./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 5b36d44f 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-5b36d44 [2021-11-07 17:29:16,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 17:29:16,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 17:29:16,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 17:29:16,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 17:29:16,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 17:29:16,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 17:29:16,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 17:29:16,716 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 17:29:16,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 17:29:16,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 17:29:16,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 17:29:16,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 17:29:16,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 17:29:16,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 17:29:16,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 17:29:16,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 17:29:16,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 17:29:16,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 17:29:16,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 17:29:16,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 17:29:16,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 17:29:16,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 17:29:16,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 17:29:16,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 17:29:16,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 17:29:16,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 17:29:16,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 17:29:16,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 17:29:16,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 17:29:16,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 17:29:16,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 17:29:16,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 17:29:16,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 17:29:16,737 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 17:29:16,738 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 17:29:16,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 17:29:16,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 17:29:16,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 17:29:16,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 17:29:16,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 17:29:16,741 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 17:29:16,757 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 17:29:16,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 17:29:16,758 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 17:29:16,758 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 17:29:16,759 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 17:29:16,759 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 17:29:16,759 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 17:29:16,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 17:29:16,760 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 17:29:16,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 17:29:16,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 17:29:16,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 17:29:16,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 17:29:16,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 17:29:16,761 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 17:29:16,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 17:29:16,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 17:29:16,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 17:29:16,761 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 17:29:16,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:29:16,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 17:29:16,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 17:29:16,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 17:29:16,762 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 17:29:16,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 17:29:16,762 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 17:29:16,763 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 17:29:16,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 17:29:16,763 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 17:29:16,763 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08c4ab5181b7abd6700c38bd6f4a3ecc0debf94ce89805012c81d15880051c78 [2021-11-07 17:29:16,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 17:29:16,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 17:29:16,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 17:29:16,954 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 17:29:16,955 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 17:29:16,956 INFO L432 ainManager$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 [2021-11-07 17:29:17,026 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eab5b73d7/47f77888070740228396e464b1512846/FLAG008cd8a07 [2021-11-07 17:29:17,792 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 17:29:17,793 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 [2021-11-07 17:29:17,869 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eab5b73d7/47f77888070740228396e464b1512846/FLAG008cd8a07 [2021-11-07 17:29:18,247 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eab5b73d7/47f77888070740228396e464b1512846 [2021-11-07 17:29:18,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 17:29:18,251 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 17:29:18,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 17:29:18,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 17:29:18,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 17:29:18,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:29:18" (1/1) ... [2021-11-07 17:29:18,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1422056b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:29:18, skipping insertion in model container [2021-11-07 17:29:18,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:29:18" (1/1) ... [2021-11-07 17:29:18,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 17:29:18,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 17:29:22,270 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] [2021-11-07 17:29:22,275 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] [2021-11-07 17:29:22,275 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] [2021-11-07 17:29:22,276 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] [2021-11-07 17:29:22,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:29:22,401 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 17:29:22,789 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] [2021-11-07 17:29:22,790 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] [2021-11-07 17:29:22,790 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] [2021-11-07 17:29:22,791 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] [2021-11-07 17:29:22,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:29:23,094 INFO L208 MainTranslator]: Completed translation [2021-11-07 17:29:23,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:29:23 WrapperNode [2021-11-07 17:29:23,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 17:29:23,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 17:29:23,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 17:29:23,096 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 17:29:23,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:29:23" (1/1) ... [2021-11-07 17:29:23,274 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:29:23" (1/1) ... [2021-11-07 17:29:24,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 17:29:24,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 17:29:24,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 17:29:24,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 17:29:24,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:29:23" (1/1) ... [2021-11-07 17:29:24,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:29:23" (1/1) ... [2021-11-07 17:29:25,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:29:23" (1/1) ... [2021-11-07 17:29:25,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:29:23" (1/1) ... [2021-11-07 17:29:26,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:29:23" (1/1) ... [2021-11-07 17:29:26,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:29:23" (1/1) ... [2021-11-07 17:29:26,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:29:23" (1/1) ... [2021-11-07 17:29:26,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 17:29:26,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 17:29:26,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 17:29:26,554 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 17:29:26,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:29:23" (1/1) ... [2021-11-07 17:29:26,560 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:29:26,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 17:29:26,592 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) [2021-11-07 17:29:26,611 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 [2021-11-07 17:29:26,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 17:29:26,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 17:29:26,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 17:29:26,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 17:29:26,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 17:29:26,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 17:29:26,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 17:29:26,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 17:29:26,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 17:29:26,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 17:29:26,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 17:29:26,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 17:29:26,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 17:29:26,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 17:29:26,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 17:30:33,255 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-07 17:30:33,256 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-07 17:30:33,256 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 17:30:33,256 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-07 17:30:33,258 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 17:30:33,259 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 17:30:33,305 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 17:30:33,305 INFO L299 CfgBuilder]: Removed 9514 assume(true) statements. [2021-11-07 17:30:33,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:30:33 BoogieIcfgContainer [2021-11-07 17:30:33,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 17:30:33,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 17:30:33,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 17:30:33,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 17:30:33,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:29:18" (1/3) ... [2021-11-07 17:30:33,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568c9d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:30:33, skipping insertion in model container [2021-11-07 17:30:33,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:29:23" (2/3) ... [2021-11-07 17:30:33,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568c9d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:30:33, skipping insertion in model container [2021-11-07 17:30:33,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:30:33" (3/3) ... [2021-11-07 17:30:33,326 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2021-11-07 17:30:33,332 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 17:30:33,333 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 69 error locations. [2021-11-07 17:30:33,416 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 17:30:33,442 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 [2021-11-07 17:30:33,442 INFO L340 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2021-11-07 17:30:33,551 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) [2021-11-07 17:30:33,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-07 17:30:33,570 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:30:33,571 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] [2021-11-07 17:30:33,571 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)] === [2021-11-07 17:30:33,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:30:33,576 INFO L85 PathProgramCache]: Analyzing trace with hash -105954818, now seen corresponding path program 1 times [2021-11-07 17:30:33,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:30:33,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451574823] [2021-11-07 17:30:33,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:30:33,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:30:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:30:34,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:30:34,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:30:34,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451574823] [2021-11-07 17:30:34,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451574823] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:30:34,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:30:34,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:30:34,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867723701] [2021-11-07 17:30:34,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:30:34,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:30:34,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:30:34,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:30:34,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:30:34,378 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) [2021-11-07 17:30:35,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:30:35,672 INFO L93 Difference]: Finished difference Result 26036 states and 34446 transitions. [2021-11-07 17:30:35,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:30:35,675 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 [2021-11-07 17:30:35,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:30:35,761 INFO L225 Difference]: With dead ends: 26036 [2021-11-07 17:30:35,762 INFO L226 Difference]: Without dead ends: 16776 [2021-11-07 17:30:35,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.93ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:30:35,789 INFO L933 BasicCegarLoop]: 11762 mSDtfsCounter, 11291 mSDsluCounter, 11212 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 528.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11291 SdHoareTripleChecker+Valid, 22974 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 51.95ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 604.01ms IncrementalHoareTripleChecker+Time [2021-11-07 17:30:35,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11291 Valid, 22974 Invalid, 74 Unknown, 0 Unchecked, 51.95ms Time], IncrementalHoareTripleChecker [18 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 604.01ms Time] [2021-11-07 17:30:35,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16776 states. [2021-11-07 17:30:36,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16776 to 16378. [2021-11-07 17:30:36,248 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) [2021-11-07 17:30:36,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16378 states to 16378 states and 21291 transitions. [2021-11-07 17:30:36,303 INFO L78 Accepts]: Start accepts. Automaton has 16378 states and 21291 transitions. Word has length 73 [2021-11-07 17:30:36,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:30:36,305 INFO L470 AbstractCegarLoop]: Abstraction has 16378 states and 21291 transitions. [2021-11-07 17:30:36,306 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) [2021-11-07 17:30:36,307 INFO L276 IsEmpty]: Start isEmpty. Operand 16378 states and 21291 transitions. [2021-11-07 17:30:36,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-07 17:30:36,312 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:30:36,313 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] [2021-11-07 17:30:36,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 17:30:36,313 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)] === [2021-11-07 17:30:36,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:30:36,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1581454207, now seen corresponding path program 1 times [2021-11-07 17:30:36,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:30:36,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3702430] [2021-11-07 17:30:36,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:30:36,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:30:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:30:36,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:30:36,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:30:36,637 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3702430] [2021-11-07 17:30:36,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3702430] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:30:36,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:30:36,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:30:36,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791935512] [2021-11-07 17:30:36,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:30:36,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:30:36,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:30:36,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:30:36,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:30:36,641 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) [2021-11-07 17:30:37,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:30:37,712 INFO L93 Difference]: Finished difference Result 48592 states and 63290 transitions. [2021-11-07 17:30:37,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:30:37,713 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 [2021-11-07 17:30:37,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:30:37,831 INFO L225 Difference]: With dead ends: 48592 [2021-11-07 17:30:37,832 INFO L226 Difference]: Without dead ends: 32370 [2021-11-07 17:30:37,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.98ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:30:37,873 INFO L933 BasicCegarLoop]: 11279 mSDtfsCounter, 10929 mSDsluCounter, 11241 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 277.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10929 SdHoareTripleChecker+Valid, 22520 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.32ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 327.37ms IncrementalHoareTripleChecker+Time [2021-11-07 17:30:37,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10929 Valid, 22520 Invalid, 34 Unknown, 0 Unchecked, 29.32ms Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 327.37ms Time] [2021-11-07 17:30:37,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32370 states. [2021-11-07 17:30:38,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32370 to 32304. [2021-11-07 17:30:38,763 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) [2021-11-07 17:30:38,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32304 states to 32304 states and 42127 transitions. [2021-11-07 17:30:38,845 INFO L78 Accepts]: Start accepts. Automaton has 32304 states and 42127 transitions. Word has length 75 [2021-11-07 17:30:38,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:30:38,848 INFO L470 AbstractCegarLoop]: Abstraction has 32304 states and 42127 transitions. [2021-11-07 17:30:38,853 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) [2021-11-07 17:30:38,854 INFO L276 IsEmpty]: Start isEmpty. Operand 32304 states and 42127 transitions. [2021-11-07 17:30:38,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 17:30:38,855 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:30:38,856 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] [2021-11-07 17:30:38,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 17:30:38,857 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)] === [2021-11-07 17:30:38,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:30:38,857 INFO L85 PathProgramCache]: Analyzing trace with hash 428041036, now seen corresponding path program 1 times [2021-11-07 17:30:38,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:30:38,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353573325] [2021-11-07 17:30:38,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:30:38,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:30:38,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:30:39,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:30:39,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:30:39,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353573325] [2021-11-07 17:30:39,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353573325] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:30:39,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:30:39,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:30:39,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41689147] [2021-11-07 17:30:39,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:30:39,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:30:39,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:30:39,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:30:39,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:30:39,097 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) [2021-11-07 17:30:41,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:30:41,248 INFO L93 Difference]: Finished difference Result 91100 states and 118731 transitions. [2021-11-07 17:30:41,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:30:41,248 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 [2021-11-07 17:30:41,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:30:41,425 INFO L225 Difference]: With dead ends: 91100 [2021-11-07 17:30:41,425 INFO L226 Difference]: Without dead ends: 58952 [2021-11-07 17:30:41,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.72ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:30:41,512 INFO L933 BasicCegarLoop]: 11547 mSDtfsCounter, 9282 mSDsluCounter, 11213 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 673.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9282 SdHoareTripleChecker+Valid, 22760 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.45ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 751.15ms IncrementalHoareTripleChecker+Time [2021-11-07 17:30:41,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9282 Valid, 22760 Invalid, 65 Unknown, 0 Unchecked, 30.45ms Time], IncrementalHoareTripleChecker [25 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 751.15ms Time] [2021-11-07 17:30:41,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58952 states. [2021-11-07 17:30:42,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58952 to 57956. [2021-11-07 17:30:43,017 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) [2021-11-07 17:30:43,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57956 states to 57956 states and 75607 transitions. [2021-11-07 17:30:43,162 INFO L78 Accepts]: Start accepts. Automaton has 57956 states and 75607 transitions. Word has length 79 [2021-11-07 17:30:43,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:30:43,164 INFO L470 AbstractCegarLoop]: Abstraction has 57956 states and 75607 transitions. [2021-11-07 17:30:43,164 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) [2021-11-07 17:30:43,164 INFO L276 IsEmpty]: Start isEmpty. Operand 57956 states and 75607 transitions. [2021-11-07 17:30:43,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-07 17:30:43,167 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:30:43,167 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] [2021-11-07 17:30:43,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 17:30:43,168 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)] === [2021-11-07 17:30:43,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:30:43,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1875511950, now seen corresponding path program 1 times [2021-11-07 17:30:43,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:30:43,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504604592] [2021-11-07 17:30:43,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:30:43,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:30:43,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:30:43,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:30:43,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:30:43,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504604592] [2021-11-07 17:30:43,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504604592] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:30:43,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:30:43,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 17:30:43,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91639049] [2021-11-07 17:30:43,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:30:43,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 17:30:43,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:30:43,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 17:30:43,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 17:30:43,689 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) [2021-11-07 17:30:46,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:30:46,424 INFO L93 Difference]: Finished difference Result 119866 states and 156123 transitions. [2021-11-07 17:30:46,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 17:30:46,425 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 [2021-11-07 17:30:46,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:30:46,617 INFO L225 Difference]: With dead ends: 119866 [2021-11-07 17:30:46,617 INFO L226 Difference]: Without dead ends: 62066 [2021-11-07 17:30:46,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.69ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 17:30:46,739 INFO L933 BasicCegarLoop]: 11249 mSDtfsCounter, 44250 mSDsluCounter, 16939 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 987.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 44250 SdHoareTripleChecker+Valid, 28188 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 62.32ms SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1124.42ms IncrementalHoareTripleChecker+Time [2021-11-07 17:30:46,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44250 Valid, 28188 Invalid, 375 Unknown, 0 Unchecked, 62.32ms Time], IncrementalHoareTripleChecker [96 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 1124.42ms Time] [2021-11-07 17:30:46,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62066 states. [2021-11-07 17:30:48,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62066 to 61830. [2021-11-07 17:30:48,445 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) [2021-11-07 17:30:48,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61830 states to 61830 states and 80361 transitions. [2021-11-07 17:30:48,601 INFO L78 Accepts]: Start accepts. Automaton has 61830 states and 80361 transitions. Word has length 83 [2021-11-07 17:30:48,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:30:48,602 INFO L470 AbstractCegarLoop]: Abstraction has 61830 states and 80361 transitions. [2021-11-07 17:30:48,602 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) [2021-11-07 17:30:48,602 INFO L276 IsEmpty]: Start isEmpty. Operand 61830 states and 80361 transitions. [2021-11-07 17:30:48,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-07 17:30:48,611 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:30:48,612 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] [2021-11-07 17:30:48,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 17:30:48,612 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)] === [2021-11-07 17:30:48,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:30:48,612 INFO L85 PathProgramCache]: Analyzing trace with hash 313540578, now seen corresponding path program 1 times [2021-11-07 17:30:48,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:30:48,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909869245] [2021-11-07 17:30:48,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:30:48,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:30:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:30:48,835 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:30:48,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:30:48,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909869245] [2021-11-07 17:30:48,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909869245] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:30:48,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:30:48,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:30:48,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344037679] [2021-11-07 17:30:48,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:30:48,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:30:48,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:30:48,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:30:48,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:30:48,837 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) [2021-11-07 17:30:51,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:30:51,658 INFO L93 Difference]: Finished difference Result 165385 states and 215057 transitions. [2021-11-07 17:30:51,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:30:51,659 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 [2021-11-07 17:30:51,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:30:51,958 INFO L225 Difference]: With dead ends: 165385 [2021-11-07 17:30:51,958 INFO L226 Difference]: Without dead ends: 103711 [2021-11-07 17:30:52,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.45ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:30:52,114 INFO L933 BasicCegarLoop]: 13373 mSDtfsCounter, 11090 mSDsluCounter, 11271 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 583.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11090 SdHoareTripleChecker+Valid, 24644 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.37ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 668.89ms IncrementalHoareTripleChecker+Time [2021-11-07 17:30:52,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11090 Valid, 24644 Invalid, 21 Unknown, 0 Unchecked, 22.37ms Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 668.89ms Time] [2021-11-07 17:30:52,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103711 states. [2021-11-07 17:30:54,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103711 to 103415. [2021-11-07 17:30:54,481 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) [2021-11-07 17:30:54,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103415 states to 103415 states and 134572 transitions. [2021-11-07 17:30:54,730 INFO L78 Accepts]: Start accepts. Automaton has 103415 states and 134572 transitions. Word has length 94 [2021-11-07 17:30:54,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:30:54,730 INFO L470 AbstractCegarLoop]: Abstraction has 103415 states and 134572 transitions. [2021-11-07 17:30:54,730 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) [2021-11-07 17:30:54,730 INFO L276 IsEmpty]: Start isEmpty. Operand 103415 states and 134572 transitions. [2021-11-07 17:30:54,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-07 17:30:54,732 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:30:54,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:30:54,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 17:30:54,733 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)] === [2021-11-07 17:30:54,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:30:54,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1750441019, now seen corresponding path program 1 times [2021-11-07 17:30:54,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:30:54,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206660990] [2021-11-07 17:30:54,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:30:54,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:30:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:30:55,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:30:55,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:30:55,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206660990] [2021-11-07 17:30:55,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206660990] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:30:55,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:30:55,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:30:55,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280189122] [2021-11-07 17:30:55,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:30:55,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:30:55,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:30:55,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:30:55,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:30:55,187 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) [2021-11-07 17:30:58,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:30:58,755 INFO L93 Difference]: Finished difference Result 262756 states and 342978 transitions. [2021-11-07 17:30:58,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:30:58,756 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 [2021-11-07 17:30:58,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:30:59,104 INFO L225 Difference]: With dead ends: 262756 [2021-11-07 17:30:59,104 INFO L226 Difference]: Without dead ends: 159497 [2021-11-07 17:30:59,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.87ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:30:59,265 INFO L933 BasicCegarLoop]: 11275 mSDtfsCounter, 8765 mSDsluCounter, 11171 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 503.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8765 SdHoareTripleChecker+Valid, 22446 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.16ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 563.43ms IncrementalHoareTripleChecker+Time [2021-11-07 17:30:59,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8765 Valid, 22446 Invalid, 132 Unknown, 0 Unchecked, 18.16ms Time], IncrementalHoareTripleChecker [11 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 563.43ms Time] [2021-11-07 17:30:59,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159497 states. [2021-11-07 17:31:02,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159497 to 155403. [2021-11-07 17:31:02,899 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) [2021-11-07 17:31:03,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155403 states to 155403 states and 203239 transitions. [2021-11-07 17:31:03,219 INFO L78 Accepts]: Start accepts. Automaton has 155403 states and 203239 transitions. Word has length 98 [2021-11-07 17:31:03,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:31:03,219 INFO L470 AbstractCegarLoop]: Abstraction has 155403 states and 203239 transitions. [2021-11-07 17:31:03,219 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) [2021-11-07 17:31:03,219 INFO L276 IsEmpty]: Start isEmpty. Operand 155403 states and 203239 transitions. [2021-11-07 17:31:03,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-07 17:31:03,220 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:31:03,221 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] [2021-11-07 17:31:03,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 17:31:03,221 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)] === [2021-11-07 17:31:03,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:31:03,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1019799535, now seen corresponding path program 1 times [2021-11-07 17:31:03,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:31:03,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653222160] [2021-11-07 17:31:03,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:31:03,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:31:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:31:03,415 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:31:03,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:31:03,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653222160] [2021-11-07 17:31:03,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653222160] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:31:03,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:31:03,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:31:03,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748741778] [2021-11-07 17:31:03,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:31:03,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:31:03,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:31:03,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:31:03,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:31:03,418 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) [2021-11-07 17:31:09,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:31:09,686 INFO L93 Difference]: Finished difference Result 464165 states and 607388 transitions. [2021-11-07 17:31:09,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:31:09,687 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 104 [2021-11-07 17:31:09,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted.