./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 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_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.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 3bc6b3a88723e5b624538f8d0e562bbcbb838c2bd2dcd71ae870bf42dcd3068b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 19:47:59,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 19:47:59,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 19:47:59,922 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 19:47:59,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 19:47:59,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 19:47:59,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 19:47:59,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 19:47:59,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 19:47:59,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 19:47:59,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 19:47:59,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 19:47:59,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 19:47:59,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 19:47:59,941 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 19:47:59,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 19:47:59,945 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 19:47:59,946 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 19:47:59,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 19:47:59,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 19:47:59,953 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 19:47:59,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 19:47:59,955 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 19:47:59,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 19:47:59,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 19:47:59,958 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 19:47:59,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 19:47:59,958 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 19:47:59,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 19:47:59,960 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 19:47:59,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 19:47:59,961 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 19:47:59,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 19:47:59,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 19:47:59,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 19:47:59,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 19:47:59,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 19:47:59,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 19:47:59,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 19:47:59,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 19:47:59,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 19:47:59,966 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 19:47:59,985 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 19:47:59,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 19:47:59,985 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 19:47:59,985 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 19:47:59,986 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 19:47:59,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 19:47:59,986 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 19:47:59,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 19:47:59,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 19:47:59,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 19:47:59,987 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 19:47:59,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 19:47:59,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 19:47:59,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 19:47:59,988 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 19:47:59,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 19:47:59,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 19:47:59,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 19:47:59,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 19:47:59,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 19:47:59,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 19:47:59,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 19:47:59,989 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 19:47:59,989 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 19:47:59,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 19:47:59,989 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 19:47:59,989 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 19:47:59,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 19:47:59,989 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 19:47:59,990 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bc6b3a88723e5b624538f8d0e562bbcbb838c2bd2dcd71ae870bf42dcd3068b [2021-11-06 19:48:00,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 19:48:00,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 19:48:00,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 19:48:00,229 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 19:48:00,231 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 19:48:00,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-06 19:48:00,295 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b93519de/2950fc661eac45c6b09224078dbdb6b4/FLAGdf4e683bc [2021-11-06 19:48:00,966 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 19:48:00,967 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-06 19:48:01,001 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b93519de/2950fc661eac45c6b09224078dbdb6b4/FLAGdf4e683bc [2021-11-06 19:48:01,317 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b93519de/2950fc661eac45c6b09224078dbdb6b4 [2021-11-06 19:48:01,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 19:48:01,320 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 19:48:01,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 19:48:01,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 19:48:01,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 19:48:01,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:48:01" (1/1) ... [2021-11-06 19:48:01,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50435d29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:01, skipping insertion in model container [2021-11-06 19:48:01,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:48:01" (1/1) ... [2021-11-06 19:48:01,339 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 19:48:01,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 19:48:03,110 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_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339479,339492] [2021-11-06 19:48:03,114 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_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339648,339661] [2021-11-06 19:48:03,114 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_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339815,339828] [2021-11-06 19:48:03,115 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_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339983,339996] [2021-11-06 19:48:03,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 19:48:03,164 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 19:48:03,413 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_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339479,339492] [2021-11-06 19:48:03,414 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_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339648,339661] [2021-11-06 19:48:03,415 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_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339815,339828] [2021-11-06 19:48:03,415 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_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339983,339996] [2021-11-06 19:48:03,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 19:48:03,541 INFO L208 MainTranslator]: Completed translation [2021-11-06 19:48:03,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:03 WrapperNode [2021-11-06 19:48:03,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 19:48:03,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 19:48:03,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 19:48:03,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 19:48:03,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:03" (1/1) ... [2021-11-06 19:48:03,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:03" (1/1) ... [2021-11-06 19:48:12,172 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 19:48:12,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 19:48:12,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 19:48:12,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 19:48:12,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:03" (1/1) ... [2021-11-06 19:48:12,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:03" (1/1) ... [2021-11-06 19:48:12,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:03" (1/1) ... [2021-11-06 19:48:12,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:03" (1/1) ... [2021-11-06 19:48:14,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:03" (1/1) ... [2021-11-06 19:48:14,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:03" (1/1) ... [2021-11-06 19:48:14,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:03" (1/1) ... [2021-11-06 19:48:15,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 19:48:15,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 19:48:15,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 19:48:15,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 19:48:15,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:03" (1/1) ... [2021-11-06 19:48:15,172 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 19:48:15,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 19:48:15,196 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) [2021-11-06 19:48:15,197 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 [2021-11-06 19:48:15,219 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-06 19:48:15,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 19:48:15,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 19:48:15,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 19:48:15,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 19:48:15,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 19:48:15,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 19:48:15,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 19:48:15,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 19:48:15,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 19:48:15,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 19:48:15,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 19:48:15,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 19:48:15,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 19:48:15,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 19:48:15,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 19:48:51,459 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_14_returnLabel: main_#res := 0; [2021-11-06 19:48:51,463 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 19:48:51,464 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L9983: #t~ret1275 := main_#res; [2021-11-06 19:48:51,470 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_2_switch_break: call ULTIMATE.dealloc(ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset);havoc ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset; [2021-11-06 19:48:51,554 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 19:48:51,554 INFO L299 CfgBuilder]: Removed 44956 assume(true) statements. [2021-11-06 19:48:51,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:48:51 BoogieIcfgContainer [2021-11-06 19:48:51,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 19:48:51,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 19:48:51,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 19:48:51,580 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 19:48:51,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:48:01" (1/3) ... [2021-11-06 19:48:51,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea7aa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:48:51, skipping insertion in model container [2021-11-06 19:48:51,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:03" (2/3) ... [2021-11-06 19:48:51,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea7aa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:48:51, skipping insertion in model container [2021-11-06 19:48:51,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:48:51" (3/3) ... [2021-11-06 19:48:51,582 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-06 19:48:51,586 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 19:48:51,586 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 69 error locations. [2021-11-06 19:48:51,691 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 19:48:51,696 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 [2021-11-06 19:48:51,696 INFO L340 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2021-11-06 19:48:52,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 28815 states, 28746 states have (on average 1.2065330828637029) internal successors, (34683), 28814 states have internal predecessors, (34683), 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) [2021-11-06 19:48:52,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-06 19:48:52,006 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:48:52,006 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 19:48:52,007 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-06 19:48:52,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:48:52,011 INFO L85 PathProgramCache]: Analyzing trace with hash -29633841, now seen corresponding path program 1 times [2021-11-06 19:48:52,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:48:52,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136329803] [2021-11-06 19:48:52,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:48:52,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:48:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:48:52,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:48:52,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:48:52,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136329803] [2021-11-06 19:48:52,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136329803] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:48:52,347 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:48:52,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:48:52,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106500793] [2021-11-06 19:48:52,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 19:48:52,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:48:52,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 19:48:52,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:48:52,405 INFO L87 Difference]: Start difference. First operand has 28815 states, 28746 states have (on average 1.2065330828637029) internal successors, (34683), 28814 states have internal predecessors, (34683), 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 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-06 19:48:53,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:48:53,324 INFO L93 Difference]: Finished difference Result 57591 states and 69316 transitions. [2021-11-06 19:48:53,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 19:48:53,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2021-11-06 19:48:53,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:48:53,444 INFO L225 Difference]: With dead ends: 57591 [2021-11-06 19:48:53,444 INFO L226 Difference]: Without dead ends: 28652 [2021-11-06 19:48:53,507 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:48:53,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28652 states. [2021-11-06 19:48:54,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28652 to 28652. [2021-11-06 19:48:54,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28652 states, 28583 states have (on average 1.19700521288878) internal successors, (34214), 28651 states have internal predecessors, (34214), 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) [2021-11-06 19:48:54,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28652 states to 28652 states and 34214 transitions. [2021-11-06 19:48:54,390 INFO L78 Accepts]: Start accepts. Automaton has 28652 states and 34214 transitions. Word has length 17 [2021-11-06 19:48:54,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:48:54,390 INFO L470 AbstractCegarLoop]: Abstraction has 28652 states and 34214 transitions. [2021-11-06 19:48:54,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-06 19:48:54,391 INFO L276 IsEmpty]: Start isEmpty. Operand 28652 states and 34214 transitions. [2021-11-06 19:48:54,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-06 19:48:54,392 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:48:54,393 INFO L513 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] [2021-11-06 19:48:54,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 19:48:54,393 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-06 19:48:54,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:48:54,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1419453784, now seen corresponding path program 1 times [2021-11-06 19:48:54,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:48:54,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710850397] [2021-11-06 19:48:54,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:48:54,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:48:54,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:48:54,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:48:54,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:48:54,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710850397] [2021-11-06 19:48:54,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710850397] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:48:54,566 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:48:54,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:48:54,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468365695] [2021-11-06 19:48:54,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 19:48:54,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:48:54,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 19:48:54,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 19:48:54,568 INFO L87 Difference]: Start difference. First operand 28652 states and 34214 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 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) [2021-11-06 19:48:55,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:48:55,239 INFO L93 Difference]: Finished difference Result 28652 states and 34214 transitions. [2021-11-06 19:48:55,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 19:48:55,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 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 25 [2021-11-06 19:48:55,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:48:55,302 INFO L225 Difference]: With dead ends: 28652 [2021-11-06 19:48:55,302 INFO L226 Difference]: Without dead ends: 28648 [2021-11-06 19:48:55,314 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 19:48:55,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28648 states. [2021-11-06 19:48:55,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28648 to 28648. [2021-11-06 19:48:55,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28648 states, 28581 states have (on average 1.196949022077604) internal successors, (34210), 28647 states have internal predecessors, (34210), 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) [2021-11-06 19:48:56,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28648 states to 28648 states and 34210 transitions. [2021-11-06 19:48:56,024 INFO L78 Accepts]: Start accepts. Automaton has 28648 states and 34210 transitions. Word has length 25 [2021-11-06 19:48:56,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:48:56,027 INFO L470 AbstractCegarLoop]: Abstraction has 28648 states and 34210 transitions. [2021-11-06 19:48:56,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 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) [2021-11-06 19:48:56,027 INFO L276 IsEmpty]: Start isEmpty. Operand 28648 states and 34210 transitions. [2021-11-06 19:48:56,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-06 19:48:56,029 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:48:56,029 INFO L513 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] [2021-11-06 19:48:56,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 19:48:56,030 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-06 19:48:56,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:48:56,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1702205349, now seen corresponding path program 1 times [2021-11-06 19:48:56,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:48:56,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288929576] [2021-11-06 19:48:56,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:48:56,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:48:56,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:48:56,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:48:56,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:48:56,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288929576] [2021-11-06 19:48:56,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288929576] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:48:56,177 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:48:56,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:48:56,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482593926] [2021-11-06 19:48:56,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 19:48:56,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:48:56,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 19:48:56,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 19:48:56,179 INFO L87 Difference]: Start difference. First operand 28648 states and 34210 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 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) [2021-11-06 19:48:56,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:48:56,817 INFO L93 Difference]: Finished difference Result 28648 states and 34210 transitions. [2021-11-06 19:48:56,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 19:48:56,817 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 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 27 [2021-11-06 19:48:56,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:48:56,878 INFO L225 Difference]: With dead ends: 28648 [2021-11-06 19:48:56,879 INFO L226 Difference]: Without dead ends: 28644 [2021-11-06 19:48:56,890 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 19:48:56,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28644 states. [2021-11-06 19:48:57,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28644 to 28644. [2021-11-06 19:48:57,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28644 states, 28579 states have (on average 1.1968928234017986) internal successors, (34206), 28643 states have internal predecessors, (34206), 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) [2021-11-06 19:48:57,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28644 states to 28644 states and 34206 transitions. [2021-11-06 19:48:57,669 INFO L78 Accepts]: Start accepts. Automaton has 28644 states and 34206 transitions. Word has length 27 [2021-11-06 19:48:57,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:48:57,669 INFO L470 AbstractCegarLoop]: Abstraction has 28644 states and 34206 transitions. [2021-11-06 19:48:57,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 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) [2021-11-06 19:48:57,670 INFO L276 IsEmpty]: Start isEmpty. Operand 28644 states and 34206 transitions. [2021-11-06 19:48:57,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-06 19:48:57,671 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:48:57,671 INFO L513 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] [2021-11-06 19:48:57,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 19:48:57,672 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-06 19:48:57,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:48:57,672 INFO L85 PathProgramCache]: Analyzing trace with hash 565508062, now seen corresponding path program 1 times [2021-11-06 19:48:57,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:48:57,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677924781] [2021-11-06 19:48:57,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:48:57,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:48:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:48:57,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:48:57,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:48:57,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677924781] [2021-11-06 19:48:57,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677924781] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:48:57,821 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:48:57,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:48:57,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739522362] [2021-11-06 19:48:57,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 19:48:57,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:48:57,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 19:48:57,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 19:48:57,823 INFO L87 Difference]: Start difference. First operand 28644 states and 34206 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-11-06 19:48:58,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:48:58,443 INFO L93 Difference]: Finished difference Result 28644 states and 34206 transitions. [2021-11-06 19:48:58,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 19:48:58,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 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 29 [2021-11-06 19:48:58,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:48:58,508 INFO L225 Difference]: With dead ends: 28644 [2021-11-06 19:48:58,509 INFO L226 Difference]: Without dead ends: 28640 [2021-11-06 19:48:58,520 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 19:48:58,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28640 states. [2021-11-06 19:48:59,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28640 to 28640. [2021-11-06 19:48:59,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28640 states, 28577 states have (on average 1.1968366168597124) internal successors, (34202), 28639 states have internal predecessors, (34202), 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) [2021-11-06 19:48:59,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28640 states to 28640 states and 34202 transitions. [2021-11-06 19:48:59,231 INFO L78 Accepts]: Start accepts. Automaton has 28640 states and 34202 transitions. Word has length 29 [2021-11-06 19:48:59,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:48:59,231 INFO L470 AbstractCegarLoop]: Abstraction has 28640 states and 34202 transitions. [2021-11-06 19:48:59,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-11-06 19:48:59,232 INFO L276 IsEmpty]: Start isEmpty. Operand 28640 states and 34202 transitions. [2021-11-06 19:48:59,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-06 19:48:59,233 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:48:59,233 INFO L513 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] [2021-11-06 19:48:59,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 19:48:59,233 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-06 19:48:59,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:48:59,233 INFO L85 PathProgramCache]: Analyzing trace with hash -2005290015, now seen corresponding path program 1 times [2021-11-06 19:48:59,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:48:59,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237737404] [2021-11-06 19:48:59,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:48:59,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:48:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:48:59,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:48:59,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:48:59,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237737404] [2021-11-06 19:48:59,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237737404] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:48:59,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:48:59,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:48:59,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450373135] [2021-11-06 19:48:59,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 19:48:59,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:48:59,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 19:48:59,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 19:48:59,359 INFO L87 Difference]: Start difference. First operand 28640 states and 34202 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-11-06 19:48:59,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:48:59,986 INFO L93 Difference]: Finished difference Result 28640 states and 34202 transitions. [2021-11-06 19:48:59,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 19:48:59,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2021-11-06 19:48:59,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:49:00,028 INFO L225 Difference]: With dead ends: 28640 [2021-11-06 19:49:00,028 INFO L226 Difference]: Without dead ends: 28636 [2021-11-06 19:49:00,037 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 19:49:00,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28636 states. [2021-11-06 19:49:00,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28636 to 28636. [2021-11-06 19:49:00,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28636 states, 28575 states have (on average 1.1967804024496937) internal successors, (34198), 28635 states have internal predecessors, (34198), 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) [2021-11-06 19:49:00,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28636 states to 28636 states and 34198 transitions. [2021-11-06 19:49:00,754 INFO L78 Accepts]: Start accepts. Automaton has 28636 states and 34198 transitions. Word has length 31 [2021-11-06 19:49:00,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:49:00,755 INFO L470 AbstractCegarLoop]: Abstraction has 28636 states and 34198 transitions. [2021-11-06 19:49:00,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-11-06 19:49:00,755 INFO L276 IsEmpty]: Start isEmpty. Operand 28636 states and 34198 transitions. [2021-11-06 19:49:00,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-06 19:49:00,756 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:49:00,756 INFO L513 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] [2021-11-06 19:49:00,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 19:49:00,756 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-06 19:49:00,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:49:00,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1358920804, now seen corresponding path program 1 times [2021-11-06 19:49:00,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:49:00,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685999634] [2021-11-06 19:49:00,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:49:00,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:49:00,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:49:00,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:49:00,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:49:00,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685999634] [2021-11-06 19:49:00,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685999634] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:49:00,866 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:49:00,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:49:00,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046536799] [2021-11-06 19:49:00,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 19:49:00,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:49:00,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 19:49:00,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 19:49:00,868 INFO L87 Difference]: Start difference. First operand 28636 states and 34198 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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) [2021-11-06 19:49:01,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:49:01,940 INFO L93 Difference]: Finished difference Result 28636 states and 34198 transitions. [2021-11-06 19:49:01,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 19:49:01,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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 33 [2021-11-06 19:49:01,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:49:01,989 INFO L225 Difference]: With dead ends: 28636 [2021-11-06 19:49:01,990 INFO L226 Difference]: Without dead ends: 28632 [2021-11-06 19:49:01,998 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 19:49:02,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28632 states. [2021-11-06 19:49:02,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28632 to 28632. [2021-11-06 19:49:02,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28632 states, 28573 states have (on average 1.1967241801700907) internal successors, (34194), 28631 states have internal predecessors, (34194), 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) [2021-11-06 19:49:02,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28632 states to 28632 states and 34194 transitions. [2021-11-06 19:49:02,640 INFO L78 Accepts]: Start accepts. Automaton has 28632 states and 34194 transitions. Word has length 33 [2021-11-06 19:49:02,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:49:02,641 INFO L470 AbstractCegarLoop]: Abstraction has 28632 states and 34194 transitions. [2021-11-06 19:49:02,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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) [2021-11-06 19:49:02,641 INFO L276 IsEmpty]: Start isEmpty. Operand 28632 states and 34194 transitions. [2021-11-06 19:49:02,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-06 19:49:02,644 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:49:02,644 INFO L513 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] [2021-11-06 19:49:02,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 19:49:02,644 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-06 19:49:02,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:49:02,645 INFO L85 PathProgramCache]: Analyzing trace with hash 255144295, now seen corresponding path program 1 times [2021-11-06 19:49:02,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:49:02,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223822093] [2021-11-06 19:49:02,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:49:02,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:49:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:49:02,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:49:02,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:49:02,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223822093] [2021-11-06 19:49:02,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223822093] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:49:02,847 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:49:02,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:49:02,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756568138] [2021-11-06 19:49:02,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 19:49:02,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:49:02,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 19:49:02,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 19:49:02,848 INFO L87 Difference]: Start difference. First operand 28632 states and 34194 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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) [2021-11-06 19:49:03,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:49:03,451 INFO L93 Difference]: Finished difference Result 28632 states and 34194 transitions. [2021-11-06 19:49:03,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 19:49:03,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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 35 [2021-11-06 19:49:03,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:49:03,500 INFO L225 Difference]: With dead ends: 28632 [2021-11-06 19:49:03,500 INFO L226 Difference]: Without dead ends: 28628 [2021-11-06 19:49:03,514 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 19:49:03,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28628 states. [2021-11-06 19:49:04,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28628 to 28628. [2021-11-06 19:49:04,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28628 states, 28571 states have (on average 1.1966679500192503) internal successors, (34190), 28627 states have internal predecessors, (34190), 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) [2021-11-06 19:49:04,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28628 states to 28628 states and 34190 transitions. [2021-11-06 19:49:04,347 INFO L78 Accepts]: Start accepts. Automaton has 28628 states and 34190 transitions. Word has length 35 [2021-11-06 19:49:04,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:49:04,347 INFO L470 AbstractCegarLoop]: Abstraction has 28628 states and 34190 transitions. [2021-11-06 19:49:04,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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) [2021-11-06 19:49:04,347 INFO L276 IsEmpty]: Start isEmpty. Operand 28628 states and 34190 transitions. [2021-11-06 19:49:04,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-06 19:49:04,348 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:49:04,348 INFO L513 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] [2021-11-06 19:49:04,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 19:49:04,349 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-06 19:49:04,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:49:04,349 INFO L85 PathProgramCache]: Analyzing trace with hash 382841578, now seen corresponding path program 1 times [2021-11-06 19:49:04,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:49:04,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784685437] [2021-11-06 19:49:04,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:49:04,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:49:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:49:04,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:49:04,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:49:04,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784685437] [2021-11-06 19:49:04,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784685437] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:49:04,449 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:49:04,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:49:04,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663236165] [2021-11-06 19:49:04,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 19:49:04,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:49:04,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 19:49:04,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 19:49:04,450 INFO L87 Difference]: Start difference. First operand 28628 states and 34190 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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) [2021-11-06 19:49:05,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:49:05,366 INFO L93 Difference]: Finished difference Result 28628 states and 34190 transitions. [2021-11-06 19:49:05,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 19:49:05,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2021-11-06 19:49:05,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:49:05,412 INFO L225 Difference]: With dead ends: 28628 [2021-11-06 19:49:05,412 INFO L226 Difference]: Without dead ends: 28624 [2021-11-06 19:49:05,426 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 19:49:05,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28624 states. [2021-11-06 19:49:06,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28624 to 28624. [2021-11-06 19:49:06,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28624 states, 28569 states have (on average 1.1966117119955195) internal successors, (34186), 28623 states have internal predecessors, (34186), 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) [2021-11-06 19:49:06,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28624 states to 28624 states and 34186 transitions. [2021-11-06 19:49:06,415 INFO L78 Accepts]: Start accepts. Automaton has 28624 states and 34186 transitions. Word has length 37 [2021-11-06 19:49:06,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:49:06,416 INFO L470 AbstractCegarLoop]: Abstraction has 28624 states and 34186 transitions. [2021-11-06 19:49:06,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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) [2021-11-06 19:49:06,416 INFO L276 IsEmpty]: Start isEmpty. Operand 28624 states and 34186 transitions. [2021-11-06 19:49:06,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-06 19:49:06,416 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:49:06,417 INFO L513 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] [2021-11-06 19:49:06,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 19:49:06,417 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-06 19:49:06,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:49:06,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1454120723, now seen corresponding path program 1 times [2021-11-06 19:49:06,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:49:06,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200246086] [2021-11-06 19:49:06,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:49:06,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:49:06,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:49:06,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:49:06,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:49:06,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200246086] [2021-11-06 19:49:06,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200246086] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:49:06,514 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:49:06,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:49:06,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003701507] [2021-11-06 19:49:06,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 19:49:06,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:49:06,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 19:49:06,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 19:49:06,517 INFO L87 Difference]: Start difference. First operand 28624 states and 34186 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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) [2021-11-06 19:49:07,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:49:07,354 INFO L93 Difference]: Finished difference Result 28624 states and 34186 transitions. [2021-11-06 19:49:07,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 19:49:07,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2021-11-06 19:49:07,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:49:07,411 INFO L225 Difference]: With dead ends: 28624 [2021-11-06 19:49:07,412 INFO L226 Difference]: Without dead ends: 28620 [2021-11-06 19:49:07,429 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 19:49:07,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28620 states. [2021-11-06 19:49:08,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28620 to 28620. [2021-11-06 19:49:08,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28620 states, 28567 states have (on average 1.196555466097245) internal successors, (34182), 28619 states have internal predecessors, (34182), 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) [2021-11-06 19:49:08,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28620 states to 28620 states and 34182 transitions. [2021-11-06 19:49:08,225 INFO L78 Accepts]: Start accepts. Automaton has 28620 states and 34182 transitions. Word has length 39 [2021-11-06 19:49:08,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:49:08,225 INFO L470 AbstractCegarLoop]: Abstraction has 28620 states and 34182 transitions. [2021-11-06 19:49:08,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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) [2021-11-06 19:49:08,225 INFO L276 IsEmpty]: Start isEmpty. Operand 28620 states and 34182 transitions. [2021-11-06 19:49:08,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-06 19:49:08,226 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:49:08,226 INFO L513 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] [2021-11-06 19:49:08,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-06 19:49:08,226 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-06 19:49:08,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:49:08,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1543333008, now seen corresponding path program 1 times [2021-11-06 19:49:08,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:49:08,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828873715] [2021-11-06 19:49:08,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:49:08,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:49:08,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:49:08,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:49:08,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:49:08,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828873715] [2021-11-06 19:49:08,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828873715] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:49:08,324 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:49:08,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:49:08,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003554099] [2021-11-06 19:49:08,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 19:49:08,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:49:08,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 19:49:08,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 19:49:08,325 INFO L87 Difference]: Start difference. First operand 28620 states and 34182 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2021-11-06 19:49:09,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:49:09,178 INFO L93 Difference]: Finished difference Result 28620 states and 34182 transitions. [2021-11-06 19:49:09,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 19:49:09,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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 41 [2021-11-06 19:49:09,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:49:09,225 INFO L225 Difference]: With dead ends: 28620 [2021-11-06 19:49:09,225 INFO L226 Difference]: Without dead ends: 28616 [2021-11-06 19:49:09,240 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 19:49:09,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28616 states. [2021-11-06 19:49:10,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28616 to 28616. [2021-11-06 19:49:10,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28616 states, 28565 states have (on average 1.1964992123227727) internal successors, (34178), 28615 states have internal predecessors, (34178), 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) [2021-11-06 19:49:10,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28616 states to 28616 states and 34178 transitions. [2021-11-06 19:49:10,249 INFO L78 Accepts]: Start accepts. Automaton has 28616 states and 34178 transitions. Word has length 41 [2021-11-06 19:49:10,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:49:10,250 INFO L470 AbstractCegarLoop]: Abstraction has 28616 states and 34178 transitions. [2021-11-06 19:49:10,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2021-11-06 19:49:10,250 INFO L276 IsEmpty]: Start isEmpty. Operand 28616 states and 34178 transitions. [2021-11-06 19:49:10,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-06 19:49:10,250 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:49:10,250 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 19:49:10,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-06 19:49:10,251 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-06 19:49:10,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:49:10,251 INFO L85 PathProgramCache]: Analyzing trace with hash 210955841, now seen corresponding path program 1 times [2021-11-06 19:49:10,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:49:10,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868317371] [2021-11-06 19:49:10,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:49:10,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:49:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:49:10,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:49:10,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:49:10,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868317371] [2021-11-06 19:49:10,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868317371] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:49:10,369 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:49:10,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:49:10,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647625823] [2021-11-06 19:49:10,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 19:49:10,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:49:10,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 19:49:10,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 19:49:10,371 INFO L87 Difference]: Start difference. First operand 28616 states and 34178 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:49:11,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:49:11,836 INFO L93 Difference]: Finished difference Result 29034 states and 34697 transitions. [2021-11-06 19:49:11,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 19:49:11,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-06 19:49:11,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:49:11,884 INFO L225 Difference]: With dead ends: 29034 [2021-11-06 19:49:11,884 INFO L226 Difference]: Without dead ends: 28992 [2021-11-06 19:49:11,899 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 19:49:11,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28992 states.