./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.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 527ba95af45b5d863cb3ca1867267fd54ac6958329e64d7162c5caa88bde96c3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-23 04:18:16,668 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 04:18:16,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 04:18:16,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 04:18:16,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 04:18:16,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 04:18:16,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 04:18:16,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 04:18:16,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 04:18:16,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 04:18:16,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 04:18:16,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 04:18:16,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 04:18:16,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 04:18:16,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 04:18:16,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 04:18:16,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 04:18:16,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 04:18:16,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 04:18:16,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 04:18:16,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 04:18:16,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 04:18:16,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 04:18:16,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 04:18:16,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 04:18:16,748 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 04:18:16,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 04:18:16,748 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 04:18:16,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 04:18:16,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 04:18:16,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 04:18:16,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 04:18:16,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 04:18:16,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 04:18:16,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 04:18:16,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 04:18:16,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 04:18:16,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 04:18:16,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 04:18:16,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 04:18:16,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 04:18:16,757 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 04:18:16,772 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 04:18:16,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 04:18:16,772 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 04:18:16,773 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 04:18:16,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 04:18:16,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 04:18:16,774 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 04:18:16,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 04:18:16,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 04:18:16,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 04:18:16,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 04:18:16,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 04:18:16,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 04:18:16,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 04:18:16,775 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 04:18:16,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 04:18:16,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 04:18:16,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 04:18:16,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 04:18:16,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 04:18:16,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 04:18:16,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 04:18:16,776 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 04:18:16,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 04:18:16,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 04:18:16,777 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 04:18:16,777 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 04:18:16,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 04:18:16,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 04:18:16,778 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 527ba95af45b5d863cb3ca1867267fd54ac6958329e64d7162c5caa88bde96c3 [2021-11-23 04:18:16,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 04:18:16,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 04:18:16,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 04:18:16,995 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 04:18:16,995 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 04:18:16,996 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-23 04:18:17,046 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d13c77f49/875b4d13a1be49a2890ccae5e4f39807/FLAGd85d8620e [2021-11-23 04:18:17,750 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 04:18:17,751 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-23 04:18:17,793 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d13c77f49/875b4d13a1be49a2890ccae5e4f39807/FLAGd85d8620e [2021-11-23 04:18:18,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d13c77f49/875b4d13a1be49a2890ccae5e4f39807 [2021-11-23 04:18:18,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 04:18:18,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 04:18:18,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 04:18:18,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 04:18:18,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 04:18:18,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:18:18" (1/1) ... [2021-11-23 04:18:18,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b8b20a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:18:18, skipping insertion in model container [2021-11-23 04:18:18,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:18:18" (1/1) ... [2021-11-23 04:18:18,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 04:18:18,185 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 04:18:20,358 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470813,470826] [2021-11-23 04:18:20,360 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470982,470995] [2021-11-23 04:18:20,364 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471149,471162] [2021-11-23 04:18:20,366 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471317,471330] [2021-11-23 04:18:20,396 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 04:18:20,436 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 04:18:20,767 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470813,470826] [2021-11-23 04:18:20,768 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470982,470995] [2021-11-23 04:18:20,768 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471149,471162] [2021-11-23 04:18:20,768 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471317,471330] [2021-11-23 04:18:20,782 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 04:18:20,956 INFO L208 MainTranslator]: Completed translation [2021-11-23 04:18:20,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:18:20 WrapperNode [2021-11-23 04:18:20,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 04:18:20,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 04:18:20,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 04:18:20,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 04:18:20,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:18:20" (1/1) ... [2021-11-23 04:18:21,078 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:18:20" (1/1) ... [2021-11-23 04:18:22,833 INFO L137 Inliner]: procedures = 526, calls = 4106, calls flagged for inlining = 1312, calls inlined = 10982, statements flattened = 105586 [2021-11-23 04:18:22,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 04:18:22,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 04:18:22,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 04:18:22,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 04:18:22,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:18:20" (1/1) ... [2021-11-23 04:18:22,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:18:20" (1/1) ... [2021-11-23 04:18:23,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:18:20" (1/1) ... [2021-11-23 04:18:23,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:18:20" (1/1) ... [2021-11-23 04:18:24,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:18:20" (1/1) ... [2021-11-23 04:18:24,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:18:20" (1/1) ... [2021-11-23 04:18:24,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:18:20" (1/1) ... [2021-11-23 04:18:25,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 04:18:25,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 04:18:25,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 04:18:25,341 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 04:18:25,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:18:20" (1/1) ... [2021-11-23 04:18:25,347 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 04:18:25,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 04:18:25,362 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 04:18:25,366 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 04:18:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure type4_infoblock [2021-11-23 04:18:25,384 INFO L138 BoogieDeclarations]: Found implementation of procedure type4_infoblock [2021-11-23 04:18:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure type2_infoblock [2021-11-23 04:18:25,384 INFO L138 BoogieDeclarations]: Found implementation of procedure type2_infoblock [2021-11-23 04:18:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure type0_infoblock [2021-11-23 04:18:25,384 INFO L138 BoogieDeclarations]: Found implementation of procedure type0_infoblock [2021-11-23 04:18:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure dc21143_infoleaf [2021-11-23 04:18:25,385 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21143_infoleaf [2021-11-23 04:18:25,385 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-11-23 04:18:25,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 04:18:25,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 04:18:25,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 04:18:25,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 04:18:25,385 INFO L130 BoogieDeclarations]: Found specification of procedure srom_autoconf [2021-11-23 04:18:25,385 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_autoconf [2021-11-23 04:18:25,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 04:18:25,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 04:18:25,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 04:18:25,386 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 04:18:25,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 04:18:25,386 INFO L130 BoogieDeclarations]: Found specification of procedure dc21142_infoleaf [2021-11-23 04:18:25,386 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21142_infoleaf [2021-11-23 04:18:25,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 04:18:25,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 04:18:25,386 INFO L130 BoogieDeclarations]: Found specification of procedure type3_infoblock [2021-11-23 04:18:25,387 INFO L138 BoogieDeclarations]: Found implementation of procedure type3_infoblock [2021-11-23 04:18:25,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 04:18:25,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 04:18:25,387 INFO L130 BoogieDeclarations]: Found specification of procedure type5_infoblock [2021-11-23 04:18:25,387 INFO L138 BoogieDeclarations]: Found implementation of procedure type5_infoblock [2021-11-23 04:18:25,387 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140m_autoconf [2021-11-23 04:18:25,387 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140m_autoconf [2021-11-23 04:18:25,387 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_open [2021-11-23 04:18:25,388 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_open [2021-11-23 04:18:25,388 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_autoconf [2021-11-23 04:18:25,388 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_autoconf [2021-11-23 04:18:25,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 04:18:25,388 INFO L130 BoogieDeclarations]: Found specification of procedure autoconf_media [2021-11-23 04:18:25,388 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconf_media [2021-11-23 04:18:25,388 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_autoconf [2021-11-23 04:18:25,388 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_autoconf [2021-11-23 04:18:25,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 04:18:25,389 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ast [2021-11-23 04:18:25,389 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ast [2021-11-23 04:18:25,389 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2021-11-23 04:18:25,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2021-11-23 04:18:25,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 04:18:25,390 INFO L130 BoogieDeclarations]: Found specification of procedure type1_infoblock [2021-11-23 04:18:25,390 INFO L138 BoogieDeclarations]: Found implementation of procedure type1_infoblock [2021-11-23 04:18:25,390 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140_infoleaf [2021-11-23 04:18:25,390 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140_infoleaf [2021-11-23 04:18:25,390 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init [2021-11-23 04:18:25,391 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init [2021-11-23 04:18:25,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 04:18:25,391 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_suspect_state [2021-11-23 04:18:25,391 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_suspect_state [2021-11-23 04:18:25,392 INFO L130 BoogieDeclarations]: Found specification of procedure compact_infoblock [2021-11-23 04:18:25,392 INFO L138 BoogieDeclarations]: Found implementation of procedure compact_infoblock [2021-11-23 04:18:25,392 INFO L130 BoogieDeclarations]: Found specification of procedure dc2114x_autoconf [2021-11-23 04:18:25,392 INFO L138 BoogieDeclarations]: Found implementation of procedure dc2114x_autoconf [2021-11-23 04:18:25,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 04:18:25,392 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-23 04:18:26,897 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 04:18:26,898 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 04:18:55,856 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L15087: #t~ret2697#1 := main_#res#1;assume { :end_inline_main } true; [2021-11-23 04:18:55,856 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_5_switch_break#1: call ULTIMATE.dealloc(ldv_pci_pci_instance_5_~#ldv_5_resource_pm_message~0#1.base, ldv_pci_pci_instance_5_~#ldv_5_resource_pm_message~0#1.offset);havoc ldv_pci_pci_instance_5_~#ldv_5_resource_pm_message~0#1.base, ldv_pci_pci_instance_5_~#ldv_5_resource_pm_message~0#1.offset; [2021-11-23 04:18:55,857 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 04:18:55,857 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_17_returnLabel#1: assume { :end_inline_ldv_entry_EMGentry_17 } true;main_#res#1 := 0; [2021-11-23 04:18:56,081 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 04:18:56,154 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 04:18:56,155 INFO L301 CfgBuilder]: Removed 154 assume(true) statements. [2021-11-23 04:18:56,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:18:56 BoogieIcfgContainer [2021-11-23 04:18:56,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 04:18:56,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 04:18:56,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 04:18:56,173 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 04:18:56,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:18:18" (1/3) ... [2021-11-23 04:18:56,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496e8262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:18:56, skipping insertion in model container [2021-11-23 04:18:56,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:18:20" (2/3) ... [2021-11-23 04:18:56,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496e8262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:18:56, skipping insertion in model container [2021-11-23 04:18:56,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:18:56" (3/3) ... [2021-11-23 04:18:56,175 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-23 04:18:56,179 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 04:18:56,179 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 98 error locations. [2021-11-23 04:18:56,255 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 04:18:56,261 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 04:18:56,261 INFO L340 AbstractCegarLoop]: Starting to check reachability of 98 error locations. [2021-11-23 04:18:56,448 INFO L276 IsEmpty]: Start isEmpty. Operand has 19857 states, 19650 states have (on average 1.2668702290076337) internal successors, (24894), 19748 states have internal predecessors, (24894), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-23 04:18:56,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 04:18:56,453 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:18:56,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:18:56,455 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-23 04:18:56,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:18:56,458 INFO L85 PathProgramCache]: Analyzing trace with hash 184564869, now seen corresponding path program 1 times [2021-11-23 04:18:56,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:18:56,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020679515] [2021-11-23 04:18:56,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:18:56,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:18:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:18:56,895 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 04:18:56,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:18:56,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020679515] [2021-11-23 04:18:56,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020679515] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:18:56,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:18:56,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:18:56,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317613224] [2021-11-23 04:18:56,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:18:56,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:18:56,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:18:56,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:18:56,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:18:56,947 INFO L87 Difference]: Start difference. First operand has 19857 states, 19650 states have (on average 1.2668702290076337) internal successors, (24894), 19748 states have internal predecessors, (24894), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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 04:18:57,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:18:57,749 INFO L93 Difference]: Finished difference Result 39067 states and 49415 transitions. [2021-11-23 04:18:57,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:18:57,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2021-11-23 04:18:57,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:18:57,831 INFO L225 Difference]: With dead ends: 39067 [2021-11-23 04:18:57,831 INFO L226 Difference]: Without dead ends: 19091 [2021-11-23 04:18:57,984 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 04:18:57,986 INFO L933 BasicCegarLoop]: 24005 mSDtfsCounter, 23998 mSDsluCounter, 23927 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23998 SdHoareTripleChecker+Valid, 47932 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 04:18:57,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23998 Valid, 47932 Invalid, 78 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 04:18:58,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19091 states. [2021-11-23 04:18:58,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19091 to 19091. [2021-11-23 04:18:58,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19091 states, 18886 states have (on average 1.2459493804934871) internal successors, (23531), 18982 states have internal predecessors, (23531), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-23 04:18:58,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19091 states to 19091 states and 23705 transitions. [2021-11-23 04:18:58,825 INFO L78 Accepts]: Start accepts. Automaton has 19091 states and 23705 transitions. Word has length 22 [2021-11-23 04:18:58,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:18:58,825 INFO L470 AbstractCegarLoop]: Abstraction has 19091 states and 23705 transitions. [2021-11-23 04:18:58,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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 04:18:58,826 INFO L276 IsEmpty]: Start isEmpty. Operand 19091 states and 23705 transitions. [2021-11-23 04:18:58,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 04:18:58,826 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:18:58,827 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:18:58,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 04:18:58,827 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-23 04:18:58,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:18:58,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1275097800, now seen corresponding path program 1 times [2021-11-23 04:18:58,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:18:58,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890749297] [2021-11-23 04:18:58,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:18:58,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:18:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:18:58,969 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 04:18:58,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:18:58,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890749297] [2021-11-23 04:18:58,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890749297] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:18:58,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:18:58,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:18:58,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518826519] [2021-11-23 04:18:58,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:18:58,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:18:58,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:18:58,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:18:58,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:18:58,971 INFO L87 Difference]: Start difference. First operand 19091 states and 23705 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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 04:18:59,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:18:59,410 INFO L93 Difference]: Finished difference Result 19091 states and 23705 transitions. [2021-11-23 04:18:59,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:18:59,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2021-11-23 04:18:59,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:18:59,469 INFO L225 Difference]: With dead ends: 19091 [2021-11-23 04:18:59,469 INFO L226 Difference]: Without dead ends: 19087 [2021-11-23 04:18:59,479 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 04:18:59,480 INFO L933 BasicCegarLoop]: 23697 mSDtfsCounter, 23680 mSDsluCounter, 23629 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23680 SdHoareTripleChecker+Valid, 47326 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 04:18:59,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23680 Valid, 47326 Invalid, 76 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 04:18:59,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19087 states. [2021-11-23 04:18:59,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19087 to 19087. [2021-11-23 04:18:59,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19087 states, 18884 states have (on average 1.2458695191696674) internal successors, (23527), 18978 states have internal predecessors, (23527), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-23 04:19:00,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19087 states to 19087 states and 23701 transitions. [2021-11-23 04:19:00,032 INFO L78 Accepts]: Start accepts. Automaton has 19087 states and 23701 transitions. Word has length 24 [2021-11-23 04:19:00,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:19:00,032 INFO L470 AbstractCegarLoop]: Abstraction has 19087 states and 23701 transitions. [2021-11-23 04:19:00,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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 04:19:00,033 INFO L276 IsEmpty]: Start isEmpty. Operand 19087 states and 23701 transitions. [2021-11-23 04:19:00,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 04:19:00,034 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:19:00,034 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:19:00,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 04:19:00,034 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-23 04:19:00,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:19:00,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1305224587, now seen corresponding path program 1 times [2021-11-23 04:19:00,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:19:00,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920748604] [2021-11-23 04:19:00,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:19:00,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:19:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:19:00,192 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 04:19:00,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:19:00,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920748604] [2021-11-23 04:19:00,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920748604] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:19:00,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:19:00,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:19:00,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421590008] [2021-11-23 04:19:00,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:19:00,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:19:00,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:19:00,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:19:00,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:19:00,194 INFO L87 Difference]: Start difference. First operand 19087 states and 23701 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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 04:19:00,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:19:00,623 INFO L93 Difference]: Finished difference Result 19087 states and 23701 transitions. [2021-11-23 04:19:00,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:19:00,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2021-11-23 04:19:00,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:19:00,668 INFO L225 Difference]: With dead ends: 19087 [2021-11-23 04:19:00,669 INFO L226 Difference]: Without dead ends: 19083 [2021-11-23 04:19:00,680 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 04:19:00,681 INFO L933 BasicCegarLoop]: 23693 mSDtfsCounter, 23674 mSDsluCounter, 23627 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23674 SdHoareTripleChecker+Valid, 47320 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 04:19:00,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23674 Valid, 47320 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 04:19:00,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19083 states. [2021-11-23 04:19:01,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19083 to 19083. [2021-11-23 04:19:01,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19083 states, 18882 states have (on average 1.2457896409278677) internal successors, (23523), 18974 states have internal predecessors, (23523), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-23 04:19:01,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19083 states to 19083 states and 23697 transitions. [2021-11-23 04:19:01,167 INFO L78 Accepts]: Start accepts. Automaton has 19083 states and 23697 transitions. Word has length 26 [2021-11-23 04:19:01,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:19:01,167 INFO L470 AbstractCegarLoop]: Abstraction has 19083 states and 23697 transitions. [2021-11-23 04:19:01,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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 04:19:01,168 INFO L276 IsEmpty]: Start isEmpty. Operand 19083 states and 23697 transitions. [2021-11-23 04:19:01,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-23 04:19:01,168 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:19:01,168 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:19:01,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 04:19:01,169 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-23 04:19:01,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:19:01,169 INFO L85 PathProgramCache]: Analyzing trace with hash 192296142, now seen corresponding path program 1 times [2021-11-23 04:19:01,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:19:01,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176788223] [2021-11-23 04:19:01,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:19:01,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:19:01,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:19:01,335 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 04:19:01,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:19:01,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176788223] [2021-11-23 04:19:01,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176788223] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:19:01,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:19:01,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:19:01,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408415616] [2021-11-23 04:19:01,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:19:01,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:19:01,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:19:01,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:19:01,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:19:01,340 INFO L87 Difference]: Start difference. First operand 19083 states and 23697 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 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 04:19:02,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:19:02,024 INFO L93 Difference]: Finished difference Result 19083 states and 23697 transitions. [2021-11-23 04:19:02,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:19:02,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 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 28 [2021-11-23 04:19:02,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:19:02,074 INFO L225 Difference]: With dead ends: 19083 [2021-11-23 04:19:02,075 INFO L226 Difference]: Without dead ends: 19079 [2021-11-23 04:19:02,090 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 04:19:02,090 INFO L933 BasicCegarLoop]: 23689 mSDtfsCounter, 23668 mSDsluCounter, 23625 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23668 SdHoareTripleChecker+Valid, 47314 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 04:19:02,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23668 Valid, 47314 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 04:19:02,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19079 states. [2021-11-23 04:19:02,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19079 to 19079. [2021-11-23 04:19:02,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19079 states, 18880 states have (on average 1.2457097457627118) internal successors, (23519), 18970 states have internal predecessors, (23519), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-23 04:19:02,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19079 states to 19079 states and 23693 transitions. [2021-11-23 04:19:02,617 INFO L78 Accepts]: Start accepts. Automaton has 19079 states and 23693 transitions. Word has length 28 [2021-11-23 04:19:02,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:19:02,617 INFO L470 AbstractCegarLoop]: Abstraction has 19079 states and 23693 transitions. [2021-11-23 04:19:02,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 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 04:19:02,618 INFO L276 IsEmpty]: Start isEmpty. Operand 19079 states and 23693 transitions. [2021-11-23 04:19:02,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 04:19:02,619 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:19:02,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:19:02,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 04:19:02,619 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-23 04:19:02,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:19:02,620 INFO L85 PathProgramCache]: Analyzing trace with hash 114917521, now seen corresponding path program 1 times [2021-11-23 04:19:02,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:19:02,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612995128] [2021-11-23 04:19:02,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:19:02,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:19:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:19:02,794 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 04:19:02,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:19:02,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612995128] [2021-11-23 04:19:02,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612995128] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:19:02,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:19:02,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:19:02,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467808015] [2021-11-23 04:19:02,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:19:02,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:19:02,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:19:02,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:19:02,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:19:02,796 INFO L87 Difference]: Start difference. First operand 19079 states and 23693 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 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 04:19:03,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:19:03,236 INFO L93 Difference]: Finished difference Result 19079 states and 23693 transitions. [2021-11-23 04:19:03,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:19:03,236 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 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 30 [2021-11-23 04:19:03,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:19:03,278 INFO L225 Difference]: With dead ends: 19079 [2021-11-23 04:19:03,279 INFO L226 Difference]: Without dead ends: 19075 [2021-11-23 04:19:03,289 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 04:19:03,290 INFO L933 BasicCegarLoop]: 23685 mSDtfsCounter, 23662 mSDsluCounter, 23623 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23662 SdHoareTripleChecker+Valid, 47308 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 04:19:03,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23662 Valid, 47308 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 04:19:03,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19075 states. [2021-11-23 04:19:03,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19075 to 19075. [2021-11-23 04:19:03,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19075 states, 18878 states have (on average 1.2456298336688207) internal successors, (23515), 18966 states have internal predecessors, (23515), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-23 04:19:03,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19075 states to 19075 states and 23689 transitions. [2021-11-23 04:19:03,803 INFO L78 Accepts]: Start accepts. Automaton has 19075 states and 23689 transitions. Word has length 30 [2021-11-23 04:19:03,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:19:03,803 INFO L470 AbstractCegarLoop]: Abstraction has 19075 states and 23689 transitions. [2021-11-23 04:19:03,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 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 04:19:03,804 INFO L276 IsEmpty]: Start isEmpty. Operand 19075 states and 23689 transitions. [2021-11-23 04:19:03,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 04:19:03,806 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:19:03,806 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] [2021-11-23 04:19:03,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 04:19:03,807 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-23 04:19:03,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:19:03,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1231492908, now seen corresponding path program 1 times [2021-11-23 04:19:03,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:19:03,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420900257] [2021-11-23 04:19:03,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:19:03,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:19:03,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:19:03,942 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 04:19:03,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:19:03,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420900257] [2021-11-23 04:19:03,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420900257] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:19:03,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:19:03,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:19:03,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803220215] [2021-11-23 04:19:03,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:19:03,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:19:03,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:19:03,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:19:03,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:19:03,945 INFO L87 Difference]: Start difference. First operand 19075 states and 23689 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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 04:19:04,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:19:04,515 INFO L93 Difference]: Finished difference Result 19075 states and 23689 transitions. [2021-11-23 04:19:04,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:19:04,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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 32 [2021-11-23 04:19:04,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:19:04,565 INFO L225 Difference]: With dead ends: 19075 [2021-11-23 04:19:04,566 INFO L226 Difference]: Without dead ends: 19071 [2021-11-23 04:19:04,577 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 04:19:04,579 INFO L933 BasicCegarLoop]: 23681 mSDtfsCounter, 23656 mSDsluCounter, 23621 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23656 SdHoareTripleChecker+Valid, 47302 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 04:19:04,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23656 Valid, 47302 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 04:19:04,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19071 states. [2021-11-23 04:19:05,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19071 to 19071. [2021-11-23 04:19:05,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19071 states, 18876 states have (on average 1.2455499046408138) internal successors, (23511), 18962 states have internal predecessors, (23511), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-23 04:19:05,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19071 states to 19071 states and 23685 transitions. [2021-11-23 04:19:05,270 INFO L78 Accepts]: Start accepts. Automaton has 19071 states and 23685 transitions. Word has length 32 [2021-11-23 04:19:05,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:19:05,270 INFO L470 AbstractCegarLoop]: Abstraction has 19071 states and 23685 transitions. [2021-11-23 04:19:05,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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 04:19:05,270 INFO L276 IsEmpty]: Start isEmpty. Operand 19071 states and 23685 transitions. [2021-11-23 04:19:05,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 04:19:05,274 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:19:05,274 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] [2021-11-23 04:19:05,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 04:19:05,275 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-23 04:19:05,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:19:05,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1948208535, now seen corresponding path program 1 times [2021-11-23 04:19:05,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:19:05,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628401107] [2021-11-23 04:19:05,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:19:05,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:19:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:19:05,451 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 04:19:05,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:19:05,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628401107] [2021-11-23 04:19:05,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628401107] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:19:05,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:19:05,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:19:05,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035458524] [2021-11-23 04:19:05,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:19:05,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:19:05,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:19:05,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:19:05,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:19:05,456 INFO L87 Difference]: Start difference. First operand 19071 states and 23685 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 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 04:19:06,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:19:06,114 INFO L93 Difference]: Finished difference Result 19071 states and 23685 transitions. [2021-11-23 04:19:06,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:19:06,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 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 34 [2021-11-23 04:19:06,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:19:06,167 INFO L225 Difference]: With dead ends: 19071 [2021-11-23 04:19:06,167 INFO L226 Difference]: Without dead ends: 19067 [2021-11-23 04:19:06,182 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 04:19:06,183 INFO L933 BasicCegarLoop]: 23677 mSDtfsCounter, 23650 mSDsluCounter, 23619 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23650 SdHoareTripleChecker+Valid, 47296 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 04:19:06,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23650 Valid, 47296 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 04:19:06,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19067 states. [2021-11-23 04:19:06,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19067 to 19067. [2021-11-23 04:19:06,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19067 states, 18874 states have (on average 1.2454699586733071) internal successors, (23507), 18958 states have internal predecessors, (23507), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-23 04:19:06,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19067 states to 19067 states and 23681 transitions. [2021-11-23 04:19:06,892 INFO L78 Accepts]: Start accepts. Automaton has 19067 states and 23681 transitions. Word has length 34 [2021-11-23 04:19:06,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:19:06,894 INFO L470 AbstractCegarLoop]: Abstraction has 19067 states and 23681 transitions. [2021-11-23 04:19:06,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 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 04:19:06,894 INFO L276 IsEmpty]: Start isEmpty. Operand 19067 states and 23681 transitions. [2021-11-23 04:19:06,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-23 04:19:06,896 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:19:06,896 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] [2021-11-23 04:19:06,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 04:19:06,897 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-23 04:19:06,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:19:06,898 INFO L85 PathProgramCache]: Analyzing trace with hash -375419174, now seen corresponding path program 1 times [2021-11-23 04:19:06,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:19:06,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063041190] [2021-11-23 04:19:06,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:19:06,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:19:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:19:07,085 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 04:19:07,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:19:07,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063041190] [2021-11-23 04:19:07,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063041190] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:19:07,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:19:07,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:19:07,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649757822] [2021-11-23 04:19:07,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:19:07,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:19:07,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:19:07,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:19:07,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:19:07,088 INFO L87 Difference]: Start difference. First operand 19067 states and 23681 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 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 04:19:08,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:19:08,053 INFO L93 Difference]: Finished difference Result 19163 states and 23795 transitions. [2021-11-23 04:19:08,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:19:08,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 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 36 [2021-11-23 04:19:08,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:19:08,097 INFO L225 Difference]: With dead ends: 19163 [2021-11-23 04:19:08,098 INFO L226 Difference]: Without dead ends: 19159 [2021-11-23 04:19:08,111 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 04:19:08,112 INFO L933 BasicCegarLoop]: 23713 mSDtfsCounter, 21541 mSDsluCounter, 25720 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21541 SdHoareTripleChecker+Valid, 49433 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 04:19:08,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21541 Valid, 49433 Invalid, 364 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 04:19:08,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19159 states. [2021-11-23 04:19:08,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19159 to 19063. [2021-11-23 04:19:08,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19063 states, 18872 states have (on average 1.2453899957609156) internal successors, (23503), 18954 states have internal predecessors, (23503), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-23 04:19:08,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19063 states to 19063 states and 23677 transitions. [2021-11-23 04:19:08,830 INFO L78 Accepts]: Start accepts. Automaton has 19063 states and 23677 transitions. Word has length 36 [2021-11-23 04:19:08,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:19:08,830 INFO L470 AbstractCegarLoop]: Abstraction has 19063 states and 23677 transitions. [2021-11-23 04:19:08,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 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 04:19:08,831 INFO L276 IsEmpty]: Start isEmpty. Operand 19063 states and 23677 transitions. [2021-11-23 04:19:08,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 04:19:08,831 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:19:08,831 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] [2021-11-23 04:19:08,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 04:19:08,832 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-23 04:19:08,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:19:08,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1346717, now seen corresponding path program 1 times [2021-11-23 04:19:08,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:19:08,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916316682] [2021-11-23 04:19:08,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:19:08,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:19:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:19:08,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:19:08,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:19:08,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916316682] [2021-11-23 04:19:08,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916316682] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:19:08,964 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:19:08,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:19:08,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799069805] [2021-11-23 04:19:08,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:19:08,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:19:08,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:19:08,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:19:08,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:19:08,966 INFO L87 Difference]: Start difference. First operand 19063 states and 23677 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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 04:19:09,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:19:09,591 INFO L93 Difference]: Finished difference Result 19063 states and 23677 transitions. [2021-11-23 04:19:09,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:19:09,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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 38 [2021-11-23 04:19:09,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:19:09,625 INFO L225 Difference]: With dead ends: 19063 [2021-11-23 04:19:09,626 INFO L226 Difference]: Without dead ends: 19059 [2021-11-23 04:19:09,636 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 04:19:09,638 INFO L933 BasicCegarLoop]: 23669 mSDtfsCounter, 23638 mSDsluCounter, 23615 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23638 SdHoareTripleChecker+Valid, 47284 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 04:19:09,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23638 Valid, 47284 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 04:19:09,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19059 states. [2021-11-23 04:19:10,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19059 to 19059. [2021-11-23 04:19:10,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19059 states, 18870 states have (on average 1.2453100158982513) internal successors, (23499), 18950 states have internal predecessors, (23499), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-23 04:19:10,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19059 states to 19059 states and 23673 transitions. [2021-11-23 04:19:10,303 INFO L78 Accepts]: Start accepts. Automaton has 19059 states and 23673 transitions. Word has length 38 [2021-11-23 04:19:10,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:19:10,304 INFO L470 AbstractCegarLoop]: Abstraction has 19059 states and 23673 transitions. [2021-11-23 04:19:10,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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 04:19:10,304 INFO L276 IsEmpty]: Start isEmpty. Operand 19059 states and 23673 transitions. [2021-11-23 04:19:10,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 04:19:10,305 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:19:10,306 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] [2021-11-23 04:19:10,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 04:19:10,306 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-23 04:19:10,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:19:10,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1296115424, now seen corresponding path program 1 times [2021-11-23 04:19:10,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:19:10,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84990105] [2021-11-23 04:19:10,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:19:10,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:19:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:19:10,461 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 04:19:10,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:19:10,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84990105] [2021-11-23 04:19:10,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84990105] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:19:10,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:19:10,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:19:10,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157468020] [2021-11-23 04:19:10,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:19:10,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:19:10,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:19:10,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:19:10,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:19:10,464 INFO L87 Difference]: Start difference. First operand 19059 states and 23673 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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 04:19:11,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:19:11,133 INFO L93 Difference]: Finished difference Result 19059 states and 23673 transitions. [2021-11-23 04:19:11,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:19:11,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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 40 [2021-11-23 04:19:11,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:19:11,162 INFO L225 Difference]: With dead ends: 19059 [2021-11-23 04:19:11,162 INFO L226 Difference]: Without dead ends: 19055 [2021-11-23 04:19:11,170 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 04:19:11,170 INFO L933 BasicCegarLoop]: 23665 mSDtfsCounter, 23632 mSDsluCounter, 23613 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23632 SdHoareTripleChecker+Valid, 47278 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 04:19:11,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23632 Valid, 47278 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 04:19:11,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19055 states. [2021-11-23 04:19:11,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19055 to 19055. [2021-11-23 04:19:11,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19055 states, 18868 states have (on average 1.2452300190799237) internal successors, (23495), 18946 states have internal predecessors, (23495), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-23 04:19:11,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19055 states to 19055 states and 23669 transitions. [2021-11-23 04:19:11,749 INFO L78 Accepts]: Start accepts. Automaton has 19055 states and 23669 transitions. Word has length 40 [2021-11-23 04:19:11,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:19:11,749 INFO L470 AbstractCegarLoop]: Abstraction has 19055 states and 23669 transitions. [2021-11-23 04:19:11,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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 04:19:11,749 INFO L276 IsEmpty]: Start isEmpty. Operand 19055 states and 23669 transitions. [2021-11-23 04:19:11,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-23 04:19:11,750 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:19:11,750 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] [2021-11-23 04:19:11,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 04:19:11,750 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-23 04:19:11,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:19:11,751 INFO L85 PathProgramCache]: Analyzing trace with hash 28327331, now seen corresponding path program 1 times [2021-11-23 04:19:11,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:19:11,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586694417] [2021-11-23 04:19:11,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:19:11,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:19:11,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:19:11,862 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 04:19:11,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:19:11,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586694417] [2021-11-23 04:19:11,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586694417] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:19:11,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:19:11,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:19:11,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60168108] [2021-11-23 04:19:11,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:19:11,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:19:11,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:19:11,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:19:11,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:19:11,864 INFO L87 Difference]: Start difference. First operand 19055 states and 23669 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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 04:19:12,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:19:12,617 INFO L93 Difference]: Finished difference Result 19055 states and 23669 transitions. [2021-11-23 04:19:12,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:19:12,617 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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 42 [2021-11-23 04:19:12,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:19:12,646 INFO L225 Difference]: With dead ends: 19055 [2021-11-23 04:19:12,647 INFO L226 Difference]: Without dead ends: 19051 [2021-11-23 04:19:12,654 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 04:19:12,654 INFO L933 BasicCegarLoop]: 23661 mSDtfsCounter, 23626 mSDsluCounter, 23611 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23626 SdHoareTripleChecker+Valid, 47272 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 04:19:12,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23626 Valid, 47272 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 04:19:12,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19051 states. [2021-11-23 04:19:13,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19051 to 19051. [2021-11-23 04:19:13,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19051 states, 18866 states have (on average 1.2451500053005407) internal successors, (23491), 18942 states have internal predecessors, (23491), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-23 04:19:13,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19051 states to 19051 states and 23665 transitions. [2021-11-23 04:19:13,288 INFO L78 Accepts]: Start accepts. Automaton has 19051 states and 23665 transitions. Word has length 42 [2021-11-23 04:19:13,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:19:13,288 INFO L470 AbstractCegarLoop]: Abstraction has 19051 states and 23665 transitions. [2021-11-23 04:19:13,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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 04:19:13,289 INFO L276 IsEmpty]: Start isEmpty. Operand 19051 states and 23665 transitions. [2021-11-23 04:19:13,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 04:19:13,289 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:19:13,289 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] [2021-11-23 04:19:13,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 04:19:13,290 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-23 04:19:13,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:19:13,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1454682342, now seen corresponding path program 1 times [2021-11-23 04:19:13,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:19:13,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775815440] [2021-11-23 04:19:13,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:19:13,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:19:13,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:19:13,414 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 04:19:13,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:19:13,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775815440] [2021-11-23 04:19:13,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775815440] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:19:13,415 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:19:13,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:19:13,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938002963] [2021-11-23 04:19:13,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:19:13,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:19:13,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:19:13,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:19:13,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:19:13,416 INFO L87 Difference]: Start difference. First operand 19051 states and 23665 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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 04:19:14,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:19:14,117 INFO L93 Difference]: Finished difference Result 19051 states and 23665 transitions. [2021-11-23 04:19:14,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:19:14,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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 44 [2021-11-23 04:19:14,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:19:14,153 INFO L225 Difference]: With dead ends: 19051 [2021-11-23 04:19:14,153 INFO L226 Difference]: Without dead ends: 19047 [2021-11-23 04:19:14,165 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 04:19:14,165 INFO L933 BasicCegarLoop]: 23657 mSDtfsCounter, 23620 mSDsluCounter, 23609 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23620 SdHoareTripleChecker+Valid, 47266 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 04:19:14,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23620 Valid, 47266 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 04:19:14,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19047 states. [2021-11-23 04:19:14,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19047 to 19047. [2021-11-23 04:19:14,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19047 states, 18864 states have (on average 1.2450699745547074) internal successors, (23487), 18938 states have internal predecessors, (23487), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-23 04:19:15,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19047 states to 19047 states and 23661 transitions. [2021-11-23 04:19:15,046 INFO L78 Accepts]: Start accepts. Automaton has 19047 states and 23661 transitions. Word has length 44 [2021-11-23 04:19:15,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:19:15,047 INFO L470 AbstractCegarLoop]: Abstraction has 19047 states and 23661 transitions. [2021-11-23 04:19:15,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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 04:19:15,047 INFO L276 IsEmpty]: Start isEmpty. Operand 19047 states and 23661 transitions. [2021-11-23 04:19:15,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 04:19:15,047 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:19:15,047 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] [2021-11-23 04:19:15,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 04:19:15,048 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-23 04:19:15,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:19:15,048 INFO L85 PathProgramCache]: Analyzing trace with hash 2087280809, now seen corresponding path program 1 times [2021-11-23 04:19:15,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:19:15,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132214326] [2021-11-23 04:19:15,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:19:15,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:19:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:19:15,163 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 04:19:15,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:19:15,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132214326] [2021-11-23 04:19:15,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132214326] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:19:15,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:19:15,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:19:15,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943513898] [2021-11-23 04:19:15,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:19:15,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:19:15,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:19:15,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:19:15,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:19:15,165 INFO L87 Difference]: Start difference. First operand 19047 states and 23661 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 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 04:19:15,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:19:15,896 INFO L93 Difference]: Finished difference Result 19047 states and 23661 transitions. [2021-11-23 04:19:15,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:19:15,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 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 46 [2021-11-23 04:19:15,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:19:15,929 INFO L225 Difference]: With dead ends: 19047 [2021-11-23 04:19:15,929 INFO L226 Difference]: Without dead ends: 18967 [2021-11-23 04:19:15,941 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 04:19:15,942 INFO L933 BasicCegarLoop]: 23655 mSDtfsCounter, 23612 mSDsluCounter, 23607 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23612 SdHoareTripleChecker+Valid, 47262 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 04:19:15,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23612 Valid, 47262 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 04:19:15,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18967 states. [2021-11-23 04:19:16,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18967 to 18967. [2021-11-23 04:19:16,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18967 states, 18786 states have (on average 1.2459278185883105) internal successors, (23406), 18858 states have internal predecessors, (23406), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-23 04:19:16,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18967 states to 18967 states and 23580 transitions. [2021-11-23 04:19:16,909 INFO L78 Accepts]: Start accepts. Automaton has 18967 states and 23580 transitions. Word has length 46 [2021-11-23 04:19:16,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:19:16,909 INFO L470 AbstractCegarLoop]: Abstraction has 18967 states and 23580 transitions. [2021-11-23 04:19:16,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 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 04:19:16,909 INFO L276 IsEmpty]: Start isEmpty. Operand 18967 states and 23580 transitions. [2021-11-23 04:19:16,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-23 04:19:16,917 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:19:16,917 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, 1, 1, 1] [2021-11-23 04:19:16,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 04:19:16,917 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting dc21140m_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-23 04:19:16,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:19:16,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1931271443, now seen corresponding path program 1 times [2021-11-23 04:19:16,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:19:16,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642585294] [2021-11-23 04:19:16,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:19:16,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:19:17,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:19:17,111 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 04:19:17,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:19:17,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642585294] [2021-11-23 04:19:17,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642585294] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:19:17,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:19:17,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 04:19:17,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366961236] [2021-11-23 04:19:17,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:19:17,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:19:17,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:19:17,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:19:17,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:19:17,114 INFO L87 Difference]: Start difference. First operand 18967 states and 23580 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:19:18,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:19:18,002 INFO L93 Difference]: Finished difference Result 37904 states and 47128 transitions. [2021-11-23 04:19:18,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:19:18,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-23 04:19:18,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:19:18,056 INFO L225 Difference]: With dead ends: 37904 [2021-11-23 04:19:18,056 INFO L226 Difference]: Without dead ends: 18966 [2021-11-23 04:19:18,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 04:19:18,131 INFO L933 BasicCegarLoop]: 23576 mSDtfsCounter, 23545 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23545 SdHoareTripleChecker+Valid, 23576 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 04:19:18,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23545 Valid, 23576 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 04:19:18,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18966 states. [2021-11-23 04:19:18,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18966 to 18966. [2021-11-23 04:19:18,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18966 states, 18785 states have (on average 1.2458344423742347) internal successors, (23403), 18857 states have internal predecessors, (23403), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-23 04:19:18,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18966 states to 18966 states and 23577 transitions. [2021-11-23 04:19:18,958 INFO L78 Accepts]: Start accepts. Automaton has 18966 states and 23577 transitions. Word has length 81 [2021-11-23 04:19:18,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:19:18,958 INFO L470 AbstractCegarLoop]: Abstraction has 18966 states and 23577 transitions. [2021-11-23 04:19:18,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:19:18,959 INFO L276 IsEmpty]: Start isEmpty. Operand 18966 states and 23577 transitions. [2021-11-23 04:19:18,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-23 04:19:18,965 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:19:18,965 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, 1, 1, 1, 1] [2021-11-23 04:19:18,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-23 04:19:18,966 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting dc21140m_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-23 04:19:18,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:19:18,966 INFO L85 PathProgramCache]: Analyzing trace with hash 213875920, now seen corresponding path program 1 times [2021-11-23 04:19:18,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:19:18,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343679446] [2021-11-23 04:19:18,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:19:18,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:19:19,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:19:19,121 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 04:19:19,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:19:19,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343679446] [2021-11-23 04:19:19,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343679446] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:19:19,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:19:19,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:19:19,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709036206] [2021-11-23 04:19:19,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:19:19,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:19:19,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:19:19,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:19:19,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:19:19,123 INFO L87 Difference]: Start difference. First operand 18966 states and 23577 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)