38,485 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_user_context_base_release [2021-12-18 02:08:38,485 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_seqno_passed [2021-12-18 02:08:38,485 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_seqno_passed [2021-12-18 02:08:38,485 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-18 02:08:38,485 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-18 02:08:38,485 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_have_3d [2021-12-18 02:08:38,485 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_have_3d [2021-12-18 02:08:38,486 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_have_pitchlock [2021-12-18 02:08:38,486 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_have_pitchlock [2021-12-18 02:08:38,486 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-18 02:08:38,486 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-18 02:08:38,486 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_stream_destroy [2021-12-18 02:08:38,487 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_stream_destroy [2021-12-18 02:08:38,487 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 02:08:38,489 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 02:08:38,489 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_write [2021-12-18 02:08:38,489 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_write [2021-12-18 02:08:38,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex [2021-12-18 02:08:38,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex [2021-12-18 02:08:38,490 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_wait [2021-12-18 02:08:38,490 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_wait [2021-12-18 02:08:38,491 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_kms_close [2021-12-18 02:08:38,491 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_kms_close [2021-12-18 02:08:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-18 02:08:38,495 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-18 02:08:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 02:08:38,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 02:08:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_kms_write_svga [2021-12-18 02:08:38,495 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_kms_write_svga [2021-12-18 02:08:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_release_mutex [2021-12-18 02:08:38,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_release_mutex [2021-12-18 02:08:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_init [2021-12-18 02:08:38,496 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_init [2021-12-18 02:08:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fallback_wait [2021-12-18 02:08:38,496 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fallback_wait [2021-12-18 02:08:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 02:08:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_obj_reference [2021-12-18 02:08:38,496 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_obj_reference [2021-12-18 02:08:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_release [2021-12-18 02:08:38,496 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_release [2021-12-18 02:08:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_hw_surface_destroy [2021-12-18 02:08:38,497 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_hw_surface_destroy [2021-12-18 02:08:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-18 02:08:38,497 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-18 02:08:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-12-18 02:08:38,497 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-12-18 02:08:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure drm_mode_connector_attach_encoder [2021-12-18 02:08:38,497 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_mode_connector_attach_encoder [2021-12-18 02:08:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_reserve [2021-12-18 02:08:38,497 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_reserve [2021-12-18 02:08:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-18 02:08:38,498 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-18 02:08:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fb_off [2021-12-18 02:08:38,498 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fb_off [2021-12-18 02:08:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 02:08:38,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 02:08:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 02:08:38,498 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 02:08:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure drm_mode_crtc_set_gamma_size [2021-12-18 02:08:38,498 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_mode_crtc_set_gamma_size [2021-12-18 02:08:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_write_lock [2021-12-18 02:08:38,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_write_lock [2021-12-18 02:08:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_3d_resource_dec [2021-12-18 02:08:38,499 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_3d_resource_dec [2021-12-18 02:08:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure drm_connector_attach_property [2021-12-18 02:08:38,499 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_connector_attach_property [2021-12-18 02:08:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-18 02:08:38,499 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-18 02:08:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_device_release [2021-12-18 02:08:38,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_device_release [2021-12-18 02:08:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 02:08:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-18 02:08:38,500 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-18 02:08:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_release [2021-12-18 02:08:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 02:08:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2021-12-18 02:08:38,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2021-12-18 02:08:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-12-18 02:08:38,500 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-12-18 02:08:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ttm_global_release [2021-12-18 02:08:38,501 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ttm_global_release [2021-12-18 02:08:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-18 02:08:38,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-18 02:08:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-18 02:08:38,501 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-18 02:08:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-18 02:08:38,501 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-18 02:08:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_add_active [2021-12-18 02:08:38,501 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_add_active [2021-12-18 02:08:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fpriv [2021-12-18 02:08:38,501 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fpriv [2021-12-18 02:08:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-12-18 02:08:38,502 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-12-18 02:08:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_eu_reserve_buffers [2021-12-18 02:08:38,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_eu_reserve_buffers [2021-12-18 02:08:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_kmap_obj_virtual [2021-12-18 02:08:38,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_kmap_obj_virtual [2021-12-18 02:08:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_to_start_of_vram [2021-12-18 02:08:38,502 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_to_start_of_vram [2021-12-18 02:08:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-18 02:08:38,502 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-18 02:08:38,503 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fb_set_par [2021-12-18 02:08:38,503 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fb_set_par [2021-12-18 02:08:38,503 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_pool_populate [2021-12-18 02:08:38,503 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fb_dirty_mark [2021-12-18 02:08:38,503 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fb_dirty_mark [2021-12-18 02:08:38,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cmdbuf_mutex [2021-12-18 02:08:38,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cmdbuf_mutex [2021-12-18 02:08:38,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cmdbuf_mutex [2021-12-18 02:08:38,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cmdbuf_mutex [2021-12-18 02:08:38,503 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_crtc_destroy [2021-12-18 02:08:38,504 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_crtc_destroy [2021-12-18 02:08:38,504 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_clean_mm [2021-12-18 02:08:38,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_clean_mm [2021-12-18 02:08:38,504 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_send_stop [2021-12-18 02:08:38,504 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_send_stop [2021-12-18 02:08:38,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 02:08:38,504 INFO L130 BoogieDeclarations]: Found specification of procedure drm_vblank_cleanup [2021-12-18 02:08:38,504 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_vblank_cleanup [2021-12-18 02:08:38,504 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_du_connector_detect [2021-12-18 02:08:38,504 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_du_connector_detect [2021-12-18 02:08:38,504 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-18 02:08:38,505 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-18 02:08:38,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 02:08:38,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 02:08:38,505 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_unref [2021-12-18 02:08:38,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_unref [2021-12-18 02:08:38,505 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_create [2021-12-18 02:08:38,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_create [2021-12-18 02:08:38,505 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_resource_unreference [2021-12-18 02:08:38,505 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_resource_unreference [2021-12-18 02:08:38,505 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2021-12-18 02:08:38,506 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2021-12-18 02:08:38,506 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_bo_get_guest_ptr [2021-12-18 02:08:38,506 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_bo_get_guest_ptr [2021-12-18 02:08:38,506 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_to_placement [2021-12-18 02:08:38,506 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_to_placement [2021-12-18 02:08:38,506 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_kms_save_vga [2021-12-18 02:08:38,506 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_kms_save_vga [2021-12-18 02:08:38,507 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-18 02:08:38,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-18 02:08:38,507 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fences_update [2021-12-18 02:08:38,507 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fences_update [2021-12-18 02:08:38,507 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sync_obj_unref [2021-12-18 02:08:38,508 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sync_obj_unref [2021-12-18 02:08:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_crtc_set_config [2021-12-18 02:08:38,508 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_crtc_set_config [2021-12-18 02:08:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-12-18 02:08:38,508 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-12-18 02:08:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-18 02:08:38,508 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-18 02:08:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2021-12-18 02:08:38,508 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2021-12-18 02:08:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_is_full [2021-12-18 02:08:38,508 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_is_full [2021-12-18 02:08:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_send_put [2021-12-18 02:08:38,509 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_send_put [2021-12-18 02:08:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_marker_pull [2021-12-18 02:08:38,509 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_marker_pull [2021-12-18 02:08:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure fb_deferred_io_cleanup [2021-12-18 02:08:38,509 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_deferred_io_cleanup [2021-12-18 02:08:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-18 02:08:38,509 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-18 02:08:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_ref [2021-12-18 02:08:38,509 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_ref [2021-12-18 02:08:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_update_seqno [2021-12-18 02:08:38,510 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_update_seqno [2021-12-18 02:08:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_fb_surf_mutex [2021-12-18 02:08:38,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_fb_surf_mutex [2021-12-18 02:08:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-18 02:08:38,510 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-18 02:08:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure getrawmonotonic [2021-12-18 02:08:38,510 INFO L138 BoogieDeclarations]: Found implementation of procedure getrawmonotonic [2021-12-18 02:08:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fences_perform_actions [2021-12-18 02:08:38,510 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fences_perform_actions [2021-12-18 02:08:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_encoder_destroy [2021-12-18 02:08:38,511 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_encoder_destroy [2021-12-18 02:08:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure fill_flush [2021-12-18 02:08:38,511 INFO L138 BoogieDeclarations]: Found implementation of procedure fill_flush [2021-12-18 02:08:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock [2021-12-18 02:08:38,511 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock [2021-12-18 02:08:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 02:08:38,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 02:08:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_unreference [2021-12-18 02:08:38,511 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_unreference [2021-12-18 02:08:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_surface_unreference [2021-12-18 02:08:38,512 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_surface_unreference [2021-12-18 02:08:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-12-18 02:08:38,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-12-18 02:08:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_eu_fence_buffer_objects [2021-12-18 02:08:38,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_eu_fence_buffer_objects [2021-12-18 02:08:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_fifo_mutex [2021-12-18 02:08:38,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_fifo_mutex [2021-12-18 02:08:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 02:08:38,512 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 02:08:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_obj_wait [2021-12-18 02:08:38,513 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_obj_wait [2021-12-18 02:08:38,513 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_pm_prepare [2021-12-18 02:08:38,513 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_pm_prepare [2021-12-18 02:08:38,513 INFO L130 BoogieDeclarations]: Found specification of procedure drm_master_put [2021-12-18 02:08:38,513 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_master_put [2021-12-18 02:08:38,513 INFO L130 BoogieDeclarations]: Found specification of procedure idr_init [2021-12-18 02:08:38,513 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_init [2021-12-18 02:08:38,513 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-18 02:08:38,513 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-18 02:08:38,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_goal_irq_mutex [2021-12-18 02:08:38,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_goal_irq_mutex [2021-12-18 02:08:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_bo_pin [2021-12-18 02:08:38,514 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_bo_pin [2021-12-18 02:08:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 02:08:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-18 02:08:38,514 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-18 02:08:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_init [2021-12-18 02:08:38,514 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_init [2021-12-18 02:08:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure timespec_sub [2021-12-18 02:08:38,514 INFO L138 BoogieDeclarations]: Found implementation of procedure timespec_sub [2021-12-18 02:08:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_close [2021-12-18 02:08:38,514 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_close [2021-12-18 02:08:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 02:08:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_pm_resume [2021-12-18 02:08:38,515 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_pm_resume [2021-12-18 02:08:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-18 02:08:38,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-18 02:08:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_unref [2021-12-18 02:08:38,515 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_unref [2021-12-18 02:08:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 02:08:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fb_close [2021-12-18 02:08:38,515 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fb_close [2021-12-18 02:08:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ttm_unbind [2021-12-18 02:08:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ttm_unbind [2021-12-18 02:08:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-12-18 02:08:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-12-18 02:08:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_pm_suspend [2021-12-18 02:08:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_pm_suspend [2021-12-18 02:08:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 02:08:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 02:08:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_unpin [2021-12-18 02:08:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_unpin [2021-12-18 02:08:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_kms_restore_vga [2021-12-18 02:08:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_kms_restore_vga [2021-12-18 02:08:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_request_device [2021-12-18 02:08:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_request_device [2021-12-18 02:08:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_obj_unreference [2021-12-18 02:08:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_obj_unreference [2021-12-18 02:08:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-12-18 02:08:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-12-18 02:08:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-18 02:08:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-18 02:08:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex [2021-12-18 02:08:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex [2021-12-18 02:08:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_unref [2021-12-18 02:08:38,518 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_unref [2021-12-18 02:08:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_fifo_down [2021-12-18 02:08:38,518 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_fifo_down [2021-12-18 02:08:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_connector_destroy [2021-12-18 02:08:38,518 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_connector_destroy [2021-12-18 02:08:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_read [2021-12-18 02:08:38,518 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_read [2021-12-18 02:08:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2021-12-18 02:08:38,518 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2021-12-18 02:08:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 02:08:38,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 02:08:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-18 02:08:38,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-18 02:08:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_vt_lock [2021-12-18 02:08:38,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_vt_lock [2021-12-18 02:08:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_obj_destroy_locked [2021-12-18 02:08:38,519 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_obj_destroy_locked [2021-12-18 02:08:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_fifo_destroy [2021-12-18 02:08:38,519 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_fifo_destroy [2021-12-18 02:08:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_pool_unpopulate [2021-12-18 02:08:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_seqno_waiter_remove [2021-12-18 02:08:38,520 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_seqno_waiter_remove [2021-12-18 02:08:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_user_stream_base_release [2021-12-18 02:08:38,520 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_user_stream_base_release [2021-12-18 02:08:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_release_device [2021-12-18 02:08:38,520 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_release_device [2021-12-18 02:08:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_validate [2021-12-18 02:08:38,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_validate [2021-12-18 02:08:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_driver_unload [2021-12-18 02:08:38,520 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_driver_unload [2021-12-18 02:08:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-12-18 02:08:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-12-18 02:08:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_fb_surf_mutex [2021-12-18 02:08:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_fb_surf_mutex [2021-12-18 02:08:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-18 02:08:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-18 02:08:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-12-18 02:08:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-12-18 02:08:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_mem_global_free [2021-12-18 02:08:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_mem_global_free [2021-12-18 02:08:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_write_unlock [2021-12-18 02:08:38,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_write_unlock [2021-12-18 02:08:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure drm_connector_init [2021-12-18 02:08:38,522 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_connector_init [2021-12-18 02:08:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-18 02:08:38,522 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-18 02:08:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 02:08:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure drm_encoder_init [2021-12-18 02:08:38,522 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_encoder_init [2021-12-18 02:08:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_surface_destroy_encode [2021-12-18 02:08:38,522 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_surface_destroy_encode [2021-12-18 02:08:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_work_func [2021-12-18 02:08:38,523 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_work_func [2021-12-18 02:08:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_lock_set_kill [2021-12-18 02:08:38,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_lock_set_kill [2021-12-18 02:08:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_update_stream [2021-12-18 02:08:38,523 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_update_stream [2021-12-18 02:08:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_reference [2021-12-18 02:08:38,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_reference [2021-12-18 02:08:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2021-12-18 02:08:38,523 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2021-12-18 02:08:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_connector_destroy [2021-12-18 02:08:38,524 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_connector_destroy [2021-12-18 02:08:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_encoder_destroy [2021-12-18 02:08:38,524 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_encoder_destroy [2021-12-18 02:08:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_cursor_update_dmabuf [2021-12-18 02:08:38,524 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_cursor_update_dmabuf [2021-12-18 02:08:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-18 02:08:38,524 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-18 02:08:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 02:08:38,524 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 02:08:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_framebuffer_dmabuf_unpin [2021-12-18 02:08:38,524 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_framebuffer_dmabuf_unpin [2021-12-18 02:08:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_user_fence_base_release [2021-12-18 02:08:38,525 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_user_fence_base_release [2021-12-18 02:08:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_master_init [2021-12-18 02:08:38,525 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_master_init [2021-12-18 02:08:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~uint32_t~0~TO~~bool~0 [2021-12-18 02:08:38,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~uint32_t~0~TO~~bool~0 [2021-12-18 02:08:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-18 02:08:38,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-18 02:08:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_release_mutex [2021-12-18 02:08:38,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_release_mutex [2021-12-18 02:08:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure drm_crtc_init [2021-12-18 02:08:38,526 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_crtc_init [2021-12-18 02:08:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_3d_resource_inc [2021-12-18 02:08:38,526 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_3d_resource_inc [2021-12-18 02:08:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_stop [2021-12-18 02:08:38,526 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_stop [2021-12-18 02:08:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_priv [2021-12-18 02:08:38,526 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_priv [2021-12-18 02:08:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 02:08:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_goal_irq_mutex [2021-12-18 02:08:38,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_goal_irq_mutex [2021-12-18 02:08:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_commit [2021-12-18 02:08:38,527 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_commit [2021-12-18 02:08:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_init [2021-12-18 02:08:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-12-18 02:08:38,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-12-18 02:08:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_hw_mutex [2021-12-18 02:08:38,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_hw_mutex [2021-12-18 02:08:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_event_fence_action_cleanup [2021-12-18 02:08:38,527 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_event_fence_action_cleanup [2021-12-18 02:08:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_execbuf_unpin_panic [2021-12-18 02:08:38,527 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_execbuf_unpin_panic [2021-12-18 02:08:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_backing_alloc [2021-12-18 02:08:38,528 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_backing_alloc [2021-12-18 02:08:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_init_mm [2021-12-18 02:08:38,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_init_mm [2021-12-18 02:08:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_obj_signaled [2021-12-18 02:08:38,528 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_obj_signaled [2021-12-18 02:08:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_resume_all [2021-12-18 02:08:38,528 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_resume_all [2021-12-18 02:08:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_reserve [2021-12-18 02:08:38,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_reserve [2021-12-18 02:08:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_idle [2021-12-18 02:08:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_idle [2021-12-18 02:08:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_reference [2021-12-18 02:08:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_reference [2021-12-18 02:08:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 02:08:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 02:08:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_base_object_unref [2021-12-18 02:08:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_base_object_unref [2021-12-18 02:08:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_master [2021-12-18 02:08:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_master [2021-12-18 02:08:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_user_fence_create [2021-12-18 02:08:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_user_fence_create [2021-12-18 02:08:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_to_vram [2021-12-18 02:08:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_to_vram [2021-12-18 02:08:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_remove [2021-12-18 02:08:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_remove [2021-12-18 02:08:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_surface_destroy_size [2021-12-18 02:08:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_surface_destroy_size [2021-12-18 02:08:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure drm_framebuffer_cleanup [2021-12-18 02:08:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_framebuffer_cleanup [2021-12-18 02:08:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_framebuffer_dmabuf_pin [2021-12-18 02:08:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_framebuffer_dmabuf_pin [2021-12-18 02:08:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2021-12-18 02:08:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2021-12-18 02:08:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock [2021-12-18 02:08:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock [2021-12-18 02:08:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_user_surface_base_release [2021-12-18 02:08:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_user_surface_base_release [2021-12-18 02:08:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_mem_glob [2021-12-18 02:08:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_mem_glob [2021-12-18 02:08:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_execbuf_fence_commands [2021-12-18 02:08:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_execbuf_fence_commands [2021-12-18 02:08:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_ping_host [2021-12-18 02:08:38,532 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_ping_host [2021-12-18 02:08:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_object_device_release [2021-12-18 02:08:38,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_object_device_release [2021-12-18 02:08:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_release [2021-12-18 02:08:38,532 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_release [2021-12-18 02:08:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure drm_vblank_init [2021-12-18 02:08:38,532 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_vblank_init [2021-12-18 02:08:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2021-12-18 02:08:38,532 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2021-12-18 02:08:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_send_fence [2021-12-18 02:08:38,533 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_send_fence [2021-12-18 02:08:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure fill_escape [2021-12-18 02:08:38,533 INFO L138 BoogieDeclarations]: Found implementation of procedure fill_escape [2021-12-18 02:08:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_manager_takedown [2021-12-18 02:08:38,533 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_manager_takedown [2021-12-18 02:08:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 02:08:38,533 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 02:08:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_execbuf_release_pinned_bo [2021-12-18 02:08:38,533 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_execbuf_release_pinned_bo [2021-12-18 02:08:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-12-18 02:08:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-12-18 02:08:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 02:08:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-18 02:08:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-18 02:08:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure drm_mode_create_dirty_info_property [2021-12-18 02:08:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_mode_create_dirty_info_property [2021-12-18 02:08:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_timespec [2021-12-18 02:08:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_timespec [2021-12-18 02:08:39,690 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 02:08:39,695 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 02:09:28,128 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 02:09:28,145 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 02:09:28,145 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-18 02:09:28,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:09:28 BoogieIcfgContainer [2021-12-18 02:09:28,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 02:09:28,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 02:09:28,150 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 02:09:28,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 02:09:28,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 02:08:28" (1/3) ... [2021-12-18 02:09:28,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6db9f85e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:09:28, skipping insertion in model container [2021-12-18 02:09:28,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:08:37" (2/3) ... [2021-12-18 02:09:28,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6db9f85e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:09:28, skipping insertion in model container [2021-12-18 02:09:28,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:09:28" (3/3) ... [2021-12-18 02:09:28,157 INFO L111 eAbstractionObserver]: Analyzing ICFG main3_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i [2021-12-18 02:09:28,161 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 02:09:28,161 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 02:09:28,206 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 02:09:28,213 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 02:09:28,213 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 02:09:28,281 INFO L276 IsEmpty]: Start isEmpty. Operand has 3944 states, 2433 states have (on average 1.2675709001233046) internal successors, (3084), 2566 states have internal predecessors, (3084), 1254 states have call successors, (1254), 255 states have call predecessors, (1254), 255 states have return successors, (1254), 1227 states have call predecessors, (1254), 1254 states have call successors, (1254) [2021-12-18 02:09:28,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-18 02:09:28,285 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:09:28,286 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 02:09:28,286 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:09:28,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:09:28,289 INFO L85 PathProgramCache]: Analyzing trace with hash 101047357, now seen corresponding path program 1 times [2021-12-18 02:09:28,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:09:28,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841874383] [2021-12-18 02:09:28,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:09:28,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:09:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:09:29,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:09:29,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:09:29,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 02:09:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:09:29,201 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 02:09:29,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:09:29,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841874383] [2021-12-18 02:09:29,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841874383] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:09:29,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:09:29,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 02:09:29,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340936574] [2021-12-18 02:09:29,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:09:29,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 02:09:29,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:09:29,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 02:09:29,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 02:09:29,231 INFO L87 Difference]: Start difference. First operand has 3944 states, 2433 states have (on average 1.2675709001233046) internal successors, (3084), 2566 states have internal predecessors, (3084), 1254 states have call successors, (1254), 255 states have call predecessors, (1254), 255 states have return successors, (1254), 1227 states have call predecessors, (1254), 1254 states have call successors, (1254) 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, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-18 02:09:30,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:09:31,812 WARN L534 Checker$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 02:09:42,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:09:50,488 WARN L534 Checker$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 02:09:52,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:09:54,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:09:59,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:10:06,084 WARN L534 Checker$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 02:10:22,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:10:27,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:10:40,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:10:40,395 INFO L93 Difference]: Finished difference Result 11868 states and 17630 transitions. [2021-12-18 02:10:40,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 02:10:40,399 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, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2021-12-18 02:10:40,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:10:40,547 INFO L225 Difference]: With dead ends: 11868 [2021-12-18 02:10:40,547 INFO L226 Difference]: Without dead ends: 7873 [2021-12-18 02:10:40,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 02:10:40,586 INFO L933 BasicCegarLoop]: 5366 mSDtfsCounter, 7963 mSDsluCounter, 1667 mSDsCounter, 0 mSdLazyCounter, 7968 mSolverCounterSat, 4208 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9032 SdHoareTripleChecker+Valid, 7033 SdHoareTripleChecker+Invalid, 12181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4208 IncrementalHoareTripleChecker+Valid, 7968 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.5s IncrementalHoareTripleChecker+Time [2021-12-18 02:10:40,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9032 Valid, 7033 Invalid, 12181 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4208 Valid, 7968 Invalid, 5 Unknown, 0 Unchecked, 69.5s Time] [2021-12-18 02:10:40,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7873 states. [2021-12-18 02:10:40,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7873 to 7328. [2021-12-18 02:10:40,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7328 states, 4499 states have (on average 1.2480551233607469) internal successors, (5615), 4734 states have internal predecessors, (5615), 2289 states have call successors, (2289), 477 states have call predecessors, (2289), 539 states have return successors, (2535), 2262 states have call predecessors, (2535), 2261 states have call successors, (2535) [2021-12-18 02:10:41,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7328 states to 7328 states and 10439 transitions. [2021-12-18 02:10:41,018 INFO L78 Accepts]: Start accepts. Automaton has 7328 states and 10439 transitions. Word has length 19 [2021-12-18 02:10:41,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:10:41,019 INFO L470 AbstractCegarLoop]: Abstraction has 7328 states and 10439 transitions. [2021-12-18 02:10:41,019 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, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-18 02:10:41,020 INFO L276 IsEmpty]: Start isEmpty. Operand 7328 states and 10439 transitions. [2021-12-18 02:10:41,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-18 02:10:41,021 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:10:41,021 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 02:10:41,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 02:10:41,021 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:10:41,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:10:41,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1165707191, now seen corresponding path program 1 times [2021-12-18 02:10:41,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:10:41,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203649489] [2021-12-18 02:10:41,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:10:41,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:10:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:10:41,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:10:41,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:10:41,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 02:10:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:10:41,534 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 02:10:41,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:10:41,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203649489] [2021-12-18 02:10:41,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203649489] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:10:41,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:10:41,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 02:10:41,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805104628] [2021-12-18 02:10:41,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:10:41,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 02:10:41,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:10:41,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 02:10:41,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 02:10:41,539 INFO L87 Difference]: Start difference. First operand 7328 states and 10439 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, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-18 02:10:42,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:10:43,971 WARN L534 Checker$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 02:10:54,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:11:01,586 WARN L534 Checker$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 02:11:03,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:11:05,962 WARN L534 Checker$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 02:11:09,163 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 02:11:17,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:11:17,736 INFO L93 Difference]: Finished difference Result 7860 states and 11279 transitions. [2021-12-18 02:11:17,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 02:11:17,737 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, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2021-12-18 02:11:17,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:11:17,779 INFO L225 Difference]: With dead ends: 7860 [2021-12-18 02:11:17,779 INFO L226 Difference]: Without dead ends: 7857 [2021-12-18 02:11:17,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 02:11:17,785 INFO L933 BasicCegarLoop]: 4301 mSDtfsCounter, 6275 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 3339 mSolverCounterSat, 3179 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6965 SdHoareTripleChecker+Valid, 4891 SdHoareTripleChecker+Invalid, 6523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3179 IncrementalHoareTripleChecker+Valid, 3339 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.3s IncrementalHoareTripleChecker+Time [2021-12-18 02:11:17,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6965 Valid, 4891 Invalid, 6523 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3179 Valid, 3339 Invalid, 5 Unknown, 0 Unchecked, 35.3s Time] [2021-12-18 02:11:17,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7857 states. [2021-12-18 02:11:18,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7857 to 7327. [2021-12-18 02:11:18,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7327 states, 4499 states have (on average 1.2478328517448323) internal successors, (5614), 4733 states have internal predecessors, (5614), 2288 states have call successors, (2288), 477 states have call predecessors, (2288), 539 states have return successors, (2535), 2262 states have call predecessors, (2535), 2261 states have call successors, (2535) [2021-12-18 02:11:18,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7327 states to 7327 states and 10437 transitions. [2021-12-18 02:11:18,128 INFO L78 Accepts]: Start accepts. Automaton has 7327 states and 10437 transitions. Word has length 20 [2021-12-18 02:11:18,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:11:18,128 INFO L470 AbstractCegarLoop]: Abstraction has 7327 states and 10437 transitions. [2021-12-18 02:11:18,129 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, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-18 02:11:18,129 INFO L276 IsEmpty]: Start isEmpty. Operand 7327 states and 10437 transitions. [2021-12-18 02:11:18,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-18 02:11:18,130 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:11:18,130 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 02:11:18,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 02:11:18,130 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:11:18,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:11:18,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1780387648, now seen corresponding path program 1 times [2021-12-18 02:11:18,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:11:18,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964842481] [2021-12-18 02:11:18,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:11:18,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:11:18,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:11:18,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:11:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:11:18,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 02:11:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:11:18,629 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 02:11:18,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:11:18,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964842481] [2021-12-18 02:11:18,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964842481] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:11:18,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:11:18,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 02:11:18,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142283436] [2021-12-18 02:11:18,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:11:18,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 02:11:18,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:11:18,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 02:11:18,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 02:11:18,632 INFO L87 Difference]: Start difference. First operand 7327 states and 10437 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, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-18 02:11:20,163 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 02:11:22,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:11:33,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:11:40,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:11:42,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:11:44,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:11:47,233 WARN L534 Checker$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 02:11:55,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:11:55,158 INFO L93 Difference]: Finished difference Result 7873 states and 11286 transitions. [2021-12-18 02:11:55,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 02:11:55,159 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, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2021-12-18 02:11:55,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:11:55,199 INFO L225 Difference]: With dead ends: 7873 [2021-12-18 02:11:55,200 INFO L226 Difference]: Without dead ends: 7869 [2021-12-18 02:11:55,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 02:11:55,209 INFO L933 BasicCegarLoop]: 4323 mSDtfsCounter, 6260 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 3334 mSolverCounterSat, 3220 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6901 SdHoareTripleChecker+Valid, 4920 SdHoareTripleChecker+Invalid, 6558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3220 IncrementalHoareTripleChecker+Valid, 3334 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.8s IncrementalHoareTripleChecker+Time [2021-12-18 02:11:55,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6901 Valid, 4920 Invalid, 6558 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3220 Valid, 3334 Invalid, 4 Unknown, 0 Unchecked, 35.8s Time] [2021-12-18 02:11:55,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7869 states. [2021-12-18 02:11:55,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7869 to 7337. [2021-12-18 02:11:55,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7337 states, 4507 states have (on average 1.24672731306856) internal successors, (5619), 4739 states have internal predecessors, (5619), 2286 states have call successors, (2286), 481 states have call predecessors, (2286), 543 states have return successors, (2535), 2262 states have call predecessors, (2535), 2261 states have call successors, (2535) [2021-12-18 02:11:55,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7337 states to 7337 states and 10440 transitions. [2021-12-18 02:11:55,554 INFO L78 Accepts]: Start accepts. Automaton has 7337 states and 10440 transitions. Word has length 21 [2021-12-18 02:11:55,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:11:55,554 INFO L470 AbstractCegarLoop]: Abstraction has 7337 states and 10440 transitions. [2021-12-18 02:11:55,554 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, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-18 02:11:55,555 INFO L276 IsEmpty]: Start isEmpty. Operand 7337 states and 10440 transitions. [2021-12-18 02:11:55,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-18 02:11:55,555 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:11:55,555 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 02:11:55,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 02:11:55,556 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:11:55,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:11:55,557 INFO L85 PathProgramCache]: Analyzing trace with hash 639359532, now seen corresponding path program 1 times [2021-12-18 02:11:55,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:11:55,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346131847] [2021-12-18 02:11:55,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:11:55,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:11:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:11:56,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:11:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:11:56,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 02:11:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:11:56,062 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 02:11:56,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:11:56,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346131847] [2021-12-18 02:11:56,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346131847] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:11:56,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:11:56,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 02:11:56,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886501013] [2021-12-18 02:11:56,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:11:56,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 02:11:56,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:11:56,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 02:11:56,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 02:11:56,063 INFO L87 Difference]: Start difference. First operand 7337 states and 10440 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, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-18 02:11:58,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:12:00,183 WARN L534 Checker$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 02:12:09,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:12:22,695 WARN L534 Checker$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 02:12:27,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:12:29,468 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:12:31,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:12:39,868 WARN L534 Checker$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 02:12:43,009 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 02:13:10,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:13:10,477 INFO L93 Difference]: Finished difference Result 22589 states and 34188 transitions. [2021-12-18 02:13:10,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 02:13:10,478 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, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2021-12-18 02:13:10,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:13:10,557 INFO L225 Difference]: With dead ends: 22589 [2021-12-18 02:13:10,557 INFO L226 Difference]: Without dead ends: 15265 [2021-12-18 02:13:10,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 02:13:10,610 INFO L933 BasicCegarLoop]: 5365 mSDtfsCounter, 7972 mSDsluCounter, 2903 mSDsCounter, 0 mSdLazyCounter, 8536 mSolverCounterSat, 4509 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9020 SdHoareTripleChecker+Valid, 8268 SdHoareTripleChecker+Invalid, 13053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4509 IncrementalHoareTripleChecker+Valid, 8536 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.8s IncrementalHoareTripleChecker+Time [2021-12-18 02:13:10,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9020 Valid, 8268 Invalid, 13053 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4509 Valid, 8536 Invalid, 8 Unknown, 0 Unchecked, 72.8s Time] [2021-12-18 02:13:10,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15265 states. [2021-12-18 02:13:11,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15265 to 15156. [2021-12-18 02:13:11,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15156 states, 9315 states have (on average 1.2419753086419754) internal successors, (11569), 9802 states have internal predecessors, (11569), 4645 states have call successors, (4645), 954 states have call predecessors, (4645), 1195 states have return successors, (6387), 4699 states have call predecessors, (6387), 4598 states have call successors, (6387) [2021-12-18 02:13:11,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15156 states to 15156 states and 22601 transitions. [2021-12-18 02:13:11,538 INFO L78 Accepts]: Start accepts. Automaton has 15156 states and 22601 transitions. Word has length 22 [2021-12-18 02:13:11,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:13:11,538 INFO L470 AbstractCegarLoop]: Abstraction has 15156 states and 22601 transitions. [2021-12-18 02:13:11,538 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, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-18 02:13:11,539 INFO L276 IsEmpty]: Start isEmpty. Operand 15156 states and 22601 transitions. [2021-12-18 02:13:11,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-18 02:13:11,540 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:13:11,540 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 02:13:11,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 02:13:11,541 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:13:11,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:13:11,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1657884349, now seen corresponding path program 1 times [2021-12-18 02:13:11,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:13:11,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67116077] [2021-12-18 02:13:11,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:13:11,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:13:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:13:11,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:13:11,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:13:12,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 02:13:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:13:12,039 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 02:13:12,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:13:12,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67116077] [2021-12-18 02:13:12,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67116077] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:13:12,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:13:12,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 02:13:12,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206227116] [2021-12-18 02:13:12,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:13:12,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 02:13:12,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:13:12,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 02:13:12,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 02:13:12,042 INFO L87 Difference]: Start difference. First operand 15156 states and 22601 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, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-18 02:13:13,196 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 02:13:15,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:13:23,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:13:29,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:13:34,524 WARN L534 Checker$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 02:13:36,592 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:13:39,548 WARN L534 Checker$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 02:13:47,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:13:47,742 INFO L93 Difference]: Finished difference Result 15479 states and 22980 transitions. [2021-12-18 02:13:47,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 02:13:47,742 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, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2021-12-18 02:13:47,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:13:47,810 INFO L225 Difference]: With dead ends: 15479 [2021-12-18 02:13:47,810 INFO L226 Difference]: Without dead ends: 15475 [2021-12-18 02:13:47,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 02:13:47,823 INFO L933 BasicCegarLoop]: 4351 mSDtfsCounter, 6247 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 3385 mSolverCounterSat, 3214 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6884 SdHoareTripleChecker+Valid, 4981 SdHoareTripleChecker+Invalid, 6604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3214 IncrementalHoareTripleChecker+Valid, 3385 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.6s IncrementalHoareTripleChecker+Time [2021-12-18 02:13:47,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6884 Valid, 4981 Invalid, 6604 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3214 Valid, 3385 Invalid, 5 Unknown, 0 Unchecked, 34.6s Time] [2021-12-18 02:13:47,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15475 states. [2021-12-18 02:13:48,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15475 to 15386. [2021-12-18 02:13:48,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15386 states, 9475 states have (on average 1.2386279683377308) internal successors, (11736), 9964 states have internal predecessors, (11736), 4659 states have call successors, (4659), 1010 states have call predecessors, (4659), 1251 states have return successors, (6403), 4715 states have call predecessors, (6403), 4614 states have call successors, (6403) [2021-12-18 02:13:48,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15386 states to 15386 states and 22798 transitions. [2021-12-18 02:13:48,730 INFO L78 Accepts]: Start accepts. Automaton has 15386 states and 22798 transitions. Word has length 23 [2021-12-18 02:13:48,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:13:48,731 INFO L470 AbstractCegarLoop]: Abstraction has 15386 states and 22798 transitions. [2021-12-18 02:13:48,731 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, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-18 02:13:48,731 INFO L276 IsEmpty]: Start isEmpty. Operand 15386 states and 22798 transitions. [2021-12-18 02:13:48,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-18 02:13:48,732 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:13:48,732 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, 1] [2021-12-18 02:13:48,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 02:13:48,733 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:13:48,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:13:48,734 INFO L85 PathProgramCache]: Analyzing trace with hash 142004239, now seen corresponding path program 1 times [2021-12-18 02:13:48,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:13:48,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829387117] [2021-12-18 02:13:48,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:13:48,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:13:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:13:49,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:13:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:13:49,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 02:13:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:13:49,183 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 02:13:49,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:13:49,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829387117] [2021-12-18 02:13:49,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829387117] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:13:49,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:13:49,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 02:13:49,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844085420] [2021-12-18 02:13:49,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:13:49,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 02:13:49,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:13:49,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 02:13:49,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 02:13:49,185 INFO L87 Difference]: Start difference. First operand 15386 states and 22798 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, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-18 02:13:50,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:13:52,051 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:14:00,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:14:06,265 WARN L534 Checker$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 02:14:11,412 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:14:13,463 WARN L534 Checker$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 02:14:16,417 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 02:14:25,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:14:25,579 INFO L93 Difference]: Finished difference Result 16241 states and 24157 transitions. [2021-12-18 02:14:25,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 02:14:25,579 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, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2021-12-18 02:14:25,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:14:25,671 INFO L225 Difference]: With dead ends: 16241 [2021-12-18 02:14:25,671 INFO L226 Difference]: Without dead ends: 16237 [2021-12-18 02:14:25,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 02:14:25,685 INFO L933 BasicCegarLoop]: 4460 mSDtfsCounter, 6130 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 3311 mSolverCounterSat, 3339 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6670 SdHoareTripleChecker+Valid, 5303 SdHoareTripleChecker+Invalid, 6655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3339 IncrementalHoareTripleChecker+Valid, 3311 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.3s IncrementalHoareTripleChecker+Time [2021-12-18 02:14:25,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6670 Valid, 5303 Invalid, 6655 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3339 Valid, 3311 Invalid, 5 Unknown, 0 Unchecked, 35.3s Time] [2021-12-18 02:14:25,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16237 states. [2021-12-18 02:14:26,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16237 to 15816. [2021-12-18 02:14:26,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15816 states, 9745 states have (on average 1.2374551051821447) internal successors, (12059), 10240 states have internal predecessors, (12059), 4765 states have call successors, (4765), 1060 states have call predecessors, (4765), 1305 states have return successors, (6575), 4827 states have call predecessors, (6575), 4722 states have call successors, (6575) [2021-12-18 02:14:26,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15816 states to 15816 states and 23399 transitions. [2021-12-18 02:14:26,445 INFO L78 Accepts]: Start accepts. Automaton has 15816 states and 23399 transitions. Word has length 24 [2021-12-18 02:14:26,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:14:26,445 INFO L470 AbstractCegarLoop]: Abstraction has 15816 states and 23399 transitions. [2021-12-18 02:14:26,445 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, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-18 02:14:26,445 INFO L276 IsEmpty]: Start isEmpty. Operand 15816 states and 23399 transitions. [2021-12-18 02:14:26,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-18 02:14:26,446 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:14:26,446 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, 1, 1] [2021-12-18 02:14:26,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 02:14:26,446 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:14:26,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:14:26,447 INFO L85 PathProgramCache]: Analyzing trace with hash 103980486, now seen corresponding path program 1 times [2021-12-18 02:14:26,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:14:26,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25605363] [2021-12-18 02:14:26,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:14:26,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:14:26,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:14:26,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:14:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:14:26,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 02:14:26,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:14:26,964 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 02:14:26,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:14:26,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25605363] [2021-12-18 02:14:26,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25605363] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:14:26,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:14:26,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 02:14:26,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175478503] [2021-12-18 02:14:26,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:14:26,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 02:14:26,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:14:26,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 02:14:26,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 02:14:26,967 INFO L87 Difference]: Start difference. First operand 15816 states and 23399 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, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-18 02:14:29,074 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 02:14:30,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:14:42,112 WARN L534 Checker$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 02:14:49,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:14:51,410 WARN L534 Checker$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 02:14:53,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:14:56,301 WARN L534 Checker$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 02:15:04,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:15:04,872 INFO L93 Difference]: Finished difference Result 16257 states and 24175 transitions. [2021-12-18 02:15:04,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 02:15:04,872 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, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2021-12-18 02:15:04,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:15:04,928 INFO L225 Difference]: With dead ends: 16257 [2021-12-18 02:15:04,929 INFO L226 Difference]: Without dead ends: 16254 [2021-12-18 02:15:04,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 02:15:04,939 INFO L933 BasicCegarLoop]: 4311 mSDtfsCounter, 6248 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 3340 mSolverCounterSat, 3156 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6932 SdHoareTripleChecker+Valid, 4901 SdHoareTripleChecker+Invalid, 6502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3156 IncrementalHoareTripleChecker+Valid, 3340 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.8s IncrementalHoareTripleChecker+Time [2021-12-18 02:15:04,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6932 Valid, 4901 Invalid, 6502 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3156 Valid, 3340 Invalid, 6 Unknown, 0 Unchecked, 36.8s Time] [2021-12-18 02:15:04,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16254 states. [2021-12-18 02:15:05,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16254 to 15815. [2021-12-18 02:15:05,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15815 states, 9745 states have (on average 1.2373524884556182) internal successors, (12058), 10239 states have internal predecessors, (12058), 4764 states have call successors, (4764), 1060 states have call predecessors, (4764), 1305 states have return successors, (6575), 4827 states have call predecessors, (6575), 4722 states have call successors, (6575) [2021-12-18 02:15:05,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15815 states to 15815 states and 23397 transitions. [2021-12-18 02:15:05,620 INFO L78 Accepts]: Start accepts. Automaton has 15815 states and 23397 transitions. Word has length 25 [2021-12-18 02:15:05,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:15:05,620 INFO L470 AbstractCegarLoop]: Abstraction has 15815 states and 23397 transitions. [2021-12-18 02:15:05,620 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, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-18 02:15:05,620 INFO L276 IsEmpty]: Start isEmpty. Operand 15815 states and 23397 transitions. [2021-12-18 02:15:05,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-18 02:15:05,621 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:15:05,621 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, 1, 1, 1] [2021-12-18 02:15:05,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 02:15:05,621 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:15:05,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:15:05,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1074750990, now seen corresponding path program 1 times [2021-12-18 02:15:05,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:15:05,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61157693] [2021-12-18 02:15:05,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:15:05,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:15:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:15:05,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:15:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:15:06,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 02:15:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:15:06,114 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 02:15:06,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:15:06,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61157693] [2021-12-18 02:15:06,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61157693] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:15:06,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:15:06,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 02:15:06,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943356090] [2021-12-18 02:15:06,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:15:06,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 02:15:06,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:15:06,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 02:15:06,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 02:15:06,117 INFO L87 Difference]: Start difference. First operand 15815 states and 23397 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-18 02:15:07,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:15:09,424 WARN L534 Checker$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 02:15:24,542 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:15:38,572 WARN L534 Checker$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 02:15:42,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:15:44,557 WARN L534 Checker$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 02:15:46,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:15:51,362 WARN L534 Checker$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 02:15:59,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:16:17,503 WARN L534 Checker$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 02:16:19,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:16:22,170 WARN L534 Checker$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 02:16:26,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:16:26,597 INFO L93 Difference]: Finished difference Result 46283 states and 74064 transitions. [2021-12-18 02:16:26,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 02:16:26,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2021-12-18 02:16:26,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:16:26,733 INFO L225 Difference]: With dead ends: 46283 [2021-12-18 02:16:26,734 INFO L226 Difference]: Without dead ends: 30481 [2021-12-18 02:16:26,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 02:16:26,847 INFO L933 BasicCegarLoop]: 5251 mSDtfsCounter, 7916 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 7959 mSolverCounterSat, 4290 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8990 SdHoareTripleChecker+Valid, 6974 SdHoareTripleChecker+Invalid, 12259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4290 IncrementalHoareTripleChecker+Valid, 7959 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.8s IncrementalHoareTripleChecker+Time [2021-12-18 02:16:26,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8990 Valid, 6974 Invalid, 12259 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4290 Valid, 7959 Invalid, 10 Unknown, 0 Unchecked, 77.8s Time] [2021-12-18 02:16:26,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30481 states. [2021-12-18 02:16:28,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30481 to 29566. [2021-12-18 02:16:28,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29566 states, 18213 states have (on average 1.2346675451600506) internal successors, (22487), 19142 states have internal predecessors, (22487), 8825 states have call successors, (8825), 2059 states have call predecessors, (8825), 2527 states have return successors, (14022), 8946 states have call predecessors, (14022), 8760 states have call successors, (14022) [2021-12-18 02:16:28,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29566 states to 29566 states and 45334 transitions. [2021-12-18 02:16:28,685 INFO L78 Accepts]: Start accepts. Automaton has 29566 states and 45334 transitions. Word has length 26 [2021-12-18 02:16:28,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:16:28,686 INFO L470 AbstractCegarLoop]: Abstraction has 29566 states and 45334 transitions. [2021-12-18 02:16:28,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-18 02:16:28,686 INFO L276 IsEmpty]: Start isEmpty. Operand 29566 states and 45334 transitions. [2021-12-18 02:16:28,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-18 02:16:28,687 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:16:28,690 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, 1, 1, 1, 1] [2021-12-18 02:16:28,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 02:16:28,690 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:16:28,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:16:28,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1039283785, now seen corresponding path program 1 times [2021-12-18 02:16:28,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:16:28,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128811881] [2021-12-18 02:16:28,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:16:28,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:16:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:16:29,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:16:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:16:29,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 02:16:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:16:29,259 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 02:16:29,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:16:29,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128811881] [2021-12-18 02:16:29,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128811881] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:16:29,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:16:29,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 02:16:29,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104318935] [2021-12-18 02:16:29,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:16:29,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 02:16:29,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:16:29,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 02:16:29,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 02:16:29,262 INFO L87 Difference]: Start difference. First operand 29566 states and 45334 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-18 02:16:31,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:16:32,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:16:43,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:16:51,651 WARN L534 Checker$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 02:16:54,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:16:56,743 WARN L534 Checker$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 02:16:59,383 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 02:17:09,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:17:09,711 INFO L93 Difference]: Finished difference Result 30442 states and 46941 transitions. [2021-12-18 02:17:09,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 02:17:09,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2021-12-18 02:17:09,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:17:09,867 INFO L225 Difference]: With dead ends: 30442 [2021-12-18 02:17:09,867 INFO L226 Difference]: Without dead ends: 30439 [2021-12-18 02:17:09,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 02:17:09,894 INFO L933 BasicCegarLoop]: 4304 mSDtfsCounter, 6244 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 3337 mSolverCounterSat, 3154 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6930 SdHoareTripleChecker+Valid, 4894 SdHoareTripleChecker+Invalid, 6496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3154 IncrementalHoareTripleChecker+Valid, 3337 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.5s IncrementalHoareTripleChecker+Time [2021-12-18 02:17:09,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6930 Valid, 4894 Invalid, 6496 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3154 Valid, 3337 Invalid, 5 Unknown, 0 Unchecked, 38.5s Time] [2021-12-18 02:17:09,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30439 states. [2021-12-18 02:17:11,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30439 to 29565. [2021-12-18 02:17:11,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29565 states, 18213 states have (on average 1.2346126393235601) internal successors, (22486), 19141 states have internal predecessors, (22486), 8824 states have call successors, (8824), 2059 states have call predecessors, (8824), 2527 states have return successors, (14022), 8946 states have call predecessors, (14022), 8760 states have call successors, (14022) [2021-12-18 02:17:11,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29565 states to 29565 states and 45332 transitions. [2021-12-18 02:17:11,481 INFO L78 Accepts]: Start accepts. Automaton has 29565 states and 45332 transitions. Word has length 27 [2021-12-18 02:17:11,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:17:11,481 INFO L470 AbstractCegarLoop]: Abstraction has 29565 states and 45332 transitions. [2021-12-18 02:17:11,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-18 02:17:11,481 INFO L276 IsEmpty]: Start isEmpty. Operand 29565 states and 45332 transitions. [2021-12-18 02:17:11,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-18 02:17:11,482 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:17:11,482 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, 1, 1, 1, 1, 1] [2021-12-18 02:17:11,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 02:17:11,483 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:17:11,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:17:11,483 INFO L85 PathProgramCache]: Analyzing trace with hash -2145110059, now seen corresponding path program 1 times [2021-12-18 02:17:11,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:17:11,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287850816] [2021-12-18 02:17:11,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:17:11,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:17:11,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:17:11,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:17:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:17:12,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 02:17:12,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:17:12,095 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 02:17:12,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:17:12,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287850816] [2021-12-18 02:17:12,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287850816] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:17:12,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:17:12,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 02:17:12,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806407389] [2021-12-18 02:17:12,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:17:12,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 02:17:12,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:17:12,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 02:17:12,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 02:17:12,097 INFO L87 Difference]: Start difference. First operand 29565 states and 45332 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-18 02:17:14,208 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:17:16,062 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:17:29,673 WARN L534 Checker$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 02:17:36,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:17:45,000 WARN L534 Checker$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 02:17:47,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:17:50,787 WARN L534 Checker$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 02:17:53,801 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:18:06,380 WARN L534 Checker$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 02:18:13,418 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:18:16,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:18:18,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:18:20,795 WARN L534 Checker$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 02:18:33,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:18:33,016 INFO L93 Difference]: Finished difference Result 87002 states and 149101 transitions. [2021-12-18 02:18:33,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 02:18:33,017 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2021-12-18 02:18:33,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:18:33,327 INFO L225 Difference]: With dead ends: 87002 [2021-12-18 02:18:33,327 INFO L226 Difference]: Without dead ends: 57450 [2021-12-18 02:18:33,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 02:18:33,783 INFO L933 BasicCegarLoop]: 5399 mSDtfsCounter, 7731 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 7878 mSolverCounterSat, 4096 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8777 SdHoareTripleChecker+Valid, 7065 SdHoareTripleChecker+Invalid, 11985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4096 IncrementalHoareTripleChecker+Valid, 7878 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76.8s IncrementalHoareTripleChecker+Time [2021-12-18 02:18:33,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8777 Valid, 7065 Invalid, 11985 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4096 Valid, 7878 Invalid, 11 Unknown, 0 Unchecked, 76.8s Time] [2021-12-18 02:18:33,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57450 states. [2021-12-18 02:18:36,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57450 to 55678. [2021-12-18 02:18:36,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55678 states, 34370 states have (on average 1.2345359324992726) internal successors, (42431), 36158 states have internal predecessors, (42431), 16396 states have call successors, (16396), 4010 states have call predecessors, (16396), 4911 states have return successors, (31257), 16617 states have call predecessors, (31257), 16295 states have call successors, (31257) [2021-12-18 02:18:37,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55678 states to 55678 states and 90084 transitions. [2021-12-18 02:18:37,419 INFO L78 Accepts]: Start accepts. Automaton has 55678 states and 90084 transitions. Word has length 28 [2021-12-18 02:18:37,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:18:37,419 INFO L470 AbstractCegarLoop]: Abstraction has 55678 states and 90084 transitions. [2021-12-18 02:18:37,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-18 02:18:37,420 INFO L276 IsEmpty]: Start isEmpty. Operand 55678 states and 90084 transitions. [2021-12-18 02:18:37,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-18 02:18:37,420 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:18:37,421 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, 1, 1, 1, 1, 1, 1] [2021-12-18 02:18:37,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 02:18:37,421 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:18:37,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:18:37,421 INFO L85 PathProgramCache]: Analyzing trace with hash -2077066548, now seen corresponding path program 1 times [2021-12-18 02:18:37,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:18:37,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69249054] [2021-12-18 02:18:37,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:18:37,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:18:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:18:38,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:18:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:18:38,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 02:18:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:18:38,052 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 02:18:38,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:18:38,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69249054] [2021-12-18 02:18:38,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69249054] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:18:38,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:18:38,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 02:18:38,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060994445] [2021-12-18 02:18:38,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:18:38,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 02:18:38,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:18:38,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 02:18:38,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 02:18:38,054 INFO L87 Difference]: Start difference. First operand 55678 states and 90084 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-18 02:18:40,187 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:18:42,201 WARN L534 Checker$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 02:18:51,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:18:59,046 WARN L534 Checker$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 02:19:02,480 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:19:04,544 WARN L534 Checker$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 02:19:07,032 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 02:19:17,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:19:17,215 INFO L93 Difference]: Finished difference Result 57360 states and 93291 transitions. [2021-12-18 02:19:17,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 02:19:17,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2021-12-18 02:19:17,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:19:17,599 INFO L225 Difference]: With dead ends: 57360 [2021-12-18 02:19:17,599 INFO L226 Difference]: Without dead ends: 57357 [2021-12-18 02:19:17,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 02:19:17,629 INFO L933 BasicCegarLoop]: 4303 mSDtfsCounter, 6237 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 3333 mSolverCounterSat, 3150 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6923 SdHoareTripleChecker+Valid, 4893 SdHoareTripleChecker+Invalid, 6490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3150 IncrementalHoareTripleChecker+Valid, 3333 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.1s IncrementalHoareTripleChecker+Time [2021-12-18 02:19:17,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6923 Valid, 4893 Invalid, 6490 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3150 Valid, 3333 Invalid, 7 Unknown, 0 Unchecked, 36.1s Time] [2021-12-18 02:19:17,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57357 states. [2021-12-18 02:19:20,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57357 to 55677. [2021-12-18 02:19:20,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55677 states, 34370 states have (on average 1.2345068373581611) internal successors, (42430), 36157 states have internal predecessors, (42430), 16395 states have call successors, (16395), 4010 states have call predecessors, (16395), 4911 states have return successors, (31257), 16617 states have call predecessors, (31257), 16295 states have call successors, (31257) [2021-12-18 02:19:21,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55677 states to 55677 states and 90082 transitions. [2021-12-18 02:19:21,139 INFO L78 Accepts]: Start accepts. Automaton has 55677 states and 90082 transitions. Word has length 29 [2021-12-18 02:19:21,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:19:21,140 INFO L470 AbstractCegarLoop]: Abstraction has 55677 states and 90082 transitions. [2021-12-18 02:19:21,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-18 02:19:21,140 INFO L276 IsEmpty]: Start isEmpty. Operand 55677 states and 90082 transitions. [2021-12-18 02:19:21,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-18 02:19:21,141 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:19:21,141 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 02:19:21,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 02:19:21,141 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:19:21,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:19:21,142 INFO L85 PathProgramCache]: Analyzing trace with hash 32287160, now seen corresponding path program 1 times [2021-12-18 02:19:21,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:19:21,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185951200] [2021-12-18 02:19:21,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:19:21,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:19:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:19:21,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:19:21,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:19:21,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 02:19:21,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:19:21,562 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 02:19:21,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:19:21,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185951200] [2021-12-18 02:19:21,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185951200] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:19:21,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:19:21,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 02:19:21,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553330878] [2021-12-18 02:19:21,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:19:21,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 02:19:21,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:19:21,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 02:19:21,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 02:19:21,564 INFO L87 Difference]: Start difference. First operand 55677 states and 90082 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-18 02:19:23,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:19:25,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:19:34,912 WARN L534 Checker$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 02:19:42,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:19:46,399 WARN L534 Checker$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 02:19:48,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:19:50,986 WARN L534 Checker$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 02:20:01,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 02:20:01,335 INFO L93 Difference]: Finished difference Result 57359 states and 93289 transitions. [2021-12-18 02:20:01,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 02:20:01,336 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2021-12-18 02:20:01,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 02:20:01,626 INFO L225 Difference]: With dead ends: 57359 [2021-12-18 02:20:01,626 INFO L226 Difference]: Without dead ends: 57339 [2021-12-18 02:20:01,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 02:20:01,669 INFO L933 BasicCegarLoop]: 4300 mSDtfsCounter, 6235 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 3332 mSolverCounterSat, 3149 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6922 SdHoareTripleChecker+Valid, 4890 SdHoareTripleChecker+Invalid, 6486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3149 IncrementalHoareTripleChecker+Valid, 3332 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.7s IncrementalHoareTripleChecker+Time [2021-12-18 02:20:01,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6922 Valid, 4890 Invalid, 6486 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3149 Valid, 3332 Invalid, 5 Unknown, 0 Unchecked, 36.7s Time] [2021-12-18 02:20:01,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57339 states. [2021-12-18 02:20:04,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57339 to 55659. [2021-12-18 02:20:04,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55659 states, 34355 states have (on average 1.2344636879639064) internal successors, (42410), 36141 states have internal predecessors, (42410), 16392 states have call successors, (16392), 4009 states have call predecessors, (16392), 4911 states have return successors, (31256), 16616 states have call predecessors, (31256), 16294 states have call successors, (31256) [2021-12-18 02:20:05,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55659 states to 55659 states and 90058 transitions. [2021-12-18 02:20:05,338 INFO L78 Accepts]: Start accepts. Automaton has 55659 states and 90058 transitions. Word has length 30 [2021-12-18 02:20:05,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 02:20:05,338 INFO L470 AbstractCegarLoop]: Abstraction has 55659 states and 90058 transitions. [2021-12-18 02:20:05,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-18 02:20:05,338 INFO L276 IsEmpty]: Start isEmpty. Operand 55659 states and 90058 transitions. [2021-12-18 02:20:05,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-18 02:20:05,341 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 02:20:05,341 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:20:05,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 02:20:05,341 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 02:20:05,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 02:20:05,341 INFO L85 PathProgramCache]: Analyzing trace with hash 134332765, now seen corresponding path program 1 times [2021-12-18 02:20:05,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 02:20:05,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230489743] [2021-12-18 02:20:05,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 02:20:05,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 02:20:05,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:20:05,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 02:20:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:20:05,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 02:20:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:20:05,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 02:20:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:20:06,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 02:20:06,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:20:06,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 02:20:06,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:20:06,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 02:20:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:20:06,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 02:20:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:20:06,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 02:20:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:20:06,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 02:20:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 02:20:06,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-18 02:20:06,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 02:20:06,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230489743] [2021-12-18 02:20:06,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230489743] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 02:20:06,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 02:20:06,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 02:20:06,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183991344] [2021-12-18 02:20:06,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 02:20:06,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 02:20:06,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 02:20:06,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 02:20:06,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 02:20:06,413 INFO L87 Difference]: Start difference. First operand 55659 states and 90058 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 02:20:08,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:20:10,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:20:12,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:20:13,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:20:21,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:20:45,543 WARN L534 Checker$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 02:20:56,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:21:05,926 WARN L534 Checker$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 02:21:08,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:21:11,855 WARN L534 Checker$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 02:21:14,778 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:21:16,823 WARN L534 Checker$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 02:21:18,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 02:21:50,348 WARN L534 Checker$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 02:21:54,610 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 [] Killed by 15