./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.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 08c4ab5181b7abd6700c38bd6f4a3ecc0debf94ce89805012c81d15880051c78 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 20:47:56,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 20:47:56,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 20:47:57,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 20:47:57,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 20:47:57,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 20:47:57,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 20:47:57,011 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 20:47:57,013 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 20:47:57,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 20:47:57,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 20:47:57,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 20:47:57,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 20:47:57,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 20:47:57,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 20:47:57,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 20:47:57,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 20:47:57,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 20:47:57,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 20:47:57,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 20:47:57,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 20:47:57,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 20:47:57,038 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 20:47:57,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 20:47:57,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 20:47:57,043 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 20:47:57,043 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 20:47:57,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 20:47:57,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 20:47:57,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 20:47:57,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 20:47:57,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 20:47:57,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 20:47:57,047 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 20:47:57,048 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 20:47:57,048 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 20:47:57,049 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 20:47:57,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 20:47:57,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 20:47:57,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 20:47:57,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 20:47:57,054 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 20:47:57,086 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 20:47:57,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 20:47:57,088 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 20:47:57,088 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 20:47:57,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 20:47:57,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 20:47:57,090 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 20:47:57,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 20:47:57,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 20:47:57,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 20:47:57,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 20:47:57,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 20:47:57,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 20:47:57,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 20:47:57,091 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 20:47:57,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 20:47:57,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 20:47:57,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 20:47:57,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 20:47:57,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:47:57,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 20:47:57,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 20:47:57,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 20:47:57,093 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 20:47:57,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 20:47:57,093 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 20:47:57,093 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 20:47:57,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 20:47:57,093 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 20:47:57,093 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08c4ab5181b7abd6700c38bd6f4a3ecc0debf94ce89805012c81d15880051c78 [2021-11-05 20:47:57,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 20:47:57,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 20:47:57,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 20:47:57,339 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 20:47:57,339 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 20:47:57,341 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2021-11-05 20:47:57,379 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50d4b801d/baf7074a5fb94597ae89ad392c234733/FLAG4f2b8200e [2021-11-05 20:47:58,089 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 20:47:58,090 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2021-11-05 20:47:58,133 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50d4b801d/baf7074a5fb94597ae89ad392c234733/FLAG4f2b8200e [2021-11-05 20:47:58,170 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50d4b801d/baf7074a5fb94597ae89ad392c234733 [2021-11-05 20:47:58,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 20:47:58,174 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 20:47:58,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 20:47:58,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 20:47:58,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 20:47:58,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:47:58" (1/1) ... [2021-11-05 20:47:58,181 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41c71de1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:47:58, skipping insertion in model container [2021-11-05 20:47:58,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:47:58" (1/1) ... [2021-11-05 20:47:58,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 20:47:58,315 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 20:48:01,648 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445714,445727] [2021-11-05 20:48:01,653 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445883,445896] [2021-11-05 20:48:01,653 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446050,446063] [2021-11-05 20:48:01,658 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446218,446231] [2021-11-05 20:48:01,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:48:01,766 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 20:48:02,285 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445714,445727] [2021-11-05 20:48:02,286 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445883,445896] [2021-11-05 20:48:02,286 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446050,446063] [2021-11-05 20:48:02,287 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446218,446231] [2021-11-05 20:48:02,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:48:02,545 INFO L208 MainTranslator]: Completed translation [2021-11-05 20:48:02,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:48:02 WrapperNode [2021-11-05 20:48:02,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 20:48:02,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 20:48:02,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 20:48:02,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 20:48:02,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:48:02" (1/1) ... [2021-11-05 20:48:02,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:48:02" (1/1) ... [2021-11-05 20:48:04,046 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 20:48:04,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 20:48:04,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 20:48:04,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 20:48:04,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:48:02" (1/1) ... [2021-11-05 20:48:04,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:48:02" (1/1) ... [2021-11-05 20:48:04,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:48:02" (1/1) ... [2021-11-05 20:48:04,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:48:02" (1/1) ... [2021-11-05 20:48:04,915 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:48:02" (1/1) ... [2021-11-05 20:48:05,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:48:02" (1/1) ... [2021-11-05 20:48:05,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:48:02" (1/1) ... [2021-11-05 20:48:05,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 20:48:05,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 20:48:05,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 20:48:05,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 20:48:05,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:48:02" (1/1) ... [2021-11-05 20:48:05,383 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:48:05,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 20:48:05,398 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) [2021-11-05 20:48:05,488 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 [2021-11-05 20:48:05,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 20:48:05,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 20:48:05,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 20:48:05,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 20:48:05,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 20:48:05,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 20:48:05,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 20:48:05,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 20:48:05,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 20:48:05,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 20:48:05,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 20:48:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 20:48:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 20:48:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 20:48:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 20:49:13,689 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-05 20:49:13,689 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-05 20:49:13,689 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 20:49:13,690 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 20:49:13,691 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 20:49:13,692 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 20:49:13,722 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 20:49:13,722 INFO L299 CfgBuilder]: Removed 9514 assume(true) statements. [2021-11-05 20:49:13,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:49:13 BoogieIcfgContainer [2021-11-05 20:49:13,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 20:49:13,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 20:49:13,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 20:49:13,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 20:49:13,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:47:58" (1/3) ... [2021-11-05 20:49:13,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22307d3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:49:13, skipping insertion in model container [2021-11-05 20:49:13,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:48:02" (2/3) ... [2021-11-05 20:49:13,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22307d3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:49:13, skipping insertion in model container [2021-11-05 20:49:13,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:49:13" (3/3) ... [2021-11-05 20:49:13,735 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2021-11-05 20:49:13,739 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 20:49:13,739 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 69 error locations. [2021-11-05 20:49:13,790 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 20:49:13,795 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 [2021-11-05 20:49:13,795 INFO L340 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2021-11-05 20:49:13,881 INFO L276 IsEmpty]: Start isEmpty. Operand has 9011 states, 8942 states have (on average 1.3325877879668977) internal successors, (11916), 9010 states have internal predecessors, (11916), 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) [2021-11-05 20:49:13,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-05 20:49:13,904 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:49:13,904 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] [2021-11-05 20:49:13,905 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-05 20:49:13,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:49:13,912 INFO L85 PathProgramCache]: Analyzing trace with hash -105954818, now seen corresponding path program 1 times [2021-11-05 20:49:13,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:49:13,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380203025] [2021-11-05 20:49:13,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:49:13,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:49:14,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:49:14,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:49:14,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:49:14,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380203025] [2021-11-05 20:49:14,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380203025] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:49:14,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:49:14,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:49:14,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574960884] [2021-11-05 20:49:14,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:49:14,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:49:14,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:49:14,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:49:14,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:49:14,485 INFO L87 Difference]: Start difference. First operand has 9011 states, 8942 states have (on average 1.3325877879668977) internal successors, (11916), 9010 states have internal predecessors, (11916), 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) Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2021-11-05 20:49:15,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:49:15,793 INFO L93 Difference]: Finished difference Result 26036 states and 34446 transitions. [2021-11-05 20:49:15,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:49:15,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 73 [2021-11-05 20:49:15,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:49:15,860 INFO L225 Difference]: With dead ends: 26036 [2021-11-05 20:49:15,860 INFO L226 Difference]: Without dead ends: 16776 [2021-11-05 20:49:15,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.66ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:49:15,887 INFO L933 BasicCegarLoop]: 11762 mSDtfsCounter, 11291 mSDsluCounter, 11212 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 664.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11291 SdHoareTripleChecker+Valid, 22974 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.88ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 731.74ms IncrementalHoareTripleChecker+Time [2021-11-05 20:49:15,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11291 Valid, 22974 Invalid, 74 Unknown, 0 Unchecked, 41.88ms Time], IncrementalHoareTripleChecker [18 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 731.74ms Time] [2021-11-05 20:49:15,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16776 states. [2021-11-05 20:49:16,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16776 to 16378. [2021-11-05 20:49:16,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16378 states, 16309 states have (on average 1.3054755043227666) internal successors, (21291), 16377 states have internal predecessors, (21291), 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) [2021-11-05 20:49:16,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16378 states to 16378 states and 21291 transitions. [2021-11-05 20:49:16,468 INFO L78 Accepts]: Start accepts. Automaton has 16378 states and 21291 transitions. Word has length 73 [2021-11-05 20:49:16,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:49:16,469 INFO L470 AbstractCegarLoop]: Abstraction has 16378 states and 21291 transitions. [2021-11-05 20:49:16,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2021-11-05 20:49:16,471 INFO L276 IsEmpty]: Start isEmpty. Operand 16378 states and 21291 transitions. [2021-11-05 20:49:16,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-05 20:49:16,478 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:49:16,478 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] [2021-11-05 20:49:16,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 20:49:16,479 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-05 20:49:16,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:49:16,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1581454207, now seen corresponding path program 1 times [2021-11-05 20:49:16,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:49:16,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152111217] [2021-11-05 20:49:16,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:49:16,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:49:16,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:49:16,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:49:16,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:49:16,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152111217] [2021-11-05 20:49:16,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152111217] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:49:16,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:49:16,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:49:16,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402909479] [2021-11-05 20:49:16,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:49:16,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:49:16,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:49:16,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:49:16,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:49:16,758 INFO L87 Difference]: Start difference. First operand 16378 states and 21291 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2021-11-05 20:49:18,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:49:18,048 INFO L93 Difference]: Finished difference Result 48592 states and 63290 transitions. [2021-11-05 20:49:18,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:49:18,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2021-11-05 20:49:18,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:49:18,134 INFO L225 Difference]: With dead ends: 48592 [2021-11-05 20:49:18,134 INFO L226 Difference]: Without dead ends: 32370 [2021-11-05 20:49:18,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.16ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:49:18,165 INFO L933 BasicCegarLoop]: 11279 mSDtfsCounter, 10929 mSDsluCounter, 11241 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 790.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10929 SdHoareTripleChecker+Valid, 22520 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.29ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 858.74ms IncrementalHoareTripleChecker+Time [2021-11-05 20:49:18,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10929 Valid, 22520 Invalid, 34 Unknown, 0 Unchecked, 24.29ms Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 858.74ms Time] [2021-11-05 20:49:18,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32370 states. [2021-11-05 20:49:18,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32370 to 32304. [2021-11-05 20:49:18,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32304 states, 32235 states have (on average 1.306871413060338) internal successors, (42127), 32303 states have internal predecessors, (42127), 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) [2021-11-05 20:49:19,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32304 states to 32304 states and 42127 transitions. [2021-11-05 20:49:19,018 INFO L78 Accepts]: Start accepts. Automaton has 32304 states and 42127 transitions. Word has length 75 [2021-11-05 20:49:19,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:49:19,020 INFO L470 AbstractCegarLoop]: Abstraction has 32304 states and 42127 transitions. [2021-11-05 20:49:19,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2021-11-05 20:49:19,025 INFO L276 IsEmpty]: Start isEmpty. Operand 32304 states and 42127 transitions. [2021-11-05 20:49:19,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-05 20:49:19,026 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:49:19,027 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] [2021-11-05 20:49:19,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 20:49:19,027 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-05 20:49:19,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:49:19,028 INFO L85 PathProgramCache]: Analyzing trace with hash 428041036, now seen corresponding path program 1 times [2021-11-05 20:49:19,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:49:19,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356316137] [2021-11-05 20:49:19,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:49:19,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:49:19,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:49:19,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:49:19,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:49:19,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356316137] [2021-11-05 20:49:19,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356316137] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:49:19,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:49:19,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:49:19,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602132919] [2021-11-05 20:49:19,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:49:19,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:49:19,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:49:19,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:49:19,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:49:19,261 INFO L87 Difference]: Start difference. First operand 32304 states and 42127 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-05 20:49:20,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:49:20,785 INFO L93 Difference]: Finished difference Result 91100 states and 118731 transitions. [2021-11-05 20:49:20,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:49:20,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 79 [2021-11-05 20:49:20,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:49:20,928 INFO L225 Difference]: With dead ends: 91100 [2021-11-05 20:49:20,928 INFO L226 Difference]: Without dead ends: 58952 [2021-11-05 20:49:20,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.21ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:49:20,999 INFO L933 BasicCegarLoop]: 11547 mSDtfsCounter, 9282 mSDsluCounter, 11213 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 533.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9282 SdHoareTripleChecker+Valid, 22760 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.64ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 593.87ms IncrementalHoareTripleChecker+Time [2021-11-05 20:49:21,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9282 Valid, 22760 Invalid, 65 Unknown, 0 Unchecked, 21.64ms Time], IncrementalHoareTripleChecker [25 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 593.87ms Time] [2021-11-05 20:49:21,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58952 states. [2021-11-05 20:49:22,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58952 to 57956. [2021-11-05 20:49:22,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57956 states, 57887 states have (on average 1.306113635185793) internal successors, (75607), 57955 states have internal predecessors, (75607), 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) [2021-11-05 20:49:22,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57956 states to 57956 states and 75607 transitions. [2021-11-05 20:49:22,411 INFO L78 Accepts]: Start accepts. Automaton has 57956 states and 75607 transitions. Word has length 79 [2021-11-05 20:49:22,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:49:22,412 INFO L470 AbstractCegarLoop]: Abstraction has 57956 states and 75607 transitions. [2021-11-05 20:49:22,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-05 20:49:22,412 INFO L276 IsEmpty]: Start isEmpty. Operand 57956 states and 75607 transitions. [2021-11-05 20:49:22,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-05 20:49:22,414 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:49:22,414 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, 1] [2021-11-05 20:49:22,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 20:49:22,414 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-05 20:49:22,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:49:22,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1875511950, now seen corresponding path program 1 times [2021-11-05 20:49:22,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:49:22,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394596339] [2021-11-05 20:49:22,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:49:22,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:49:22,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:49:22,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:49:22,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:49:22,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394596339] [2021-11-05 20:49:22,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394596339] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:49:22,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:49:22,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 20:49:22,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018907187] [2021-11-05 20:49:22,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:49:22,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 20:49:22,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:49:22,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 20:49:22,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-05 20:49:22,670 INFO L87 Difference]: Start difference. First operand 57956 states and 75607 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:49:24,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:49:24,889 INFO L93 Difference]: Finished difference Result 119866 states and 156123 transitions. [2021-11-05 20:49:24,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 20:49:24,890 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-05 20:49:24,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:49:25,030 INFO L225 Difference]: With dead ends: 119866 [2021-11-05 20:49:25,030 INFO L226 Difference]: Without dead ends: 62066 [2021-11-05 20:49:25,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.97ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-05 20:49:25,119 INFO L933 BasicCegarLoop]: 11249 mSDtfsCounter, 44250 mSDsluCounter, 16939 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 634.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 44250 SdHoareTripleChecker+Valid, 28188 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 44.82ms SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 757.24ms IncrementalHoareTripleChecker+Time [2021-11-05 20:49:25,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44250 Valid, 28188 Invalid, 375 Unknown, 0 Unchecked, 44.82ms Time], IncrementalHoareTripleChecker [96 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 757.24ms Time] [2021-11-05 20:49:25,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62066 states. [2021-11-05 20:49:26,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62066 to 61830. [2021-11-05 20:49:26,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61830 states, 61761 states have (on average 1.301160926798465) internal successors, (80361), 61829 states have internal predecessors, (80361), 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) [2021-11-05 20:49:26,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61830 states to 61830 states and 80361 transitions. [2021-11-05 20:49:26,581 INFO L78 Accepts]: Start accepts. Automaton has 61830 states and 80361 transitions. Word has length 83 [2021-11-05 20:49:26,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:49:26,582 INFO L470 AbstractCegarLoop]: Abstraction has 61830 states and 80361 transitions. [2021-11-05 20:49:26,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:49:26,582 INFO L276 IsEmpty]: Start isEmpty. Operand 61830 states and 80361 transitions. [2021-11-05 20:49:26,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-05 20:49:26,584 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:49:26,584 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:49:26,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 20:49:26,584 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-05 20:49:26,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:49:26,585 INFO L85 PathProgramCache]: Analyzing trace with hash 313540578, now seen corresponding path program 1 times [2021-11-05 20:49:26,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:49:26,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005089059] [2021-11-05 20:49:26,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:49:26,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:49:26,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:49:26,907 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:49:26,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:49:26,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005089059] [2021-11-05 20:49:26,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005089059] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:49:26,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:49:26,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:49:26,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27783498] [2021-11-05 20:49:26,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:49:26,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:49:26,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:49:26,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:49:26,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:49:26,909 INFO L87 Difference]: Start difference. First operand 61830 states and 80361 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:49:29,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:49:29,297 INFO L93 Difference]: Finished difference Result 165385 states and 215057 transitions. [2021-11-05 20:49:29,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:49:29,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-11-05 20:49:29,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:49:29,685 INFO L225 Difference]: With dead ends: 165385 [2021-11-05 20:49:29,686 INFO L226 Difference]: Without dead ends: 103711 [2021-11-05 20:49:29,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.02ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:49:29,834 INFO L933 BasicCegarLoop]: 13373 mSDtfsCounter, 11090 mSDsluCounter, 11271 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 282.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11090 SdHoareTripleChecker+Valid, 24644 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.66ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 328.64ms IncrementalHoareTripleChecker+Time [2021-11-05 20:49:29,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11090 Valid, 24644 Invalid, 21 Unknown, 0 Unchecked, 28.66ms Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 328.64ms Time] [2021-11-05 20:49:29,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103711 states. [2021-11-05 20:49:31,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103711 to 103415. [2021-11-05 20:49:32,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103415 states, 103346 states have (on average 1.3021500590250228) internal successors, (134572), 103414 states have internal predecessors, (134572), 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) [2021-11-05 20:49:32,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103415 states to 103415 states and 134572 transitions. [2021-11-05 20:49:32,470 INFO L78 Accepts]: Start accepts. Automaton has 103415 states and 134572 transitions. Word has length 94 [2021-11-05 20:49:32,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:49:32,470 INFO L470 AbstractCegarLoop]: Abstraction has 103415 states and 134572 transitions. [2021-11-05 20:49:32,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:49:32,471 INFO L276 IsEmpty]: Start isEmpty. Operand 103415 states and 134572 transitions. [2021-11-05 20:49:32,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-05 20:49:32,477 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:49:32,477 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:49:32,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 20:49:32,478 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-05 20:49:32,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:49:32,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1750441019, now seen corresponding path program 1 times [2021-11-05 20:49:32,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:49:32,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731092649] [2021-11-05 20:49:32,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:49:32,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:49:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:49:32,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:49:32,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:49:32,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731092649] [2021-11-05 20:49:32,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731092649] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:49:32,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:49:32,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:49:32,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805450399] [2021-11-05 20:49:32,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:49:32,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:49:32,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:49:32,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:49:32,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:49:32,679 INFO L87 Difference]: Start difference. First operand 103415 states and 134572 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2021-11-05 20:49:36,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:49:36,558 INFO L93 Difference]: Finished difference Result 262756 states and 342978 transitions. [2021-11-05 20:49:36,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:49:36,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-11-05 20:49:36,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:49:36,905 INFO L225 Difference]: With dead ends: 262756 [2021-11-05 20:49:36,905 INFO L226 Difference]: Without dead ends: 159497 [2021-11-05 20:49:37,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.23ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:49:37,056 INFO L933 BasicCegarLoop]: 11275 mSDtfsCounter, 8765 mSDsluCounter, 11171 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 610.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8765 SdHoareTripleChecker+Valid, 22446 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.89ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 849.91ms IncrementalHoareTripleChecker+Time [2021-11-05 20:49:37,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8765 Valid, 22446 Invalid, 132 Unknown, 0 Unchecked, 18.89ms Time], IncrementalHoareTripleChecker [11 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 849.91ms Time] [2021-11-05 20:49:37,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159497 states. [2021-11-05 20:49:40,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159497 to 155403. [2021-11-05 20:49:40,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155403 states, 155334 states have (on average 1.3083999639486525) internal successors, (203239), 155402 states have internal predecessors, (203239), 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) [2021-11-05 20:49:41,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155403 states to 155403 states and 203239 transitions. [2021-11-05 20:49:41,025 INFO L78 Accepts]: Start accepts. Automaton has 155403 states and 203239 transitions. Word has length 98 [2021-11-05 20:49:41,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:49:41,025 INFO L470 AbstractCegarLoop]: Abstraction has 155403 states and 203239 transitions. [2021-11-05 20:49:41,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2021-11-05 20:49:41,026 INFO L276 IsEmpty]: Start isEmpty. Operand 155403 states and 203239 transitions. [2021-11-05 20:49:41,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-05 20:49:41,027 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:49:41,027 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:49:41,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 20:49:41,027 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-05 20:49:41,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:49:41,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1019799535, now seen corresponding path program 1 times [2021-11-05 20:49:41,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:49:41,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776214839] [2021-11-05 20:49:41,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:49:41,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:49:41,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:49:41,176 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:49:41,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:49:41,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776214839] [2021-11-05 20:49:41,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776214839] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:49:41,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:49:41,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:49:41,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441675271] [2021-11-05 20:49:41,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:49:41,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:49:41,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:49:41,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:49:41,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:49:41,178 INFO L87 Difference]: Start difference. First operand 155403 states and 203239 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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)