./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.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 3dcd453e519a411dcaaa8ea095e5544a2fd8cdb9a31e662fc6de670ff7f7c541 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 17:34:42,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 17:34:42,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 17:34:42,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 17:34:42,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 17:34:42,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 17:34:42,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 17:34:42,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 17:34:42,430 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 17:34:42,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 17:34:42,434 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 17:34:42,435 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 17:34:42,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 17:34:42,437 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 17:34:42,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 17:34:42,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 17:34:42,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 17:34:42,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 17:34:42,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 17:34:42,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 17:34:42,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 17:34:42,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 17:34:42,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 17:34:42,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 17:34:42,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 17:34:42,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 17:34:42,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 17:34:42,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 17:34:42,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 17:34:42,457 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 17:34:42,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 17:34:42,458 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 17:34:42,459 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 17:34:42,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 17:34:42,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 17:34:42,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 17:34:42,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 17:34:42,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 17:34:42,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 17:34:42,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 17:34:42,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 17:34:42,464 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 17:34:42,490 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 17:34:42,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 17:34:42,491 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 17:34:42,491 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 17:34:42,493 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 17:34:42,493 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 17:34:42,493 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 17:34:42,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 17:34:42,493 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 17:34:42,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 17:34:42,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 17:34:42,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 17:34:42,494 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 17:34:42,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 17:34:42,495 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 17:34:42,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 17:34:42,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 17:34:42,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 17:34:42,495 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 17:34:42,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:34:42,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 17:34:42,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 17:34:42,496 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 17:34:42,496 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 17:34:42,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 17:34:42,496 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 17:34:42,496 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 17:34:42,497 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 17:34:42,497 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 17:34:42,497 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3dcd453e519a411dcaaa8ea095e5544a2fd8cdb9a31e662fc6de670ff7f7c541 [2021-11-07 17:34:42,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 17:34:42,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 17:34:42,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 17:34:42,715 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 17:34:42,716 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 17:34:42,717 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i [2021-11-07 17:34:42,762 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03ab634bf/c937a1b5f5a94de0975ead40d8b7dba5/FLAGb31e16b8f [2021-11-07 17:34:43,415 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 17:34:43,415 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i [2021-11-07 17:34:43,455 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03ab634bf/c937a1b5f5a94de0975ead40d8b7dba5/FLAGb31e16b8f [2021-11-07 17:34:43,793 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03ab634bf/c937a1b5f5a94de0975ead40d8b7dba5 [2021-11-07 17:34:43,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 17:34:43,796 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 17:34:43,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 17:34:43,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 17:34:43,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 17:34:43,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:34:43" (1/1) ... [2021-11-07 17:34:43,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65c7a0c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:43, skipping insertion in model container [2021-11-07 17:34:43,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:34:43" (1/1) ... [2021-11-07 17:34:43,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 17:34:43,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 17:34:45,623 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[320934,320947] [2021-11-07 17:34:45,630 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321103,321116] [2021-11-07 17:34:45,631 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321270,321283] [2021-11-07 17:34:45,631 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321438,321451] [2021-11-07 17:34:45,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:34:45,676 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 17:34:45,972 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[320934,320947] [2021-11-07 17:34:45,974 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321103,321116] [2021-11-07 17:34:45,974 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321270,321283] [2021-11-07 17:34:45,990 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321438,321451] [2021-11-07 17:34:45,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:34:46,090 INFO L208 MainTranslator]: Completed translation [2021-11-07 17:34:46,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:46 WrapperNode [2021-11-07 17:34:46,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 17:34:46,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 17:34:46,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 17:34:46,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 17:34:46,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:46" (1/1) ... [2021-11-07 17:34:46,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:46" (1/1) ... [2021-11-07 17:34:46,503 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 17:34:46,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 17:34:46,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 17:34:46,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 17:34:46,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:46" (1/1) ... [2021-11-07 17:34:46,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:46" (1/1) ... [2021-11-07 17:34:46,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:46" (1/1) ... [2021-11-07 17:34:46,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:46" (1/1) ... [2021-11-07 17:34:46,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:46" (1/1) ... [2021-11-07 17:34:46,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:46" (1/1) ... [2021-11-07 17:34:46,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:46" (1/1) ... [2021-11-07 17:34:46,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 17:34:46,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 17:34:46,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 17:34:46,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 17:34:46,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:46" (1/1) ... [2021-11-07 17:34:47,007 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:34:47,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 17:34:47,025 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 17:34:47,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 17:34:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 17:34:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 17:34:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 17:34:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 17:34:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 17:34:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 17:34:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 17:34:47,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 17:34:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 17:34:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 17:34:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 17:34:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 17:34:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 17:34:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 17:34:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 17:34:52,308 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-07 17:34:52,310 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-07 17:34:52,310 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-07 17:34:52,310 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-07 17:34:52,310 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-07 17:34:52,310 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#5: ldv_switch_2_#res := 0; [2021-11-07 17:34:52,310 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#6: ldv_switch_2_#res := 0; [2021-11-07 17:34:52,311 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#7: ldv_switch_2_#res := 0; [2021-11-07 17:34:52,311 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#8: ldv_switch_2_#res := 0; [2021-11-07 17:34:52,311 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 17:34:52,311 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-07 17:34:52,312 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 17:34:52,312 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 17:34:52,332 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 17:34:52,333 INFO L299 CfgBuilder]: Removed 3189 assume(true) statements. [2021-11-07 17:34:52,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:34:52 BoogieIcfgContainer [2021-11-07 17:34:52,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 17:34:52,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 17:34:52,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 17:34:52,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 17:34:52,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:34:43" (1/3) ... [2021-11-07 17:34:52,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@114d8bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:34:52, skipping insertion in model container [2021-11-07 17:34:52,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:46" (2/3) ... [2021-11-07 17:34:52,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@114d8bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:34:52, skipping insertion in model container [2021-11-07 17:34:52,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:34:52" (3/3) ... [2021-11-07 17:34:52,344 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i [2021-11-07 17:34:52,347 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 17:34:52,347 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 137 error locations. [2021-11-07 17:34:52,390 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 17:34:52,394 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 17:34:52,395 INFO L340 AbstractCegarLoop]: Starting to check reachability of 137 error locations. [2021-11-07 17:34:52,522 INFO L276 IsEmpty]: Start isEmpty. Operand has 2946 states, 2809 states have (on average 1.3595585617657528) internal successors, (3819), 2945 states have internal predecessors, (3819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:34:52,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 17:34:52,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:34:52,529 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:34:52,529 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-07 17:34:52,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:34:52,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1954461346, now seen corresponding path program 1 times [2021-11-07 17:34:52,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:34:52,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756869468] [2021-11-07 17:34:52,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:34:52,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:34:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:34:52,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:34:52,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:34:52,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756869468] [2021-11-07 17:34:52,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756869468] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:34:52,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:34:52,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:34:52,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206603131] [2021-11-07 17:34:52,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:34:52,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:34:52,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:34:52,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:34:52,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:34:52,961 INFO L87 Difference]: Start difference. First operand has 2946 states, 2809 states have (on average 1.3595585617657528) internal successors, (3819), 2945 states have internal predecessors, (3819), 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 11.0) 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) [2021-11-07 17:34:53,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:34:53,738 INFO L93 Difference]: Finished difference Result 8502 states and 11035 transitions. [2021-11-07 17:34:53,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:34:53,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) 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 [2021-11-07 17:34:53,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:34:53,771 INFO L225 Difference]: With dead ends: 8502 [2021-11-07 17:34:53,771 INFO L226 Difference]: Without dead ends: 5262 [2021-11-07 17:34:53,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.11ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:34:53,787 INFO L933 BasicCegarLoop]: 3670 mSDtfsCounter, 3392 mSDsluCounter, 3618 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 537.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3392 SdHoareTripleChecker+Valid, 7288 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.44ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 599.13ms IncrementalHoareTripleChecker+Time [2021-11-07 17:34:53,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3392 Valid, 7288 Invalid, 34 Unknown, 0 Unchecked, 20.44ms Time], IncrementalHoareTripleChecker [6 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 599.13ms Time] [2021-11-07 17:34:53,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5262 states. [2021-11-07 17:34:53,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5262 to 5066. [2021-11-07 17:34:53,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5066 states, 4929 states have (on average 1.2663826333941977) internal successors, (6242), 5065 states have internal predecessors, (6242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:34:53,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5066 states to 5066 states and 6242 transitions. [2021-11-07 17:34:53,945 INFO L78 Accepts]: Start accepts. Automaton has 5066 states and 6242 transitions. Word has length 33 [2021-11-07 17:34:53,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:34:53,945 INFO L470 AbstractCegarLoop]: Abstraction has 5066 states and 6242 transitions. [2021-11-07 17:34:53,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) 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) [2021-11-07 17:34:53,946 INFO L276 IsEmpty]: Start isEmpty. Operand 5066 states and 6242 transitions. [2021-11-07 17:34:53,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 17:34:53,952 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:34:53,952 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:34:53,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 17:34:53,953 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-07 17:34:53,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:34:53,955 INFO L85 PathProgramCache]: Analyzing trace with hash -176422703, now seen corresponding path program 1 times [2021-11-07 17:34:53,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:34:53,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313531714] [2021-11-07 17:34:53,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:34:53,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:34:54,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:34:54,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:34:54,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:34:54,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313531714] [2021-11-07 17:34:54,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313531714] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:34:54,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:34:54,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:34:54,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042253061] [2021-11-07 17:34:54,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:34:54,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:34:54,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:34:54,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:34:54,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:34:54,091 INFO L87 Difference]: Start difference. First operand 5066 states and 6242 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:34:54,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:34:54,883 INFO L93 Difference]: Finished difference Result 10118 states and 12531 transitions. [2021-11-07 17:34:54,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:34:54,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-07 17:34:54,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:34:54,897 INFO L225 Difference]: With dead ends: 10118 [2021-11-07 17:34:54,897 INFO L226 Difference]: Without dead ends: 5096 [2021-11-07 17:34:54,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.59ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:34:54,905 INFO L933 BasicCegarLoop]: 3281 mSDtfsCounter, 1665 mSDsluCounter, 3140 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 636.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1665 SdHoareTripleChecker+Valid, 6421 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.29ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 697.08ms IncrementalHoareTripleChecker+Time [2021-11-07 17:34:54,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1665 Valid, 6421 Invalid, 100 Unknown, 0 Unchecked, 7.29ms Time], IncrementalHoareTripleChecker [20 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 697.08ms Time] [2021-11-07 17:34:54,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5096 states. [2021-11-07 17:34:54,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5096 to 4966. [2021-11-07 17:34:54,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4966 states, 4829 states have (on average 1.285773452060468) internal successors, (6209), 4965 states have internal predecessors, (6209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:34:54,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4966 states to 4966 states and 6209 transitions. [2021-11-07 17:34:54,990 INFO L78 Accepts]: Start accepts. Automaton has 4966 states and 6209 transitions. Word has length 36 [2021-11-07 17:34:54,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:34:54,990 INFO L470 AbstractCegarLoop]: Abstraction has 4966 states and 6209 transitions. [2021-11-07 17:34:54,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:34:54,991 INFO L276 IsEmpty]: Start isEmpty. Operand 4966 states and 6209 transitions. [2021-11-07 17:34:54,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-07 17:34:54,992 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:34:54,992 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:34:54,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 17:34:54,992 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-07 17:34:54,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:34:54,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1802019258, now seen corresponding path program 1 times [2021-11-07 17:34:54,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:34:54,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596438642] [2021-11-07 17:34:54,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:34:54,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:34:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:34:55,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:34:55,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:34:55,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596438642] [2021-11-07 17:34:55,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596438642] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:34:55,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:34:55,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:34:55,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981147781] [2021-11-07 17:34:55,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:34:55,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:34:55,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:34:55,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:34:55,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:34:55,110 INFO L87 Difference]: Start difference. First operand 4966 states and 6209 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:34:55,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:34:55,753 INFO L93 Difference]: Finished difference Result 12249 states and 15224 transitions. [2021-11-07 17:34:55,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:34:55,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-07 17:34:55,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:34:55,774 INFO L225 Difference]: With dead ends: 12249 [2021-11-07 17:34:55,774 INFO L226 Difference]: Without dead ends: 7327 [2021-11-07 17:34:55,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.40ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:34:55,783 INFO L933 BasicCegarLoop]: 3294 mSDtfsCounter, 2603 mSDsluCounter, 3262 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 468.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2603 SdHoareTripleChecker+Valid, 6556 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.89ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 527.71ms IncrementalHoareTripleChecker+Time [2021-11-07 17:34:55,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2603 Valid, 6556 Invalid, 55 Unknown, 0 Unchecked, 6.89ms Time], IncrementalHoareTripleChecker [9 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 527.71ms Time] [2021-11-07 17:34:55,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7327 states. [2021-11-07 17:34:55,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7327 to 6977. [2021-11-07 17:34:55,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6977 states, 6840 states have (on average 1.2845029239766081) internal successors, (8786), 6976 states have internal predecessors, (8786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:34:55,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6977 states to 6977 states and 8786 transitions. [2021-11-07 17:34:55,922 INFO L78 Accepts]: Start accepts. Automaton has 6977 states and 8786 transitions. Word has length 40 [2021-11-07 17:34:55,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:34:55,922 INFO L470 AbstractCegarLoop]: Abstraction has 6977 states and 8786 transitions. [2021-11-07 17:34:55,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:34:55,922 INFO L276 IsEmpty]: Start isEmpty. Operand 6977 states and 8786 transitions. [2021-11-07 17:34:55,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 17:34:55,923 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:34:55,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:34:55,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 17:34:55,924 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-07 17:34:55,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:34:55,924 INFO L85 PathProgramCache]: Analyzing trace with hash -541025864, now seen corresponding path program 1 times [2021-11-07 17:34:55,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:34:55,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233019185] [2021-11-07 17:34:55,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:34:55,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:34:55,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:34:55,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:34:55,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:34:55,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233019185] [2021-11-07 17:34:55,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233019185] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:34:55,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:34:55,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:34:55,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81793396] [2021-11-07 17:34:55,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:34:55,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:34:55,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:34:55,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:34:55,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:34:55,991 INFO L87 Difference]: Start difference. First operand 6977 states and 8786 transitions. Second operand has 3 states, 3 states have (on average 14.0) 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) [2021-11-07 17:34:56,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:34:56,601 INFO L93 Difference]: Finished difference Result 19376 states and 24300 transitions. [2021-11-07 17:34:56,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:34:56,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) 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 [2021-11-07 17:34:56,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:34:56,637 INFO L225 Difference]: With dead ends: 19376 [2021-11-07 17:34:56,637 INFO L226 Difference]: Without dead ends: 12443 [2021-11-07 17:34:56,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.45ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:34:56,649 INFO L933 BasicCegarLoop]: 3294 mSDtfsCounter, 3055 mSDsluCounter, 3159 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 279.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3055 SdHoareTripleChecker+Valid, 6453 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.47ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 329.27ms IncrementalHoareTripleChecker+Time [2021-11-07 17:34:56,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3055 Valid, 6453 Invalid, 39 Unknown, 0 Unchecked, 6.47ms Time], IncrementalHoareTripleChecker [12 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 329.27ms Time] [2021-11-07 17:34:56,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12443 states. [2021-11-07 17:34:56,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12443 to 11985. [2021-11-07 17:34:56,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11985 states, 11848 states have (on average 1.2800472653612425) internal successors, (15166), 11984 states have internal predecessors, (15166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:34:56,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11985 states to 11985 states and 15166 transitions. [2021-11-07 17:34:56,918 INFO L78 Accepts]: Start accepts. Automaton has 11985 states and 15166 transitions. Word has length 42 [2021-11-07 17:34:56,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:34:56,919 INFO L470 AbstractCegarLoop]: Abstraction has 11985 states and 15166 transitions. [2021-11-07 17:34:56,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) 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) [2021-11-07 17:34:56,919 INFO L276 IsEmpty]: Start isEmpty. Operand 11985 states and 15166 transitions. [2021-11-07 17:34:56,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 17:34:56,936 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:34:56,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:34:56,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 17:34:56,937 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr123ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-07 17:34:56,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:34:56,937 INFO L85 PathProgramCache]: Analyzing trace with hash -229544855, now seen corresponding path program 1 times [2021-11-07 17:34:56,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:34:56,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415253033] [2021-11-07 17:34:56,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:34:56,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:34:56,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:34:57,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:34:57,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:34:57,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415253033] [2021-11-07 17:34:57,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415253033] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:34:57,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:34:57,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:34:57,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118826940] [2021-11-07 17:34:57,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:34:57,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:34:57,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:34:57,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:34:57,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:34:57,025 INFO L87 Difference]: Start difference. First operand 11985 states and 15166 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:34:58,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:34:58,135 INFO L93 Difference]: Finished difference Result 33107 states and 41844 transitions. [2021-11-07 17:34:58,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:34:58,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-07 17:34:58,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:34:58,187 INFO L225 Difference]: With dead ends: 33107 [2021-11-07 17:34:58,192 INFO L226 Difference]: Without dead ends: 21166 [2021-11-07 17:34:58,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.50ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:34:58,216 INFO L933 BasicCegarLoop]: 3289 mSDtfsCounter, 2888 mSDsluCounter, 3250 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 720.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2888 SdHoareTripleChecker+Valid, 6539 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.51ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 794.78ms IncrementalHoareTripleChecker+Time [2021-11-07 17:34:58,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2888 Valid, 6539 Invalid, 79 Unknown, 0 Unchecked, 8.51ms Time], IncrementalHoareTripleChecker [16 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 794.78ms Time] [2021-11-07 17:34:58,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21166 states. [2021-11-07 17:34:58,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21166 to 20768. [2021-11-07 17:34:58,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20768 states, 20631 states have (on average 1.2750230236052542) internal successors, (26305), 20767 states have internal predecessors, (26305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:34:58,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20768 states to 20768 states and 26305 transitions. [2021-11-07 17:34:58,714 INFO L78 Accepts]: Start accepts. Automaton has 20768 states and 26305 transitions. Word has length 44 [2021-11-07 17:34:58,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:34:58,715 INFO L470 AbstractCegarLoop]: Abstraction has 20768 states and 26305 transitions. [2021-11-07 17:34:58,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:34:58,716 INFO L276 IsEmpty]: Start isEmpty. Operand 20768 states and 26305 transitions. [2021-11-07 17:34:58,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 17:34:58,716 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:34:58,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:34:58,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 17:34:58,717 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr131ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-07 17:34:58,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:34:58,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1545664541, now seen corresponding path program 1 times [2021-11-07 17:34:58,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:34:58,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179739281] [2021-11-07 17:34:58,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:34:58,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:34:58,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:34:58,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:34:58,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:34:58,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179739281] [2021-11-07 17:34:58,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179739281] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:34:58,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:34:58,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:34:58,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081090370] [2021-11-07 17:34:58,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:34:58,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:34:58,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:34:58,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:34:58,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:34:58,822 INFO L87 Difference]: Start difference. First operand 20768 states and 26305 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:34:59,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:34:59,862 INFO L93 Difference]: Finished difference Result 59416 states and 75265 transitions. [2021-11-07 17:34:59,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:34:59,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-07 17:34:59,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:34:59,930 INFO L225 Difference]: With dead ends: 59416 [2021-11-07 17:34:59,930 INFO L226 Difference]: Without dead ends: 38692 [2021-11-07 17:34:59,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.41ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:34:59,961 INFO L933 BasicCegarLoop]: 3632 mSDtfsCounter, 3021 mSDsluCounter, 3251 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 404.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3021 SdHoareTripleChecker+Valid, 6883 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.94ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 469.28ms IncrementalHoareTripleChecker+Time [2021-11-07 17:34:59,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3021 Valid, 6883 Invalid, 79 Unknown, 0 Unchecked, 6.94ms Time], IncrementalHoareTripleChecker [16 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 469.28ms Time] [2021-11-07 17:34:59,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38692 states. [2021-11-07 17:35:00,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38692 to 38274. [2021-11-07 17:35:00,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38274 states, 38137 states have (on average 1.2708131211159766) internal successors, (48465), 38273 states have internal predecessors, (48465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:00,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38274 states to 38274 states and 48465 transitions. [2021-11-07 17:35:00,763 INFO L78 Accepts]: Start accepts. Automaton has 38274 states and 48465 transitions. Word has length 45 [2021-11-07 17:35:00,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:35:00,765 INFO L470 AbstractCegarLoop]: Abstraction has 38274 states and 48465 transitions. [2021-11-07 17:35:00,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:00,766 INFO L276 IsEmpty]: Start isEmpty. Operand 38274 states and 48465 transitions. [2021-11-07 17:35:00,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-07 17:35:00,767 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:35:00,767 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:35:00,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 17:35:00,768 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-07 17:35:00,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:35:00,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1862821480, now seen corresponding path program 1 times [2021-11-07 17:35:00,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:35:00,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187620750] [2021-11-07 17:35:00,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:35:00,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:35:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:35:00,851 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:35:00,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:35:00,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187620750] [2021-11-07 17:35:00,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187620750] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:35:00,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:35:00,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:35:00,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378178346] [2021-11-07 17:35:00,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:35:00,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:35:00,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:35:00,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:35:00,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:35:00,854 INFO L87 Difference]: Start difference. First operand 38274 states and 48465 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:01,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:35:01,732 INFO L93 Difference]: Finished difference Result 76496 states and 96898 transitions. [2021-11-07 17:35:01,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:35:01,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-07 17:35:01,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:35:01,819 INFO L225 Difference]: With dead ends: 76496 [2021-11-07 17:35:01,820 INFO L226 Difference]: Without dead ends: 38338 [2021-11-07 17:35:01,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.51ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:35:01,889 INFO L933 BasicCegarLoop]: 3302 mSDtfsCounter, 1 mSDsluCounter, 3300 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6602 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.16ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.23ms IncrementalHoareTripleChecker+Time [2021-11-07 17:35:01,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 6602 Invalid, 5 Unknown, 0 Unchecked, 6.16ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 7.23ms Time] [2021-11-07 17:35:01,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38338 states. [2021-11-07 17:35:02,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38338 to 38306. [2021-11-07 17:35:02,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38306 states, 38169 states have (on average 1.2705860777070397) internal successors, (48497), 38305 states have internal predecessors, (48497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:02,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38306 states to 38306 states and 48497 transitions. [2021-11-07 17:35:02,757 INFO L78 Accepts]: Start accepts. Automaton has 38306 states and 48497 transitions. Word has length 65 [2021-11-07 17:35:02,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:35:02,758 INFO L470 AbstractCegarLoop]: Abstraction has 38306 states and 48497 transitions. [2021-11-07 17:35:02,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:02,758 INFO L276 IsEmpty]: Start isEmpty. Operand 38306 states and 48497 transitions. [2021-11-07 17:35:02,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-07 17:35:02,759 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:35:02,759 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:35:02,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 17:35:02,759 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-07 17:35:02,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:35:02,760 INFO L85 PathProgramCache]: Analyzing trace with hash 723518932, now seen corresponding path program 1 times [2021-11-07 17:35:02,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:35:02,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944530286] [2021-11-07 17:35:02,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:35:02,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:35:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:35:02,977 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:35:02,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:35:02,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944530286] [2021-11-07 17:35:02,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944530286] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 17:35:02,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375774421] [2021-11-07 17:35:02,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:35:02,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 17:35:02,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 17:35:02,996 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 17:35:03,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 17:35:03,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:35:03,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 1576 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 17:35:03,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 17:35:03,692 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 17:35:03,692 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 17:35:03,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375774421] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:35:03,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 17:35:03,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-07 17:35:03,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766017699] [2021-11-07 17:35:03,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:35:03,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:35:03,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:35:03,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:35:03,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:35:03,695 INFO L87 Difference]: Start difference. First operand 38306 states and 48497 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:05,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:35:05,214 INFO L93 Difference]: Finished difference Result 113460 states and 143884 transitions. [2021-11-07 17:35:05,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:35:05,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-11-07 17:35:05,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:35:05,377 INFO L225 Difference]: With dead ends: 113460 [2021-11-07 17:35:05,378 INFO L226 Difference]: Without dead ends: 75270 [2021-11-07 17:35:05,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 7.15ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:35:05,460 INFO L933 BasicCegarLoop]: 3847 mSDtfsCounter, 3119 mSDsluCounter, 3197 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 333.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3119 SdHoareTripleChecker+Valid, 7044 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.12ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 394.03ms IncrementalHoareTripleChecker+Time [2021-11-07 17:35:05,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3119 Valid, 7044 Invalid, 34 Unknown, 0 Unchecked, 7.12ms Time], IncrementalHoareTripleChecker [8 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 394.03ms Time] [2021-11-07 17:35:05,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75270 states. [2021-11-07 17:35:06,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75270 to 75074. [2021-11-07 17:35:06,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75074 states, 74937 states have (on average 1.2715881340325874) internal successors, (95289), 75073 states have internal predecessors, (95289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:07,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75074 states to 75074 states and 95289 transitions. [2021-11-07 17:35:07,187 INFO L78 Accepts]: Start accepts. Automaton has 75074 states and 95289 transitions. Word has length 67 [2021-11-07 17:35:07,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:35:07,187 INFO L470 AbstractCegarLoop]: Abstraction has 75074 states and 95289 transitions. [2021-11-07 17:35:07,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:07,188 INFO L276 IsEmpty]: Start isEmpty. Operand 75074 states and 95289 transitions. [2021-11-07 17:35:07,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-07 17:35:07,188 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:35:07,188 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:35:07,211 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-07 17:35:07,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 17:35:07,410 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-07 17:35:07,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:35:07,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1616038185, now seen corresponding path program 1 times [2021-11-07 17:35:07,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:35:07,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463298059] [2021-11-07 17:35:07,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:35:07,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:35:07,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:35:07,487 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:35:07,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:35:07,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463298059] [2021-11-07 17:35:07,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463298059] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 17:35:07,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444964584] [2021-11-07 17:35:07,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:35:07,490 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 17:35:07,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 17:35:07,491 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 17:35:07,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 17:35:08,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:35:08,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 1516 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 17:35:08,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 17:35:08,144 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 17:35:08,144 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 17:35:08,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444964584] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:35:08,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 17:35:08,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-07 17:35:08,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537243488] [2021-11-07 17:35:08,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:35:08,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:35:08,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:35:08,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:35:08,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:35:08,146 INFO L87 Difference]: Start difference. First operand 75074 states and 95289 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:09,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:35:09,519 INFO L93 Difference]: Finished difference Result 128012 states and 162142 transitions. [2021-11-07 17:35:09,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:35:09,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 68 [2021-11-07 17:35:09,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:35:09,629 INFO L225 Difference]: With dead ends: 128012 [2021-11-07 17:35:09,629 INFO L226 Difference]: Without dead ends: 53054 [2021-11-07 17:35:09,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 7.05ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:35:09,715 INFO L933 BasicCegarLoop]: 3370 mSDtfsCounter, 3204 mSDsluCounter, 2556 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3204 SdHoareTripleChecker+Valid, 5926 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.41ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.31ms IncrementalHoareTripleChecker+Time [2021-11-07 17:35:09,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3204 Valid, 5926 Invalid, 30 Unknown, 0 Unchecked, 5.41ms Time], IncrementalHoareTripleChecker [7 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 36.31ms Time] [2021-11-07 17:35:09,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53054 states. [2021-11-07 17:35:10,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53054 to 52886. [2021-11-07 17:35:10,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52886 states, 52749 states have (on average 1.2666969989952417) internal successors, (66817), 52885 states have internal predecessors, (66817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:10,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52886 states to 52886 states and 66817 transitions. [2021-11-07 17:35:10,979 INFO L78 Accepts]: Start accepts. Automaton has 52886 states and 66817 transitions. Word has length 68 [2021-11-07 17:35:10,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:35:10,980 INFO L470 AbstractCegarLoop]: Abstraction has 52886 states and 66817 transitions. [2021-11-07 17:35:10,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:10,981 INFO L276 IsEmpty]: Start isEmpty. Operand 52886 states and 66817 transitions. [2021-11-07 17:35:10,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-07 17:35:10,983 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:35:10,983 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:35:11,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 17:35:11,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-07 17:35:11,196 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-07 17:35:11,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:35:11,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1657860757, now seen corresponding path program 1 times [2021-11-07 17:35:11,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:35:11,208 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770232297] [2021-11-07 17:35:11,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:35:11,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:35:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:35:11,323 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:35:11,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:35:11,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770232297] [2021-11-07 17:35:11,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770232297] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 17:35:11,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738894873] [2021-11-07 17:35:11,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:35:11,324 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 17:35:11,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 17:35:11,325 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 17:35:11,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 17:35:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:35:11,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 1517 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 17:35:11,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 17:35:12,007 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:35:12,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 17:35:12,100 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:35:12,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738894873] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 17:35:12,101 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 17:35:12,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-07 17:35:12,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515929972] [2021-11-07 17:35:12,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-07 17:35:12,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 17:35:12,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:35:12,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 17:35:12,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-07 17:35:12,102 INFO L87 Difference]: Start difference. First operand 52886 states and 66817 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:13,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:35:13,187 INFO L93 Difference]: Finished difference Result 105704 states and 133578 transitions. [2021-11-07 17:35:13,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 17:35:13,188 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-07 17:35:13,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:35:13,289 INFO L225 Difference]: With dead ends: 105704 [2021-11-07 17:35:13,289 INFO L226 Difference]: Without dead ends: 52934 [2021-11-07 17:35:13,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 13.07ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-07 17:35:13,361 INFO L933 BasicCegarLoop]: 3302 mSDtfsCounter, 4 mSDsluCounter, 6600 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 9902 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.21ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.52ms IncrementalHoareTripleChecker+Time [2021-11-07 17:35:13,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 9902 Invalid, 17 Unknown, 0 Unchecked, 7.21ms Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 11.52ms Time] [2021-11-07 17:35:13,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52934 states. [2021-11-07 17:35:14,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52934 to 52934. [2021-11-07 17:35:14,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52934 states, 52797 states have (on average 1.266454533401519) internal successors, (66865), 52933 states have internal predecessors, (66865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:14,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52934 states to 52934 states and 66865 transitions. [2021-11-07 17:35:14,637 INFO L78 Accepts]: Start accepts. Automaton has 52934 states and 66865 transitions. Word has length 68 [2021-11-07 17:35:14,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:35:14,637 INFO L470 AbstractCegarLoop]: Abstraction has 52934 states and 66865 transitions. [2021-11-07 17:35:14,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:14,637 INFO L276 IsEmpty]: Start isEmpty. Operand 52934 states and 66865 transitions. [2021-11-07 17:35:14,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-07 17:35:14,638 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:35:14,639 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:35:14,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 17:35:14,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 17:35:14,852 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-07 17:35:14,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:35:14,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1710834079, now seen corresponding path program 2 times [2021-11-07 17:35:14,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:35:14,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243580079] [2021-11-07 17:35:14,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:35:14,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:35:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:35:14,977 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-07 17:35:14,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:35:14,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243580079] [2021-11-07 17:35:14,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243580079] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:35:14,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:35:14,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:35:14,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10457881] [2021-11-07 17:35:14,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:35:14,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:35:14,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:35:14,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:35:14,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:35:14,980 INFO L87 Difference]: Start difference. First operand 52934 states and 66865 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:16,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:35:16,155 INFO L93 Difference]: Finished difference Result 52934 states and 66865 transitions. [2021-11-07 17:35:16,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:35:16,155 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-11-07 17:35:16,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:35:16,250 INFO L225 Difference]: With dead ends: 52934 [2021-11-07 17:35:16,251 INFO L226 Difference]: Without dead ends: 52928 [2021-11-07 17:35:16,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 225.21ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:35:16,274 INFO L933 BasicCegarLoop]: 3292 mSDtfsCounter, 3245 mSDsluCounter, 3187 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3245 SdHoareTripleChecker+Valid, 6479 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.57ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83.95ms IncrementalHoareTripleChecker+Time [2021-11-07 17:35:16,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3245 Valid, 6479 Invalid, 115 Unknown, 0 Unchecked, 8.57ms Time], IncrementalHoareTripleChecker [37 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 83.95ms Time] [2021-11-07 17:35:16,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52928 states. [2021-11-07 17:35:17,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52928 to 52928. [2021-11-07 17:35:17,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52928 states, 52794 states have (on average 1.2664128499450695) internal successors, (66859), 52927 states have internal predecessors, (66859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:17,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52928 states to 52928 states and 66859 transitions. [2021-11-07 17:35:17,530 INFO L78 Accepts]: Start accepts. Automaton has 52928 states and 66859 transitions. Word has length 74 [2021-11-07 17:35:17,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:35:17,530 INFO L470 AbstractCegarLoop]: Abstraction has 52928 states and 66859 transitions. [2021-11-07 17:35:17,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:17,530 INFO L276 IsEmpty]: Start isEmpty. Operand 52928 states and 66859 transitions. [2021-11-07 17:35:17,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-07 17:35:17,532 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:35:17,532 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:35:17,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 17:35:17,532 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-07 17:35:17,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:35:17,533 INFO L85 PathProgramCache]: Analyzing trace with hash 861068580, now seen corresponding path program 1 times [2021-11-07 17:35:17,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:35:17,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824713473] [2021-11-07 17:35:17,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:35:17,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:35:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:35:17,625 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-07 17:35:17,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:35:17,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824713473] [2021-11-07 17:35:17,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824713473] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:35:17,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:35:17,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:35:17,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584897603] [2021-11-07 17:35:17,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:35:17,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:35:17,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:35:17,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:35:17,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:35:17,628 INFO L87 Difference]: Start difference. First operand 52928 states and 66859 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:18,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:35:18,661 INFO L93 Difference]: Finished difference Result 52928 states and 66859 transitions. [2021-11-07 17:35:18,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:35:18,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-07 17:35:18,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:35:18,754 INFO L225 Difference]: With dead ends: 52928 [2021-11-07 17:35:18,754 INFO L226 Difference]: Without dead ends: 52922 [2021-11-07 17:35:18,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.64ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:35:18,773 INFO L933 BasicCegarLoop]: 3286 mSDtfsCounter, 3234 mSDsluCounter, 3184 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3234 SdHoareTripleChecker+Valid, 6470 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.66ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 70.40ms IncrementalHoareTripleChecker+Time [2021-11-07 17:35:18,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3234 Valid, 6470 Invalid, 115 Unknown, 0 Unchecked, 6.66ms Time], IncrementalHoareTripleChecker [40 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 70.40ms Time] [2021-11-07 17:35:18,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52922 states. [2021-11-07 17:35:19,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52922 to 52922. [2021-11-07 17:35:19,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52922 states, 52791 states have (on average 1.266371161751056) internal successors, (66853), 52921 states have internal predecessors, (66853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:20,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52922 states to 52922 states and 66853 transitions. [2021-11-07 17:35:20,042 INFO L78 Accepts]: Start accepts. Automaton has 52922 states and 66853 transitions. Word has length 76 [2021-11-07 17:35:20,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:35:20,043 INFO L470 AbstractCegarLoop]: Abstraction has 52922 states and 66853 transitions. [2021-11-07 17:35:20,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:20,043 INFO L276 IsEmpty]: Start isEmpty. Operand 52922 states and 66853 transitions. [2021-11-07 17:35:20,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-07 17:35:20,049 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:35:20,050 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:35:20,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 17:35:20,050 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-07 17:35:20,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:35:20,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1441638297, now seen corresponding path program 1 times [2021-11-07 17:35:20,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:35:20,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650630054] [2021-11-07 17:35:20,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:35:20,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:35:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:35:20,157 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-07 17:35:20,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:35:20,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650630054] [2021-11-07 17:35:20,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650630054] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:35:20,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:35:20,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:35:20,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399414891] [2021-11-07 17:35:20,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:35:20,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:35:20,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:35:20,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:35:20,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:35:20,161 INFO L87 Difference]: Start difference. First operand 52922 states and 66853 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:21,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:35:21,241 INFO L93 Difference]: Finished difference Result 52922 states and 66853 transitions. [2021-11-07 17:35:21,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:35:21,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-07 17:35:21,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:35:21,336 INFO L225 Difference]: With dead ends: 52922 [2021-11-07 17:35:21,337 INFO L226 Difference]: Without dead ends: 52916 [2021-11-07 17:35:21,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.60ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:35:21,360 INFO L933 BasicCegarLoop]: 3280 mSDtfsCounter, 3226 mSDsluCounter, 3181 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3226 SdHoareTripleChecker+Valid, 6461 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.75ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.48ms IncrementalHoareTripleChecker+Time [2021-11-07 17:35:21,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3226 Valid, 6461 Invalid, 112 Unknown, 0 Unchecked, 6.75ms Time], IncrementalHoareTripleChecker [40 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 68.48ms Time] [2021-11-07 17:35:21,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52916 states. [2021-11-07 17:35:22,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52916 to 52916. [2021-11-07 17:35:22,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52916 states, 52788 states have (on average 1.2663294688186708) internal successors, (66847), 52915 states have internal predecessors, (66847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:22,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52916 states to 52916 states and 66847 transitions. [2021-11-07 17:35:22,669 INFO L78 Accepts]: Start accepts. Automaton has 52916 states and 66847 transitions. Word has length 78 [2021-11-07 17:35:22,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:35:22,669 INFO L470 AbstractCegarLoop]: Abstraction has 52916 states and 66847 transitions. [2021-11-07 17:35:22,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:22,670 INFO L276 IsEmpty]: Start isEmpty. Operand 52916 states and 66847 transitions. [2021-11-07 17:35:22,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 17:35:22,671 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:35:22,671 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:35:22,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 17:35:22,671 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-07 17:35:22,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:35:22,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1022569294, now seen corresponding path program 1 times [2021-11-07 17:35:22,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:35:22,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580684323] [2021-11-07 17:35:22,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:35:22,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:35:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:35:22,737 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-07 17:35:22,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:35:22,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580684323] [2021-11-07 17:35:22,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580684323] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:35:22,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:35:22,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:35:22,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511308806] [2021-11-07 17:35:22,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:35:22,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:35:22,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:35:22,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:35:22,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:35:22,740 INFO L87 Difference]: Start difference. First operand 52916 states and 66847 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:25,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:35:25,013 INFO L93 Difference]: Finished difference Result 118376 states and 150307 transitions. [2021-11-07 17:35:25,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:35:25,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-07 17:35:25,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:35:25,242 INFO L225 Difference]: With dead ends: 118376 [2021-11-07 17:35:25,242 INFO L226 Difference]: Without dead ends: 65576 [2021-11-07 17:35:25,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.45ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:35:25,291 INFO L933 BasicCegarLoop]: 4089 mSDtfsCounter, 1652 mSDsluCounter, 3119 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 519.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1652 SdHoareTripleChecker+Valid, 7208 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.12ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 601.52ms IncrementalHoareTripleChecker+Time [2021-11-07 17:35:25,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1652 Valid, 7208 Invalid, 100 Unknown, 0 Unchecked, 5.12ms Time], IncrementalHoareTripleChecker [21 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 601.52ms Time] [2021-11-07 17:35:25,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65576 states. [2021-11-07 17:35:26,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65576 to 65440. [2021-11-07 17:35:26,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65440 states, 65312 states have (on average 1.2730738608525232) internal successors, (83147), 65439 states have internal predecessors, (83147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:27,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65440 states to 65440 states and 83147 transitions. [2021-11-07 17:35:27,051 INFO L78 Accepts]: Start accepts. Automaton has 65440 states and 83147 transitions. Word has length 79 [2021-11-07 17:35:27,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:35:27,052 INFO L470 AbstractCegarLoop]: Abstraction has 65440 states and 83147 transitions. [2021-11-07 17:35:27,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:27,052 INFO L276 IsEmpty]: Start isEmpty. Operand 65440 states and 83147 transitions. [2021-11-07 17:35:27,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-07 17:35:27,053 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:35:27,053 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:35:27,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-07 17:35:27,054 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-07 17:35:27,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:35:27,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1860177962, now seen corresponding path program 1 times [2021-11-07 17:35:27,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:35:27,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682397311] [2021-11-07 17:35:27,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:35:27,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:35:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:35:27,141 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-07 17:35:27,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:35:27,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682397311] [2021-11-07 17:35:27,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682397311] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:35:27,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:35:27,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:35:27,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673126310] [2021-11-07 17:35:27,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:35:27,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:35:27,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:35:27,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:35:27,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:35:27,143 INFO L87 Difference]: Start difference. First operand 65440 states and 83147 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:35:28,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:35:28,800 INFO L93 Difference]: Finished difference Result 65440 states and 83147 transitions. [2021-11-07 17:35:28,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:35:28,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-07 17:35:28,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:35:28,912 INFO L225 Difference]: With dead ends: 65440 [2021-11-07 17:35:28,913 INFO L226 Difference]: Without dead ends: 65434 [2021-11-07 17:35:28,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.77ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:35:28,938 INFO L933 BasicCegarLoop]: 3184 mSDtfsCounter, 2546 mSDsluCounter, 3580 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 257.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2546 SdHoareTripleChecker+Valid, 6764 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.64ms SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 318.59ms IncrementalHoareTripleChecker+Time [2021-11-07 17:35:28,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2546 Valid, 6764 Invalid, 469 Unknown, 0 Unchecked, 6.64ms Time], IncrementalHoareTripleChecker [85 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 318.59ms Time] [2021-11-07 17:35:28,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65434 states.