./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.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 df4f0c8d40dc980084ec2f9936d9bc7fc71c78b40a0de276eef2539e9d717dce --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-23 02:37:29,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:37:29,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:37:29,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:37:29,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:37:29,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:37:29,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:37:29,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:37:29,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:37:29,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:37:29,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:37:29,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:37:29,320 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:37:29,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:37:29,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:37:29,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:37:29,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:37:29,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:37:29,332 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:37:29,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:37:29,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:37:29,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:37:29,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:37:29,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:37:29,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:37:29,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:37:29,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:37:29,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:37:29,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:37:29,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:37:29,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:37:29,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:37:29,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:37:29,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:37:29,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:37:29,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:37:29,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:37:29,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:37:29,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:37:29,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:37:29,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:37:29,358 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 02:37:29,386 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:37:29,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:37:29,387 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:37:29,388 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:37:29,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 02:37:29,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 02:37:29,389 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 02:37:29,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:37:29,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:37:29,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:37:29,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:37:29,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:37:29,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:37:29,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:37:29,391 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:37:29,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:37:29,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:37:29,392 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 02:37:29,392 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:37:29,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:37:29,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:37:29,392 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:37:29,392 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:37:29,393 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 02:37:29,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:37:29,393 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 02:37:29,393 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 02:37:29,393 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:37:29,394 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:37:29,394 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df4f0c8d40dc980084ec2f9936d9bc7fc71c78b40a0de276eef2539e9d717dce [2021-11-23 02:37:29,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:37:29,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:37:29,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:37:29,657 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:37:29,658 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:37:29,659 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i [2021-11-23 02:37:29,720 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f75a4de8f/f80df5c0195d402bb3c45711bdf6b26b/FLAG66fb90f69 [2021-11-23 02:37:30,501 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:37:30,501 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i [2021-11-23 02:37:30,562 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f75a4de8f/f80df5c0195d402bb3c45711bdf6b26b/FLAG66fb90f69 [2021-11-23 02:37:31,019 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f75a4de8f/f80df5c0195d402bb3c45711bdf6b26b [2021-11-23 02:37:31,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:37:31,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:37:31,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:37:31,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:37:31,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:37:31,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:37:31" (1/1) ... [2021-11-23 02:37:31,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fd64ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:31, skipping insertion in model container [2021-11-23 02:37:31,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:37:31" (1/1) ... [2021-11-23 02:37:31,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:37:31,174 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:37:33,969 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[415958,415971] [2021-11-23 02:37:33,971 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416127,416140] [2021-11-23 02:37:33,972 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416294,416307] [2021-11-23 02:37:33,972 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416462,416475] [2021-11-23 02:37:33,984 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:37:34,040 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:37:34,491 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[415958,415971] [2021-11-23 02:37:34,492 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416127,416140] [2021-11-23 02:37:34,493 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416294,416307] [2021-11-23 02:37:34,493 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416462,416475] [2021-11-23 02:37:34,498 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:37:34,664 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:37:34,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:34 WrapperNode [2021-11-23 02:37:34,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:37:34,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:37:34,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:37:34,666 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:37:34,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:34" (1/1) ... [2021-11-23 02:37:34,806 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:34" (1/1) ... [2021-11-23 02:37:36,167 INFO L137 Inliner]: procedures = 484, calls = 3172, calls flagged for inlining = 922, calls inlined = 5033, statements flattened = 57226 [2021-11-23 02:37:36,167 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:37:36,168 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:37:36,168 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:37:36,168 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:37:36,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:34" (1/1) ... [2021-11-23 02:37:36,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:34" (1/1) ... [2021-11-23 02:37:36,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:34" (1/1) ... [2021-11-23 02:37:36,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:34" (1/1) ... [2021-11-23 02:37:37,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:34" (1/1) ... [2021-11-23 02:37:37,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:34" (1/1) ... [2021-11-23 02:37:37,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:34" (1/1) ... [2021-11-23 02:37:38,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:37:38,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:37:38,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:37:38,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:37:38,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:34" (1/1) ... [2021-11-23 02:37:38,209 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:37:38,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 02:37:38,232 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) [2021-11-23 02:37:38,243 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 [2021-11-23 02:37:38,279 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_probe [2021-11-23 02:37:38,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_probe [2021-11-23 02:37:38,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:37:38,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:37:38,280 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-23 02:37:38,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-23 02:37:38,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:37:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:37:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:37:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:37:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:37:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure init_channels [2021-11-23 02:37:38,281 INFO L138 BoogieDeclarations]: Found implementation of procedure init_channels [2021-11-23 02:37:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:37:38,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:37:38,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:37:38,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:37:38,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:37:38,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:37:38,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:37:38,282 INFO L130 BoogieDeclarations]: Found specification of procedure my_dvb_dmxdev_ts_card_init [2021-11-23 02:37:38,283 INFO L138 BoogieDeclarations]: Found implementation of procedure my_dvb_dmxdev_ts_card_init [2021-11-23 02:37:38,283 INFO L130 BoogieDeclarations]: Found specification of procedure init_channel [2021-11-23 02:37:38,283 INFO L138 BoogieDeclarations]: Found implementation of procedure init_channel [2021-11-23 02:37:38,283 INFO L130 BoogieDeclarations]: Found specification of procedure release_channel [2021-11-23 02:37:38,283 INFO L138 BoogieDeclarations]: Found implementation of procedure release_channel [2021-11-23 02:37:38,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:37:38,283 INFO L130 BoogieDeclarations]: Found specification of procedure drxk_gate_ctrl [2021-11-23 02:37:38,284 INFO L138 BoogieDeclarations]: Found implementation of procedure drxk_gate_ctrl [2021-11-23 02:37:38,284 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 02:37:38,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 02:37:38,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:37:39,671 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:37:39,674 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:38:24,231 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res#1 := 0; [2021-11-23 02:38:24,232 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res#1 := 0; [2021-11-23 02:38:24,232 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#1: ldv_switch_1_#res#1 := 0; [2021-11-23 02:38:24,235 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#1: ldv_switch_2_#res#1 := 0; [2021-11-23 02:38:24,235 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res#1 := 0; [2021-11-23 02:38:24,235 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res#1 := 0; [2021-11-23 02:38:24,235 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res#1 := 0; [2021-11-23 02:38:24,236 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-23 02:38:24,236 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res#1 := 0; [2021-11-23 02:38:24,236 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#1: ldv_switch_3_#res#1 := 0; [2021-11-23 02:38:24,237 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#2: ldv_switch_3_#res#1 := 0; [2021-11-23 02:38:24,238 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 02:38:24,261 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:38:24,321 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:38:24,321 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 02:38:24,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:38:24 BoogieIcfgContainer [2021-11-23 02:38:24,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:38:24,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:38:24,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:38:24,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:38:24,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:37:31" (1/3) ... [2021-11-23 02:38:24,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6837f2e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:38:24, skipping insertion in model container [2021-11-23 02:38:24,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:34" (2/3) ... [2021-11-23 02:38:24,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6837f2e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:38:24, skipping insertion in model container [2021-11-23 02:38:24,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:38:24" (3/3) ... [2021-11-23 02:38:24,346 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i [2021-11-23 02:38:24,351 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:38:24,351 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 265 error locations. [2021-11-23 02:38:24,437 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:38:24,445 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 [2021-11-23 02:38:24,446 INFO L340 AbstractCegarLoop]: Starting to check reachability of 265 error locations. [2021-11-23 02:38:24,588 INFO L276 IsEmpty]: Start isEmpty. Operand has 11209 states, 10910 states have (on average 1.3712190650779101) internal successors, (14960), 11174 states have internal predecessors, (14960), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2021-11-23 02:38:24,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 02:38:24,608 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:38:24,608 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:38:24,609 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [init_channelErr0ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr1ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr2ASSERT_VIOLATIONERROR_FUNCTION (and 262 more)] === [2021-11-23 02:38:24,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:38:24,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1803248542, now seen corresponding path program 1 times [2021-11-23 02:38:24,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:38:24,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788030111] [2021-11-23 02:38:24,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:38:24,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:38:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:38:25,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:38:25,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:38:25,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788030111] [2021-11-23 02:38:25,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788030111] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:38:25,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:38:25,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:38:25,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845910989] [2021-11-23 02:38:25,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:38:25,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:38:25,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:38:25,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:38:25,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:38:25,380 INFO L87 Difference]: Start difference. First operand has 11209 states, 10910 states have (on average 1.3712190650779101) internal successors, (14960), 11174 states have internal predecessors, (14960), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:38:26,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:38:26,483 INFO L93 Difference]: Finished difference Result 32834 states and 44053 transitions. [2021-11-23 02:38:26,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:38:26,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-11-23 02:38:26,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:38:26,607 INFO L225 Difference]: With dead ends: 32834 [2021-11-23 02:38:26,608 INFO L226 Difference]: Without dead ends: 20548 [2021-11-23 02:38:26,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:38:26,692 INFO L933 BasicCegarLoop]: 14701 mSDtfsCounter, 14402 mSDsluCounter, 14188 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14402 SdHoareTripleChecker+Valid, 28889 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:38:26,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14402 Valid, 28889 Invalid, 45 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 02:38:26,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20548 states. [2021-11-23 02:38:27,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20548 to 19873. [2021-11-23 02:38:27,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19873 states, 19570 states have (on average 1.313438937148697) internal successors, (25704), 19834 states have internal predecessors, (25704), 26 states have call successors, (26), 12 states have call predecessors, (26), 12 states have return successors, (52), 26 states have call predecessors, (52), 26 states have call successors, (52) [2021-11-23 02:38:27,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19873 states to 19873 states and 25782 transitions. [2021-11-23 02:38:27,696 INFO L78 Accepts]: Start accepts. Automaton has 19873 states and 25782 transitions. Word has length 56 [2021-11-23 02:38:27,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:38:27,697 INFO L470 AbstractCegarLoop]: Abstraction has 19873 states and 25782 transitions. [2021-11-23 02:38:27,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:38:27,699 INFO L276 IsEmpty]: Start isEmpty. Operand 19873 states and 25782 transitions. [2021-11-23 02:38:27,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-23 02:38:27,704 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:38:27,704 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:38:27,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:38:27,706 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [init_channelErr0ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr1ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr2ASSERT_VIOLATIONERROR_FUNCTION (and 262 more)] === [2021-11-23 02:38:27,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:38:27,710 INFO L85 PathProgramCache]: Analyzing trace with hash -788081227, now seen corresponding path program 1 times [2021-11-23 02:38:27,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:38:27,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432080537] [2021-11-23 02:38:27,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:38:27,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:38:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:38:28,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:38:28,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:38:28,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432080537] [2021-11-23 02:38:28,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432080537] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:38:28,026 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:38:28,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:38:28,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439406827] [2021-11-23 02:38:28,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:38:28,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:38:28,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:38:28,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:38:28,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:38:28,031 INFO L87 Difference]: Start difference. First operand 19873 states and 25782 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:38:29,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:38:29,293 INFO L93 Difference]: Finished difference Result 59105 states and 76805 transitions. [2021-11-23 02:38:29,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:38:29,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-23 02:38:29,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:38:29,466 INFO L225 Difference]: With dead ends: 59105 [2021-11-23 02:38:29,466 INFO L226 Difference]: Without dead ends: 39333 [2021-11-23 02:38:29,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:38:29,645 INFO L933 BasicCegarLoop]: 13459 mSDtfsCounter, 13092 mSDsluCounter, 13399 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13092 SdHoareTripleChecker+Valid, 26858 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:38:29,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13092 Valid, 26858 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:38:29,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39333 states. [2021-11-23 02:38:30,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39333 to 38887. [2021-11-23 02:38:30,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38887 states, 38546 states have (on average 1.3162195817983708) internal successors, (50735), 38810 states have internal predecessors, (50735), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (104), 52 states have call predecessors, (104), 52 states have call successors, (104) [2021-11-23 02:38:30,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38887 states to 38887 states and 50891 transitions. [2021-11-23 02:38:30,926 INFO L78 Accepts]: Start accepts. Automaton has 38887 states and 50891 transitions. Word has length 60 [2021-11-23 02:38:30,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:38:30,927 INFO L470 AbstractCegarLoop]: Abstraction has 38887 states and 50891 transitions. [2021-11-23 02:38:30,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:38:30,927 INFO L276 IsEmpty]: Start isEmpty. Operand 38887 states and 50891 transitions. [2021-11-23 02:38:30,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-23 02:38:30,930 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:38:30,930 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:38:30,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:38:30,931 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting release_channelErr0ASSERT_VIOLATIONERROR_FUNCTION === [init_channelErr0ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr1ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr2ASSERT_VIOLATIONERROR_FUNCTION (and 262 more)] === [2021-11-23 02:38:30,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:38:30,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1294547923, now seen corresponding path program 1 times [2021-11-23 02:38:30,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:38:30,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024968813] [2021-11-23 02:38:30,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:38:30,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:38:31,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:38:31,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:38:31,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:38:31,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024968813] [2021-11-23 02:38:31,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024968813] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:38:31,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:38:31,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:38:31,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886445625] [2021-11-23 02:38:31,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:38:31,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:38:31,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:38:31,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:38:31,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:38:31,213 INFO L87 Difference]: Start difference. First operand 38887 states and 50891 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:38:32,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:38:32,362 INFO L93 Difference]: Finished difference Result 61880 states and 80788 transitions. [2021-11-23 02:38:32,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:38:32,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-23 02:38:32,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:38:32,443 INFO L225 Difference]: With dead ends: 61880 [2021-11-23 02:38:32,443 INFO L226 Difference]: Without dead ends: 23094 [2021-11-23 02:38:32,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:38:32,535 INFO L933 BasicCegarLoop]: 13542 mSDtfsCounter, 1653 mSDsluCounter, 13266 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1653 SdHoareTripleChecker+Valid, 26808 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:38:32,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1653 Valid, 26808 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:38:32,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23094 states. [2021-11-23 02:38:33,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23094 to 22980. [2021-11-23 02:38:33,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22980 states, 22677 states have (on average 1.3136217312695684) internal successors, (29789), 22941 states have internal predecessors, (29789), 26 states have call successors, (26), 12 states have call predecessors, (26), 12 states have return successors, (52), 26 states have call predecessors, (52), 26 states have call successors, (52) [2021-11-23 02:38:33,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22980 states to 22980 states and 29867 transitions. [2021-11-23 02:38:33,252 INFO L78 Accepts]: Start accepts. Automaton has 22980 states and 29867 transitions. Word has length 70 [2021-11-23 02:38:33,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:38:33,252 INFO L470 AbstractCegarLoop]: Abstraction has 22980 states and 29867 transitions. [2021-11-23 02:38:33,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:38:33,253 INFO L276 IsEmpty]: Start isEmpty. Operand 22980 states and 29867 transitions. [2021-11-23 02:38:33,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-23 02:38:33,255 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:38:33,255 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:38:33,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:38:33,256 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr108ASSERT_VIOLATIONERROR_FUNCTION === [init_channelErr0ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr1ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr2ASSERT_VIOLATIONERROR_FUNCTION (and 262 more)] === [2021-11-23 02:38:33,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:38:33,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1852047633, now seen corresponding path program 1 times [2021-11-23 02:38:33,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:38:33,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358334651] [2021-11-23 02:38:33,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:38:33,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:38:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:38:33,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:38:33,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:38:33,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358334651] [2021-11-23 02:38:33,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358334651] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:38:33,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:38:33,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:38:33,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403960613] [2021-11-23 02:38:33,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:38:33,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:38:33,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:38:33,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:38:33,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:38:33,603 INFO L87 Difference]: Start difference. First operand 22980 states and 29867 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:38:34,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:38:34,596 INFO L93 Difference]: Finished difference Result 64626 states and 83948 transitions. [2021-11-23 02:38:34,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:38:34,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-23 02:38:34,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:38:34,756 INFO L225 Difference]: With dead ends: 64626 [2021-11-23 02:38:34,757 INFO L226 Difference]: Without dead ends: 41747 [2021-11-23 02:38:34,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:38:34,832 INFO L933 BasicCegarLoop]: 13463 mSDtfsCounter, 12485 mSDsluCounter, 13433 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12485 SdHoareTripleChecker+Valid, 26896 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:38:34,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12485 Valid, 26896 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:38:34,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41747 states. [2021-11-23 02:38:35,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41747 to 41113. [2021-11-23 02:38:35,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41113 states, 40772 states have (on average 1.3144069459432943) internal successors, (53591), 41036 states have internal predecessors, (53591), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (104), 52 states have call predecessors, (104), 52 states have call successors, (104) [2021-11-23 02:38:36,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41113 states to 41113 states and 53747 transitions. [2021-11-23 02:38:36,098 INFO L78 Accepts]: Start accepts. Automaton has 41113 states and 53747 transitions. Word has length 78 [2021-11-23 02:38:36,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:38:36,101 INFO L470 AbstractCegarLoop]: Abstraction has 41113 states and 53747 transitions. [2021-11-23 02:38:36,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:38:36,101 INFO L276 IsEmpty]: Start isEmpty. Operand 41113 states and 53747 transitions. [2021-11-23 02:38:36,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-23 02:38:36,108 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:38:36,109 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 02:38:36,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:38:36,109 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [init_channelErr0ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr1ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr2ASSERT_VIOLATIONERROR_FUNCTION (and 262 more)] === [2021-11-23 02:38:36,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:38:36,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1141691193, now seen corresponding path program 1 times [2021-11-23 02:38:36,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:38:36,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723146152] [2021-11-23 02:38:36,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:38:36,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:38:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:38:36,616 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:38:36,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:38:36,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723146152] [2021-11-23 02:38:36,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723146152] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:38:36,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:38:36,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:38:36,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90733308] [2021-11-23 02:38:36,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:38:36,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:38:36,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:38:36,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:38:36,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:38:36,619 INFO L87 Difference]: Start difference. First operand 41113 states and 53747 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:38:38,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:38:38,557 INFO L93 Difference]: Finished difference Result 121813 states and 159454 transitions. [2021-11-23 02:38:38,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:38:38,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-11-23 02:38:38,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:38:38,888 INFO L225 Difference]: With dead ends: 121813 [2021-11-23 02:38:38,889 INFO L226 Difference]: Without dead ends: 81155 [2021-11-23 02:38:39,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:38:39,023 INFO L933 BasicCegarLoop]: 14754 mSDtfsCounter, 13071 mSDsluCounter, 13419 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13071 SdHoareTripleChecker+Valid, 28173 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:38:39,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13071 Valid, 28173 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:38:39,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81155 states. [2021-11-23 02:38:41,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81155 to 80709. [2021-11-23 02:38:41,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80709 states, 80292 states have (on average 1.3160339759876452) internal successors, (105667), 80556 states have internal predecessors, (105667), 104 states have call successors, (104), 48 states have call predecessors, (104), 48 states have return successors, (208), 104 states have call predecessors, (208), 104 states have call successors, (208) [2021-11-23 02:38:41,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80709 states to 80709 states and 105979 transitions. [2021-11-23 02:38:41,615 INFO L78 Accepts]: Start accepts. Automaton has 80709 states and 105979 transitions. Word has length 94 [2021-11-23 02:38:41,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:38:41,616 INFO L470 AbstractCegarLoop]: Abstraction has 80709 states and 105979 transitions. [2021-11-23 02:38:41,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:38:41,617 INFO L276 IsEmpty]: Start isEmpty. Operand 80709 states and 105979 transitions. [2021-11-23 02:38:41,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-23 02:38:41,625 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:38:41,626 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 02:38:41,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:38:41,626 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [init_channelErr0ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr1ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr2ASSERT_VIOLATIONERROR_FUNCTION (and 262 more)] === [2021-11-23 02:38:41,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:38:41,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1564393019, now seen corresponding path program 1 times [2021-11-23 02:38:41,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:38:41,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890110856] [2021-11-23 02:38:41,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:38:41,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:38:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:38:42,004 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:38:42,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:38:42,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890110856] [2021-11-23 02:38:42,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890110856] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:38:42,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:38:42,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:38:42,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926935333] [2021-11-23 02:38:42,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:38:42,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:38:42,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:38:42,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:38:42,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:38:42,008 INFO L87 Difference]: Start difference. First operand 80709 states and 105979 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:38:43,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:38:43,835 INFO L93 Difference]: Finished difference Result 80709 states and 105979 transitions. [2021-11-23 02:38:43,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:38:43,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-11-23 02:38:43,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:38:44,062 INFO L225 Difference]: With dead ends: 80709 [2021-11-23 02:38:44,063 INFO L226 Difference]: Without dead ends: 80703 [2021-11-23 02:38:44,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:38:44,112 INFO L933 BasicCegarLoop]: 13445 mSDtfsCounter, 13376 mSDsluCounter, 13331 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13376 SdHoareTripleChecker+Valid, 26776 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:38:44,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13376 Valid, 26776 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:38:44,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80703 states. [2021-11-23 02:38:46,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80703 to 80703. [2021-11-23 02:38:46,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80703 states, 80289 states have (on average 1.3160084195842519) internal successors, (105661), 80550 states have internal predecessors, (105661), 104 states have call successors, (104), 48 states have call predecessors, (104), 48 states have return successors, (208), 104 states have call predecessors, (208), 104 states have call successors, (208) [2021-11-23 02:38:46,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80703 states to 80703 states and 105973 transitions. [2021-11-23 02:38:46,439 INFO L78 Accepts]: Start accepts. Automaton has 80703 states and 105973 transitions. Word has length 94 [2021-11-23 02:38:46,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:38:46,440 INFO L470 AbstractCegarLoop]: Abstraction has 80703 states and 105973 transitions. [2021-11-23 02:38:46,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:38:46,441 INFO L276 IsEmpty]: Start isEmpty. Operand 80703 states and 105973 transitions. [2021-11-23 02:38:46,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-23 02:38:46,445 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:38:46,445 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 02:38:46,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:38:46,445 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [init_channelErr0ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr1ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr2ASSERT_VIOLATIONERROR_FUNCTION (and 262 more)] === [2021-11-23 02:38:46,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:38:46,446 INFO L85 PathProgramCache]: Analyzing trace with hash 143944990, now seen corresponding path program 1 times [2021-11-23 02:38:46,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:38:46,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598602191] [2021-11-23 02:38:46,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:38:46,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:38:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:38:46,964 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:38:46,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:38:46,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598602191] [2021-11-23 02:38:46,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598602191] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:38:46,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:38:46,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:38:46,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70698255] [2021-11-23 02:38:46,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:38:46,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:38:46,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:38:46,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:38:46,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:38:46,967 INFO L87 Difference]: Start difference. First operand 80703 states and 105973 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:38:48,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:38:48,367 INFO L93 Difference]: Finished difference Result 80703 states and 105973 transitions. [2021-11-23 02:38:48,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:38:48,367 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-11-23 02:38:48,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:38:48,783 INFO L225 Difference]: With dead ends: 80703 [2021-11-23 02:38:48,783 INFO L226 Difference]: Without dead ends: 80697 [2021-11-23 02:38:48,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:38:48,820 INFO L933 BasicCegarLoop]: 13439 mSDtfsCounter, 13365 mSDsluCounter, 13328 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13365 SdHoareTripleChecker+Valid, 26767 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:38:48,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13365 Valid, 26767 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:38:48,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80697 states. [2021-11-23 02:38:50,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80697 to 80697. [2021-11-23 02:38:50,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80697 states, 80286 states have (on average 1.3159828612709563) internal successors, (105655), 80544 states have internal predecessors, (105655), 104 states have call successors, (104), 48 states have call predecessors, (104), 48 states have return successors, (208), 104 states have call predecessors, (208), 104 states have call successors, (208) [2021-11-23 02:38:51,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80697 states to 80697 states and 105967 transitions. [2021-11-23 02:38:51,005 INFO L78 Accepts]: Start accepts. Automaton has 80697 states and 105967 transitions. Word has length 96 [2021-11-23 02:38:51,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:38:51,006 INFO L470 AbstractCegarLoop]: Abstraction has 80697 states and 105967 transitions. [2021-11-23 02:38:51,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:38:51,007 INFO L276 IsEmpty]: Start isEmpty. Operand 80697 states and 105967 transitions. [2021-11-23 02:38:51,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-23 02:38:51,012 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:38:51,012 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 02:38:51,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:38:51,013 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [init_channelErr0ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr1ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr2ASSERT_VIOLATIONERROR_FUNCTION (and 262 more)] === [2021-11-23 02:38:51,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:38:51,013 INFO L85 PathProgramCache]: Analyzing trace with hash 892989569, now seen corresponding path program 1 times [2021-11-23 02:38:51,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:38:51,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232002394] [2021-11-23 02:38:51,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:38:51,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:38:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:38:51,305 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:38:51,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:38:51,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232002394] [2021-11-23 02:38:51,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232002394] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:38:51,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:38:51,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:38:51,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533874388] [2021-11-23 02:38:51,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:38:51,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:38:51,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:38:51,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:38:51,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:38:51,308 INFO L87 Difference]: Start difference. First operand 80697 states and 105967 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:38:52,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:38:52,951 INFO L93 Difference]: Finished difference Result 80697 states and 105967 transitions. [2021-11-23 02:38:52,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:38:52,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-11-23 02:38:52,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:38:53,137 INFO L225 Difference]: With dead ends: 80697 [2021-11-23 02:38:53,138 INFO L226 Difference]: Without dead ends: 80691 [2021-11-23 02:38:53,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:38:53,179 INFO L933 BasicCegarLoop]: 13433 mSDtfsCounter, 13357 mSDsluCounter, 13325 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13357 SdHoareTripleChecker+Valid, 26758 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:38:53,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13357 Valid, 26758 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:38:53,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80691 states. [2021-11-23 02:38:54,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80691 to 80691. [2021-11-23 02:38:55,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80691 states, 80283 states have (on average 1.3159573010475443) internal successors, (105649), 80538 states have internal predecessors, (105649), 104 states have call successors, (104), 48 states have call predecessors, (104), 48 states have return successors, (208), 104 states have call predecessors, (208), 104 states have call successors, (208) [2021-11-23 02:38:55,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80691 states to 80691 states and 105961 transitions. [2021-11-23 02:38:55,209 INFO L78 Accepts]: Start accepts. Automaton has 80691 states and 105961 transitions. Word has length 98 [2021-11-23 02:38:55,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:38:55,209 INFO L470 AbstractCegarLoop]: Abstraction has 80691 states and 105961 transitions. [2021-11-23 02:38:55,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:38:55,210 INFO L276 IsEmpty]: Start isEmpty. Operand 80691 states and 105961 transitions. [2021-11-23 02:38:55,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-23 02:38:55,215 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:38:55,215 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 02:38:55,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:38:55,216 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [init_channelErr0ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr1ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr2ASSERT_VIOLATIONERROR_FUNCTION (and 262 more)] === [2021-11-23 02:38:55,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:38:55,216 INFO L85 PathProgramCache]: Analyzing trace with hash -829675420, now seen corresponding path program 1 times [2021-11-23 02:38:55,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:38:55,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981463405] [2021-11-23 02:38:55,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:38:55,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:38:55,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:38:55,502 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:38:55,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:38:55,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981463405] [2021-11-23 02:38:55,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981463405] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:38:55,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:38:55,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:38:55,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003532875] [2021-11-23 02:38:55,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:38:55,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:38:55,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:38:55,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:38:55,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:38:55,508 INFO L87 Difference]: Start difference. First operand 80691 states and 105961 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)