./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-amd-amd8111e.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-amd-amd8111e.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 8dda3f7c080a6e7302d861accabde0bee64e4cb5e7a0fb77650fdd775ecd7779 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 17:23:18,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 17:23:18,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 17:23:18,941 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 17:23:18,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 17:23:18,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 17:23:18,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 17:23:18,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 17:23:18,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 17:23:18,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 17:23:18,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 17:23:18,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 17:23:18,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 17:23:18,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 17:23:18,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 17:23:18,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 17:23:18,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 17:23:18,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 17:23:18,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 17:23:18,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 17:23:18,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 17:23:18,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 17:23:18,957 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 17:23:18,958 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 17:23:18,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 17:23:18,959 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 17:23:18,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 17:23:18,960 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 17:23:18,961 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 17:23:18,962 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 17:23:18,962 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 17:23:18,962 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 17:23:18,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 17:23:18,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 17:23:18,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 17:23:18,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 17:23:18,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 17:23:18,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 17:23:18,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 17:23:18,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 17:23:18,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 17:23:18,967 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 17:23:18,982 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 17:23:18,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 17:23:18,984 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 17:23:18,984 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 17:23:18,985 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 17:23:18,985 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 17:23:18,985 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 17:23:18,985 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 17:23:18,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 17:23:18,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 17:23:18,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 17:23:18,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 17:23:18,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 17:23:18,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 17:23:18,987 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 17:23:18,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 17:23:18,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 17:23:18,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 17:23:18,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 17:23:18,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:23:18,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 17:23:18,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 17:23:18,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 17:23:18,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 17:23:18,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 17:23:18,988 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 17:23:18,989 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 17:23:18,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 17:23:18,989 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 17:23:18,989 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8dda3f7c080a6e7302d861accabde0bee64e4cb5e7a0fb77650fdd775ecd7779 [2021-11-07 17:23:19,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 17:23:19,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 17:23:19,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 17:23:19,209 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 17:23:19,209 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 17:23:19,210 INFO L432 ainManager$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-amd-amd8111e.cil.i [2021-11-07 17:23:19,255 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/591e6a2b1/351d11093071457caadc3d1defa90896/FLAG947340ceb [2021-11-07 17:23:19,875 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 17:23:19,876 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-amd-amd8111e.cil.i [2021-11-07 17:23:19,912 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/591e6a2b1/351d11093071457caadc3d1defa90896/FLAG947340ceb [2021-11-07 17:23:20,296 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/591e6a2b1/351d11093071457caadc3d1defa90896 [2021-11-07 17:23:20,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 17:23:20,299 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 17:23:20,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 17:23:20,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 17:23:20,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 17:23:20,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:23:20" (1/1) ... [2021-11-07 17:23:20,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69c4bfa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:23:20, skipping insertion in model container [2021-11-07 17:23:20,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:23:20" (1/1) ... [2021-11-07 17:23:20,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 17:23:20,385 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 17:23:22,184 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-amd-amd8111e.cil.i[334651,334664] [2021-11-07 17:23:22,187 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-amd-amd8111e.cil.i[334820,334833] [2021-11-07 17:23:22,187 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-amd-amd8111e.cil.i[334987,335000] [2021-11-07 17:23:22,187 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-amd-amd8111e.cil.i[335155,335168] [2021-11-07 17:23:22,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:23:22,260 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 17:23:22,467 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-amd-amd8111e.cil.i[334651,334664] [2021-11-07 17:23:22,468 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-amd-amd8111e.cil.i[334820,334833] [2021-11-07 17:23:22,468 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-amd-amd8111e.cil.i[334987,335000] [2021-11-07 17:23:22,469 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-amd-amd8111e.cil.i[335155,335168] [2021-11-07 17:23:22,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:23:22,599 INFO L208 MainTranslator]: Completed translation [2021-11-07 17:23:22,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:23:22 WrapperNode [2021-11-07 17:23:22,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 17:23:22,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 17:23:22,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 17:23:22,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 17:23:22,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:23:22" (1/1) ... [2021-11-07 17:23:22,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:23:22" (1/1) ... [2021-11-07 17:23:23,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 17:23:23,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 17:23:23,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 17:23:23,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 17:23:23,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:23:22" (1/1) ... [2021-11-07 17:23:23,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:23:22" (1/1) ... [2021-11-07 17:23:23,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:23:22" (1/1) ... [2021-11-07 17:23:23,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:23:22" (1/1) ... [2021-11-07 17:23:23,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:23:22" (1/1) ... [2021-11-07 17:23:23,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:23:22" (1/1) ... [2021-11-07 17:23:23,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:23:22" (1/1) ... [2021-11-07 17:23:24,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 17:23:24,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 17:23:24,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 17:23:24,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 17:23:24,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:23:22" (1/1) ... [2021-11-07 17:23:24,173 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:23:24,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 17:23:24,225 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 17:23:24,281 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 17:23:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 17:23:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 17:23:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 17:23:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 17:23:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 17:23:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 17:23:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 17:23:24,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 17:23:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 17:23:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 17:23:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 17:23:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 17:23:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 17:23:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 17:23:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 17:23:32,749 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-07 17:23:32,750 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-07 17:23:32,750 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 17:23:32,750 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-07 17:23:32,751 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 17:23:32,752 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 17:23:32,788 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 17:23:32,789 INFO L299 CfgBuilder]: Removed 6998 assume(true) statements. [2021-11-07 17:23:32,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:23:32 BoogieIcfgContainer [2021-11-07 17:23:32,797 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 17:23:32,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 17:23:32,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 17:23:32,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 17:23:32,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:23:20" (1/3) ... [2021-11-07 17:23:32,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@254ad7a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:23:32, skipping insertion in model container [2021-11-07 17:23:32,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:23:22" (2/3) ... [2021-11-07 17:23:32,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@254ad7a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:23:32, skipping insertion in model container [2021-11-07 17:23:32,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:23:32" (3/3) ... [2021-11-07 17:23:32,804 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2021-11-07 17:23:32,807 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 17:23:32,808 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2021-11-07 17:23:32,862 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 17:23:32,868 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 17:23:32,869 INFO L340 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2021-11-07 17:23:33,029 INFO L276 IsEmpty]: Start isEmpty. Operand has 5901 states, 5823 states have (on average 1.3068864846299157) internal successors, (7610), 5900 states have internal predecessors, (7610), 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 17:23:33,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 17:23:33,045 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:23:33,045 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] [2021-11-07 17:23:33,046 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-07 17:23:33,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:23:33,052 INFO L85 PathProgramCache]: Analyzing trace with hash -481796582, now seen corresponding path program 1 times [2021-11-07 17:23:33,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:23:33,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164862707] [2021-11-07 17:23:33,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:23:33,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:23:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:23:33,394 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 17:23:33,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:23:33,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164862707] [2021-11-07 17:23:33,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164862707] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:23:33,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:23:33,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:23:33,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120623670] [2021-11-07 17:23:33,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:23:33,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:23:33,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:23:33,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:23:33,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:23:33,426 INFO L87 Difference]: Start difference. First operand has 5901 states, 5823 states have (on average 1.3068864846299157) internal successors, (7610), 5900 states have internal predecessors, (7610), 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 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 17:23:33,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:23:33,863 INFO L93 Difference]: Finished difference Result 17355 states and 22387 transitions. [2021-11-07 17:23:33,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:23:33,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2021-11-07 17:23:33,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:23:33,912 INFO L225 Difference]: With dead ends: 17355 [2021-11-07 17:23:33,912 INFO L226 Difference]: Without dead ends: 11237 [2021-11-07 17:23:33,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.62ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:23:33,930 INFO L933 BasicCegarLoop]: 7463 mSDtfsCounter, 7208 mSDsluCounter, 7424 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 141.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7208 SdHoareTripleChecker+Valid, 14887 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.71ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 162.97ms IncrementalHoareTripleChecker+Time [2021-11-07 17:23:33,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7208 Valid, 14887 Invalid, 14 Unknown, 0 Unchecked, 25.71ms Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 162.97ms Time] [2021-11-07 17:23:33,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11237 states. [2021-11-07 17:23:34,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11237 to 11129. [2021-11-07 17:23:34,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11129 states, 11051 states have (on average 1.2624196905257443) internal successors, (13951), 11128 states have internal predecessors, (13951), 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 17:23:34,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11129 states to 11129 states and 13951 transitions. [2021-11-07 17:23:34,227 INFO L78 Accepts]: Start accepts. Automaton has 11129 states and 13951 transitions. Word has length 45 [2021-11-07 17:23:34,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:23:34,227 INFO L470 AbstractCegarLoop]: Abstraction has 11129 states and 13951 transitions. [2021-11-07 17:23:34,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 17:23:34,228 INFO L276 IsEmpty]: Start isEmpty. Operand 11129 states and 13951 transitions. [2021-11-07 17:23:34,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-07 17:23:34,233 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:23:34,234 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] [2021-11-07 17:23:34,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 17:23:34,234 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-07 17:23:34,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:23:34,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1445610242, now seen corresponding path program 1 times [2021-11-07 17:23:34,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:23:34,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633301872] [2021-11-07 17:23:34,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:23:34,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:23:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:23:34,393 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 17:23:34,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:23:34,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633301872] [2021-11-07 17:23:34,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633301872] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:23:34,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:23:34,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:23:34,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18450354] [2021-11-07 17:23:34,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:23:34,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:23:34,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:23:34,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:23:34,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:23:34,397 INFO L87 Difference]: Start difference. First operand 11129 states and 13951 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 17:23:35,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:23:35,201 INFO L93 Difference]: Finished difference Result 31153 states and 39121 transitions. [2021-11-07 17:23:35,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:23:35,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2021-11-07 17:23:35,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:23:35,268 INFO L225 Difference]: With dead ends: 31153 [2021-11-07 17:23:35,268 INFO L226 Difference]: Without dead ends: 20108 [2021-11-07 17:23:35,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.52ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:23:35,288 INFO L933 BasicCegarLoop]: 7101 mSDtfsCounter, 6569 mSDsluCounter, 6242 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 272.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6569 SdHoareTripleChecker+Valid, 13343 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.29ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 318.95ms IncrementalHoareTripleChecker+Time [2021-11-07 17:23:35,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6569 Valid, 13343 Invalid, 52 Unknown, 0 Unchecked, 16.29ms Time], IncrementalHoareTripleChecker [16 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 318.95ms Time] [2021-11-07 17:23:35,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20108 states. [2021-11-07 17:23:35,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20108 to 19342. [2021-11-07 17:23:35,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19342 states, 19264 states have (on average 1.2681686046511629) internal successors, (24430), 19341 states have internal predecessors, (24430), 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 17:23:35,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19342 states to 19342 states and 24430 transitions. [2021-11-07 17:23:35,667 INFO L78 Accepts]: Start accepts. Automaton has 19342 states and 24430 transitions. Word has length 48 [2021-11-07 17:23:35,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:23:35,668 INFO L470 AbstractCegarLoop]: Abstraction has 19342 states and 24430 transitions. [2021-11-07 17:23:35,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 17:23:35,672 INFO L276 IsEmpty]: Start isEmpty. Operand 19342 states and 24430 transitions. [2021-11-07 17:23:35,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 17:23:35,674 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:23:35,675 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] [2021-11-07 17:23:35,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 17:23:35,675 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-07 17:23:35,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:23:35,675 INFO L85 PathProgramCache]: Analyzing trace with hash -34310452, now seen corresponding path program 1 times [2021-11-07 17:23:35,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:23:35,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210373198] [2021-11-07 17:23:35,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:23:35,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:23:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:23:35,803 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 17:23:35,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:23:35,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210373198] [2021-11-07 17:23:35,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210373198] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:23:35,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:23:35,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:23:35,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516926882] [2021-11-07 17:23:35,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:23:35,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:23:35,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:23:35,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:23:35,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:23:35,806 INFO L87 Difference]: Start difference. First operand 19342 states and 24430 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 17:23:36,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:23:36,955 INFO L93 Difference]: Finished difference Result 51722 states and 65284 transitions. [2021-11-07 17:23:36,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:23:36,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 53 [2021-11-07 17:23:36,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:23:37,027 INFO L225 Difference]: With dead ends: 51722 [2021-11-07 17:23:37,028 INFO L226 Difference]: Without dead ends: 32464 [2021-11-07 17:23:37,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.27ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:23:37,062 INFO L933 BasicCegarLoop]: 7105 mSDtfsCounter, 5038 mSDsluCounter, 7029 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 513.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5038 SdHoareTripleChecker+Valid, 14134 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.48ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 563.10ms IncrementalHoareTripleChecker+Time [2021-11-07 17:23:37,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5038 Valid, 14134 Invalid, 89 Unknown, 0 Unchecked, 13.48ms Time], IncrementalHoareTripleChecker [9 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 563.10ms Time] [2021-11-07 17:23:37,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32464 states. [2021-11-07 17:23:37,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32464 to 30986. [2021-11-07 17:23:37,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30986 states, 30908 states have (on average 1.2695742202665976) internal successors, (39240), 30985 states have internal predecessors, (39240), 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 17:23:37,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30986 states to 30986 states and 39240 transitions. [2021-11-07 17:23:37,779 INFO L78 Accepts]: Start accepts. Automaton has 30986 states and 39240 transitions. Word has length 53 [2021-11-07 17:23:37,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:23:37,780 INFO L470 AbstractCegarLoop]: Abstraction has 30986 states and 39240 transitions. [2021-11-07 17:23:37,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 17:23:37,782 INFO L276 IsEmpty]: Start isEmpty. Operand 30986 states and 39240 transitions. [2021-11-07 17:23:37,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 17:23:37,783 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:23:37,783 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] [2021-11-07 17:23:37,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 17:23:37,784 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-07 17:23:37,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:23:37,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1062801472, now seen corresponding path program 1 times [2021-11-07 17:23:37,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:23:37,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325060416] [2021-11-07 17:23:37,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:23:37,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:23:37,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:23:37,901 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 17:23:37,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:23:37,901 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325060416] [2021-11-07 17:23:37,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325060416] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:23:37,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:23:37,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:23:37,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816293340] [2021-11-07 17:23:37,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:23:37,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:23:37,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:23:37,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:23:37,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:23:37,903 INFO L87 Difference]: Start difference. First operand 30986 states and 39240 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 17:23:38,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:23:38,632 INFO L93 Difference]: Finished difference Result 50680 states and 64245 transitions. [2021-11-07 17:23:38,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:23:38,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 53 [2021-11-07 17:23:38,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:23:38,679 INFO L225 Difference]: With dead ends: 50680 [2021-11-07 17:23:38,679 INFO L226 Difference]: Without dead ends: 19778 [2021-11-07 17:23:38,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.43ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:23:38,729 INFO L933 BasicCegarLoop]: 9501 mSDtfsCounter, 2579 mSDsluCounter, 7009 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 282.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2579 SdHoareTripleChecker+Valid, 16510 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.85ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 328.84ms IncrementalHoareTripleChecker+Time [2021-11-07 17:23:38,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2579 Valid, 16510 Invalid, 94 Unknown, 0 Unchecked, 12.85ms Time], IncrementalHoareTripleChecker [19 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 328.84ms Time] [2021-11-07 17:23:38,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19778 states. [2021-11-07 17:23:39,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19778 to 19656. [2021-11-07 17:23:39,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19656 states, 19578 states have (on average 1.2729594442741854) internal successors, (24922), 19655 states have internal predecessors, (24922), 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 17:23:39,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19656 states to 19656 states and 24922 transitions. [2021-11-07 17:23:39,114 INFO L78 Accepts]: Start accepts. Automaton has 19656 states and 24922 transitions. Word has length 53 [2021-11-07 17:23:39,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:23:39,114 INFO L470 AbstractCegarLoop]: Abstraction has 19656 states and 24922 transitions. [2021-11-07 17:23:39,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 17:23:39,114 INFO L276 IsEmpty]: Start isEmpty. Operand 19656 states and 24922 transitions. [2021-11-07 17:23:39,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 17:23:39,115 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:23:39,116 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 17:23:39,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 17:23:39,116 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-07 17:23:39,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:23:39,117 INFO L85 PathProgramCache]: Analyzing trace with hash 2000051397, now seen corresponding path program 1 times [2021-11-07 17:23:39,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:23:39,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755537188] [2021-11-07 17:23:39,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:23:39,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:23:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:23:39,197 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:23:39,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:23:39,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755537188] [2021-11-07 17:23:39,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755537188] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:23:39,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:23:39,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:23:39,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706288630] [2021-11-07 17:23:39,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:23:39,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:23:39,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:23:39,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:23:39,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:23:39,200 INFO L87 Difference]: Start difference. First operand 19656 states and 24922 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 17:23:40,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:23:40,004 INFO L93 Difference]: Finished difference Result 58422 states and 74154 transitions. [2021-11-07 17:23:40,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:23:40,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2021-11-07 17:23:40,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:23:40,085 INFO L225 Difference]: With dead ends: 58422 [2021-11-07 17:23:40,085 INFO L226 Difference]: Without dead ends: 38896 [2021-11-07 17:23:40,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.27ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:23:40,119 INFO L933 BasicCegarLoop]: 7164 mSDtfsCounter, 6938 mSDsluCounter, 7050 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 265.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6938 SdHoareTripleChecker+Valid, 14214 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.05ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 299.08ms IncrementalHoareTripleChecker+Time [2021-11-07 17:23:40,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6938 Valid, 14214 Invalid, 10 Unknown, 0 Unchecked, 10.05ms Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 299.08ms Time] [2021-11-07 17:23:40,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38896 states. [2021-11-07 17:23:40,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38896 to 38774. [2021-11-07 17:23:40,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38774 states, 38696 states have (on average 1.2741368616911308) internal successors, (49304), 38773 states have internal predecessors, (49304), 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 17:23:40,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38774 states to 38774 states and 49304 transitions. [2021-11-07 17:23:40,746 INFO L78 Accepts]: Start accepts. Automaton has 38774 states and 49304 transitions. Word has length 70 [2021-11-07 17:23:40,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:23:40,747 INFO L470 AbstractCegarLoop]: Abstraction has 38774 states and 49304 transitions. [2021-11-07 17:23:40,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 17:23:40,747 INFO L276 IsEmpty]: Start isEmpty. Operand 38774 states and 49304 transitions. [2021-11-07 17:23:40,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 17:23:40,748 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:23:40,748 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 17:23:40,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 17:23:40,748 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-07 17:23:40,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:23:40,751 INFO L85 PathProgramCache]: Analyzing trace with hash -2036750461, now seen corresponding path program 1 times [2021-11-07 17:23:40,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:23:40,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662455699] [2021-11-07 17:23:40,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:23:40,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:23:40,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:23:40,878 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 17:23:40,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:23:40,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662455699] [2021-11-07 17:23:40,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662455699] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:23:40,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:23:40,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:23:40,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749055958] [2021-11-07 17:23:40,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:23:40,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:23:40,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:23:40,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:23:40,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:23:40,881 INFO L87 Difference]: Start difference. First operand 38774 states and 49304 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 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 17:23:41,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:23:41,346 INFO L93 Difference]: Finished difference Result 38774 states and 49304 transitions. [2021-11-07 17:23:41,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:23:41,347 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 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 70 [2021-11-07 17:23:41,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:23:41,418 INFO L225 Difference]: With dead ends: 38774 [2021-11-07 17:23:41,418 INFO L226 Difference]: Without dead ends: 38770 [2021-11-07 17:23:41,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.43ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:23:41,437 INFO L933 BasicCegarLoop]: 7107 mSDtfsCounter, 7051 mSDsluCounter, 7043 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7051 SdHoareTripleChecker+Valid, 14150 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.88ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.56ms IncrementalHoareTripleChecker+Time [2021-11-07 17:23:41,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7051 Valid, 14150 Invalid, 70 Unknown, 0 Unchecked, 16.88ms Time], IncrementalHoareTripleChecker [22 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 42.56ms Time] [2021-11-07 17:23:41,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38770 states. [2021-11-07 17:23:42,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38770 to 38770. [2021-11-07 17:23:42,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38770 states, 38694 states have (on average 1.2740993435674781) internal successors, (49300), 38769 states have internal predecessors, (49300), 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 17:23:42,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38770 states to 38770 states and 49300 transitions. [2021-11-07 17:23:42,262 INFO L78 Accepts]: Start accepts. Automaton has 38770 states and 49300 transitions. Word has length 70 [2021-11-07 17:23:42,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:23:42,263 INFO L470 AbstractCegarLoop]: Abstraction has 38770 states and 49300 transitions. [2021-11-07 17:23:42,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 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 17:23:42,263 INFO L276 IsEmpty]: Start isEmpty. Operand 38770 states and 49300 transitions. [2021-11-07 17:23:42,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 17:23:42,264 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:23:42,264 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 17:23:42,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 17:23:42,265 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-07 17:23:42,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:23:42,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1188034950, now seen corresponding path program 1 times [2021-11-07 17:23:42,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:23:42,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196020334] [2021-11-07 17:23:42,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:23:42,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:23:42,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:23:42,397 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 17:23:42,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:23:42,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196020334] [2021-11-07 17:23:42,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196020334] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:23:42,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:23:42,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:23:42,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637426384] [2021-11-07 17:23:42,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:23:42,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:23:42,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:23:42,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:23:42,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:23:42,399 INFO L87 Difference]: Start difference. First operand 38770 states and 49300 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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 17:23:42,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:23:42,875 INFO L93 Difference]: Finished difference Result 38770 states and 49300 transitions. [2021-11-07 17:23:42,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:23:42,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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 72 [2021-11-07 17:23:42,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:23:42,938 INFO L225 Difference]: With dead ends: 38770 [2021-11-07 17:23:42,938 INFO L226 Difference]: Without dead ends: 38766 [2021-11-07 17:23:42,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.38ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:23:42,957 INFO L933 BasicCegarLoop]: 7103 mSDtfsCounter, 7043 mSDsluCounter, 7041 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7043 SdHoareTripleChecker+Valid, 14144 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.27ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.66ms IncrementalHoareTripleChecker+Time [2021-11-07 17:23:42,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7043 Valid, 14144 Invalid, 70 Unknown, 0 Unchecked, 16.27ms Time], IncrementalHoareTripleChecker [24 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 45.66ms Time] [2021-11-07 17:23:42,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38766 states. [2021-11-07 17:23:43,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38766 to 38766. [2021-11-07 17:23:43,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38766 states, 38692 states have (on average 1.2740618215651813) internal successors, (49296), 38765 states have internal predecessors, (49296), 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 17:23:43,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38766 states to 38766 states and 49296 transitions. [2021-11-07 17:23:43,775 INFO L78 Accepts]: Start accepts. Automaton has 38766 states and 49296 transitions. Word has length 72 [2021-11-07 17:23:43,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:23:43,775 INFO L470 AbstractCegarLoop]: Abstraction has 38766 states and 49296 transitions. [2021-11-07 17:23:43,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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 17:23:43,776 INFO L276 IsEmpty]: Start isEmpty. Operand 38766 states and 49296 transitions. [2021-11-07 17:23:43,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-07 17:23:43,777 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:23:43,777 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 17:23:43,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 17:23:43,777 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-07 17:23:43,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:23:43,778 INFO L85 PathProgramCache]: Analyzing trace with hash -759572471, now seen corresponding path program 1 times [2021-11-07 17:23:43,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:23:43,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414463806] [2021-11-07 17:23:43,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:23:43,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:23:43,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:23:43,870 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 17:23:43,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:23:43,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414463806] [2021-11-07 17:23:43,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414463806] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:23:43,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:23:43,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:23:43,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845834414] [2021-11-07 17:23:43,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:23:43,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:23:43,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:23:43,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:23:43,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:23:43,873 INFO L87 Difference]: Start difference. First operand 38766 states and 49296 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 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 17:23:44,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:23:44,618 INFO L93 Difference]: Finished difference Result 38766 states and 49296 transitions. [2021-11-07 17:23:44,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:23:44,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 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 74 [2021-11-07 17:23:44,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:23:44,679 INFO L225 Difference]: With dead ends: 38766 [2021-11-07 17:23:44,679 INFO L226 Difference]: Without dead ends: 38762 [2021-11-07 17:23:44,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.51ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:23:44,697 INFO L933 BasicCegarLoop]: 7099 mSDtfsCounter, 7037 mSDsluCounter, 7039 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7037 SdHoareTripleChecker+Valid, 14138 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.81ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.26ms IncrementalHoareTripleChecker+Time [2021-11-07 17:23:44,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7037 Valid, 14138 Invalid, 68 Unknown, 0 Unchecked, 11.81ms Time], IncrementalHoareTripleChecker [24 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 39.26ms Time] [2021-11-07 17:23:44,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38762 states. [2021-11-07 17:23:45,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38762 to 38762. [2021-11-07 17:23:45,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38762 states, 38690 states have (on average 1.2740242956836392) internal successors, (49292), 38761 states have internal predecessors, (49292), 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 17:23:45,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38762 states to 38762 states and 49292 transitions. [2021-11-07 17:23:45,683 INFO L78 Accepts]: Start accepts. Automaton has 38762 states and 49292 transitions. Word has length 74 [2021-11-07 17:23:45,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:23:45,683 INFO L470 AbstractCegarLoop]: Abstraction has 38762 states and 49292 transitions. [2021-11-07 17:23:45,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 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 17:23:45,683 INFO L276 IsEmpty]: Start isEmpty. Operand 38762 states and 49292 transitions. [2021-11-07 17:23:45,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-07 17:23:45,685 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:23:45,685 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 17:23:45,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 17:23:45,685 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-07 17:23:45,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:23:45,686 INFO L85 PathProgramCache]: Analyzing trace with hash 195437324, now seen corresponding path program 1 times [2021-11-07 17:23:45,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:23:45,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364802683] [2021-11-07 17:23:45,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:23:45,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:23:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:23:45,826 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 17:23:45,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:23:45,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364802683] [2021-11-07 17:23:45,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364802683] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:23:45,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:23:45,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:23:45,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211942138] [2021-11-07 17:23:45,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:23:45,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:23:45,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:23:45,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:23:45,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:23:45,829 INFO L87 Difference]: Start difference. First operand 38762 states and 49292 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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 17:23:46,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:23:46,587 INFO L93 Difference]: Finished difference Result 38762 states and 49292 transitions. [2021-11-07 17:23:46,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:23:46,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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 76 [2021-11-07 17:23:46,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:23:46,651 INFO L225 Difference]: With dead ends: 38762 [2021-11-07 17:23:46,651 INFO L226 Difference]: Without dead ends: 38758 [2021-11-07 17:23:46,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.37ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:23:46,668 INFO L933 BasicCegarLoop]: 7095 mSDtfsCounter, 7031 mSDsluCounter, 7037 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7031 SdHoareTripleChecker+Valid, 14132 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.65ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.33ms IncrementalHoareTripleChecker+Time [2021-11-07 17:23:46,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7031 Valid, 14132 Invalid, 66 Unknown, 0 Unchecked, 12.65ms Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 47.33ms Time] [2021-11-07 17:23:46,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38758 states. [2021-11-07 17:23:47,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38758 to 38758. [2021-11-07 17:23:47,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38758 states, 38688 states have (on average 1.2739867659222497) internal successors, (49288), 38757 states have internal predecessors, (49288), 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 17:23:47,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38758 states to 38758 states and 49288 transitions. [2021-11-07 17:23:47,687 INFO L78 Accepts]: Start accepts. Automaton has 38758 states and 49288 transitions. Word has length 76 [2021-11-07 17:23:47,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:23:47,687 INFO L470 AbstractCegarLoop]: Abstraction has 38758 states and 49288 transitions. [2021-11-07 17:23:47,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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 17:23:47,687 INFO L276 IsEmpty]: Start isEmpty. Operand 38758 states and 49288 transitions. [2021-11-07 17:23:47,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-07 17:23:47,688 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:23:47,688 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:23:47,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 17:23:47,689 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-07 17:23:47,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:23:47,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1163150705, now seen corresponding path program 1 times [2021-11-07 17:23:47,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:23:47,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604191528] [2021-11-07 17:23:47,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:23:47,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:23:47,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:23:47,808 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 17:23:47,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:23:47,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604191528] [2021-11-07 17:23:47,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604191528] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:23:47,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:23:47,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:23:47,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404218887] [2021-11-07 17:23:47,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:23:47,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:23:47,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:23:47,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:23:47,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:23:47,810 INFO L87 Difference]: Start difference. First operand 38758 states and 49288 transitions. Second operand has 4 states, 4 states have (on average 18.25) 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 17:23:48,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:23:48,427 INFO L93 Difference]: Finished difference Result 38758 states and 49288 transitions. [2021-11-07 17:23:48,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:23:48,427 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) 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 78 [2021-11-07 17:23:48,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:23:48,623 INFO L225 Difference]: With dead ends: 38758 [2021-11-07 17:23:48,623 INFO L226 Difference]: Without dead ends: 38754 [2021-11-07 17:23:48,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.47ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:23:48,634 INFO L933 BasicCegarLoop]: 7091 mSDtfsCounter, 7025 mSDsluCounter, 7035 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7025 SdHoareTripleChecker+Valid, 14126 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.66ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.16ms IncrementalHoareTripleChecker+Time [2021-11-07 17:23:48,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7025 Valid, 14126 Invalid, 64 Unknown, 0 Unchecked, 10.66ms Time], IncrementalHoareTripleChecker [24 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 36.16ms Time] [2021-11-07 17:23:48,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38754 states. [2021-11-07 17:23:49,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38754 to 38754. [2021-11-07 17:23:49,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38754 states, 38686 states have (on average 1.2739492322804116) internal successors, (49284), 38753 states have internal predecessors, (49284), 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 17:23:49,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38754 states to 38754 states and 49284 transitions. [2021-11-07 17:23:49,540 INFO L78 Accepts]: Start accepts. Automaton has 38754 states and 49284 transitions. Word has length 78 [2021-11-07 17:23:49,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:23:49,540 INFO L470 AbstractCegarLoop]: Abstraction has 38754 states and 49284 transitions. [2021-11-07 17:23:49,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) 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 17:23:49,540 INFO L276 IsEmpty]: Start isEmpty. Operand 38754 states and 49284 transitions. [2021-11-07 17:23:49,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-07 17:23:49,541 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:23:49,542 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:23:49,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 17:23:49,542 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-07 17:23:49,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:23:49,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1096188270, now seen corresponding path program 1 times [2021-11-07 17:23:49,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:23:49,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726336957] [2021-11-07 17:23:49,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:23:49,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:23:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:23:49,663 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 17:23:49,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:23:49,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726336957] [2021-11-07 17:23:49,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726336957] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:23:49,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:23:49,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:23:49,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283425277] [2021-11-07 17:23:49,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:23:49,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:23:49,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:23:49,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:23:49,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:23:49,666 INFO L87 Difference]: Start difference. First operand 38754 states and 49284 transitions. Second operand has 4 states, 4 states have (on average 18.75) 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 17:23:50,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:23:50,467 INFO L93 Difference]: Finished difference Result 38754 states and 49284 transitions. [2021-11-07 17:23:50,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:23:50,468 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) 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 80 [2021-11-07 17:23:50,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:23:50,523 INFO L225 Difference]: With dead ends: 38754 [2021-11-07 17:23:50,523 INFO L226 Difference]: Without dead ends: 38750 [2021-11-07 17:23:50,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.39ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:23:50,534 INFO L933 BasicCegarLoop]: 7087 mSDtfsCounter, 7019 mSDsluCounter, 7033 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7019 SdHoareTripleChecker+Valid, 14120 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.62ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.69ms IncrementalHoareTripleChecker+Time [2021-11-07 17:23:50,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7019 Valid, 14120 Invalid, 62 Unknown, 0 Unchecked, 10.62ms Time], IncrementalHoareTripleChecker [24 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 35.69ms Time] [2021-11-07 17:23:50,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38750 states. [2021-11-07 17:23:51,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38750 to 38750. [2021-11-07 17:23:51,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38750 states, 38684 states have (on average 1.2739116947575224) internal successors, (49280), 38749 states have internal predecessors, (49280), 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 17:23:51,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38750 states to 38750 states and 49280 transitions. [2021-11-07 17:23:51,867 INFO L78 Accepts]: Start accepts. Automaton has 38750 states and 49280 transitions. Word has length 80 [2021-11-07 17:23:51,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:23:51,867 INFO L470 AbstractCegarLoop]: Abstraction has 38750 states and 49280 transitions. [2021-11-07 17:23:51,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) 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 17:23:51,867 INFO L276 IsEmpty]: Start isEmpty. Operand 38750 states and 49280 transitions. [2021-11-07 17:23:51,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 17:23:51,869 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:23:51,869 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 17:23:51,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 17:23:51,869 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-07 17:23:51,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:23:51,869 INFO L85 PathProgramCache]: Analyzing trace with hash 234420320, now seen corresponding path program 1 times [2021-11-07 17:23:51,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:23:51,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551772452] [2021-11-07 17:23:51,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:23:51,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:23:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:23:51,940 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:23:51,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:23:51,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551772452] [2021-11-07 17:23:51,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551772452] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:23:51,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:23:51,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:23:51,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389553102] [2021-11-07 17:23:51,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:23:51,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:23:51,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:23:51,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:23:51,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:23:51,942 INFO L87 Difference]: Start difference. First operand 38750 states and 49280 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:23:53,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:23:53,630 INFO L93 Difference]: Finished difference Result 85238 states and 108655 transitions. [2021-11-07 17:23:53,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:23:53,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-07 17:23:53,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:23:53,709 INFO L225 Difference]: With dead ends: 85238 [2021-11-07 17:23:53,709 INFO L226 Difference]: Without dead ends: 46618 [2021-11-07 17:23:53,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.24ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:23:53,764 INFO L933 BasicCegarLoop]: 9475 mSDtfsCounter, 2561 mSDsluCounter, 6982 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 569.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2561 SdHoareTripleChecker+Valid, 16457 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.95ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 624.26ms IncrementalHoareTripleChecker+Time [2021-11-07 17:23:53,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2561 Valid, 16457 Invalid, 94 Unknown, 0 Unchecked, 8.95ms Time], IncrementalHoareTripleChecker [19 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 624.26ms Time] [2021-11-07 17:23:53,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46618 states. [2021-11-07 17:23:55,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46618 to 46506. [2021-11-07 17:23:55,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46506 states, 46440 states have (on average 1.277433247200689) internal successors, (59324), 46505 states have internal predecessors, (59324), 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 17:23:55,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46506 states to 46506 states and 59324 transitions. [2021-11-07 17:23:55,232 INFO L78 Accepts]: Start accepts. Automaton has 46506 states and 59324 transitions. Word has length 81 [2021-11-07 17:23:55,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:23:55,232 INFO L470 AbstractCegarLoop]: Abstraction has 46506 states and 59324 transitions. [2021-11-07 17:23:55,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:23:55,233 INFO L276 IsEmpty]: Start isEmpty. Operand 46506 states and 59324 transitions. [2021-11-07 17:23:55,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 17:23:55,233 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:23:55,234 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:23:55,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 17:23:55,234 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-07 17:23:55,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:23:55,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1169797355, now seen corresponding path program 1 times [2021-11-07 17:23:55,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:23:55,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139061081] [2021-11-07 17:23:55,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:23:55,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:23:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:23:55,334 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 17:23:55,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:23:55,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139061081] [2021-11-07 17:23:55,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139061081] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:23:55,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:23:55,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:23:55,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701820828] [2021-11-07 17:23:55,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:23:55,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:23:55,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:23:55,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:23:55,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:23:55,337 INFO L87 Difference]: Start difference. First operand 46506 states and 59324 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 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 17:23:56,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:23:56,621 INFO L93 Difference]: Finished difference Result 46506 states and 59324 transitions. [2021-11-07 17:23:56,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:23:56,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 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 82 [2021-11-07 17:23:56,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:23:56,693 INFO L225 Difference]: With dead ends: 46506 [2021-11-07 17:23:56,693 INFO L226 Difference]: Without dead ends: 46502 [2021-11-07 17:23:56,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.29ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:23:56,713 INFO L933 BasicCegarLoop]: 7031 mSDtfsCounter, 1580 mSDsluCounter, 12302 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 159.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1580 SdHoareTripleChecker+Valid, 19333 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.14ms SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 202.83ms IncrementalHoareTripleChecker+Time [2021-11-07 17:23:56,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1580 Valid, 19333 Invalid, 274 Unknown, 0 Unchecked, 12.14ms Time], IncrementalHoareTripleChecker [52 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 202.83ms Time] [2021-11-07 17:23:56,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46502 states. [2021-11-07 17:23:57,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46502 to 46502. [2021-11-07 17:23:57,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46502 states, 46438 states have (on average 1.2774021275679401) internal successors, (59320), 46501 states have internal predecessors, (59320), 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 17:23:58,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46502 states to 46502 states and 59320 transitions. [2021-11-07 17:23:58,069 INFO L78 Accepts]: Start accepts. Automaton has 46502 states and 59320 transitions. Word has length 82 [2021-11-07 17:23:58,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:23:58,070 INFO L470 AbstractCegarLoop]: Abstraction has 46502 states and 59320 transitions. [2021-11-07 17:23:58,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 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 17:23:58,070 INFO L276 IsEmpty]: Start isEmpty. Operand 46502 states and 59320 transitions. [2021-11-07 17:23:58,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 17:23:58,071 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:23:58,071 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:23:58,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 17:23:58,071 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-07 17:23:58,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:23:58,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1106316312, now seen corresponding path program 1 times [2021-11-07 17:23:58,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:23:58,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074321821] [2021-11-07 17:23:58,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:23:58,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:23:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:23:58,160 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 17:23:58,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:23:58,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074321821] [2021-11-07 17:23:58,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074321821] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:23:58,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:23:58,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:23:58,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928501798] [2021-11-07 17:23:58,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:23:58,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:23:58,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:23:58,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:23:58,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:23:58,162 INFO L87 Difference]: Start difference. First operand 46502 states and 59320 transitions. Second operand has 4 states, 4 states have (on average 19.75) 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 17:23:59,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:23:59,497 INFO L93 Difference]: Finished difference Result 46502 states and 59320 transitions. [2021-11-07 17:23:59,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:23:59,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) 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 84 [2021-11-07 17:23:59,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:23:59,565 INFO L225 Difference]: With dead ends: 46502 [2021-11-07 17:23:59,565 INFO L226 Difference]: Without dead ends: 46498 [2021-11-07 17:23:59,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.67ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:23:59,581 INFO L933 BasicCegarLoop]: 7079 mSDtfsCounter, 7007 mSDsluCounter, 7029 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7007 SdHoareTripleChecker+Valid, 14108 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.30ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.31ms IncrementalHoareTripleChecker+Time [2021-11-07 17:23:59,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7007 Valid, 14108 Invalid, 58 Unknown, 0 Unchecked, 12.30ms Time], IncrementalHoareTripleChecker [24 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 33.31ms Time] [2021-11-07 17:23:59,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46498 states.