./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.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 e37e45521ffb127b83b9baab443e42b7c078cf8a8451cb2a1813ac325e01717d --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 03:49:59,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 03:49:59,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 03:49:59,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 03:49:59,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 03:49:59,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 03:49:59,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 03:49:59,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 03:49:59,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 03:49:59,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 03:49:59,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 03:49:59,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 03:49:59,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 03:49:59,255 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 03:49:59,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 03:49:59,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 03:49:59,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 03:49:59,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 03:49:59,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 03:49:59,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 03:49:59,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 03:49:59,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 03:49:59,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 03:49:59,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 03:49:59,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 03:49:59,273 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 03:49:59,273 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 03:49:59,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 03:49:59,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 03:49:59,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 03:49:59,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 03:49:59,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 03:49:59,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 03:49:59,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 03:49:59,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 03:49:59,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 03:49:59,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 03:49:59,277 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 03:49:59,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 03:49:59,278 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 03:49:59,278 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 03:49:59,281 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 03:49:59,309 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 03:49:59,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 03:49:59,310 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 03:49:59,310 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 03:49:59,311 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 03:49:59,311 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 03:49:59,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 03:49:59,311 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 03:49:59,312 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 03:49:59,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 03:49:59,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 03:49:59,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 03:49:59,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 03:49:59,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 03:49:59,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 03:49:59,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 03:49:59,313 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 03:49:59,314 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 03:49:59,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 03:49:59,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 03:49:59,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 03:49:59,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:49:59,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 03:49:59,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 03:49:59,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 03:49:59,315 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 03:49:59,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 03:49:59,315 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 03:49:59,315 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 03:49:59,315 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 03:49:59,315 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 03:49:59,316 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e37e45521ffb127b83b9baab443e42b7c078cf8a8451cb2a1813ac325e01717d [2021-12-16 03:49:59,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 03:49:59,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 03:49:59,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 03:49:59,530 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 03:49:59,530 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 03:49:59,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i [2021-12-16 03:49:59,589 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ed75922e/1a6ad261147b4b75a3a37c44181f4a5d/FLAGeaaaaedc3 [2021-12-16 03:50:00,267 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 03:50:00,267 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i [2021-12-16 03:50:00,304 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ed75922e/1a6ad261147b4b75a3a37c44181f4a5d/FLAGeaaaaedc3 [2021-12-16 03:50:00,610 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ed75922e/1a6ad261147b4b75a3a37c44181f4a5d [2021-12-16 03:50:00,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 03:50:00,618 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 03:50:00,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 03:50:00,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 03:50:00,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 03:50:00,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:50:00" (1/1) ... [2021-12-16 03:50:00,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c3508b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:50:00, skipping insertion in model container [2021-12-16 03:50:00,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:50:00" (1/1) ... [2021-12-16 03:50:00,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 03:50:00,737 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 03:50:03,073 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i[353005,353018] [2021-12-16 03:50:03,277 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:50:03,324 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 03:50:03,587 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i[353005,353018] [2021-12-16 03:50:03,600 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:50:03,778 INFO L208 MainTranslator]: Completed translation [2021-12-16 03:50:03,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:50:03 WrapperNode [2021-12-16 03:50:03,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 03:50:03,780 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 03:50:03,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 03:50:03,781 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 03:50:03,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:50:03" (1/1) ... [2021-12-16 03:50:03,885 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:50:03" (1/1) ... [2021-12-16 03:50:04,105 INFO L137 Inliner]: procedures = 511, calls = 3849, calls flagged for inlining = 265, calls inlined = 264, statements flattened = 9561 [2021-12-16 03:50:04,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 03:50:04,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 03:50:04,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 03:50:04,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 03:50:04,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:50:03" (1/1) ... [2021-12-16 03:50:04,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:50:03" (1/1) ... [2021-12-16 03:50:04,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:50:03" (1/1) ... [2021-12-16 03:50:04,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:50:03" (1/1) ... [2021-12-16 03:50:04,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:50:03" (1/1) ... [2021-12-16 03:50:04,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:50:03" (1/1) ... [2021-12-16 03:50:04,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:50:03" (1/1) ... [2021-12-16 03:50:04,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 03:50:04,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 03:50:04,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 03:50:04,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 03:50:04,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:50:03" (1/1) ... [2021-12-16 03:50:04,345 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:50:04,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:50:04,361 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) [2021-12-16 03:50:04,423 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 [2021-12-16 03:50:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_ref [2021-12-16 03:50:04,442 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_ref [2021-12-16 03:50:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 03:50:04,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 03:50:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure ast_drm_freeze [2021-12-16 03:50:04,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_drm_freeze [2021-12-16 03:50:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_probe_single_connector_modes [2021-12-16 03:50:04,443 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_probe_single_connector_modes [2021-12-16 03:50:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_dpms [2021-12-16 03:50:04,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_dpms [2021-12-16 03:50:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_pin [2021-12-16 03:50:04,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_pin [2021-12-16 03:50:04,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_struct_mutex_of_drm_device [2021-12-16 03:50:04,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_struct_mutex_of_drm_device [2021-12-16 03:50:04,444 INFO L130 BoogieDeclarations]: Found specification of procedure ast_read32 [2021-12-16 03:50:04,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_read32 [2021-12-16 03:50:04,444 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-16 03:50:04,444 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-16 03:50:04,444 INFO L130 BoogieDeclarations]: Found specification of procedure cbr_dll2 [2021-12-16 03:50:04,444 INFO L138 BoogieDeclarations]: Found implementation of procedure cbr_dll2 [2021-12-16 03:50:04,445 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_fixup [2021-12-16 03:50:04,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_fixup [2021-12-16 03:50:04,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 03:50:04,445 INFO L130 BoogieDeclarations]: Found specification of procedure moutdwm [2021-12-16 03:50:04,445 INFO L138 BoogieDeclarations]: Found implementation of procedure moutdwm [2021-12-16 03:50:04,445 INFO L130 BoogieDeclarations]: Found specification of procedure ast_drm_thaw [2021-12-16 03:50:04,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_drm_thaw [2021-12-16 03:50:04,445 INFO L130 BoogieDeclarations]: Found specification of procedure ast_dirty_update [2021-12-16 03:50:04,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_dirty_update [2021-12-16 03:50:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure ast_set_index_reg_mask [2021-12-16 03:50:04,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_set_index_reg_mask [2021-12-16 03:50:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kmap [2021-12-16 03:50:04,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kmap [2021-12-16 03:50:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_placement [2021-12-16 03:50:04,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_placement [2021-12-16 03:50:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_load_lut [2021-12-16 03:50:04,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_load_lut [2021-12-16 03:50:04,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-16 03:50:04,447 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kunmap [2021-12-16 03:50:04,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kunmap [2021-12-16 03:50:04,447 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_unref [2021-12-16 03:50:04,447 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_unref [2021-12-16 03:50:04,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-16 03:50:04,447 INFO L130 BoogieDeclarations]: Found specification of procedure ast_user_framebuffer_destroy [2021-12-16 03:50:04,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_user_framebuffer_destroy [2021-12-16 03:50:04,448 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_disable [2021-12-16 03:50:04,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_disable [2021-12-16 03:50:04,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 03:50:04,448 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_set_base [2021-12-16 03:50:04,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_set_base [2021-12-16 03:50:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-12-16 03:50:04,449 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-12-16 03:50:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure mindwm [2021-12-16 03:50:04,449 INFO L138 BoogieDeclarations]: Found implementation of procedure mindwm [2021-12-16 03:50:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure ast_io_read8 [2021-12-16 03:50:04,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_io_read8 [2021-12-16 03:50:04,450 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-16 03:50:04,450 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-16 03:50:04,450 INFO L130 BoogieDeclarations]: Found specification of procedure ast_user_framebuffer_create_handle [2021-12-16 03:50:04,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_user_framebuffer_create_handle [2021-12-16 03:50:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 03:50:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 03:50:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_gamma_set [2021-12-16 03:50:04,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_gamma_set [2021-12-16 03:50:04,452 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-16 03:50:04,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-16 03:50:04,452 INFO L130 BoogieDeclarations]: Found specification of procedure ast_fbdev_set_suspend [2021-12-16 03:50:04,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_fbdev_set_suspend [2021-12-16 03:50:04,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 03:50:04,452 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 03:50:04,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 03:50:04,452 INFO L130 BoogieDeclarations]: Found specification of procedure ast_framebuffer_init [2021-12-16 03:50:04,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_framebuffer_init [2021-12-16 03:50:04,453 INFO L130 BoogieDeclarations]: Found specification of procedure ast_cursor_set [2021-12-16 03:50:04,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_cursor_set [2021-12-16 03:50:04,453 INFO L130 BoogieDeclarations]: Found specification of procedure ast_open_key [2021-12-16 03:50:04,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_open_key [2021-12-16 03:50:04,453 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_validate [2021-12-16 03:50:04,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_validate [2021-12-16 03:50:04,454 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_test_burst2 [2021-12-16 03:50:04,454 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_test_burst2 [2021-12-16 03:50:04,454 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_unreserve [2021-12-16 03:50:04,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_unreserve [2021-12-16 03:50:04,454 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-16 03:50:04,454 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-16 03:50:04,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 03:50:04,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 03:50:04,455 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-16 03:50:04,455 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-16 03:50:04,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-16 03:50:04,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-16 03:50:04,455 INFO L130 BoogieDeclarations]: Found specification of procedure ast_connector_detect [2021-12-16 03:50:04,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_connector_detect [2021-12-16 03:50:04,456 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_prepare [2021-12-16 03:50:04,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_prepare [2021-12-16 03:50:04,456 INFO L130 BoogieDeclarations]: Found specification of procedure ast_get_index_reg_mask [2021-12-16 03:50:04,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_get_index_reg_mask [2021-12-16 03:50:04,456 INFO L130 BoogieDeclarations]: Found specification of procedure ast_gem_create [2021-12-16 03:50:04,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_gem_create [2021-12-16 03:50:04,457 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_prepare [2021-12-16 03:50:04,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_prepare [2021-12-16 03:50:04,457 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-16 03:50:04,457 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-16 03:50:04,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 03:50:04,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 03:50:04,458 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_reserve [2021-12-16 03:50:04,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_reserve [2021-12-16 03:50:04,458 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked [2021-12-16 03:50:04,458 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked [2021-12-16 03:50:04,458 INFO L130 BoogieDeclarations]: Found specification of procedure ast_mmap [2021-12-16 03:50:04,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_mmap [2021-12-16 03:50:04,458 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-16 03:50:04,459 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-16 03:50:04,459 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-16 03:50:04,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-16 03:50:04,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 03:50:04,459 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_free [2021-12-16 03:50:04,460 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_release [2021-12-16 03:50:04,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_struct_mutex_of_drm_device [2021-12-16 03:50:04,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_struct_mutex_of_drm_device [2021-12-16 03:50:04,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 03:50:04,462 INFO L130 BoogieDeclarations]: Found specification of procedure ast_connector_destroy [2021-12-16 03:50:04,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_connector_destroy [2021-12-16 03:50:04,463 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_commit [2021-12-16 03:50:04,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_commit [2021-12-16 03:50:04,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 03:50:04,464 INFO L130 BoogieDeclarations]: Found specification of procedure ast_pm_resume [2021-12-16 03:50:04,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_pm_resume [2021-12-16 03:50:04,467 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-16 03:50:04,467 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-16 03:50:04,467 INFO L130 BoogieDeclarations]: Found specification of procedure ast_io_write8 [2021-12-16 03:50:04,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_io_write8 [2021-12-16 03:50:04,467 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_kmap_obj_virtual [2021-12-16 03:50:04,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_kmap_obj_virtual [2021-12-16 03:50:04,468 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_destroy [2021-12-16 03:50:04,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_destroy [2021-12-16 03:50:04,468 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_gpu_offset [2021-12-16 03:50:04,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_gpu_offset [2021-12-16 03:50:04,468 INFO L130 BoogieDeclarations]: Found specification of procedure ast_write32 [2021-12-16 03:50:04,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_write32 [2021-12-16 03:50:04,468 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_reset [2021-12-16 03:50:04,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_reset [2021-12-16 03:50:04,468 INFO L130 BoogieDeclarations]: Found specification of procedure ast_gem_free_object [2021-12-16 03:50:04,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_gem_free_object [2021-12-16 03:50:04,469 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked___0 [2021-12-16 03:50:04,469 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked___0 [2021-12-16 03:50:04,469 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_backend_destroy [2021-12-16 03:50:04,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_backend_destroy [2021-12-16 03:50:04,469 INFO L130 BoogieDeclarations]: Found specification of procedure ast_pci_remove [2021-12-16 03:50:04,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_pci_remove [2021-12-16 03:50:04,469 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_connector_dpms [2021-12-16 03:50:04,469 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_connector_dpms [2021-12-16 03:50:04,469 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_set [2021-12-16 03:50:04,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_set [2021-12-16 03:50:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_test_single2 [2021-12-16 03:50:04,470 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_test_single2 [2021-12-16 03:50:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 03:50:04,470 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 03:50:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 03:50:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure ast_set_index_reg [2021-12-16 03:50:04,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_set_index_reg [2021-12-16 03:50:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure cbrdlli_ast2150 [2021-12-16 03:50:04,470 INFO L138 BoogieDeclarations]: Found implementation of procedure cbrdlli_ast2150 [2021-12-16 03:50:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 03:50:04,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 03:50:04,471 INFO L130 BoogieDeclarations]: Found specification of procedure drm_fasync [2021-12-16 03:50:04,471 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_fasync [2021-12-16 03:50:04,471 INFO L130 BoogieDeclarations]: Found specification of procedure drm_framebuffer_cleanup [2021-12-16 03:50:04,471 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_framebuffer_cleanup [2021-12-16 03:50:04,471 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_commit [2021-12-16 03:50:04,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_commit [2021-12-16 03:50:04,471 INFO L130 BoogieDeclarations]: Found specification of procedure drm_crtc_helper_set_config [2021-12-16 03:50:04,471 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_crtc_helper_set_config [2021-12-16 03:50:04,471 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2021-12-16 03:50:04,472 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2021-12-16 03:50:04,472 INFO L130 BoogieDeclarations]: Found specification of procedure ast_cursor_move [2021-12-16 03:50:04,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_cursor_move [2021-12-16 03:50:04,472 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2021-12-16 03:50:04,472 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2021-12-16 03:50:04,472 INFO L130 BoogieDeclarations]: Found specification of procedure drm_poll [2021-12-16 03:50:04,472 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_poll [2021-12-16 03:50:04,472 INFO L130 BoogieDeclarations]: Found specification of procedure drm_mode_connector_update_edid_property [2021-12-16 03:50:04,472 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_mode_connector_update_edid_property [2021-12-16 03:50:04,472 INFO L130 BoogieDeclarations]: Found specification of procedure cbr_scan2 [2021-12-16 03:50:04,473 INFO L138 BoogieDeclarations]: Found implementation of procedure cbr_scan2 [2021-12-16 03:50:04,473 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-16 03:50:04,473 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-16 03:50:04,473 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_tt_unpopulate [2021-12-16 03:50:04,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_tt_unpopulate [2021-12-16 03:50:04,473 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_lookup [2021-12-16 03:50:04,473 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_lookup [2021-12-16 03:50:04,473 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_destroy [2021-12-16 03:50:04,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_destroy [2021-12-16 03:50:04,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 03:50:05,223 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 03:50:05,225 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 03:50:13,621 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ast_gem_init_object_returnLabel#1: main_#t~ret94#1 := ast_gem_init_object_#res#1;assume { :end_inline_ast_gem_init_object } true;assume -2147483648 <= main_#t~ret94#1 && main_#t~ret94#1 <= 2147483647;havoc main_#t~ret94#1;~ldv_state_variable_13~0 := 1; [2021-12-16 03:50:13,687 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 03:50:13,712 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 03:50:13,713 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-16 03:50:13,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:50:13 BoogieIcfgContainer [2021-12-16 03:50:13,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 03:50:13,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 03:50:13,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 03:50:13,721 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 03:50:13,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:50:00" (1/3) ... [2021-12-16 03:50:13,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25808cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:50:13, skipping insertion in model container [2021-12-16 03:50:13,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:50:03" (2/3) ... [2021-12-16 03:50:13,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25808cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:50:13, skipping insertion in model container [2021-12-16 03:50:13,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:50:13" (3/3) ... [2021-12-16 03:50:13,723 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i [2021-12-16 03:50:13,727 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 03:50:13,727 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 03:50:13,775 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 03:50:13,780 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 [2021-12-16 03:50:13,780 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 03:50:13,849 INFO L276 IsEmpty]: Start isEmpty. Operand has 2566 states, 1829 states have (on average 1.437944231820667) internal successors, (2630), 1887 states have internal predecessors, (2630), 647 states have call successors, (647), 88 states have call predecessors, (647), 88 states have return successors, (647), 627 states have call predecessors, (647), 647 states have call successors, (647) [2021-12-16 03:50:13,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-16 03:50:13,856 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:50:13,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:50:13,857 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:50:13,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:50:13,860 INFO L85 PathProgramCache]: Analyzing trace with hash 337264067, now seen corresponding path program 1 times [2021-12-16 03:50:13,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:50:13,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246812889] [2021-12-16 03:50:13,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:50:13,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:50:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:50:14,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:50:14,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:50:14,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246812889] [2021-12-16 03:50:14,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246812889] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:50:14,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:50:14,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:50:14,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644212006] [2021-12-16 03:50:14,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:50:14,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:50:14,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:50:14,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:50:14,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:50:14,419 INFO L87 Difference]: Start difference. First operand has 2566 states, 1829 states have (on average 1.437944231820667) internal successors, (2630), 1887 states have internal predecessors, (2630), 647 states have call successors, (647), 88 states have call predecessors, (647), 88 states have return successors, (647), 627 states have call predecessors, (647), 647 states have call successors, (647) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:50:14,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:50:14,712 INFO L93 Difference]: Finished difference Result 7661 states and 11847 transitions. [2021-12-16 03:50:14,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:50:14,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-12-16 03:50:14,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:50:14,767 INFO L225 Difference]: With dead ends: 7661 [2021-12-16 03:50:14,767 INFO L226 Difference]: Without dead ends: 5092 [2021-12-16 03:50:14,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:50:14,792 INFO L933 BasicCegarLoop]: 4561 mSDtfsCounter, 3866 mSDsluCounter, 3890 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3866 SdHoareTripleChecker+Valid, 8451 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:50:14,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3866 Valid, 8451 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:50:14,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5092 states. [2021-12-16 03:50:15,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5092 to 5086. [2021-12-16 03:50:15,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5086 states, 3628 states have (on average 1.4355016538037486) internal successors, (5208), 3730 states have internal predecessors, (5208), 1283 states have call successors, (1283), 175 states have call predecessors, (1283), 174 states have return successors, (1272), 1232 states have call predecessors, (1272), 1272 states have call successors, (1272) [2021-12-16 03:50:15,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5086 states to 5086 states and 7763 transitions. [2021-12-16 03:50:15,225 INFO L78 Accepts]: Start accepts. Automaton has 5086 states and 7763 transitions. Word has length 18 [2021-12-16 03:50:15,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:50:15,225 INFO L470 AbstractCegarLoop]: Abstraction has 5086 states and 7763 transitions. [2021-12-16 03:50:15,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:50:15,226 INFO L276 IsEmpty]: Start isEmpty. Operand 5086 states and 7763 transitions. [2021-12-16 03:50:15,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-16 03:50:15,229 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:50:15,229 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] [2021-12-16 03:50:15,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 03:50:15,230 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:50:15,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:50:15,230 INFO L85 PathProgramCache]: Analyzing trace with hash -427214803, now seen corresponding path program 1 times [2021-12-16 03:50:15,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:50:15,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805579591] [2021-12-16 03:50:15,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:50:15,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:50:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:50:15,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:50:15,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:50:15,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805579591] [2021-12-16 03:50:15,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805579591] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:50:15,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:50:15,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:50:15,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885978755] [2021-12-16 03:50:15,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:50:15,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:50:15,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:50:15,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:50:15,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:50:15,462 INFO L87 Difference]: Start difference. First operand 5086 states and 7763 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:50:15,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:50:15,845 INFO L93 Difference]: Finished difference Result 14683 states and 22435 transitions. [2021-12-16 03:50:15,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:50:15,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-12-16 03:50:15,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:50:15,898 INFO L225 Difference]: With dead ends: 14683 [2021-12-16 03:50:15,898 INFO L226 Difference]: Without dead ends: 9600 [2021-12-16 03:50:15,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:50:15,925 INFO L933 BasicCegarLoop]: 4696 mSDtfsCounter, 3468 mSDsluCounter, 3878 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3468 SdHoareTripleChecker+Valid, 8574 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:50:15,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3468 Valid, 8574 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:50:15,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9600 states. [2021-12-16 03:50:16,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9600 to 9577. [2021-12-16 03:50:16,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9577 states, 6793 states have (on average 1.4382452524657736) internal successors, (9770), 6985 states have internal predecessors, (9770), 2443 states have call successors, (2443), 341 states have call predecessors, (2443), 340 states have return successors, (2432), 2352 states have call predecessors, (2432), 2432 states have call successors, (2432) [2021-12-16 03:50:16,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9577 states to 9577 states and 14645 transitions. [2021-12-16 03:50:16,531 INFO L78 Accepts]: Start accepts. Automaton has 9577 states and 14645 transitions. Word has length 23 [2021-12-16 03:50:16,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:50:16,531 INFO L470 AbstractCegarLoop]: Abstraction has 9577 states and 14645 transitions. [2021-12-16 03:50:16,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:50:16,532 INFO L276 IsEmpty]: Start isEmpty. Operand 9577 states and 14645 transitions. [2021-12-16 03:50:16,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-16 03:50:16,535 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:50:16,535 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] [2021-12-16 03:50:16,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 03:50:16,536 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:50:16,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:50:16,536 INFO L85 PathProgramCache]: Analyzing trace with hash -541647884, now seen corresponding path program 1 times [2021-12-16 03:50:16,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:50:16,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363336983] [2021-12-16 03:50:16,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:50:16,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:50:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:50:16,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:50:16,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:50:16,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363336983] [2021-12-16 03:50:16,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363336983] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:50:16,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:50:16,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:50:16,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210884496] [2021-12-16 03:50:16,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:50:16,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:50:16,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:50:16,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:50:16,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:50:16,734 INFO L87 Difference]: Start difference. First operand 9577 states and 14645 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:50:17,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:50:17,109 INFO L93 Difference]: Finished difference Result 19174 states and 29319 transitions. [2021-12-16 03:50:17,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:50:17,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-16 03:50:17,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:50:17,153 INFO L225 Difference]: With dead ends: 19174 [2021-12-16 03:50:17,154 INFO L226 Difference]: Without dead ends: 9600 [2021-12-16 03:50:17,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:50:17,197 INFO L933 BasicCegarLoop]: 3900 mSDtfsCounter, 34 mSDsluCounter, 7795 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 11695 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:50:17,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 11695 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:50:17,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9600 states. [2021-12-16 03:50:17,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9600 to 9580. [2021-12-16 03:50:17,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9580 states, 6796 states have (on average 1.4380517951736316) internal successors, (9773), 6988 states have internal predecessors, (9773), 2443 states have call successors, (2443), 341 states have call predecessors, (2443), 340 states have return successors, (2432), 2352 states have call predecessors, (2432), 2432 states have call successors, (2432) [2021-12-16 03:50:17,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9580 states to 9580 states and 14648 transitions. [2021-12-16 03:50:17,701 INFO L78 Accepts]: Start accepts. Automaton has 9580 states and 14648 transitions. Word has length 22 [2021-12-16 03:50:17,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:50:17,702 INFO L470 AbstractCegarLoop]: Abstraction has 9580 states and 14648 transitions. [2021-12-16 03:50:17,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:50:17,702 INFO L276 IsEmpty]: Start isEmpty. Operand 9580 states and 14648 transitions. [2021-12-16 03:50:17,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-16 03:50:17,703 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:50:17,703 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] [2021-12-16 03:50:17,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 03:50:17,703 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:50:17,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:50:17,704 INFO L85 PathProgramCache]: Analyzing trace with hash -484389582, now seen corresponding path program 1 times [2021-12-16 03:50:17,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:50:17,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505957881] [2021-12-16 03:50:17,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:50:17,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:50:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:50:17,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:50:17,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:50:17,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505957881] [2021-12-16 03:50:17,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505957881] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:50:17,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:50:17,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:50:17,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291838722] [2021-12-16 03:50:17,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:50:17,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:50:17,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:50:17,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:50:17,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:50:17,906 INFO L87 Difference]: Start difference. First operand 9580 states and 14648 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:50:18,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:50:18,087 INFO L93 Difference]: Finished difference Result 9582 states and 14649 transitions. [2021-12-16 03:50:18,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:50:18,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-16 03:50:18,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:50:18,136 INFO L225 Difference]: With dead ends: 9582 [2021-12-16 03:50:18,136 INFO L226 Difference]: Without dead ends: 9579 [2021-12-16 03:50:18,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:50:18,144 INFO L933 BasicCegarLoop]: 3900 mSDtfsCounter, 3882 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3882 SdHoareTripleChecker+Valid, 3900 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:50:18,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3882 Valid, 3900 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:50:18,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9579 states. [2021-12-16 03:50:18,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9579 to 9579. [2021-12-16 03:50:18,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9579 states, 6796 states have (on average 1.4379046497939965) internal successors, (9772), 6987 states have internal predecessors, (9772), 2442 states have call successors, (2442), 341 states have call predecessors, (2442), 340 states have return successors, (2432), 2352 states have call predecessors, (2432), 2432 states have call successors, (2432) [2021-12-16 03:50:18,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9579 states to 9579 states and 14646 transitions. [2021-12-16 03:50:18,544 INFO L78 Accepts]: Start accepts. Automaton has 9579 states and 14646 transitions. Word has length 22 [2021-12-16 03:50:18,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:50:18,545 INFO L470 AbstractCegarLoop]: Abstraction has 9579 states and 14646 transitions. [2021-12-16 03:50:18,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:50:18,545 INFO L276 IsEmpty]: Start isEmpty. Operand 9579 states and 14646 transitions. [2021-12-16 03:50:18,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-16 03:50:18,547 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:50:18,547 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] [2021-12-16 03:50:18,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 03:50:18,548 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:50:18,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:50:18,549 INFO L85 PathProgramCache]: Analyzing trace with hash -2132288794, now seen corresponding path program 1 times [2021-12-16 03:50:18,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:50:18,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693501614] [2021-12-16 03:50:18,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:50:18,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:50:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:50:18,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:50:18,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:50:18,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693501614] [2021-12-16 03:50:18,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693501614] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:50:18,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:50:18,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:50:18,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782746123] [2021-12-16 03:50:18,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:50:18,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:50:18,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:50:18,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:50:18,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:50:18,738 INFO L87 Difference]: Start difference. First operand 9579 states and 14646 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:50:19,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:50:19,004 INFO L93 Difference]: Finished difference Result 9581 states and 14647 transitions. [2021-12-16 03:50:19,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:50:19,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-12-16 03:50:19,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:50:19,039 INFO L225 Difference]: With dead ends: 9581 [2021-12-16 03:50:19,039 INFO L226 Difference]: Without dead ends: 9578 [2021-12-16 03:50:19,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:50:19,045 INFO L933 BasicCegarLoop]: 3898 mSDtfsCounter, 3879 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3879 SdHoareTripleChecker+Valid, 3898 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:50:19,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3879 Valid, 3898 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:50:19,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9578 states. [2021-12-16 03:50:19,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9578 to 9578. [2021-12-16 03:50:19,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9578 states, 6796 states have (on average 1.4377575044143613) internal successors, (9771), 6986 states have internal predecessors, (9771), 2441 states have call successors, (2441), 341 states have call predecessors, (2441), 340 states have return successors, (2432), 2352 states have call predecessors, (2432), 2432 states have call successors, (2432) [2021-12-16 03:50:19,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9578 states to 9578 states and 14644 transitions. [2021-12-16 03:50:19,511 INFO L78 Accepts]: Start accepts. Automaton has 9578 states and 14644 transitions. Word has length 23 [2021-12-16 03:50:19,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:50:19,511 INFO L470 AbstractCegarLoop]: Abstraction has 9578 states and 14644 transitions. [2021-12-16 03:50:19,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:50:19,511 INFO L276 IsEmpty]: Start isEmpty. Operand 9578 states and 14644 transitions. [2021-12-16 03:50:19,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-16 03:50:19,513 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:50:19,513 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] [2021-12-16 03:50:19,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 03:50:19,513 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:50:19,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:50:19,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1677551947, now seen corresponding path program 1 times [2021-12-16 03:50:19,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:50:19,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460886543] [2021-12-16 03:50:19,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:50:19,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:50:19,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:50:19,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:50:19,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:50:19,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460886543] [2021-12-16 03:50:19,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460886543] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:50:19,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:50:19,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:50:19,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055073314] [2021-12-16 03:50:19,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:50:19,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:50:19,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:50:19,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:50:19,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:50:19,732 INFO L87 Difference]: Start difference. First operand 9578 states and 14644 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:50:19,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:50:19,908 INFO L93 Difference]: Finished difference Result 9580 states and 14645 transitions. [2021-12-16 03:50:19,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:50:19,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-12-16 03:50:19,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:50:19,945 INFO L225 Difference]: With dead ends: 9580 [2021-12-16 03:50:19,946 INFO L226 Difference]: Without dead ends: 9577 [2021-12-16 03:50:19,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:50:19,954 INFO L933 BasicCegarLoop]: 3896 mSDtfsCounter, 3876 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3876 SdHoareTripleChecker+Valid, 3896 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:50:19,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3876 Valid, 3896 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:50:19,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9577 states. [2021-12-16 03:50:20,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9577 to 9577. [2021-12-16 03:50:20,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9577 states, 6796 states have (on average 1.4376103590347262) internal successors, (9770), 6985 states have internal predecessors, (9770), 2440 states have call successors, (2440), 341 states have call predecessors, (2440), 340 states have return successors, (2432), 2352 states have call predecessors, (2432), 2432 states have call successors, (2432) [2021-12-16 03:50:20,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9577 states to 9577 states and 14642 transitions. [2021-12-16 03:50:20,312 INFO L78 Accepts]: Start accepts. Automaton has 9577 states and 14642 transitions. Word has length 24 [2021-12-16 03:50:20,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:50:20,312 INFO L470 AbstractCegarLoop]: Abstraction has 9577 states and 14642 transitions. [2021-12-16 03:50:20,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:50:20,313 INFO L276 IsEmpty]: Start isEmpty. Operand 9577 states and 14642 transitions. [2021-12-16 03:50:20,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-16 03:50:20,314 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:50:20,315 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] [2021-12-16 03:50:20,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 03:50:20,315 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:50:20,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:50:20,315 INFO L85 PathProgramCache]: Analyzing trace with hash -465606711, now seen corresponding path program 1 times [2021-12-16 03:50:20,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:50:20,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435401330] [2021-12-16 03:50:20,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:50:20,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:50:20,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:50:20,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:50:20,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:50:20,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435401330] [2021-12-16 03:50:20,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435401330] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:50:20,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:50:20,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:50:20,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968857304] [2021-12-16 03:50:20,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:50:20,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:50:20,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:50:20,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:50:20,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:50:20,482 INFO L87 Difference]: Start difference. First operand 9577 states and 14642 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:50:20,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:50:20,673 INFO L93 Difference]: Finished difference Result 9579 states and 14643 transitions. [2021-12-16 03:50:20,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:50:20,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-12-16 03:50:20,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:50:20,709 INFO L225 Difference]: With dead ends: 9579 [2021-12-16 03:50:20,709 INFO L226 Difference]: Without dead ends: 9576 [2021-12-16 03:50:20,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:50:20,720 INFO L933 BasicCegarLoop]: 3894 mSDtfsCounter, 3873 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3873 SdHoareTripleChecker+Valid, 3894 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:50:20,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3873 Valid, 3894 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:50:20,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9576 states. [2021-12-16 03:50:21,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9576 to 9576. [2021-12-16 03:50:21,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9576 states, 6796 states have (on average 1.4374632136550913) internal successors, (9769), 6984 states have internal predecessors, (9769), 2439 states have call successors, (2439), 341 states have call predecessors, (2439), 340 states have return successors, (2432), 2352 states have call predecessors, (2432), 2432 states have call successors, (2432) [2021-12-16 03:50:21,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9576 states to 9576 states and 14640 transitions. [2021-12-16 03:50:21,173 INFO L78 Accepts]: Start accepts. Automaton has 9576 states and 14640 transitions. Word has length 25 [2021-12-16 03:50:21,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:50:21,173 INFO L470 AbstractCegarLoop]: Abstraction has 9576 states and 14640 transitions. [2021-12-16 03:50:21,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:50:21,173 INFO L276 IsEmpty]: Start isEmpty. Operand 9576 states and 14640 transitions. [2021-12-16 03:50:21,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-16 03:50:21,177 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:50:21,177 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] [2021-12-16 03:50:21,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 03:50:21,177 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:50:21,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:50:21,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1488446885, now seen corresponding path program 1 times [2021-12-16 03:50:21,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:50:21,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842703137] [2021-12-16 03:50:21,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:50:21,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:50:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:50:21,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:50:21,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:50:21,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842703137] [2021-12-16 03:50:21,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842703137] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:50:21,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:50:21,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:50:21,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37315996] [2021-12-16 03:50:21,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:50:21,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:50:21,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:50:21,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:50:21,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:50:21,339 INFO L87 Difference]: Start difference. First operand 9576 states and 14640 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:50:21,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:50:21,856 INFO L93 Difference]: Finished difference Result 28641 states and 43792 transitions. [2021-12-16 03:50:21,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:50:21,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-12-16 03:50:21,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:50:21,920 INFO L225 Difference]: With dead ends: 28641 [2021-12-16 03:50:21,921 INFO L226 Difference]: Without dead ends: 19068 [2021-12-16 03:50:21,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:50:21,954 INFO L933 BasicCegarLoop]: 5186 mSDtfsCounter, 3849 mSDsluCounter, 3877 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3849 SdHoareTripleChecker+Valid, 9063 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:50:21,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3849 Valid, 9063 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:50:21,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19068 states. [2021-12-16 03:50:22,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19068 to 19046. [2021-12-16 03:50:22,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19046 states, 13510 states have (on average 1.4372316802368617) internal successors, (19417), 13880 states have internal predecessors, (19417), 4859 states have call successors, (4859), 677 states have call predecessors, (4859), 676 states have return successors, (4852), 4692 states have call predecessors, (4852), 4852 states have call successors, (4852) [2021-12-16 03:50:22,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19046 states to 19046 states and 29128 transitions. [2021-12-16 03:50:22,942 INFO L78 Accepts]: Start accepts. Automaton has 19046 states and 29128 transitions. Word has length 29 [2021-12-16 03:50:22,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:50:22,942 INFO L470 AbstractCegarLoop]: Abstraction has 19046 states and 29128 transitions. [2021-12-16 03:50:22,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:50:22,943 INFO L276 IsEmpty]: Start isEmpty. Operand 19046 states and 29128 transitions. [2021-12-16 03:50:22,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-16 03:50:22,945 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:50:22,945 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] [2021-12-16 03:50:22,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 03:50:22,945 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:50:22,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:50:22,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1550005192, now seen corresponding path program 1 times [2021-12-16 03:50:22,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:50:22,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026775015] [2021-12-16 03:50:22,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:50:22,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:50:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:50:23,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:50:23,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:50:23,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026775015] [2021-12-16 03:50:23,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026775015] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:50:23,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:50:23,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:50:23,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587245590] [2021-12-16 03:50:23,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:50:23,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:50:23,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:50:23,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:50:23,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:50:23,105 INFO L87 Difference]: Start difference. First operand 19046 states and 29128 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:50:23,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:50:23,525 INFO L93 Difference]: Finished difference Result 19074 states and 29146 transitions. [2021-12-16 03:50:23,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:50:23,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-12-16 03:50:23,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:50:23,604 INFO L225 Difference]: With dead ends: 19074 [2021-12-16 03:50:23,605 INFO L226 Difference]: Without dead ends: 19070 [2021-12-16 03:50:23,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:50:23,622 INFO L933 BasicCegarLoop]: 3889 mSDtfsCounter, 3858 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3858 SdHoareTripleChecker+Valid, 3898 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:50:23,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3858 Valid, 3898 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:50:23,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19070 states. [2021-12-16 03:50:24,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19070 to 19068. [2021-12-16 03:50:24,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19068 states, 13526 states have (on average 1.4360490906402483) internal successors, (19424), 13894 states have internal predecessors, (19424), 4857 states have call successors, (4857), 685 states have call predecessors, (4857), 684 states have return successors, (4852), 4692 states have call predecessors, (4852), 4852 states have call successors, (4852) [2021-12-16 03:50:24,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19068 states to 19068 states and 29133 transitions. [2021-12-16 03:50:24,569 INFO L78 Accepts]: Start accepts. Automaton has 19068 states and 29133 transitions. Word has length 26 [2021-12-16 03:50:24,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:50:24,570 INFO L470 AbstractCegarLoop]: Abstraction has 19068 states and 29133 transitions. [2021-12-16 03:50:24,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:50:24,570 INFO L276 IsEmpty]: Start isEmpty. Operand 19068 states and 29133 transitions. [2021-12-16 03:50:24,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-16 03:50:24,573 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:50:24,573 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] [2021-12-16 03:50:24,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 03:50:24,573 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:50:24,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:50:24,574 INFO L85 PathProgramCache]: Analyzing trace with hash -806614868, now seen corresponding path program 1 times [2021-12-16 03:50:24,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:50:24,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268416979] [2021-12-16 03:50:24,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:50:24,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:50:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:50:24,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:50:24,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:50:24,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268416979] [2021-12-16 03:50:24,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268416979] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:50:24,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:50:24,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:50:24,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344436179] [2021-12-16 03:50:24,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:50:24,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:50:24,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:50:24,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:50:24,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:50:24,730 INFO L87 Difference]: Start difference. First operand 19068 states and 29133 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:50:25,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:50:25,447 INFO L93 Difference]: Finished difference Result 39355 states and 59716 transitions. [2021-12-16 03:50:25,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:50:25,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-12-16 03:50:25,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:50:25,522 INFO L225 Difference]: With dead ends: 39355 [2021-12-16 03:50:25,522 INFO L226 Difference]: Without dead ends: 20290 [2021-12-16 03:50:25,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:50:25,574 INFO L933 BasicCegarLoop]: 3957 mSDtfsCounter, 3744 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3744 SdHoareTripleChecker+Valid, 4252 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:50:25,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3744 Valid, 4252 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:50:25,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20290 states. [2021-12-16 03:50:26,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20290 to 20227. [2021-12-16 03:50:26,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20227 states, 14274 states have (on average 1.417051982625753) internal successors, (20227), 14648 states have internal predecessors, (20227), 5044 states have call successors, (5044), 890 states have call predecessors, (5044), 908 states have return successors, (5092), 4900 states have call predecessors, (5092), 5036 states have call successors, (5092) [2021-12-16 03:50:26,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20227 states to 20227 states and 30363 transitions. [2021-12-16 03:50:26,482 INFO L78 Accepts]: Start accepts. Automaton has 20227 states and 30363 transitions. Word has length 27 [2021-12-16 03:50:26,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:50:26,483 INFO L470 AbstractCegarLoop]: Abstraction has 20227 states and 30363 transitions. [2021-12-16 03:50:26,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:50:26,483 INFO L276 IsEmpty]: Start isEmpty. Operand 20227 states and 30363 transitions. [2021-12-16 03:50:26,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-16 03:50:26,486 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:50:26,486 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] [2021-12-16 03:50:26,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-16 03:50:26,486 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:50:26,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:50:26,487 INFO L85 PathProgramCache]: Analyzing trace with hash 763653563, now seen corresponding path program 1 times [2021-12-16 03:50:26,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:50:26,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381346859] [2021-12-16 03:50:26,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:50:26,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:50:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:50:26,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:50:26,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:50:26,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381346859] [2021-12-16 03:50:26,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381346859] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:50:26,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:50:26,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:50:26,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619367777] [2021-12-16 03:50:26,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:50:26,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:50:26,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:50:26,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:50:26,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:50:26,652 INFO L87 Difference]: Start difference. First operand 20227 states and 30363 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:50:27,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:50:27,028 INFO L93 Difference]: Finished difference Result 20229 states and 30364 transitions. [2021-12-16 03:50:27,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:50:27,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-12-16 03:50:27,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:50:27,116 INFO L225 Difference]: With dead ends: 20229 [2021-12-16 03:50:27,116 INFO L226 Difference]: Without dead ends: 20213 [2021-12-16 03:50:27,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:50:27,132 INFO L933 BasicCegarLoop]: 3887 mSDtfsCounter, 3862 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3862 SdHoareTripleChecker+Valid, 3887 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 03:50:27,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3862 Valid, 3887 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 03:50:27,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20213 states. [2021-12-16 03:50:28,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20213 to 20213. [2021-12-16 03:50:28,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20213 states, 14261 states have (on average 1.4162400953649814) internal successors, (20197), 14634 states have internal predecessors, (20197), 5043 states have call successors, (5043), 890 states have call predecessors, (5043), 908 states have return successors, (5092), 4900 states have call predecessors, (5092), 5036 states have call successors, (5092) [2021-12-16 03:50:28,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20213 states to 20213 states and 30332 transitions. [2021-12-16 03:50:28,180 INFO L78 Accepts]: Start accepts. Automaton has 20213 states and 30332 transitions. Word has length 28 [2021-12-16 03:50:28,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:50:28,180 INFO L470 AbstractCegarLoop]: Abstraction has 20213 states and 30332 transitions. [2021-12-16 03:50:28,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:50:28,181 INFO L276 IsEmpty]: Start isEmpty. Operand 20213 states and 30332 transitions. [2021-12-16 03:50:28,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-16 03:50:28,194 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:50:28,194 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:50:28,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-16 03:50:28,194 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:50:28,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:50:28,195 INFO L85 PathProgramCache]: Analyzing trace with hash 929900714, now seen corresponding path program 1 times [2021-12-16 03:50:28,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:50:28,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497831737] [2021-12-16 03:50:28,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:50:28,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:50:28,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:50:28,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-16 03:50:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:50:28,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-16 03:50:28,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:50:28,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-16 03:50:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:50:28,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:50:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:50:28,418 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-16 03:50:28,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:50:28,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497831737] [2021-12-16 03:50:28,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497831737] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:50:28,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:50:28,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:50:28,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704392700] [2021-12-16 03:50:28,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:50:28,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:50:28,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:50:28,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:50:28,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:50:28,420 INFO L87 Difference]: Start difference. First operand 20213 states and 30332 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-16 03:50:31,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:50:43,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:50:43,665 INFO L93 Difference]: Finished difference Result 22672 states and 33503 transitions. [2021-12-16 03:50:43,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 03:50:43,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 64 [2021-12-16 03:50:43,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:50:43,749 INFO L225 Difference]: With dead ends: 22672 [2021-12-16 03:50:43,750 INFO L226 Difference]: Without dead ends: 20736 [2021-12-16 03:50:43,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-16 03:50:43,770 INFO L933 BasicCegarLoop]: 3482 mSDtfsCounter, 2077 mSDsluCounter, 3749 mSDsCounter, 0 mSdLazyCounter, 4742 mSolverCounterSat, 1678 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2466 SdHoareTripleChecker+Valid, 7231 SdHoareTripleChecker+Invalid, 6420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1678 IncrementalHoareTripleChecker+Valid, 4742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2021-12-16 03:50:43,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2466 Valid, 7231 Invalid, 6420 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1678 Valid, 4742 Invalid, 0 Unknown, 0 Unchecked, 14.4s Time] [2021-12-16 03:50:43,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20736 states. [2021-12-16 03:50:44,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20736 to 20089. [2021-12-16 03:50:44,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20089 states, 14187 states have (on average 1.417283428490872) internal successors, (20107), 14560 states have internal predecessors, (20107), 5023 states have call successors, (5023), 880 states have call predecessors, (5023), 878 states have return successors, (5020), 4860 states have call predecessors, (5020), 5020 states have call successors, (5020) [2021-12-16 03:50:44,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20089 states to 20089 states and 30150 transitions. [2021-12-16 03:50:44,772 INFO L78 Accepts]: Start accepts. Automaton has 20089 states and 30150 transitions. Word has length 64 [2021-12-16 03:50:44,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:50:44,773 INFO L470 AbstractCegarLoop]: Abstraction has 20089 states and 30150 transitions. [2021-12-16 03:50:44,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-16 03:50:44,773 INFO L276 IsEmpty]: Start isEmpty. Operand 20089 states and 30150 transitions. [2021-12-16 03:50:44,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-16 03:50:44,804 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:50:44,804 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:50:44,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-16 03:50:44,805 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:50:44,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:50:44,805 INFO L85 PathProgramCache]: Analyzing trace with hash -561141611, now seen corresponding path program 1 times [2021-12-16 03:50:44,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:50:44,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899728142] [2021-12-16 03:50:44,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:50:44,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:50:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:50:44,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:50:44,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:50:44,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:50:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:50:44,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 03:50:44,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:50:44,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:50:44,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:50:44,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-16 03:50:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:50:45,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-16 03:50:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:50:45,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-16 03:50:45,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:50:45,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 03:50:45,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:50:45,047 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-16 03:50:45,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:50:45,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899728142] [2021-12-16 03:50:45,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899728142] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:50:45,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:50:45,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:50:45,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204561756] [2021-12-16 03:50:45,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:50:45,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:50:45,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:50:45,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:50:45,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:50:45,050 INFO L87 Difference]: Start difference. First operand 20089 states and 30150 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8)