./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4ee267b-1-130_7a-drivers--hwmon--ibmaem.ko-entry_point_ldv-val-v0.8.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-validator-v0.8/linux-stable-4ee267b-1-130_7a-drivers--hwmon--ibmaem.ko-entry_point_ldv-val-v0.8.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 aa00a102435cd9be2574d2e777aad2e91126f080f8422a74b94328a4b8d020d8 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:55:15,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:55:15,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:55:15,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:55:15,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:55:15,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:55:15,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:55:15,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:55:15,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:55:15,353 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:55:15,354 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:55:15,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:55:15,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:55:15,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:55:15,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:55:15,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:55:15,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:55:15,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:55:15,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:55:15,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:55:15,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:55:15,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:55:15,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:55:15,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:55:15,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:55:15,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:55:15,378 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:55:15,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:55:15,379 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:55:15,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:55:15,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:55:15,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:55:15,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:55:15,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:55:15,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:55:15,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:55:15,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:55:15,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:55:15,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:55:15,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:55:15,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:55:15,386 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:55:15,409 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:55:15,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:55:15,409 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:55:15,410 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:55:15,410 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:55:15,410 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:55:15,411 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:55:15,411 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:55:15,411 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:55:15,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:55:15,412 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:55:15,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:55:15,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:55:15,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:55:15,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:55:15,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:55:15,413 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:55:15,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:55:15,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:55:15,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:55:15,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:55:15,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:55:15,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:55:15,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:55:15,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:55:15,414 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:55:15,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:55:15,414 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:55:15,414 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:55:15,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:55:15,414 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:55:15,415 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa00a102435cd9be2574d2e777aad2e91126f080f8422a74b94328a4b8d020d8 [2021-12-14 17:55:15,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:55:15,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:55:15,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:55:15,632 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:55:15,633 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:55:15,634 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4ee267b-1-130_7a-drivers--hwmon--ibmaem.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-14 17:55:15,674 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7a7d30c9/7289298d3d7a41bc879897199eb333a0/FLAGf6b72050d [2021-12-14 17:55:16,135 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:55:16,135 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4ee267b-1-130_7a-drivers--hwmon--ibmaem.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-14 17:55:16,166 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7a7d30c9/7289298d3d7a41bc879897199eb333a0/FLAGf6b72050d [2021-12-14 17:55:16,401 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7a7d30c9/7289298d3d7a41bc879897199eb333a0 [2021-12-14 17:55:16,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:55:16,404 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:55:16,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:55:16,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:55:16,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:55:16,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:55:16" (1/1) ... [2021-12-14 17:55:16,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@695afa4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:55:16, skipping insertion in model container [2021-12-14 17:55:16,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:55:16" (1/1) ... [2021-12-14 17:55:16,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:55:16,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:55:17,012 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-validator-v0.8/linux-stable-4ee267b-1-130_7a-drivers--hwmon--ibmaem.ko-entry_point_ldv-val-v0.8.cil.out.i[120657,120670] [2021-12-14 17:55:17,027 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:55:17,048 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:55:17,197 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-validator-v0.8/linux-stable-4ee267b-1-130_7a-drivers--hwmon--ibmaem.ko-entry_point_ldv-val-v0.8.cil.out.i[120657,120670] [2021-12-14 17:55:17,205 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:55:17,277 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:55:17,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:55:17 WrapperNode [2021-12-14 17:55:17,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:55:17,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:55:17,280 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:55:17,280 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:55:17,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:55:17" (1/1) ... [2021-12-14 17:55:17,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:55:17" (1/1) ... [2021-12-14 17:55:17,409 INFO L137 Inliner]: procedures = 150, calls = 816, calls flagged for inlining = 62, calls inlined = 44, statements flattened = 1705 [2021-12-14 17:55:17,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:55:17,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:55:17,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:55:17,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:55:17,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:55:17" (1/1) ... [2021-12-14 17:55:17,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:55:17" (1/1) ... [2021-12-14 17:55:17,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:55:17" (1/1) ... [2021-12-14 17:55:17,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:55:17" (1/1) ... [2021-12-14 17:55:17,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:55:17" (1/1) ... [2021-12-14 17:55:17,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:55:17" (1/1) ... [2021-12-14 17:55:17,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:55:17" (1/1) ... [2021-12-14 17:55:17,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:55:17,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:55:17,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:55:17,520 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:55:17,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:55:17" (1/1) ... [2021-12-14 17:55:17,525 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:55:17,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:55:17,541 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 17:55:17,564 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 17:55:17,570 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-14 17:55:17,570 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-14 17:55:17,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 17:55:17,571 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add [2021-12-14 17:55:17,571 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add [2021-12-14 17:55:17,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 17:55:17,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 17:55:17,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 17:55:17,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 17:55:17,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:55:17,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 17:55:17,572 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 17:55:17,572 INFO L130 BoogieDeclarations]: Found specification of procedure aem_init_ipmi_data [2021-12-14 17:55:17,572 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_init_ipmi_data [2021-12-14 17:55:17,572 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2021-12-14 17:55:17,573 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2021-12-14 17:55:17,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 17:55:17,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 17:55:17,573 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 17:55:17,573 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 17:55:17,573 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-14 17:55:17,573 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-14 17:55:17,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:55:17,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 17:55:17,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 17:55:17,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-14 17:55:17,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-14 17:55:17,574 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 17:55:17,574 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 17:55:17,574 INFO L130 BoogieDeclarations]: Found specification of procedure aem_delete [2021-12-14 17:55:17,574 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_delete [2021-12-14 17:55:17,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:55:17,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-14 17:55:17,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-14 17:55:17,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file [2021-12-14 17:55:17,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file [2021-12-14 17:55:17,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:55:17,575 INFO L130 BoogieDeclarations]: Found specification of procedure aem_idr_get [2021-12-14 17:55:17,576 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_idr_get [2021-12-14 17:55:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_destroy_user [2021-12-14 17:55:17,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_destroy_user [2021-12-14 17:55:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-14 17:55:17,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-14 17:55:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:55:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 17:55:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-14 17:55:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 17:55:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_register [2021-12-14 17:55:17,577 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_register [2021-12-14 17:55:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 17:55:17,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 17:55:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2021-12-14 17:55:17,577 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2021-12-14 17:55:17,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kzalloc_6 [2021-12-14 17:55:17,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kzalloc_6 [2021-12-14 17:55:17,578 INFO L130 BoogieDeclarations]: Found specification of procedure aem_send_message [2021-12-14 17:55:17,578 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_send_message [2021-12-14 17:55:17,579 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2021-12-14 17:55:17,579 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2021-12-14 17:55:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure aem_register_sensors [2021-12-14 17:55:17,580 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_register_sensors [2021-12-14 17:55:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-12-14 17:55:17,580 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-12-14 17:55:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 17:55:17,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:55:17,581 INFO L130 BoogieDeclarations]: Found specification of procedure aem_idr_put [2021-12-14 17:55:17,581 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_idr_put [2021-12-14 17:55:17,581 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_unregister [2021-12-14 17:55:17,581 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_unregister [2021-12-14 17:55:17,581 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-14 17:55:17,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-14 17:55:17,581 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-14 17:55:17,581 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-14 17:55:17,582 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-14 17:55:17,582 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-14 17:55:17,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:55:17,582 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2021-12-14 17:55:17,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2021-12-14 17:55:17,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 17:55:17,583 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2021-12-14 17:55:17,583 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2021-12-14 17:55:17,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:55:17,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:55:17,583 INFO L130 BoogieDeclarations]: Found specification of procedure aem_remove_sensors [2021-12-14 17:55:17,583 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_remove_sensors [2021-12-14 17:55:17,583 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_alloc [2021-12-14 17:55:17,584 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_alloc [2021-12-14 17:55:17,584 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-14 17:55:17,584 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-14 17:55:17,894 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:55:17,895 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:55:17,997 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 17:55:19,096 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:55:19,114 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:55:19,114 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 17:55:19,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:55:19 BoogieIcfgContainer [2021-12-14 17:55:19,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:55:19,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:55:19,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:55:19,120 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:55:19,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:55:16" (1/3) ... [2021-12-14 17:55:19,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30fc1600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:55:19, skipping insertion in model container [2021-12-14 17:55:19,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:55:17" (2/3) ... [2021-12-14 17:55:19,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30fc1600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:55:19, skipping insertion in model container [2021-12-14 17:55:19,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:55:19" (3/3) ... [2021-12-14 17:55:19,122 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-4ee267b-1-130_7a-drivers--hwmon--ibmaem.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-14 17:55:19,126 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:55:19,126 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:55:19,158 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:55:19,163 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 17:55:19,163 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:55:19,197 INFO L276 IsEmpty]: Start isEmpty. Operand has 472 states, 333 states have (on average 1.2762762762762763) internal successors, (425), 342 states have internal predecessors, (425), 102 states have call successors, (102), 36 states have call predecessors, (102), 35 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2021-12-14 17:55:19,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2021-12-14 17:55:19,220 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:55:19,220 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:55:19,221 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:55:19,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:55:19,225 INFO L85 PathProgramCache]: Analyzing trace with hash -971476011, now seen corresponding path program 1 times [2021-12-14 17:55:19,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:55:19,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082968741] [2021-12-14 17:55:19,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:55:19,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:55:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:19,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:55:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:19,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:19,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:19,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:55:19,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:19,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:19,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:19,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:55:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:19,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:19,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:19,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:19,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:55:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:19,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:19,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:19,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 17:55:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:19,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:19,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:19,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:19,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 17:55:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:19,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:19,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:19,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:19,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 17:55:19,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:19,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:19,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:19,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:19,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 17:55:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:19,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:19,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:19,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 17:55:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:20,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:20,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:20,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:20,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 17:55:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:20,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-14 17:55:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:20,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-14 17:55:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:20,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-14 17:55:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:20,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-14 17:55:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:20,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-14 17:55:20,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:20,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-14 17:55:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:20,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-14 17:55:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:20,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 17:55:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:20,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-14 17:55:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:20,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:20,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-14 17:55:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:20,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-14 17:55:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:20,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-14 17:55:20,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:20,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2021-12-14 17:55:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:20,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:20,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-14 17:55:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:20,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:20,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:20,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-12-14 17:55:20,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:20,263 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2021-12-14 17:55:20,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:55:20,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082968741] [2021-12-14 17:55:20,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082968741] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:55:20,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:55:20,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 17:55:20,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708742126] [2021-12-14 17:55:20,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:55:20,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 17:55:20,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:55:20,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 17:55:20,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-14 17:55:20,300 INFO L87 Difference]: Start difference. First operand has 472 states, 333 states have (on average 1.2762762762762763) internal successors, (425), 342 states have internal predecessors, (425), 102 states have call successors, (102), 36 states have call predecessors, (102), 35 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 2 states have internal predecessors, (117), 2 states have call successors, (32), 7 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-14 17:55:22,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:55:22,277 INFO L93 Difference]: Finished difference Result 979 states and 1330 transitions. [2021-12-14 17:55:22,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:55:22,279 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 2 states have internal predecessors, (117), 2 states have call successors, (32), 7 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 296 [2021-12-14 17:55:22,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:55:22,288 INFO L225 Difference]: With dead ends: 979 [2021-12-14 17:55:22,289 INFO L226 Difference]: Without dead ends: 491 [2021-12-14 17:55:22,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-14 17:55:22,295 INFO L933 BasicCegarLoop]: 576 mSDtfsCounter, 320 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-14 17:55:22,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 1293 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-14 17:55:22,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2021-12-14 17:55:22,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 452. [2021-12-14 17:55:22,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 322 states have (on average 1.2515527950310559) internal successors, (403), 324 states have internal predecessors, (403), 94 states have call successors, (94), 35 states have call predecessors, (94), 35 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2021-12-14 17:55:22,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 591 transitions. [2021-12-14 17:55:22,346 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 591 transitions. Word has length 296 [2021-12-14 17:55:22,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:55:22,346 INFO L470 AbstractCegarLoop]: Abstraction has 452 states and 591 transitions. [2021-12-14 17:55:22,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 2 states have internal predecessors, (117), 2 states have call successors, (32), 7 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-14 17:55:22,347 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 591 transitions. [2021-12-14 17:55:22,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2021-12-14 17:55:22,362 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:55:22,362 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:55:22,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 17:55:22,363 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:55:22,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:55:22,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1305903964, now seen corresponding path program 1 times [2021-12-14 17:55:22,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:55:22,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606237640] [2021-12-14 17:55:22,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:55:22,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:55:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:55:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:55:22,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:22,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:55:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:55:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 17:55:22,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 17:55:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:22,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 17:55:22,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 17:55:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:22,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 17:55:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:22,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 17:55:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-14 17:55:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-14 17:55:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-14 17:55:22,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-14 17:55:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-14 17:55:22,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-14 17:55:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-14 17:55:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 17:55:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-14 17:55:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:22,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-14 17:55:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-14 17:55:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-14 17:55:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2021-12-14 17:55:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-14 17:55:22,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:22,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-14 17:55:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:22,804 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2021-12-14 17:55:22,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:55:22,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606237640] [2021-12-14 17:55:22,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606237640] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:55:22,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:55:22,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 17:55:22,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596198464] [2021-12-14 17:55:22,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:55:22,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 17:55:22,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:55:22,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 17:55:22,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-14 17:55:22,812 INFO L87 Difference]: Start difference. First operand 452 states and 591 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (32), 7 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-14 17:55:25,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:55:25,107 INFO L93 Difference]: Finished difference Result 983 states and 1287 transitions. [2021-12-14 17:55:25,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 17:55:25,107 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (32), 7 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 294 [2021-12-14 17:55:25,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:55:25,111 INFO L225 Difference]: With dead ends: 983 [2021-12-14 17:55:25,111 INFO L226 Difference]: Without dead ends: 568 [2021-12-14 17:55:25,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-14 17:55:25,113 INFO L933 BasicCegarLoop]: 564 mSDtfsCounter, 585 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-14 17:55:25,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [625 Valid, 1606 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [408 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-14 17:55:25,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2021-12-14 17:55:25,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 524. [2021-12-14 17:55:25,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 379 states have (on average 1.2612137203166227) internal successors, (478), 381 states have internal predecessors, (478), 102 states have call successors, (102), 42 states have call predecessors, (102), 42 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2021-12-14 17:55:25,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 682 transitions. [2021-12-14 17:55:25,161 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 682 transitions. Word has length 294 [2021-12-14 17:55:25,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:55:25,161 INFO L470 AbstractCegarLoop]: Abstraction has 524 states and 682 transitions. [2021-12-14 17:55:25,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (32), 7 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-14 17:55:25,162 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 682 transitions. [2021-12-14 17:55:25,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2021-12-14 17:55:25,165 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:55:25,165 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:55:25,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 17:55:25,166 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:55:25,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:55:25,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1377923056, now seen corresponding path program 1 times [2021-12-14 17:55:25,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:55:25,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677101897] [2021-12-14 17:55:25,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:55:25,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:55:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:55:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:25,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:25,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:55:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:25,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:55:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:25,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:55:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:25,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 17:55:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 17:55:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 17:55:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 17:55:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 17:55:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 17:55:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-14 17:55:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-14 17:55:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-14 17:55:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-14 17:55:25,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-14 17:55:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-14 17:55:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-14 17:55:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 17:55:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-14 17:55:25,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-14 17:55:25,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-14 17:55:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-14 17:55:25,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-14 17:55:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:25,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-14 17:55:25,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:25,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-14 17:55:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:25,581 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2021-12-14 17:55:25,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:55:25,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677101897] [2021-12-14 17:55:25,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677101897] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:55:25,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:55:25,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 17:55:25,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590865289] [2021-12-14 17:55:25,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:55:25,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 17:55:25,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:55:25,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 17:55:25,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-14 17:55:25,584 INFO L87 Difference]: Start difference. First operand 524 states and 682 transitions. Second operand has 8 states, 8 states have (on average 15.75) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (32), 7 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-14 17:55:28,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:55:28,091 INFO L93 Difference]: Finished difference Result 1054 states and 1378 transitions. [2021-12-14 17:55:28,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 17:55:28,092 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (32), 7 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 307 [2021-12-14 17:55:28,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:55:28,097 INFO L225 Difference]: With dead ends: 1054 [2021-12-14 17:55:28,097 INFO L226 Difference]: Without dead ends: 570 [2021-12-14 17:55:28,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-14 17:55:28,104 INFO L933 BasicCegarLoop]: 541 mSDtfsCounter, 434 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 1622 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-14 17:55:28,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [464 Valid, 1622 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-14 17:55:28,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2021-12-14 17:55:28,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 525. [2021-12-14 17:55:28,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 380 states have (on average 1.2605263157894737) internal successors, (479), 382 states have internal predecessors, (479), 102 states have call successors, (102), 42 states have call predecessors, (102), 42 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2021-12-14 17:55:28,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 683 transitions. [2021-12-14 17:55:28,142 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 683 transitions. Word has length 307 [2021-12-14 17:55:28,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:55:28,144 INFO L470 AbstractCegarLoop]: Abstraction has 525 states and 683 transitions. [2021-12-14 17:55:28,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (32), 7 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-14 17:55:28,144 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 683 transitions. [2021-12-14 17:55:28,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2021-12-14 17:55:28,150 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:55:28,150 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:55:28,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 17:55:28,150 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:55:28,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:55:28,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1205524191, now seen corresponding path program 1 times [2021-12-14 17:55:28,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:55:28,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221432580] [2021-12-14 17:55:28,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:55:28,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:55:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:55:28,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:28,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:28,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:55:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:55:28,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:28,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:55:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 17:55:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 17:55:28,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 17:55:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 17:55:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 17:55:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 17:55:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-14 17:55:28,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-14 17:55:28,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-14 17:55:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-14 17:55:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-14 17:55:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-14 17:55:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-14 17:55:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 17:55:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-14 17:55:28,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-14 17:55:28,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-14 17:55:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-14 17:55:28,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-12-14 17:55:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:28,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-14 17:55:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:28,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-12-14 17:55:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:28,815 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2021-12-14 17:55:28,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:55:28,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221432580] [2021-12-14 17:55:28,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221432580] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:55:28,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:55:28,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-14 17:55:28,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934865954] [2021-12-14 17:55:28,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:55:28,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-14 17:55:28,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:55:28,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-14 17:55:28,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-12-14 17:55:28,817 INFO L87 Difference]: Start difference. First operand 525 states and 683 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 5 states have internal predecessors, (127), 3 states have call successors, (32), 7 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-12-14 17:55:32,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:55:32,476 INFO L93 Difference]: Finished difference Result 1619 states and 2144 transitions. [2021-12-14 17:55:32,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-14 17:55:32,477 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 5 states have internal predecessors, (127), 3 states have call successors, (32), 7 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 308 [2021-12-14 17:55:32,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:55:32,484 INFO L225 Difference]: With dead ends: 1619 [2021-12-14 17:55:32,484 INFO L226 Difference]: Without dead ends: 1617 [2021-12-14 17:55:32,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2021-12-14 17:55:32,486 INFO L933 BasicCegarLoop]: 682 mSDtfsCounter, 2003 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 2118 mSolverCounterSat, 1033 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2123 SdHoareTripleChecker+Valid, 2353 SdHoareTripleChecker+Invalid, 3151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1033 IncrementalHoareTripleChecker+Valid, 2118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-14 17:55:32,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2123 Valid, 2353 Invalid, 3151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1033 Valid, 2118 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-12-14 17:55:32,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2021-12-14 17:55:32,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1493. [2021-12-14 17:55:32,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 1091 states have (on average 1.2685609532538955) internal successors, (1384), 1097 states have internal predecessors, (1384), 280 states have call successors, (280), 121 states have call predecessors, (280), 121 states have return successors, (294), 280 states have call predecessors, (294), 280 states have call successors, (294) [2021-12-14 17:55:32,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 1958 transitions. [2021-12-14 17:55:32,567 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 1958 transitions. Word has length 308 [2021-12-14 17:55:32,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:55:32,568 INFO L470 AbstractCegarLoop]: Abstraction has 1493 states and 1958 transitions. [2021-12-14 17:55:32,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 5 states have internal predecessors, (127), 3 states have call successors, (32), 7 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-12-14 17:55:32,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 1958 transitions. [2021-12-14 17:55:32,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2021-12-14 17:55:32,573 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:55:32,573 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:55:32,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 17:55:32,573 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:55:32,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:55:32,574 INFO L85 PathProgramCache]: Analyzing trace with hash -666051633, now seen corresponding path program 1 times [2021-12-14 17:55:32,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:55:32,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926160294] [2021-12-14 17:55:32,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:55:32,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:55:32,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:55:32,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:32,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:55:32,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:32,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:32,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:55:32,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:55:32,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:32,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:32,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 17:55:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:32,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 17:55:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 17:55:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:32,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 17:55:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:32,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 17:55:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:32,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 17:55:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-14 17:55:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-14 17:55:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-14 17:55:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-14 17:55:32,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-14 17:55:32,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-14 17:55:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-14 17:55:32,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 17:55:32,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-14 17:55:32,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-14 17:55:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-14 17:55:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-14 17:55:32,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-12-14 17:55:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-14 17:55:32,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-12-14 17:55:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:32,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-12-14 17:55:32,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:32,980 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 527 trivial. 0 not checked. [2021-12-14 17:55:32,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:55:32,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926160294] [2021-12-14 17:55:32,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926160294] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 17:55:32,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370853540] [2021-12-14 17:55:32,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:55:32,981 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 17:55:32,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:55:32,983 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 17:55:32,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 17:55:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:33,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 3169 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 17:55:33,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 17:55:34,035 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 527 trivial. 0 not checked. [2021-12-14 17:55:34,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 17:55:34,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370853540] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:55:34,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 17:55:34,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 11 [2021-12-14 17:55:34,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475554550] [2021-12-14 17:55:34,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:55:34,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:55:34,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:55:34,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:55:34,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-12-14 17:55:34,037 INFO L87 Difference]: Start difference. First operand 1493 states and 1958 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-14 17:55:34,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:55:34,546 INFO L93 Difference]: Finished difference Result 3281 states and 4384 transitions. [2021-12-14 17:55:34,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:55:34,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 327 [2021-12-14 17:55:34,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:55:34,554 INFO L225 Difference]: With dead ends: 3281 [2021-12-14 17:55:34,554 INFO L226 Difference]: Without dead ends: 1832 [2021-12-14 17:55:34,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-12-14 17:55:34,559 INFO L933 BasicCegarLoop]: 695 mSDtfsCounter, 95 mSDsluCounter, 1979 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 2674 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-14 17:55:34,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 2674 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-14 17:55:34,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1832 states. [2021-12-14 17:55:34,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1832 to 1505. [2021-12-14 17:55:34,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1100 states have (on average 1.2663636363636364) internal successors, (1393), 1106 states have internal predecessors, (1393), 280 states have call successors, (280), 121 states have call predecessors, (280), 124 states have return successors, (303), 283 states have call predecessors, (303), 280 states have call successors, (303) [2021-12-14 17:55:34,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 1976 transitions. [2021-12-14 17:55:34,626 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 1976 transitions. Word has length 327 [2021-12-14 17:55:34,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:55:34,627 INFO L470 AbstractCegarLoop]: Abstraction has 1505 states and 1976 transitions. [2021-12-14 17:55:34,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-14 17:55:34,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 1976 transitions. [2021-12-14 17:55:34,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-12-14 17:55:34,645 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:55:34,645 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:55:34,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-14 17:55:34,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 17:55:34,860 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:55:34,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:55:34,860 INFO L85 PathProgramCache]: Analyzing trace with hash 215688891, now seen corresponding path program 1 times [2021-12-14 17:55:34,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:55:34,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274644004] [2021-12-14 17:55:34,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:55:34,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:55:34,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:55:35,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:55:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:35,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:55:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:55:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:35,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:35,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 17:55:35,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:35,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 17:55:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:35,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 17:55:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:35,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:35,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 17:55:35,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 17:55:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 17:55:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-14 17:55:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-14 17:55:35,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-14 17:55:35,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-14 17:55:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-14 17:55:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-14 17:55:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-14 17:55:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 17:55:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-14 17:55:35,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-14 17:55:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-14 17:55:35,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-14 17:55:35,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-12-14 17:55:35,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:35,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-14 17:55:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-12-14 17:55:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:35,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-12-14 17:55:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:35,330 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 531 trivial. 0 not checked. [2021-12-14 17:55:35,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:55:35,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274644004] [2021-12-14 17:55:35,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274644004] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:55:35,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:55:35,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-14 17:55:35,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534921922] [2021-12-14 17:55:35,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:55:35,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-14 17:55:35,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:55:35,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-14 17:55:35,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-12-14 17:55:35,333 INFO L87 Difference]: Start difference. First operand 1505 states and 1976 transitions. Second operand has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (34), 8 states have call predecessors, (34), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-14 17:55:40,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:55:40,951 INFO L93 Difference]: Finished difference Result 3767 states and 5170 transitions. [2021-12-14 17:55:40,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 17:55:40,952 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (34), 8 states have call predecessors, (34), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 326 [2021-12-14 17:55:40,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:55:40,960 INFO L225 Difference]: With dead ends: 3767 [2021-12-14 17:55:40,961 INFO L226 Difference]: Without dead ends: 2306 [2021-12-14 17:55:40,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2021-12-14 17:55:40,965 INFO L933 BasicCegarLoop]: 781 mSDtfsCounter, 564 mSDsluCounter, 3321 mSDsCounter, 0 mSdLazyCounter, 2130 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 4102 SdHoareTripleChecker+Invalid, 2458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 2130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-12-14 17:55:40,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [611 Valid, 4102 Invalid, 2458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [328 Valid, 2130 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2021-12-14 17:55:40,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2306 states. [2021-12-14 17:55:41,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2306 to 1571. [2021-12-14 17:55:41,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1149 states have (on average 1.2637075718015667) internal successors, (1452), 1159 states have internal predecessors, (1452), 290 states have call successors, (290), 121 states have call predecessors, (290), 131 states have return successors, (333), 296 states have call predecessors, (333), 290 states have call successors, (333) [2021-12-14 17:55:41,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 2075 transitions. [2021-12-14 17:55:41,030 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 2075 transitions. Word has length 326 [2021-12-14 17:55:41,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:55:41,030 INFO L470 AbstractCegarLoop]: Abstraction has 1571 states and 2075 transitions. [2021-12-14 17:55:41,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (34), 8 states have call predecessors, (34), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-14 17:55:41,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 2075 transitions. [2021-12-14 17:55:41,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2021-12-14 17:55:41,034 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:55:41,034 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:55:41,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 17:55:41,035 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:55:41,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:55:41,035 INFO L85 PathProgramCache]: Analyzing trace with hash -968946165, now seen corresponding path program 1 times [2021-12-14 17:55:41,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:55:41,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122567464] [2021-12-14 17:55:41,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:55:41,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:55:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:55:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:55:41,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:55:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:55:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:41,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 17:55:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:41,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 17:55:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:41,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 17:55:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 17:55:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 17:55:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 17:55:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-14 17:55:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-14 17:55:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-14 17:55:41,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-14 17:55:41,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-14 17:55:41,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-14 17:55:41,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-14 17:55:41,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 17:55:41,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 17:55:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 17:55:41,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 17:55:41,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-14 17:55:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-14 17:55:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-12-14 17:55:41,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-14 17:55:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-12-14 17:55:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-14 17:55:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-14 17:55:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:41,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-12-14 17:55:41,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:41,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-12-14 17:55:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:41,479 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2021-12-14 17:55:41,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:55:41,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122567464] [2021-12-14 17:55:41,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122567464] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:55:41,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:55:41,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-14 17:55:41,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773091562] [2021-12-14 17:55:41,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:55:41,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-14 17:55:41,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:55:41,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-14 17:55:41,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-12-14 17:55:41,483 INFO L87 Difference]: Start difference. First operand 1571 states and 2075 transitions. Second operand has 11 states, 11 states have (on average 13.909090909090908) internal successors, (153), 4 states have internal predecessors, (153), 2 states have call successors, (38), 8 states have call predecessors, (38), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2021-12-14 17:55:45,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:55:45,940 INFO L93 Difference]: Finished difference Result 3863 states and 5308 transitions. [2021-12-14 17:55:45,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 17:55:45,942 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.909090909090908) internal successors, (153), 4 states have internal predecessors, (153), 2 states have call successors, (38), 8 states have call predecessors, (38), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) Word has length 351 [2021-12-14 17:55:45,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:55:45,951 INFO L225 Difference]: With dead ends: 3863 [2021-12-14 17:55:45,951 INFO L226 Difference]: Without dead ends: 2336 [2021-12-14 17:55:45,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2021-12-14 17:55:45,955 INFO L933 BasicCegarLoop]: 813 mSDtfsCounter, 567 mSDsluCounter, 3173 mSDsCounter, 0 mSdLazyCounter, 1811 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 3986 SdHoareTripleChecker+Invalid, 2132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 1811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-14 17:55:45,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [620 Valid, 3986 Invalid, 2132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 1811 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-12-14 17:55:45,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2021-12-14 17:55:46,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 1577. [2021-12-14 17:55:46,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1155 states have (on average 1.2623376623376623) internal successors, (1458), 1162 states have internal predecessors, (1458), 290 states have call successors, (290), 121 states have call predecessors, (290), 131 states have return successors, (333), 299 states have call predecessors, (333), 290 states have call successors, (333) [2021-12-14 17:55:46,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 2081 transitions. [2021-12-14 17:55:46,019 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 2081 transitions. Word has length 351 [2021-12-14 17:55:46,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:55:46,020 INFO L470 AbstractCegarLoop]: Abstraction has 1577 states and 2081 transitions. [2021-12-14 17:55:46,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.909090909090908) internal successors, (153), 4 states have internal predecessors, (153), 2 states have call successors, (38), 8 states have call predecessors, (38), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2021-12-14 17:55:46,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 2081 transitions. [2021-12-14 17:55:46,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2021-12-14 17:55:46,024 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:55:46,025 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:55:46,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 17:55:46,025 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:55:46,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:55:46,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1961672681, now seen corresponding path program 1 times [2021-12-14 17:55:46,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:55:46,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776182850] [2021-12-14 17:55:46,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:55:46,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:55:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:55:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:46,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:55:46,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:46,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:55:46,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:46,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:55:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:46,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 17:55:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:46,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:46,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 17:55:46,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:46,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:46,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 17:55:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:46,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:46,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 17:55:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 17:55:46,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 17:55:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-14 17:55:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-14 17:55:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-14 17:55:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-14 17:55:46,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-14 17:55:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-14 17:55:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-14 17:55:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 17:55:46,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 17:55:46,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 17:55:46,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 17:55:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-14 17:55:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-14 17:55:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-12-14 17:55:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-14 17:55:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-12-14 17:55:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-14 17:55:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:46,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-14 17:55:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:46,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-14 17:55:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-12-14 17:55:46,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:46,586 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2021-12-14 17:55:46,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:55:46,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776182850] [2021-12-14 17:55:46,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776182850] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 17:55:46,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397884735] [2021-12-14 17:55:46,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:55:46,587 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 17:55:46,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:55:46,589 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 17:55:46,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-14 17:55:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:47,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 3218 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 17:55:47,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 17:55:47,717 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2021-12-14 17:55:47,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 17:55:47,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397884735] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:55:47,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 17:55:47,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 16 [2021-12-14 17:55:47,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034605351] [2021-12-14 17:55:47,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:55:47,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:55:47,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:55:47,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:55:47,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2021-12-14 17:55:47,719 INFO L87 Difference]: Start difference. First operand 1577 states and 2081 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-14 17:55:48,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:55:48,660 INFO L93 Difference]: Finished difference Result 3662 states and 4964 transitions. [2021-12-14 17:55:48,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 17:55:48,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 348 [2021-12-14 17:55:48,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:55:48,668 INFO L225 Difference]: With dead ends: 3662 [2021-12-14 17:55:48,668 INFO L226 Difference]: Without dead ends: 2129 [2021-12-14 17:55:48,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 446 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2021-12-14 17:55:48,672 INFO L933 BasicCegarLoop]: 771 mSDtfsCounter, 325 mSDsluCounter, 1204 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 1975 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-14 17:55:48,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 1975 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-14 17:55:48,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2129 states. [2021-12-14 17:55:48,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2129 to 1583. [2021-12-14 17:55:48,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1161 states have (on average 1.2609819121447028) internal successors, (1464), 1168 states have internal predecessors, (1464), 290 states have call successors, (290), 121 states have call predecessors, (290), 131 states have return successors, (333), 299 states have call predecessors, (333), 290 states have call successors, (333) [2021-12-14 17:55:48,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 2087 transitions. [2021-12-14 17:55:48,724 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 2087 transitions. Word has length 348 [2021-12-14 17:55:48,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:55:48,725 INFO L470 AbstractCegarLoop]: Abstraction has 1583 states and 2087 transitions. [2021-12-14 17:55:48,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-14 17:55:48,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 2087 transitions. [2021-12-14 17:55:48,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2021-12-14 17:55:48,729 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:55:48,729 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:55:48,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-14 17:55:48,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-12-14 17:55:48,944 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:55:48,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:55:48,944 INFO L85 PathProgramCache]: Analyzing trace with hash -119869932, now seen corresponding path program 1 times [2021-12-14 17:55:48,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:55:48,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854081213] [2021-12-14 17:55:48,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:55:48,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:55:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:55:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:49,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:55:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:55:49,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:49,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:55:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:49,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 17:55:49,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:49,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 17:55:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:49,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 17:55:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:49,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 17:55:49,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 17:55:49,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:49,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 17:55:49,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-14 17:55:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-14 17:55:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-14 17:55:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-14 17:55:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-14 17:55:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-14 17:55:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-14 17:55:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 17:55:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 17:55:49,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 17:55:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 17:55:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-14 17:55:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-12-14 17:55:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-12-14 17:55:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-14 17:55:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-14 17:55:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-12-14 17:55:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2021-12-14 17:55:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-12-14 17:55:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:49,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-12-14 17:55:49,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:49,412 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2021-12-14 17:55:49,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:55:49,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854081213] [2021-12-14 17:55:49,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854081213] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 17:55:49,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529208305] [2021-12-14 17:55:49,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:55:49,413 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 17:55:49,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:55:49,414 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 17:55:49,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-14 17:55:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:50,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 3287 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 17:55:50,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 17:55:50,594 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2021-12-14 17:55:50,594 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 17:55:50,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529208305] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:55:50,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 17:55:50,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 16 [2021-12-14 17:55:50,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669536186] [2021-12-14 17:55:50,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:55:50,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:55:50,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:55:50,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:55:50,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2021-12-14 17:55:50,596 INFO L87 Difference]: Start difference. First operand 1583 states and 2087 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-14 17:55:51,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:55:51,349 INFO L93 Difference]: Finished difference Result 3674 states and 4976 transitions. [2021-12-14 17:55:51,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 17:55:51,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 353 [2021-12-14 17:55:51,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:55:51,359 INFO L225 Difference]: With dead ends: 3674 [2021-12-14 17:55:51,359 INFO L226 Difference]: Without dead ends: 2135 [2021-12-14 17:55:51,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 451 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2021-12-14 17:55:51,363 INFO L933 BasicCegarLoop]: 753 mSDtfsCounter, 325 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 1953 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-14 17:55:51,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 1953 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-14 17:55:51,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2135 states. [2021-12-14 17:55:51,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2135 to 1583. [2021-12-14 17:55:51,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1161 states have (on average 1.2609819121447028) internal successors, (1464), 1168 states have internal predecessors, (1464), 290 states have call successors, (290), 121 states have call predecessors, (290), 131 states have return successors, (333), 299 states have call predecessors, (333), 290 states have call successors, (333) [2021-12-14 17:55:51,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 2087 transitions. [2021-12-14 17:55:51,430 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 2087 transitions. Word has length 353 [2021-12-14 17:55:51,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:55:51,430 INFO L470 AbstractCegarLoop]: Abstraction has 1583 states and 2087 transitions. [2021-12-14 17:55:51,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-14 17:55:51,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 2087 transitions. [2021-12-14 17:55:51,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2021-12-14 17:55:51,433 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:55:51,433 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:55:51,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-14 17:55:51,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 17:55:51,648 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:55:51,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:55:51,648 INFO L85 PathProgramCache]: Analyzing trace with hash -625035174, now seen corresponding path program 1 times [2021-12-14 17:55:51,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:55:51,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612338276] [2021-12-14 17:55:51,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:55:51,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:55:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:55:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:51,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:51,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:55:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:55:51,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:51,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:51,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:55:51,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:51,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 17:55:51,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:51,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 17:55:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 17:55:51,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 17:55:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:51,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:51,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 17:55:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:51,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:51,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 17:55:51,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-14 17:55:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-14 17:55:51,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-14 17:55:51,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-14 17:55:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-14 17:55:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-14 17:55:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-14 17:55:51,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-14 17:55:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-12-14 17:55:51,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 17:55:51,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-14 17:55:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-14 17:55:51,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-14 17:55:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-14 17:55:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-12-14 17:55:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-14 17:55:51,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:51,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-12-14 17:55:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:51,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2021-12-14 17:55:51,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:51,938 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2021-12-14 17:55:51,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:55:51,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612338276] [2021-12-14 17:55:51,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612338276] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:55:51,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:55:51,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-14 17:55:51,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286450826] [2021-12-14 17:55:51,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:55:51,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-14 17:55:51,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:55:51,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-14 17:55:51,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-12-14 17:55:51,940 INFO L87 Difference]: Start difference. First operand 1583 states and 2087 transitions. Second operand has 10 states, 10 states have (on average 14.4) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (36), 8 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-14 17:55:58,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:55:58,009 INFO L93 Difference]: Finished difference Result 3833 states and 5233 transitions. [2021-12-14 17:55:58,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-14 17:55:58,009 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.4) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (36), 8 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 341 [2021-12-14 17:55:58,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:55:58,020 INFO L225 Difference]: With dead ends: 3833 [2021-12-14 17:55:58,020 INFO L226 Difference]: Without dead ends: 2294 [2021-12-14 17:55:58,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-12-14 17:55:58,025 INFO L933 BasicCegarLoop]: 767 mSDtfsCounter, 905 mSDsluCounter, 2533 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 3300 SdHoareTripleChecker+Invalid, 2333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 597 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-12-14 17:55:58,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [916 Valid, 3300 Invalid, 2333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [597 Valid, 1736 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2021-12-14 17:55:58,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states. [2021-12-14 17:55:58,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 1589. [2021-12-14 17:55:58,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 1167 states have (on average 1.2596401028277635) internal successors, (1470), 1174 states have internal predecessors, (1470), 290 states have call successors, (290), 121 states have call predecessors, (290), 131 states have return successors, (333), 299 states have call predecessors, (333), 290 states have call successors, (333) [2021-12-14 17:55:58,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 2093 transitions. [2021-12-14 17:55:58,101 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 2093 transitions. Word has length 341 [2021-12-14 17:55:58,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:55:58,101 INFO L470 AbstractCegarLoop]: Abstraction has 1589 states and 2093 transitions. [2021-12-14 17:55:58,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.4) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (36), 8 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-14 17:55:58,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 2093 transitions. [2021-12-14 17:55:58,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2021-12-14 17:55:58,104 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:55:58,104 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:55:58,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-14 17:55:58,105 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:55:58,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:55:58,105 INFO L85 PathProgramCache]: Analyzing trace with hash -447177438, now seen corresponding path program 1 times [2021-12-14 17:55:58,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:55:58,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300941296] [2021-12-14 17:55:58,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:55:58,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:55:58,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:55:58,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:58,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:55:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:55:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:58,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:58,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:55:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:58,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 17:55:58,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:58,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 17:55:58,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:58,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 17:55:58,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 17:55:58,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:58,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 17:55:58,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:58,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:58,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 17:55:58,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-14 17:55:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-14 17:55:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-14 17:55:58,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-14 17:55:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-14 17:55:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-14 17:55:58,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-14 17:55:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-14 17:55:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-14 17:55:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 17:55:58,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2021-12-14 17:55:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:58,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-14 17:55:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-14 17:55:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-14 17:55:58,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-14 17:55:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-12-14 17:55:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:58,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-12-14 17:55:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-12-14 17:55:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:58,539 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2021-12-14 17:55:58,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:55:58,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300941296] [2021-12-14 17:55:58,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300941296] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:55:58,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:55:58,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-14 17:55:58,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184928014] [2021-12-14 17:55:58,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:55:58,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-14 17:55:58,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:55:58,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-14 17:55:58,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-12-14 17:55:58,542 INFO L87 Difference]: Start difference. First operand 1589 states and 2093 transitions. Second operand has 10 states, 10 states have (on average 14.6) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (36), 8 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-14 17:56:02,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:56:02,438 INFO L93 Difference]: Finished difference Result 3845 states and 5245 transitions. [2021-12-14 17:56:02,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-14 17:56:02,438 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.6) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (36), 8 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 343 [2021-12-14 17:56:02,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:56:02,465 INFO L225 Difference]: With dead ends: 3845 [2021-12-14 17:56:02,465 INFO L226 Difference]: Without dead ends: 2300 [2021-12-14 17:56:02,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-12-14 17:56:02,469 INFO L933 BasicCegarLoop]: 773 mSDtfsCounter, 809 mSDsluCounter, 1927 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 2700 SdHoareTripleChecker+Invalid, 1744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-14 17:56:02,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [820 Valid, 2700 Invalid, 1744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-12-14 17:56:02,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2300 states. [2021-12-14 17:56:02,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2300 to 1589. [2021-12-14 17:56:02,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 1167 states have (on average 1.2596401028277635) internal successors, (1470), 1174 states have internal predecessors, (1470), 290 states have call successors, (290), 121 states have call predecessors, (290), 131 states have return successors, (333), 299 states have call predecessors, (333), 290 states have call successors, (333) [2021-12-14 17:56:02,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 2093 transitions. [2021-12-14 17:56:02,525 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 2093 transitions. Word has length 343 [2021-12-14 17:56:02,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:56:02,525 INFO L470 AbstractCegarLoop]: Abstraction has 1589 states and 2093 transitions. [2021-12-14 17:56:02,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.6) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (36), 8 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-14 17:56:02,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 2093 transitions. [2021-12-14 17:56:02,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2021-12-14 17:56:02,528 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:56:02,528 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:56:02,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-14 17:56:02,528 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:56:02,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:56:02,529 INFO L85 PathProgramCache]: Analyzing trace with hash -227082982, now seen corresponding path program 1 times [2021-12-14 17:56:02,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:56:02,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472714289] [2021-12-14 17:56:02,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:56:02,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:56:02,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:56:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:02,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:56:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:02,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:02,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:56:02,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:56:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:02,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 17:56:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:02,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 17:56:02,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 17:56:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 17:56:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:02,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 17:56:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 17:56:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-14 17:56:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-14 17:56:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-14 17:56:02,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-14 17:56:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-14 17:56:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-14 17:56:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-14 17:56:02,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-14 17:56:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-14 17:56:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 17:56:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-14 17:56:02,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-12-14 17:56:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-14 17:56:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-14 17:56:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-14 17:56:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-14 17:56:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2021-12-14 17:56:02,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-12-14 17:56:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:02,866 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2021-12-14 17:56:02,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:56:02,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472714289] [2021-12-14 17:56:02,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472714289] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:56:02,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:56:02,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 17:56:02,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645929505] [2021-12-14 17:56:02,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:56:02,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 17:56:02,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:56:02,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 17:56:02,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-12-14 17:56:02,868 INFO L87 Difference]: Start difference. First operand 1589 states and 2093 transitions. Second operand has 9 states, 9 states have (on average 16.666666666666668) internal successors, (150), 3 states have internal predecessors, (150), 2 states have call successors, (36), 8 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-14 17:56:06,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:56:06,154 INFO L93 Difference]: Finished difference Result 3281 states and 4352 transitions. [2021-12-14 17:56:06,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 17:56:06,155 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.666666666666668) internal successors, (150), 3 states have internal predecessors, (150), 2 states have call successors, (36), 8 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 348 [2021-12-14 17:56:06,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:56:06,161 INFO L225 Difference]: With dead ends: 3281 [2021-12-14 17:56:06,161 INFO L226 Difference]: Without dead ends: 1736 [2021-12-14 17:56:06,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-12-14 17:56:06,165 INFO L933 BasicCegarLoop]: 560 mSDtfsCounter, 357 mSDsluCounter, 1403 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1963 SdHoareTripleChecker+Invalid, 1626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-12-14 17:56:06,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [368 Valid, 1963 Invalid, 1626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-12-14 17:56:06,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2021-12-14 17:56:06,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 1592. [2021-12-14 17:56:06,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1592 states, 1170 states have (on average 1.258974358974359) internal successors, (1473), 1177 states have internal predecessors, (1473), 290 states have call successors, (290), 121 states have call predecessors, (290), 131 states have return successors, (333), 299 states have call predecessors, (333), 290 states have call successors, (333) [2021-12-14 17:56:06,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1592 states to 1592 states and 2096 transitions. [2021-12-14 17:56:06,215 INFO L78 Accepts]: Start accepts. Automaton has 1592 states and 2096 transitions. Word has length 348 [2021-12-14 17:56:06,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:56:06,216 INFO L470 AbstractCegarLoop]: Abstraction has 1592 states and 2096 transitions. [2021-12-14 17:56:06,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.666666666666668) internal successors, (150), 3 states have internal predecessors, (150), 2 states have call successors, (36), 8 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-14 17:56:06,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1592 states and 2096 transitions. [2021-12-14 17:56:06,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2021-12-14 17:56:06,219 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:56:06,219 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:56:06,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-14 17:56:06,219 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:56:06,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:56:06,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1157196423, now seen corresponding path program 1 times [2021-12-14 17:56:06,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:56:06,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293708025] [2021-12-14 17:56:06,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:56:06,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:56:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:56:06,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:06,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:56:06,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:06,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:06,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:56:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:06,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:56:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:06,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 17:56:06,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:06,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 17:56:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:06,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 17:56:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:06,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 17:56:06,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 17:56:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 17:56:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-14 17:56:06,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-14 17:56:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-14 17:56:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-14 17:56:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-14 17:56:06,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-14 17:56:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-14 17:56:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-14 17:56:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-14 17:56:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 17:56:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-14 17:56:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-12-14 17:56:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-14 17:56:06,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-14 17:56:06,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-14 17:56:06,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-14 17:56:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-12-14 17:56:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:06,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-12-14 17:56:06,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:06,545 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2021-12-14 17:56:06,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:56:06,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293708025] [2021-12-14 17:56:06,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293708025] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:56:06,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:56:06,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 17:56:06,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308230451] [2021-12-14 17:56:06,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:56:06,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 17:56:06,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:56:06,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 17:56:06,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-12-14 17:56:06,547 INFO L87 Difference]: Start difference. First operand 1592 states and 2096 transitions. Second operand has 9 states, 9 states have (on average 16.444444444444443) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (36), 8 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-14 17:56:08,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:56:08,629 INFO L93 Difference]: Finished difference Result 3290 states and 4361 transitions. [2021-12-14 17:56:08,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 17:56:08,630 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.444444444444443) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (36), 8 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 345 [2021-12-14 17:56:08,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:56:08,636 INFO L225 Difference]: With dead ends: 3290 [2021-12-14 17:56:08,636 INFO L226 Difference]: Without dead ends: 1742 [2021-12-14 17:56:08,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-12-14 17:56:08,640 INFO L933 BasicCegarLoop]: 559 mSDtfsCounter, 726 mSDsluCounter, 1045 mSDsCounter, 0 mSdLazyCounter, 784 mSolverCounterSat, 662 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 737 SdHoareTripleChecker+Valid, 1604 SdHoareTripleChecker+Invalid, 1446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 662 IncrementalHoareTripleChecker+Valid, 784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-14 17:56:08,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [737 Valid, 1604 Invalid, 1446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [662 Valid, 784 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-14 17:56:08,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2021-12-14 17:56:08,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1595. [2021-12-14 17:56:08,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1595 states, 1173 states have (on average 1.258312020460358) internal successors, (1476), 1180 states have internal predecessors, (1476), 290 states have call successors, (290), 121 states have call predecessors, (290), 131 states have return successors, (333), 299 states have call predecessors, (333), 290 states have call successors, (333) [2021-12-14 17:56:08,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1595 states to 1595 states and 2099 transitions. [2021-12-14 17:56:08,738 INFO L78 Accepts]: Start accepts. Automaton has 1595 states and 2099 transitions. Word has length 345 [2021-12-14 17:56:08,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:56:08,739 INFO L470 AbstractCegarLoop]: Abstraction has 1595 states and 2099 transitions. [2021-12-14 17:56:08,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.444444444444443) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (36), 8 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-14 17:56:08,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1595 states and 2099 transitions. [2021-12-14 17:56:08,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2021-12-14 17:56:08,742 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:56:08,742 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:56:08,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-14 17:56:08,743 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:56:08,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:56:08,743 INFO L85 PathProgramCache]: Analyzing trace with hash -369358881, now seen corresponding path program 1 times [2021-12-14 17:56:08,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:56:08,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639819773] [2021-12-14 17:56:08,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:56:08,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:56:08,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:56:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:08,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:56:08,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:08,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:56:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:08,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:08,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:56:08,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:08,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 17:56:08,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:08,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 17:56:08,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 17:56:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:08,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:08,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 17:56:08,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:08,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 17:56:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 17:56:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-14 17:56:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-14 17:56:08,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-14 17:56:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-14 17:56:08,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-14 17:56:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-14 17:56:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-14 17:56:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 17:56:08,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 17:56:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 17:56:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 17:56:08,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-14 17:56:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:08,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-14 17:56:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:09,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:09,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:09,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-14 17:56:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:09,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-14 17:56:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:09,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-12-14 17:56:09,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:09,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-12-14 17:56:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:09,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:09,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:09,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-14 17:56:09,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:09,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:09,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2021-12-14 17:56:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:09,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:09,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2021-12-14 17:56:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:09,044 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2021-12-14 17:56:09,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:56:09,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639819773] [2021-12-14 17:56:09,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639819773] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:56:09,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:56:09,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 17:56:09,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903463110] [2021-12-14 17:56:09,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:56:09,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 17:56:09,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:56:09,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 17:56:09,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-12-14 17:56:09,046 INFO L87 Difference]: Start difference. First operand 1595 states and 2099 transitions. Second operand has 9 states, 9 states have (on average 17.11111111111111) internal successors, (154), 3 states have internal predecessors, (154), 2 states have call successors, (38), 8 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-12-14 17:56:11,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:56:11,790 INFO L93 Difference]: Finished difference Result 3293 states and 4364 transitions. [2021-12-14 17:56:11,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 17:56:11,790 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.11111111111111) internal successors, (154), 3 states have internal predecessors, (154), 2 states have call successors, (38), 8 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 354 [2021-12-14 17:56:11,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:56:11,796 INFO L225 Difference]: With dead ends: 3293 [2021-12-14 17:56:11,796 INFO L226 Difference]: Without dead ends: 1742 [2021-12-14 17:56:11,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-12-14 17:56:11,800 INFO L933 BasicCegarLoop]: 560 mSDtfsCounter, 497 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 1469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-14 17:56:11,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [508 Valid, 1792 Invalid, 1469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [433 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-14 17:56:11,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2021-12-14 17:56:11,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1598. [2021-12-14 17:56:11,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1598 states, 1176 states have (on average 1.2576530612244898) internal successors, (1479), 1183 states have internal predecessors, (1479), 290 states have call successors, (290), 121 states have call predecessors, (290), 131 states have return successors, (333), 299 states have call predecessors, (333), 290 states have call successors, (333) [2021-12-14 17:56:11,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1598 states to 1598 states and 2102 transitions. [2021-12-14 17:56:11,849 INFO L78 Accepts]: Start accepts. Automaton has 1598 states and 2102 transitions. Word has length 354 [2021-12-14 17:56:11,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:56:11,850 INFO L470 AbstractCegarLoop]: Abstraction has 1598 states and 2102 transitions. [2021-12-14 17:56:11,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.11111111111111) internal successors, (154), 3 states have internal predecessors, (154), 2 states have call successors, (38), 8 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-12-14 17:56:11,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1598 states and 2102 transitions. [2021-12-14 17:56:11,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2021-12-14 17:56:11,852 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:56:11,853 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:56:11,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-14 17:56:11,853 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:56:11,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:56:11,853 INFO L85 PathProgramCache]: Analyzing trace with hash -745898536, now seen corresponding path program 1 times [2021-12-14 17:56:11,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:56:11,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316112467] [2021-12-14 17:56:11,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:56:11,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:56:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:11,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:56:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:11,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:11,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:11,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:11,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:56:11,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:11,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:11,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:56:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:56:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 17:56:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 17:56:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 17:56:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:12,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 17:56:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 17:56:12,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:56:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 17:56:12,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-14 17:56:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-14 17:56:12,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-14 17:56:12,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-14 17:56:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-14 17:56:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-14 17:56:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-14 17:56:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-14 17:56:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-14 17:56:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 17:56:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-14 17:56:12,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-14 17:56:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-12-14 17:56:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-12-14 17:56:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-12-14 17:56:12,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-12-14 17:56:12,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-14 17:56:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:56:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-12-14 17:56:12,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:12,181 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2021-12-14 17:56:12,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:56:12,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316112467] [2021-12-14 17:56:12,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316112467] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 17:56:12,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143052099] [2021-12-14 17:56:12,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:56:12,182 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 17:56:12,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:56:12,183 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 17:56:12,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-14 17:56:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:56:13,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 3470 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 17:56:13,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 17:56:13,416 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2021-12-14 17:56:13,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 17:56:13,943 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2021-12-14 17:56:13,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143052099] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 17:56:13,943 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 17:56:13,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4, 4] total 11 [2021-12-14 17:56:13,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63644274] [2021-12-14 17:56:13,944 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 17:56:13,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-14 17:56:13,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:56:13,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-14 17:56:13,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-14 17:56:13,946 INFO L87 Difference]: Start difference. First operand 1598 states and 2102 transitions. Second operand has 11 states, 11 states have (on average 18.454545454545453) internal successors, (203), 5 states have internal predecessors, (203), 2 states have call successors, (72), 8 states have call predecessors, (72), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47)