./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 839c364b 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 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:35:49,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:35:49,229 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:35:49,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:35:49,292 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:35:49,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:35:49,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:35:49,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:35:49,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:35:49,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:35:49,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:35:49,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:35:49,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:35:49,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:35:49,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:35:49,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:35:49,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:35:49,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:35:49,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:35:49,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:35:49,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:35:49,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:35:49,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:35:49,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:35:49,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:35:49,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:35:49,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:35:49,326 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:35:49,327 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:35:49,327 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:35:49,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:35:49,328 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:35:49,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:35:49,330 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:35:49,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:35:49,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:35:49,332 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:35:49,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:35:49,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:35:49,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:35:49,334 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:35:49,335 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:35:49,353 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:35:49,353 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:35:49,353 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:35:49,353 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:35:49,354 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:35:49,354 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:35:49,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:35:49,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:35:49,355 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:35:49,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:35:49,355 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:35:49,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:35:49,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:35:49,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:35:49,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:35:49,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:35:49,356 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:35:49,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:35:49,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:35:49,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:35:49,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:35:49,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:35:49,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:35:49,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:35:49,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:35:49,358 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:35:49,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:35:49,358 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:35:49,358 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:35:49,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:35:49,358 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:35:49,359 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e37e45521ffb127b83b9baab443e42b7c078cf8a8451cb2a1813ac325e01717d [2021-12-14 17:35:49,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:35:49,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:35:49,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:35:49,552 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:35:49,552 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:35:49,553 INFO L432 ainManager$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 [2021-12-14 17:35:49,610 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5abaa1d3e/dff59bb143954fbf8adbae4de3d9d92d/FLAG4dd6fa798 [2021-12-14 17:35:50,218 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:35:50,219 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 [2021-12-14 17:35:50,258 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5abaa1d3e/dff59bb143954fbf8adbae4de3d9d92d/FLAG4dd6fa798 [2021-12-14 17:35:50,400 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5abaa1d3e/dff59bb143954fbf8adbae4de3d9d92d [2021-12-14 17:35:50,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:35:50,404 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:35:50,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:35:50,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:35:50,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:35:50,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:35:50" (1/1) ... [2021-12-14 17:35:50,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a9c3bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:35:50, skipping insertion in model container [2021-12-14 17:35:50,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:35:50" (1/1) ... [2021-12-14 17:35:50,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:35:50,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:35:52,979 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] [2021-12-14 17:35:53,146 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:35:53,174 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:35:53,463 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] [2021-12-14 17:35:53,483 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:35:53,672 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:35:53,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:35:53 WrapperNode [2021-12-14 17:35:53,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:35:53,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:35:53,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:35:53,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:35:53,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:35:53" (1/1) ... [2021-12-14 17:35:53,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:35:53" (1/1) ... [2021-12-14 17:35:53,993 INFO L137 Inliner]: procedures = 511, calls = 3849, calls flagged for inlining = 265, calls inlined = 264, statements flattened = 9561 [2021-12-14 17:35:53,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:35:53,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:35:53,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:35:53,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:35:54,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:35:53" (1/1) ... [2021-12-14 17:35:54,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:35:53" (1/1) ... [2021-12-14 17:35:54,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:35:53" (1/1) ... [2021-12-14 17:35:54,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:35:53" (1/1) ... [2021-12-14 17:35:54,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:35:53" (1/1) ... [2021-12-14 17:35:54,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:35:53" (1/1) ... [2021-12-14 17:35:54,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:35:53" (1/1) ... [2021-12-14 17:35:54,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:35:54,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:35:54,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:35:54,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:35:54,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:35:53" (1/1) ... [2021-12-14 17:35:54,333 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:35:54,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:35:54,349 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) [2021-12-14 17:35:54,404 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 [2021-12-14 17:35:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_ref [2021-12-14 17:35:54,426 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_ref [2021-12-14 17:35:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 17:35:54,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 17:35:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure ast_drm_freeze [2021-12-14 17:35:54,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_drm_freeze [2021-12-14 17:35:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_probe_single_connector_modes [2021-12-14 17:35:54,427 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_probe_single_connector_modes [2021-12-14 17:35:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_dpms [2021-12-14 17:35:54,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_dpms [2021-12-14 17:35:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_pin [2021-12-14 17:35:54,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_pin [2021-12-14 17:35:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_struct_mutex_of_drm_device [2021-12-14 17:35:54,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_struct_mutex_of_drm_device [2021-12-14 17:35:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure ast_read32 [2021-12-14 17:35:54,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_read32 [2021-12-14 17:35:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-14 17:35:54,428 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-14 17:35:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure cbr_dll2 [2021-12-14 17:35:54,428 INFO L138 BoogieDeclarations]: Found implementation of procedure cbr_dll2 [2021-12-14 17:35:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_fixup [2021-12-14 17:35:54,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_fixup [2021-12-14 17:35:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 17:35:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure moutdwm [2021-12-14 17:35:54,429 INFO L138 BoogieDeclarations]: Found implementation of procedure moutdwm [2021-12-14 17:35:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure ast_drm_thaw [2021-12-14 17:35:54,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_drm_thaw [2021-12-14 17:35:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure ast_dirty_update [2021-12-14 17:35:54,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_dirty_update [2021-12-14 17:35:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure ast_set_index_reg_mask [2021-12-14 17:35:54,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_set_index_reg_mask [2021-12-14 17:35:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kmap [2021-12-14 17:35:54,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kmap [2021-12-14 17:35:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_placement [2021-12-14 17:35:54,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_placement [2021-12-14 17:35:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_load_lut [2021-12-14 17:35:54,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_load_lut [2021-12-14 17:35:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 17:35:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kunmap [2021-12-14 17:35:54,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kunmap [2021-12-14 17:35:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_unref [2021-12-14 17:35:54,431 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_unref [2021-12-14 17:35:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 17:35:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure ast_user_framebuffer_destroy [2021-12-14 17:35:54,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_user_framebuffer_destroy [2021-12-14 17:35:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_disable [2021-12-14 17:35:54,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_disable [2021-12-14 17:35:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:35:54,432 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_set_base [2021-12-14 17:35:54,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_set_base [2021-12-14 17:35:54,432 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-12-14 17:35:54,432 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-12-14 17:35:54,432 INFO L130 BoogieDeclarations]: Found specification of procedure mindwm [2021-12-14 17:35:54,432 INFO L138 BoogieDeclarations]: Found implementation of procedure mindwm [2021-12-14 17:35:54,433 INFO L130 BoogieDeclarations]: Found specification of procedure ast_io_read8 [2021-12-14 17:35:54,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_io_read8 [2021-12-14 17:35:54,433 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-14 17:35:54,434 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-14 17:35:54,434 INFO L130 BoogieDeclarations]: Found specification of procedure ast_user_framebuffer_create_handle [2021-12-14 17:35:54,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_user_framebuffer_create_handle [2021-12-14 17:35:54,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:35:54,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:35:54,435 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_gamma_set [2021-12-14 17:35:54,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_gamma_set [2021-12-14 17:35:54,435 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-14 17:35:54,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-14 17:35:54,435 INFO L130 BoogieDeclarations]: Found specification of procedure ast_fbdev_set_suspend [2021-12-14 17:35:54,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_fbdev_set_suspend [2021-12-14 17:35:54,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:35:54,435 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 17:35:54,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 17:35:54,436 INFO L130 BoogieDeclarations]: Found specification of procedure ast_framebuffer_init [2021-12-14 17:35:54,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_framebuffer_init [2021-12-14 17:35:54,436 INFO L130 BoogieDeclarations]: Found specification of procedure ast_cursor_set [2021-12-14 17:35:54,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_cursor_set [2021-12-14 17:35:54,436 INFO L130 BoogieDeclarations]: Found specification of procedure ast_open_key [2021-12-14 17:35:54,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_open_key [2021-12-14 17:35:54,437 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_validate [2021-12-14 17:35:54,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_validate [2021-12-14 17:35:54,437 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_test_burst2 [2021-12-14 17:35:54,437 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_test_burst2 [2021-12-14 17:35:54,437 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_unreserve [2021-12-14 17:35:54,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_unreserve [2021-12-14 17:35:54,437 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-14 17:35:54,438 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-14 17:35:54,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:35:54,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:35:54,438 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-14 17:35:54,438 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-14 17:35:54,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 17:35:54,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 17:35:54,439 INFO L130 BoogieDeclarations]: Found specification of procedure ast_connector_detect [2021-12-14 17:35:54,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_connector_detect [2021-12-14 17:35:54,439 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_prepare [2021-12-14 17:35:54,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_prepare [2021-12-14 17:35:54,440 INFO L130 BoogieDeclarations]: Found specification of procedure ast_get_index_reg_mask [2021-12-14 17:35:54,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_get_index_reg_mask [2021-12-14 17:35:54,440 INFO L130 BoogieDeclarations]: Found specification of procedure ast_gem_create [2021-12-14 17:35:54,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_gem_create [2021-12-14 17:35:54,440 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_prepare [2021-12-14 17:35:54,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_prepare [2021-12-14 17:35:54,441 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 17:35:54,441 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 17:35:54,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 17:35:54,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 17:35:54,441 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_reserve [2021-12-14 17:35:54,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_reserve [2021-12-14 17:35:54,441 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked [2021-12-14 17:35:54,441 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked [2021-12-14 17:35:54,442 INFO L130 BoogieDeclarations]: Found specification of procedure ast_mmap [2021-12-14 17:35:54,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_mmap [2021-12-14 17:35:54,442 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-14 17:35:54,443 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-14 17:35:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-14 17:35:54,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-14 17:35:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 17:35:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_free [2021-12-14 17:35:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_release [2021-12-14 17:35:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_struct_mutex_of_drm_device [2021-12-14 17:35:54,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_struct_mutex_of_drm_device [2021-12-14 17:35:54,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 17:35:54,446 INFO L130 BoogieDeclarations]: Found specification of procedure ast_connector_destroy [2021-12-14 17:35:54,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_connector_destroy [2021-12-14 17:35:54,447 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_commit [2021-12-14 17:35:54,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_commit [2021-12-14 17:35:54,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:35:54,448 INFO L130 BoogieDeclarations]: Found specification of procedure ast_pm_resume [2021-12-14 17:35:54,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_pm_resume [2021-12-14 17:35:54,450 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-14 17:35:54,450 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-14 17:35:54,450 INFO L130 BoogieDeclarations]: Found specification of procedure ast_io_write8 [2021-12-14 17:35:54,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_io_write8 [2021-12-14 17:35:54,450 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_kmap_obj_virtual [2021-12-14 17:35:54,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_kmap_obj_virtual [2021-12-14 17:35:54,450 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_destroy [2021-12-14 17:35:54,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_destroy [2021-12-14 17:35:54,451 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_gpu_offset [2021-12-14 17:35:54,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_gpu_offset [2021-12-14 17:35:54,451 INFO L130 BoogieDeclarations]: Found specification of procedure ast_write32 [2021-12-14 17:35:54,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_write32 [2021-12-14 17:35:54,451 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_reset [2021-12-14 17:35:54,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_reset [2021-12-14 17:35:54,451 INFO L130 BoogieDeclarations]: Found specification of procedure ast_gem_free_object [2021-12-14 17:35:54,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_gem_free_object [2021-12-14 17:35:54,451 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked___0 [2021-12-14 17:35:54,452 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked___0 [2021-12-14 17:35:54,452 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_backend_destroy [2021-12-14 17:35:54,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_backend_destroy [2021-12-14 17:35:54,452 INFO L130 BoogieDeclarations]: Found specification of procedure ast_pci_remove [2021-12-14 17:35:54,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_pci_remove [2021-12-14 17:35:54,452 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_connector_dpms [2021-12-14 17:35:54,452 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_connector_dpms [2021-12-14 17:35:54,452 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_set [2021-12-14 17:35:54,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_set [2021-12-14 17:35:54,452 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_test_single2 [2021-12-14 17:35:54,453 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_test_single2 [2021-12-14 17:35:54,453 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 17:35:54,453 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 17:35:54,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:35:54,453 INFO L130 BoogieDeclarations]: Found specification of procedure ast_set_index_reg [2021-12-14 17:35:54,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_set_index_reg [2021-12-14 17:35:54,453 INFO L130 BoogieDeclarations]: Found specification of procedure cbrdlli_ast2150 [2021-12-14 17:35:54,453 INFO L138 BoogieDeclarations]: Found implementation of procedure cbrdlli_ast2150 [2021-12-14 17:35:54,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 17:35:54,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 17:35:54,453 INFO L130 BoogieDeclarations]: Found specification of procedure drm_fasync [2021-12-14 17:35:54,454 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_fasync [2021-12-14 17:35:54,454 INFO L130 BoogieDeclarations]: Found specification of procedure drm_framebuffer_cleanup [2021-12-14 17:35:54,454 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_framebuffer_cleanup [2021-12-14 17:35:54,454 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_commit [2021-12-14 17:35:54,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_commit [2021-12-14 17:35:54,454 INFO L130 BoogieDeclarations]: Found specification of procedure drm_crtc_helper_set_config [2021-12-14 17:35:54,454 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_crtc_helper_set_config [2021-12-14 17:35:54,454 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2021-12-14 17:35:54,454 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2021-12-14 17:35:54,454 INFO L130 BoogieDeclarations]: Found specification of procedure ast_cursor_move [2021-12-14 17:35:54,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_cursor_move [2021-12-14 17:35:54,455 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2021-12-14 17:35:54,455 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2021-12-14 17:35:54,455 INFO L130 BoogieDeclarations]: Found specification of procedure drm_poll [2021-12-14 17:35:54,455 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_poll [2021-12-14 17:35:54,455 INFO L130 BoogieDeclarations]: Found specification of procedure drm_mode_connector_update_edid_property [2021-12-14 17:35:54,455 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_mode_connector_update_edid_property [2021-12-14 17:35:54,455 INFO L130 BoogieDeclarations]: Found specification of procedure cbr_scan2 [2021-12-14 17:35:54,455 INFO L138 BoogieDeclarations]: Found implementation of procedure cbr_scan2 [2021-12-14 17:35:54,456 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-14 17:35:54,456 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-14 17:35:54,456 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_tt_unpopulate [2021-12-14 17:35:54,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_tt_unpopulate [2021-12-14 17:35:54,456 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_lookup [2021-12-14 17:35:54,456 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_lookup [2021-12-14 17:35:54,456 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_destroy [2021-12-14 17:35:54,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_destroy [2021-12-14 17:35:54,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:35:55,123 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:35:55,128 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:36:05,332 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; [2021-12-14 17:36:05,387 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:36:05,408 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:36:05,409 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 17:36:05,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:36:05 BoogieIcfgContainer [2021-12-14 17:36:05,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:36:05,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:36:05,414 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:36:05,416 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:36:05,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:35:50" (1/3) ... [2021-12-14 17:36:05,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b39f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:36:05, skipping insertion in model container [2021-12-14 17:36:05,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:35:53" (2/3) ... [2021-12-14 17:36:05,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b39f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:36:05, skipping insertion in model container [2021-12-14 17:36:05,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:36:05" (3/3) ... [2021-12-14 17:36:05,419 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i [2021-12-14 17:36:05,424 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:36:05,425 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:36:05,478 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:36:05,485 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 [2021-12-14 17:36:05,485 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:36:05,537 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) [2021-12-14 17:36:05,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-14 17:36:05,543 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:36:05,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:36:05,544 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:36:05,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:36:05,547 INFO L85 PathProgramCache]: Analyzing trace with hash 337264067, now seen corresponding path program 1 times [2021-12-14 17:36:05,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:36:05,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120608868] [2021-12-14 17:36:05,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:36:05,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:36:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:36:06,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:36:06,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:36:06,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120608868] [2021-12-14 17:36:06,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120608868] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:36:06,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:36:06,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 17:36:06,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485663982] [2021-12-14 17:36:06,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:36:06,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 17:36:06,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:36:06,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 17:36:06,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:36:06,042 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) [2021-12-14 17:36:06,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:36:06,329 INFO L93 Difference]: Finished difference Result 7661 states and 11847 transitions. [2021-12-14 17:36:06,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 17:36:06,331 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 [2021-12-14 17:36:06,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:36:06,364 INFO L225 Difference]: With dead ends: 7661 [2021-12-14 17:36:06,364 INFO L226 Difference]: Without dead ends: 5092 [2021-12-14 17:36:06,381 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 [2021-12-14 17:36:06,383 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 [2021-12-14 17:36:06,384 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] [2021-12-14 17:36:06,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5092 states. [2021-12-14 17:36:06,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5092 to 5086. [2021-12-14 17:36:06,700 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) [2021-12-14 17:36:06,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5086 states to 5086 states and 7763 transitions. [2021-12-14 17:36:06,727 INFO L78 Accepts]: Start accepts. Automaton has 5086 states and 7763 transitions. Word has length 18 [2021-12-14 17:36:06,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:36:06,728 INFO L470 AbstractCegarLoop]: Abstraction has 5086 states and 7763 transitions. [2021-12-14 17:36:06,728 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) [2021-12-14 17:36:06,728 INFO L276 IsEmpty]: Start isEmpty. Operand 5086 states and 7763 transitions. [2021-12-14 17:36:06,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-14 17:36:06,731 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:36:06,731 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] [2021-12-14 17:36:06,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 17:36:06,732 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:36:06,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:36:06,733 INFO L85 PathProgramCache]: Analyzing trace with hash -427214803, now seen corresponding path program 1 times [2021-12-14 17:36:06,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:36:06,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708116843] [2021-12-14 17:36:06,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:36:06,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:36:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:36:06,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:36:06,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:36:06,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708116843] [2021-12-14 17:36:06,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708116843] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:36:06,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:36:06,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 17:36:06,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237285664] [2021-12-14 17:36:06,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:36:06,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 17:36:06,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:36:06,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 17:36:06,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:36:06,914 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) [2021-12-14 17:36:07,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:36:07,194 INFO L93 Difference]: Finished difference Result 14683 states and 22435 transitions. [2021-12-14 17:36:07,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 17:36:07,195 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 [2021-12-14 17:36:07,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:36:07,247 INFO L225 Difference]: With dead ends: 14683 [2021-12-14 17:36:07,247 INFO L226 Difference]: Without dead ends: 9600 [2021-12-14 17:36:07,274 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 [2021-12-14 17:36:07,275 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, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 17:36:07,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3468 Valid, 8574 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 17:36:07,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9600 states. [2021-12-14 17:36:07,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9600 to 9577. [2021-12-14 17:36:07,786 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) [2021-12-14 17:36:07,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9577 states to 9577 states and 14645 transitions. [2021-12-14 17:36:07,824 INFO L78 Accepts]: Start accepts. Automaton has 9577 states and 14645 transitions. Word has length 23 [2021-12-14 17:36:07,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:36:07,825 INFO L470 AbstractCegarLoop]: Abstraction has 9577 states and 14645 transitions. [2021-12-14 17:36:07,825 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) [2021-12-14 17:36:07,825 INFO L276 IsEmpty]: Start isEmpty. Operand 9577 states and 14645 transitions. [2021-12-14 17:36:07,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-14 17:36:07,827 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:36:07,827 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] [2021-12-14 17:36:07,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 17:36:07,827 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:36:07,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:36:07,828 INFO L85 PathProgramCache]: Analyzing trace with hash -541647884, now seen corresponding path program 1 times [2021-12-14 17:36:07,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:36:07,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796647348] [2021-12-14 17:36:07,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:36:07,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:36:07,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:36:07,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:36:07,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:36:07,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796647348] [2021-12-14 17:36:07,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796647348] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:36:07,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:36:07,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:36:07,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163572609] [2021-12-14 17:36:07,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:36:07,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:36:07,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:36:07,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:36:07,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:36:07,973 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) [2021-12-14 17:36:08,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:36:08,300 INFO L93 Difference]: Finished difference Result 19174 states and 29319 transitions. [2021-12-14 17:36:08,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:36:08,301 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 [2021-12-14 17:36:08,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:36:08,343 INFO L225 Difference]: With dead ends: 19174 [2021-12-14 17:36:08,344 INFO L226 Difference]: Without dead ends: 9600 [2021-12-14 17:36:08,370 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 [2021-12-14 17:36:08,371 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 [2021-12-14 17:36:08,371 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] [2021-12-14 17:36:08,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9600 states. [2021-12-14 17:36:08,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9600 to 9580. [2021-12-14 17:36:08,692 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) [2021-12-14 17:36:08,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9580 states to 9580 states and 14648 transitions. [2021-12-14 17:36:08,730 INFO L78 Accepts]: Start accepts. Automaton has 9580 states and 14648 transitions. Word has length 22 [2021-12-14 17:36:08,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:36:08,730 INFO L470 AbstractCegarLoop]: Abstraction has 9580 states and 14648 transitions. [2021-12-14 17:36:08,731 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) [2021-12-14 17:36:08,731 INFO L276 IsEmpty]: Start isEmpty. Operand 9580 states and 14648 transitions. [2021-12-14 17:36:08,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-14 17:36:08,732 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:36:08,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:36:08,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 17:36:08,732 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:36:08,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:36:08,733 INFO L85 PathProgramCache]: Analyzing trace with hash -484389582, now seen corresponding path program 1 times [2021-12-14 17:36:08,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:36:08,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897776774] [2021-12-14 17:36:08,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:36:08,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:36:08,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:36:08,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:36:08,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:36:08,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897776774] [2021-12-14 17:36:08,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897776774] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:36:08,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:36:08,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 17:36:08,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511082904] [2021-12-14 17:36:08,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:36:08,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 17:36:08,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:36:08,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 17:36:08,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:36:08,938 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) [2021-12-14 17:36:09,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:36:09,135 INFO L93 Difference]: Finished difference Result 9582 states and 14649 transitions. [2021-12-14 17:36:09,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 17:36:09,135 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 [2021-12-14 17:36:09,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:36:09,173 INFO L225 Difference]: With dead ends: 9582 [2021-12-14 17:36:09,174 INFO L226 Difference]: Without dead ends: 9579 [2021-12-14 17:36:09,181 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 [2021-12-14 17:36:09,182 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 [2021-12-14 17:36:09,182 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] [2021-12-14 17:36:09,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9579 states. [2021-12-14 17:36:09,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9579 to 9579. [2021-12-14 17:36:09,551 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) [2021-12-14 17:36:09,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9579 states to 9579 states and 14646 transitions. [2021-12-14 17:36:09,585 INFO L78 Accepts]: Start accepts. Automaton has 9579 states and 14646 transitions. Word has length 22 [2021-12-14 17:36:09,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:36:09,585 INFO L470 AbstractCegarLoop]: Abstraction has 9579 states and 14646 transitions. [2021-12-14 17:36:09,586 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) [2021-12-14 17:36:09,586 INFO L276 IsEmpty]: Start isEmpty. Operand 9579 states and 14646 transitions. [2021-12-14 17:36:09,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-14 17:36:09,588 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:36:09,588 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] [2021-12-14 17:36:09,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 17:36:09,588 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:36:09,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:36:09,589 INFO L85 PathProgramCache]: Analyzing trace with hash -2132288794, now seen corresponding path program 1 times [2021-12-14 17:36:09,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:36:09,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720668210] [2021-12-14 17:36:09,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:36:09,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:36:09,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:36:09,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:36:09,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:36:09,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720668210] [2021-12-14 17:36:09,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720668210] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:36:09,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:36:09,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 17:36:09,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340769994] [2021-12-14 17:36:09,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:36:09,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 17:36:09,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:36:09,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 17:36:09,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:36:09,758 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) [2021-12-14 17:36:09,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:36:09,988 INFO L93 Difference]: Finished difference Result 9581 states and 14647 transitions. [2021-12-14 17:36:09,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 17:36:09,989 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 [2021-12-14 17:36:09,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:36:10,024 INFO L225 Difference]: With dead ends: 9581 [2021-12-14 17:36:10,024 INFO L226 Difference]: Without dead ends: 9578 [2021-12-14 17:36:10,031 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 [2021-12-14 17:36:10,033 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 [2021-12-14 17:36:10,033 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] [2021-12-14 17:36:10,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9578 states. [2021-12-14 17:36:10,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9578 to 9578. [2021-12-14 17:36:10,372 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) [2021-12-14 17:36:10,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9578 states to 9578 states and 14644 transitions. [2021-12-14 17:36:10,405 INFO L78 Accepts]: Start accepts. Automaton has 9578 states and 14644 transitions. Word has length 23 [2021-12-14 17:36:10,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:36:10,405 INFO L470 AbstractCegarLoop]: Abstraction has 9578 states and 14644 transitions. [2021-12-14 17:36:10,405 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) [2021-12-14 17:36:10,405 INFO L276 IsEmpty]: Start isEmpty. Operand 9578 states and 14644 transitions. [2021-12-14 17:36:10,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-14 17:36:10,407 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:36:10,407 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] [2021-12-14 17:36:10,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 17:36:10,407 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:36:10,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:36:10,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1677551947, now seen corresponding path program 1 times [2021-12-14 17:36:10,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:36:10,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273429535] [2021-12-14 17:36:10,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:36:10,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:36:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:36:10,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:36:10,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:36:10,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273429535] [2021-12-14 17:36:10,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273429535] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:36:10,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:36:10,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 17:36:10,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009719496] [2021-12-14 17:36:10,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:36:10,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 17:36:10,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:36:10,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 17:36:10,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:36:10,595 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) [2021-12-14 17:36:10,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:36:10,770 INFO L93 Difference]: Finished difference Result 9580 states and 14645 transitions. [2021-12-14 17:36:10,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 17:36:10,770 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 [2021-12-14 17:36:10,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:36:10,802 INFO L225 Difference]: With dead ends: 9580 [2021-12-14 17:36:10,802 INFO L226 Difference]: Without dead ends: 9577 [2021-12-14 17:36:10,808 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 [2021-12-14 17:36:10,810 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 [2021-12-14 17:36:10,812 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] [2021-12-14 17:36:10,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9577 states. [2021-12-14 17:36:11,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9577 to 9577. [2021-12-14 17:36:11,149 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) [2021-12-14 17:36:11,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9577 states to 9577 states and 14642 transitions. [2021-12-14 17:36:11,175 INFO L78 Accepts]: Start accepts. Automaton has 9577 states and 14642 transitions. Word has length 24 [2021-12-14 17:36:11,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:36:11,175 INFO L470 AbstractCegarLoop]: Abstraction has 9577 states and 14642 transitions. [2021-12-14 17:36:11,175 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) [2021-12-14 17:36:11,176 INFO L276 IsEmpty]: Start isEmpty. Operand 9577 states and 14642 transitions. [2021-12-14 17:36:11,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-14 17:36:11,177 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:36:11,177 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] [2021-12-14 17:36:11,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 17:36:11,177 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:36:11,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:36:11,178 INFO L85 PathProgramCache]: Analyzing trace with hash -465606711, now seen corresponding path program 1 times [2021-12-14 17:36:11,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:36:11,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112014760] [2021-12-14 17:36:11,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:36:11,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:36:11,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:36:11,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:36:11,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:36:11,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112014760] [2021-12-14 17:36:11,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112014760] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:36:11,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:36:11,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 17:36:11,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889381723] [2021-12-14 17:36:11,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:36:11,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 17:36:11,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:36:11,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 17:36:11,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:36:11,307 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) [2021-12-14 17:36:11,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:36:11,481 INFO L93 Difference]: Finished difference Result 9579 states and 14643 transitions. [2021-12-14 17:36:11,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 17:36:11,481 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 [2021-12-14 17:36:11,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:36:11,513 INFO L225 Difference]: With dead ends: 9579 [2021-12-14 17:36:11,514 INFO L226 Difference]: Without dead ends: 9576 [2021-12-14 17:36:11,521 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 [2021-12-14 17:36:11,523 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, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 17:36:11,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3873 Valid, 3894 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 17:36:11,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9576 states. [2021-12-14 17:36:11,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9576 to 9576. [2021-12-14 17:36:11,929 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) [2021-12-14 17:36:11,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9576 states to 9576 states and 14640 transitions. [2021-12-14 17:36:11,957 INFO L78 Accepts]: Start accepts. Automaton has 9576 states and 14640 transitions. Word has length 25 [2021-12-14 17:36:11,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:36:11,957 INFO L470 AbstractCegarLoop]: Abstraction has 9576 states and 14640 transitions. [2021-12-14 17:36:11,957 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) [2021-12-14 17:36:11,957 INFO L276 IsEmpty]: Start isEmpty. Operand 9576 states and 14640 transitions. [2021-12-14 17:36:11,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-14 17:36:11,960 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:36:11,960 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] [2021-12-14 17:36:11,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 17:36:11,961 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:36:11,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:36:11,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1488446885, now seen corresponding path program 1 times [2021-12-14 17:36:11,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:36:11,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820046910] [2021-12-14 17:36:11,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:36:11,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:36:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:36:12,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:36:12,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:36:12,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820046910] [2021-12-14 17:36:12,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820046910] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:36:12,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:36:12,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 17:36:12,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155103272] [2021-12-14 17:36:12,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:36:12,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 17:36:12,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:36:12,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 17:36:12,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:36:12,107 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) [2021-12-14 17:36:12,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:36:12,531 INFO L93 Difference]: Finished difference Result 28641 states and 43792 transitions. [2021-12-14 17:36:12,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 17:36:12,531 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 [2021-12-14 17:36:12,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:36:12,601 INFO L225 Difference]: With dead ends: 28641 [2021-12-14 17:36:12,601 INFO L226 Difference]: Without dead ends: 19068 [2021-12-14 17:36:12,641 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 [2021-12-14 17:36:12,642 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 [2021-12-14 17:36:12,642 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] [2021-12-14 17:36:12,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19068 states. [2021-12-14 17:36:13,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19068 to 19046. [2021-12-14 17:36:13,554 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) [2021-12-14 17:36:13,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19046 states to 19046 states and 29128 transitions. [2021-12-14 17:36:13,622 INFO L78 Accepts]: Start accepts. Automaton has 19046 states and 29128 transitions. Word has length 29 [2021-12-14 17:36:13,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:36:13,623 INFO L470 AbstractCegarLoop]: Abstraction has 19046 states and 29128 transitions. [2021-12-14 17:36:13,623 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) [2021-12-14 17:36:13,623 INFO L276 IsEmpty]: Start isEmpty. Operand 19046 states and 29128 transitions. [2021-12-14 17:36:13,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-14 17:36:13,624 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:36:13,625 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] [2021-12-14 17:36:13,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-14 17:36:13,625 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:36:13,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:36:13,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1550005192, now seen corresponding path program 1 times [2021-12-14 17:36:13,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:36:13,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623491015] [2021-12-14 17:36:13,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:36:13,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:36:13,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:36:13,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:36:13,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:36:13,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623491015] [2021-12-14 17:36:13,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623491015] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:36:13,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:36:13,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 17:36:13,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324594724] [2021-12-14 17:36:13,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:36:13,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 17:36:13,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:36:13,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 17:36:13,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:36:13,774 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) [2021-12-14 17:36:14,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:36:14,291 INFO L93 Difference]: Finished difference Result 19074 states and 29146 transitions. [2021-12-14 17:36:14,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 17:36:14,291 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 [2021-12-14 17:36:14,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:36:14,363 INFO L225 Difference]: With dead ends: 19074 [2021-12-14 17:36:14,363 INFO L226 Difference]: Without dead ends: 19070 [2021-12-14 17:36:14,378 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 [2021-12-14 17:36:14,380 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 [2021-12-14 17:36:14,380 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] [2021-12-14 17:36:14,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19070 states. [2021-12-14 17:36:15,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19070 to 19068. [2021-12-14 17:36:15,225 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) [2021-12-14 17:36:15,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19068 states to 19068 states and 29133 transitions. [2021-12-14 17:36:15,285 INFO L78 Accepts]: Start accepts. Automaton has 19068 states and 29133 transitions. Word has length 26 [2021-12-14 17:36:15,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:36:15,285 INFO L470 AbstractCegarLoop]: Abstraction has 19068 states and 29133 transitions. [2021-12-14 17:36:15,285 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) [2021-12-14 17:36:15,285 INFO L276 IsEmpty]: Start isEmpty. Operand 19068 states and 29133 transitions. [2021-12-14 17:36:15,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-14 17:36:15,287 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:36:15,287 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] [2021-12-14 17:36:15,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-14 17:36:15,288 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:36:15,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:36:15,288 INFO L85 PathProgramCache]: Analyzing trace with hash -806614868, now seen corresponding path program 1 times [2021-12-14 17:36:15,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:36:15,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349779895] [2021-12-14 17:36:15,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:36:15,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:36:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:36:15,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:36:15,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:36:15,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349779895] [2021-12-14 17:36:15,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349779895] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:36:15,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:36:15,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 17:36:15,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291023502] [2021-12-14 17:36:15,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:36:15,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 17:36:15,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:36:15,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 17:36:15,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:36:15,419 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) [2021-12-14 17:36:15,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:36:15,950 INFO L93 Difference]: Finished difference Result 39355 states and 59716 transitions. [2021-12-14 17:36:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 17:36:15,950 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 [2021-12-14 17:36:15,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:36:16,038 INFO L225 Difference]: With dead ends: 39355 [2021-12-14 17:36:16,038 INFO L226 Difference]: Without dead ends: 20290 [2021-12-14 17:36:16,106 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 [2021-12-14 17:36:16,107 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 [2021-12-14 17:36:16,108 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] [2021-12-14 17:36:16,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20290 states. [2021-12-14 17:36:16,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20290 to 20227. [2021-12-14 17:36:16,895 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) [2021-12-14 17:36:16,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20227 states to 20227 states and 30363 transitions. [2021-12-14 17:36:16,966 INFO L78 Accepts]: Start accepts. Automaton has 20227 states and 30363 transitions. Word has length 27 [2021-12-14 17:36:16,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:36:16,966 INFO L470 AbstractCegarLoop]: Abstraction has 20227 states and 30363 transitions. [2021-12-14 17:36:16,966 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) [2021-12-14 17:36:16,966 INFO L276 IsEmpty]: Start isEmpty. Operand 20227 states and 30363 transitions. [2021-12-14 17:36:16,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-14 17:36:16,969 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:36:16,969 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] [2021-12-14 17:36:16,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-14 17:36:16,970 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:36:16,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:36:16,970 INFO L85 PathProgramCache]: Analyzing trace with hash 763653563, now seen corresponding path program 1 times [2021-12-14 17:36:16,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:36:16,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258401534] [2021-12-14 17:36:16,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:36:16,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:36:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:36:17,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:36:17,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:36:17,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258401534] [2021-12-14 17:36:17,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258401534] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:36:17,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:36:17,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 17:36:17,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106710331] [2021-12-14 17:36:17,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:36:17,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 17:36:17,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:36:17,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 17:36:17,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:36:17,126 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) [2021-12-14 17:36:17,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:36:17,727 INFO L93 Difference]: Finished difference Result 20229 states and 30364 transitions. [2021-12-14 17:36:17,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 17:36:17,732 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 [2021-12-14 17:36:17,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:36:17,809 INFO L225 Difference]: With dead ends: 20229 [2021-12-14 17:36:17,810 INFO L226 Difference]: Without dead ends: 20213 [2021-12-14 17:36:17,824 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 [2021-12-14 17:36:17,825 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 [2021-12-14 17:36:17,825 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] [2021-12-14 17:36:17,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20213 states. [2021-12-14 17:36:18,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20213 to 20213. [2021-12-14 17:36:18,752 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) [2021-12-14 17:36:18,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20213 states to 20213 states and 30332 transitions. [2021-12-14 17:36:18,829 INFO L78 Accepts]: Start accepts. Automaton has 20213 states and 30332 transitions. Word has length 28 [2021-12-14 17:36:18,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:36:18,829 INFO L470 AbstractCegarLoop]: Abstraction has 20213 states and 30332 transitions. [2021-12-14 17:36:18,830 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) [2021-12-14 17:36:18,830 INFO L276 IsEmpty]: Start isEmpty. Operand 20213 states and 30332 transitions. [2021-12-14 17:36:18,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-14 17:36:18,848 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:36:18,848 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] [2021-12-14 17:36:18,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-14 17:36:18,848 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:36:18,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:36:18,849 INFO L85 PathProgramCache]: Analyzing trace with hash 929900714, now seen corresponding path program 1 times [2021-12-14 17:36:18,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:36:18,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713311065] [2021-12-14 17:36:18,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:36:18,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:36:18,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:36:19,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 17:36:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:36:19,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-14 17:36:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:36:19,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 17:36:19,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:36:19,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:36:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:36:19,095 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-14 17:36:19,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:36:19,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713311065] [2021-12-14 17:36:19,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713311065] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:36:19,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:36:19,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:36:19,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725418051] [2021-12-14 17:36:19,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:36:19,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:36:19,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:36:19,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:36:19,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:36:19,097 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) [2021-12-14 17:36:21,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-14 17:36:37,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:36:37,753 INFO L93 Difference]: Finished difference Result 22672 states and 33503 transitions. [2021-12-14 17:36:37,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 17:36:37,753 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 [2021-12-14 17:36:37,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:36:37,830 INFO L225 Difference]: With dead ends: 22672 [2021-12-14 17:36:37,830 INFO L226 Difference]: Without dead ends: 20736 [2021-12-14 17:36:37,849 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 [2021-12-14 17:36:37,849 INFO L933 BasicCegarLoop]: 3482 mSDtfsCounter, 2074 mSDsluCounter, 3749 mSDsCounter, 0 mSdLazyCounter, 4737 mSolverCounterSat, 1676 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2464 SdHoareTripleChecker+Valid, 7231 SdHoareTripleChecker+Invalid, 6414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1676 IncrementalHoareTripleChecker+Valid, 4737 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2021-12-14 17:36:37,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2464 Valid, 7231 Invalid, 6414 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1676 Valid, 4737 Invalid, 1 Unknown, 0 Unchecked, 17.9s Time] [2021-12-14 17:36:37,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20736 states. [2021-12-14 17:36:38,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20736 to 20089. [2021-12-14 17:36:38,664 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) [2021-12-14 17:36:38,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20089 states to 20089 states and 30150 transitions. [2021-12-14 17:36:38,729 INFO L78 Accepts]: Start accepts. Automaton has 20089 states and 30150 transitions. Word has length 64 [2021-12-14 17:36:38,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:36:38,730 INFO L470 AbstractCegarLoop]: Abstraction has 20089 states and 30150 transitions. [2021-12-14 17:36:38,730 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) [2021-12-14 17:36:38,730 INFO L276 IsEmpty]: Start isEmpty. Operand 20089 states and 30150 transitions. [2021-12-14 17:36:38,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-14 17:36:38,756 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:36:38,756 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] [2021-12-14 17:36:38,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-14 17:36:38,756 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:36:38,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:36:38,757 INFO L85 PathProgramCache]: Analyzing trace with hash -561141611, now seen corresponding path program 1 times [2021-12-14 17:36:38,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:36:38,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314627968] [2021-12-14 17:36:38,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:36:38,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:36:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:36:38,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:36:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:36:38,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:36:38,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:36:38,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:36:38,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:36:38,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:36:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:36:38,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-14 17:36:38,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:36:38,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-14 17:36:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:36:38,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 17:36:38,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:36:38,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 17:36:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:36:38,981 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-14 17:36:38,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:36:38,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314627968] [2021-12-14 17:36:38,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314627968] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:36:38,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:36:38,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:36:38,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700399231] [2021-12-14 17:36:38,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:36:38,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:36:38,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:36:38,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:36:38,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:36:38,983 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) [2021-12-14 17:36:40,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []