./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.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 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 17:27:43,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 17:27:43,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 17:27:43,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 17:27:43,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 17:27:43,247 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 17:27:43,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 17:27:43,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 17:27:43,256 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 17:27:43,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 17:27:43,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 17:27:43,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 17:27:43,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 17:27:43,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 17:27:43,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 17:27:43,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 17:27:43,270 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 17:27:43,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 17:27:43,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 17:27:43,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 17:27:43,279 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 17:27:43,280 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 17:27:43,281 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 17:27:43,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 17:27:43,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 17:27:43,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 17:27:43,289 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 17:27:43,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 17:27:43,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 17:27:43,291 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 17:27:43,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 17:27:43,292 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 17:27:43,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 17:27:43,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 17:27:43,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 17:27:43,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 17:27:43,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 17:27:43,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 17:27:43,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 17:27:43,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 17:27:43,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 17:27:43,299 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 17:27:43,329 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 17:27:43,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 17:27:43,330 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 17:27:43,331 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 17:27:43,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 17:27:43,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 17:27:43,332 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 17:27:43,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 17:27:43,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 17:27:43,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 17:27:43,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 17:27:43,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 17:27:43,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 17:27:43,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 17:27:43,334 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 17:27:43,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 17:27:43,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 17:27:43,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 17:27:43,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 17:27:43,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:27:43,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 17:27:43,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 17:27:43,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 17:27:43,336 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 17:27:43,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 17:27:43,337 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 17:27:43,337 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 17:27:43,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 17:27:43,338 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 17:27:43,339 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de [2021-11-07 17:27:43,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 17:27:43,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 17:27:43,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 17:27:43,598 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 17:27:43,600 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 17:27:43,601 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2021-11-07 17:27:43,657 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fe9977ca/38e4b44ea3894b0b9e95203c894f5c96/FLAG47fbff7f8 [2021-11-07 17:27:44,294 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 17:27:44,295 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2021-11-07 17:27:44,331 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fe9977ca/38e4b44ea3894b0b9e95203c894f5c96/FLAG47fbff7f8 [2021-11-07 17:27:44,417 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fe9977ca/38e4b44ea3894b0b9e95203c894f5c96 [2021-11-07 17:27:44,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 17:27:44,420 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 17:27:44,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 17:27:44,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 17:27:44,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 17:27:44,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:27:44" (1/1) ... [2021-11-07 17:27:44,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16225dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:27:44, skipping insertion in model container [2021-11-07 17:27:44,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:27:44" (1/1) ... [2021-11-07 17:27:44,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 17:27:44,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 17:27:46,716 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2021-11-07 17:27:46,719 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2021-11-07 17:27:46,719 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2021-11-07 17:27:46,720 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2021-11-07 17:27:46,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:27:46,795 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 17:27:47,083 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2021-11-07 17:27:47,083 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2021-11-07 17:27:47,084 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2021-11-07 17:27:47,085 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2021-11-07 17:27:47,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:27:47,245 INFO L208 MainTranslator]: Completed translation [2021-11-07 17:27:47,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:27:47 WrapperNode [2021-11-07 17:27:47,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 17:27:47,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 17:27:47,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 17:27:47,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 17:27:47,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:27:47" (1/1) ... [2021-11-07 17:27:47,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:27:47" (1/1) ... [2021-11-07 17:27:47,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 17:27:47,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 17:27:47,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 17:27:47,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 17:27:47,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:27:47" (1/1) ... [2021-11-07 17:27:47,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:27:47" (1/1) ... [2021-11-07 17:27:48,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:27:47" (1/1) ... [2021-11-07 17:27:48,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:27:47" (1/1) ... [2021-11-07 17:27:48,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:27:47" (1/1) ... [2021-11-07 17:27:48,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:27:47" (1/1) ... [2021-11-07 17:27:48,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:27:47" (1/1) ... [2021-11-07 17:27:48,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 17:27:48,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 17:27:48,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 17:27:48,972 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 17:27:48,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:27:47" (1/1) ... [2021-11-07 17:27:48,995 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:27:49,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 17:27:49,049 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 17:27:49,080 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 17:27:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 17:27:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 17:27:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 17:27:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 17:27:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 17:27:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 17:27:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 17:27:49,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 17:27:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 17:27:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 17:27:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 17:27:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 17:27:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 17:27:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 17:27:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-07 17:27:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 17:28:01,548 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-07 17:28:01,548 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-07 17:28:01,549 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 17:28:01,549 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-07 17:28:01,550 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 17:28:01,550 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 17:28:01,588 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 17:28:01,588 INFO L299 CfgBuilder]: Removed 5020 assume(true) statements. [2021-11-07 17:28:01,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:28:01 BoogieIcfgContainer [2021-11-07 17:28:01,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 17:28:01,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 17:28:01,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 17:28:01,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 17:28:01,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:27:44" (1/3) ... [2021-11-07 17:28:01,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5a2284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:28:01, skipping insertion in model container [2021-11-07 17:28:01,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:27:47" (2/3) ... [2021-11-07 17:28:01,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5a2284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:28:01, skipping insertion in model container [2021-11-07 17:28:01,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:28:01" (3/3) ... [2021-11-07 17:28:01,607 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2021-11-07 17:28:01,613 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 17:28:01,613 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2021-11-07 17:28:01,687 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 17:28:01,694 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 17:28:01,695 INFO L340 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2021-11-07 17:28:01,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 4190 states, 4146 states have (on average 1.307284129281235) internal successors, (5420), 4189 states have internal predecessors, (5420), 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 17:28:01,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 17:28:01,796 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:28:01,797 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 17:28:01,797 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 17:28:01,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:28:01,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1114883933, now seen corresponding path program 1 times [2021-11-07 17:28:01,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:28:01,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324666063] [2021-11-07 17:28:01,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:28:01,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:28:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:28:02,291 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 17:28:02,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:28:02,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324666063] [2021-11-07 17:28:02,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324666063] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:28:02,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:28:02,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:28:02,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2995975] [2021-11-07 17:28:02,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:28:02,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:28:02,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:28:02,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:28:02,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:28:02,350 INFO L87 Difference]: Start difference. First operand has 4190 states, 4146 states have (on average 1.307284129281235) internal successors, (5420), 4189 states have internal predecessors, (5420), 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 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 17:28:02,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:28:02,972 INFO L93 Difference]: Finished difference Result 12072 states and 15622 transitions. [2021-11-07 17:28:02,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:28:02,974 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 17:28:02,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:28:03,028 INFO L225 Difference]: With dead ends: 12072 [2021-11-07 17:28:03,029 INFO L226 Difference]: Without dead ends: 7724 [2021-11-07 17:28:03,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.64ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:28:03,052 INFO L933 BasicCegarLoop]: 5207 mSDtfsCounter, 4902 mSDsluCounter, 5159 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 267.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4902 SdHoareTripleChecker+Valid, 10366 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.37ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 316.09ms IncrementalHoareTripleChecker+Time [2021-11-07 17:28:03,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4902 Valid, 10366 Invalid, 34 Unknown, 0 Unchecked, 31.37ms Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 316.09ms Time] [2021-11-07 17:28:03,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7724 states. [2021-11-07 17:28:03,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7724 to 7708. [2021-11-07 17:28:03,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7708 states, 7664 states have (on average 1.2519572025052192) internal successors, (9595), 7707 states have internal predecessors, (9595), 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 17:28:03,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7708 states to 7708 states and 9595 transitions. [2021-11-07 17:28:03,342 INFO L78 Accepts]: Start accepts. Automaton has 7708 states and 9595 transitions. Word has length 42 [2021-11-07 17:28:03,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:28:03,343 INFO L470 AbstractCegarLoop]: Abstraction has 7708 states and 9595 transitions. [2021-11-07 17:28:03,343 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 17:28:03,345 INFO L276 IsEmpty]: Start isEmpty. Operand 7708 states and 9595 transitions. [2021-11-07 17:28:03,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 17:28:03,351 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:28:03,351 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 17:28:03,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 17:28:03,352 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 17:28:03,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:28:03,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1435015324, now seen corresponding path program 1 times [2021-11-07 17:28:03,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:28:03,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586512360] [2021-11-07 17:28:03,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:28:03,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:28:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:28:03,548 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 17:28:03,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:28:03,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586512360] [2021-11-07 17:28:03,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586512360] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:28:03,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:28:03,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:28:03,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024067197] [2021-11-07 17:28:03,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:28:03,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:28:03,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:28:03,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:28:03,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:28:03,559 INFO L87 Difference]: Start difference. First operand 7708 states and 9595 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 17:28:04,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:28:04,424 INFO L93 Difference]: Finished difference Result 21388 states and 26599 transitions. [2021-11-07 17:28:04,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:28:04,425 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 17:28:04,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:28:04,486 INFO L225 Difference]: With dead ends: 21388 [2021-11-07 17:28:04,488 INFO L226 Difference]: Without dead ends: 13748 [2021-11-07 17:28:04,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.02ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:28:04,511 INFO L933 BasicCegarLoop]: 4918 mSDtfsCounter, 3875 mSDsluCounter, 4846 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 433.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3875 SdHoareTripleChecker+Valid, 9764 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.99ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 489.26ms IncrementalHoareTripleChecker+Time [2021-11-07 17:28:04,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3875 Valid, 9764 Invalid, 75 Unknown, 0 Unchecked, 19.99ms Time], IncrementalHoareTripleChecker [23 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 489.26ms Time] [2021-11-07 17:28:04,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13748 states. [2021-11-07 17:28:04,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13748 to 11656. [2021-11-07 17:28:05,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11656 states, 11612 states have (on average 1.2506889424733034) internal successors, (14523), 11655 states have internal predecessors, (14523), 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 17:28:05,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11656 states to 11656 states and 14523 transitions. [2021-11-07 17:28:05,034 INFO L78 Accepts]: Start accepts. Automaton has 11656 states and 14523 transitions. Word has length 42 [2021-11-07 17:28:05,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:28:05,040 INFO L470 AbstractCegarLoop]: Abstraction has 11656 states and 14523 transitions. [2021-11-07 17:28:05,041 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 17:28:05,041 INFO L276 IsEmpty]: Start isEmpty. Operand 11656 states and 14523 transitions. [2021-11-07 17:28:05,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-07 17:28:05,045 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:28:05,045 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:28:05,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 17:28:05,046 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 17:28:05,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:28:05,046 INFO L85 PathProgramCache]: Analyzing trace with hash -234934328, now seen corresponding path program 1 times [2021-11-07 17:28:05,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:28:05,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978817491] [2021-11-07 17:28:05,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:28:05,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:28:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:28:05,199 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 17:28:05,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:28:05,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978817491] [2021-11-07 17:28:05,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978817491] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:28:05,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:28:05,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:28:05,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403786358] [2021-11-07 17:28:05,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:28:05,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:28:05,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:28:05,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:28:05,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:28:05,202 INFO L87 Difference]: Start difference. First operand 11656 states and 14523 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 17:28:06,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:28:06,517 INFO L93 Difference]: Finished difference Result 21927 states and 27451 transitions. [2021-11-07 17:28:06,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:28:06,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2021-11-07 17:28:06,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:28:06,571 INFO L225 Difference]: With dead ends: 21927 [2021-11-07 17:28:06,571 INFO L226 Difference]: Without dead ends: 10339 [2021-11-07 17:28:06,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.88ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:28:06,599 INFO L933 BasicCegarLoop]: 5883 mSDtfsCounter, 2153 mSDsluCounter, 4784 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 995.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2153 SdHoareTripleChecker+Valid, 10667 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.28ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1072.98ms IncrementalHoareTripleChecker+Time [2021-11-07 17:28:06,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2153 Valid, 10667 Invalid, 100 Unknown, 0 Unchecked, 11.28ms Time], IncrementalHoareTripleChecker [21 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 1072.98ms Time] [2021-11-07 17:28:06,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10339 states. [2021-11-07 17:28:06,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10339 to 10257. [2021-11-07 17:28:06,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10257 states, 10213 states have (on average 1.2596690492509546) internal successors, (12865), 10256 states have internal predecessors, (12865), 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 17:28:06,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10257 states to 10257 states and 12865 transitions. [2021-11-07 17:28:06,887 INFO L78 Accepts]: Start accepts. Automaton has 10257 states and 12865 transitions. Word has length 57 [2021-11-07 17:28:06,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:28:06,888 INFO L470 AbstractCegarLoop]: Abstraction has 10257 states and 12865 transitions. [2021-11-07 17:28:06,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 17:28:06,888 INFO L276 IsEmpty]: Start isEmpty. Operand 10257 states and 12865 transitions. [2021-11-07 17:28:06,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-07 17:28:06,889 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:28:06,890 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:28:06,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 17:28:06,890 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 17:28:06,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:28:06,891 INFO L85 PathProgramCache]: Analyzing trace with hash -465593213, now seen corresponding path program 1 times [2021-11-07 17:28:06,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:28:06,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10063192] [2021-11-07 17:28:06,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:28:06,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:28:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:28:07,056 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 17:28:07,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:28:07,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10063192] [2021-11-07 17:28:07,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10063192] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:28:07,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:28:07,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:28:07,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47955233] [2021-11-07 17:28:07,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:28:07,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:28:07,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:28:07,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:28:07,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:28:07,060 INFO L87 Difference]: Start difference. First operand 10257 states and 12865 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) 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 17:28:07,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:28:07,984 INFO L93 Difference]: Finished difference Result 24003 states and 30042 transitions. [2021-11-07 17:28:07,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:28:07,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) 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 61 [2021-11-07 17:28:07,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:28:08,026 INFO L225 Difference]: With dead ends: 24003 [2021-11-07 17:28:08,027 INFO L226 Difference]: Without dead ends: 13814 [2021-11-07 17:28:08,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.84ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:28:08,054 INFO L933 BasicCegarLoop]: 4930 mSDtfsCounter, 3926 mSDsluCounter, 4876 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 634.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3926 SdHoareTripleChecker+Valid, 9806 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.77ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 678.07ms IncrementalHoareTripleChecker+Time [2021-11-07 17:28:08,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3926 Valid, 9806 Invalid, 68 Unknown, 0 Unchecked, 10.77ms Time], IncrementalHoareTripleChecker [9 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 678.07ms Time] [2021-11-07 17:28:08,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13814 states. [2021-11-07 17:28:08,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13814 to 13369. [2021-11-07 17:28:08,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13369 states, 13325 states have (on average 1.255234521575985) internal successors, (16726), 13368 states have internal predecessors, (16726), 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 17:28:08,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13369 states to 13369 states and 16726 transitions. [2021-11-07 17:28:08,596 INFO L78 Accepts]: Start accepts. Automaton has 13369 states and 16726 transitions. Word has length 61 [2021-11-07 17:28:08,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:28:08,596 INFO L470 AbstractCegarLoop]: Abstraction has 13369 states and 16726 transitions. [2021-11-07 17:28:08,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) 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 17:28:08,597 INFO L276 IsEmpty]: Start isEmpty. Operand 13369 states and 16726 transitions. [2021-11-07 17:28:08,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-07 17:28:08,598 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:28:08,598 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:28:08,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 17:28:08,598 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 17:28:08,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:28:08,599 INFO L85 PathProgramCache]: Analyzing trace with hash 451869666, now seen corresponding path program 1 times [2021-11-07 17:28:08,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:28:08,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379449541] [2021-11-07 17:28:08,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:28:08,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:28:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:28:08,739 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 17:28:08,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:28:08,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379449541] [2021-11-07 17:28:08,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379449541] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:28:08,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:28:08,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:28:08,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364572304] [2021-11-07 17:28:08,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:28:08,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:28:08,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:28:08,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:28:08,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:28:08,743 INFO L87 Difference]: Start difference. First operand 13369 states and 16726 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:28:10,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:28:10,178 INFO L93 Difference]: Finished difference Result 39403 states and 49397 transitions. [2021-11-07 17:28:10,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:28:10,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-11-07 17:28:10,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:28:10,268 INFO L225 Difference]: With dead ends: 39403 [2021-11-07 17:28:10,268 INFO L226 Difference]: Without dead ends: 26165 [2021-11-07 17:28:10,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.76ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:28:10,308 INFO L933 BasicCegarLoop]: 5007 mSDtfsCounter, 4661 mSDsluCounter, 4914 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 903.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4661 SdHoareTripleChecker+Valid, 9921 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.85ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 963.08ms IncrementalHoareTripleChecker+Time [2021-11-07 17:28:10,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4661 Valid, 9921 Invalid, 30 Unknown, 0 Unchecked, 13.85ms Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 963.08ms Time] [2021-11-07 17:28:10,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26165 states. [2021-11-07 17:28:11,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26165 to 26149. [2021-11-07 17:28:11,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26149 states, 26105 states have (on average 1.255468301091745) internal successors, (32774), 26148 states have internal predecessors, (32774), 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 17:28:11,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26149 states to 26149 states and 32774 transitions. [2021-11-07 17:28:11,174 INFO L78 Accepts]: Start accepts. Automaton has 26149 states and 32774 transitions. Word has length 71 [2021-11-07 17:28:11,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:28:11,177 INFO L470 AbstractCegarLoop]: Abstraction has 26149 states and 32774 transitions. [2021-11-07 17:28:11,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:28:11,177 INFO L276 IsEmpty]: Start isEmpty. Operand 26149 states and 32774 transitions. [2021-11-07 17:28:11,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-07 17:28:11,179 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:28:11,179 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:28:11,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 17:28:11,180 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 17:28:11,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:28:11,181 INFO L85 PathProgramCache]: Analyzing trace with hash -827994012, now seen corresponding path program 1 times [2021-11-07 17:28:11,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:28:11,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284231921] [2021-11-07 17:28:11,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:28:11,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:28:11,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:28:11,290 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 17:28:11,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:28:11,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284231921] [2021-11-07 17:28:11,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284231921] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:28:11,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:28:11,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:28:11,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337548503] [2021-11-07 17:28:11,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:28:11,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:28:11,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:28:11,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:28:11,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:28:11,293 INFO L87 Difference]: Start difference. First operand 26149 states and 32774 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:28:12,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:28:12,714 INFO L93 Difference]: Finished difference Result 64971 states and 81509 transitions. [2021-11-07 17:28:12,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:28:12,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-11-07 17:28:12,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:28:12,846 INFO L225 Difference]: With dead ends: 64971 [2021-11-07 17:28:12,847 INFO L226 Difference]: Without dead ends: 38953 [2021-11-07 17:28:12,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.70ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:28:12,919 INFO L933 BasicCegarLoop]: 9595 mSDtfsCounter, 4707 mSDsluCounter, 4869 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 563.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4707 SdHoareTripleChecker+Valid, 14464 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.28ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 617.87ms IncrementalHoareTripleChecker+Time [2021-11-07 17:28:12,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4707 Valid, 14464 Invalid, 32 Unknown, 0 Unchecked, 15.28ms Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 617.87ms Time] [2021-11-07 17:28:12,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38953 states. [2021-11-07 17:28:13,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38953 to 38888. [2021-11-07 17:28:13,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38888 states, 38844 states have (on average 1.2558181443723613) internal successors, (48781), 38887 states have internal predecessors, (48781), 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 17:28:14,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38888 states to 38888 states and 48781 transitions. [2021-11-07 17:28:14,061 INFO L78 Accepts]: Start accepts. Automaton has 38888 states and 48781 transitions. Word has length 71 [2021-11-07 17:28:14,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:28:14,063 INFO L470 AbstractCegarLoop]: Abstraction has 38888 states and 48781 transitions. [2021-11-07 17:28:14,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:28:14,063 INFO L276 IsEmpty]: Start isEmpty. Operand 38888 states and 48781 transitions. [2021-11-07 17:28:14,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 17:28:14,065 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:28:14,065 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, 1, 1, 1, 1] [2021-11-07 17:28:14,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 17:28:14,066 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 17:28:14,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:28:14,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1803764864, now seen corresponding path program 1 times [2021-11-07 17:28:14,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:28:14,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254280439] [2021-11-07 17:28:14,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:28:14,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:28:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:28:14,239 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:28:14,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:28:14,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254280439] [2021-11-07 17:28:14,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254280439] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:28:14,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:28:14,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:28:14,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479624770] [2021-11-07 17:28:14,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:28:14,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:28:14,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:28:14,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:28:14,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:28:14,243 INFO L87 Difference]: Start difference. First operand 38888 states and 48781 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 17:28:15,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:28:15,053 INFO L93 Difference]: Finished difference Result 38888 states and 48781 transitions. [2021-11-07 17:28:15,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:28:15,054 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 72 [2021-11-07 17:28:15,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:28:15,144 INFO L225 Difference]: With dead ends: 38888 [2021-11-07 17:28:15,145 INFO L226 Difference]: Without dead ends: 38882 [2021-11-07 17:28:15,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.75ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:28:15,169 INFO L933 BasicCegarLoop]: 4928 mSDtfsCounter, 4877 mSDsluCounter, 4832 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4877 SdHoareTripleChecker+Valid, 9760 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.79ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 93.21ms IncrementalHoareTripleChecker+Time [2021-11-07 17:28:15,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4877 Valid, 9760 Invalid, 106 Unknown, 0 Unchecked, 15.79ms Time], IncrementalHoareTripleChecker [34 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 93.21ms Time] [2021-11-07 17:28:15,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38882 states. [2021-11-07 17:28:16,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38882 to 38882. [2021-11-07 17:28:16,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38882 states, 38841 states have (on average 1.2557606652763833) internal successors, (48775), 38881 states have internal predecessors, (48775), 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 17:28:16,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38882 states to 38882 states and 48775 transitions. [2021-11-07 17:28:16,222 INFO L78 Accepts]: Start accepts. Automaton has 38882 states and 48775 transitions. Word has length 72 [2021-11-07 17:28:16,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:28:16,223 INFO L470 AbstractCegarLoop]: Abstraction has 38882 states and 48775 transitions. [2021-11-07 17:28:16,224 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 17:28:16,224 INFO L276 IsEmpty]: Start isEmpty. Operand 38882 states and 48775 transitions. [2021-11-07 17:28:16,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-07 17:28:16,225 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:28:16,225 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, 1, 1, 1, 1, 1, 1] [2021-11-07 17:28:16,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 17:28:16,226 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 17:28:16,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:28:16,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1748607325, now seen corresponding path program 1 times [2021-11-07 17:28:16,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:28:16,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911074652] [2021-11-07 17:28:16,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:28:16,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:28:16,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:28:16,400 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:28:16,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:28:16,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911074652] [2021-11-07 17:28:16,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911074652] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:28:16,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:28:16,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:28:16,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690693658] [2021-11-07 17:28:16,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:28:16,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:28:16,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:28:16,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:28:16,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:28:16,403 INFO L87 Difference]: Start difference. First operand 38882 states and 48775 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 17:28:17,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:28:17,421 INFO L93 Difference]: Finished difference Result 38882 states and 48775 transitions. [2021-11-07 17:28:17,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:28:17,422 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 74 [2021-11-07 17:28:17,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:28:17,529 INFO L225 Difference]: With dead ends: 38882 [2021-11-07 17:28:17,529 INFO L226 Difference]: Without dead ends: 38876 [2021-11-07 17:28:17,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.59ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:28:17,551 INFO L933 BasicCegarLoop]: 4922 mSDtfsCounter, 4866 mSDsluCounter, 4829 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4866 SdHoareTripleChecker+Valid, 9751 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.74ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 99.24ms IncrementalHoareTripleChecker+Time [2021-11-07 17:28:17,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4866 Valid, 9751 Invalid, 106 Unknown, 0 Unchecked, 13.74ms Time], IncrementalHoareTripleChecker [37 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 99.24ms Time] [2021-11-07 17:28:17,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38876 states. [2021-11-07 17:28:18,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38876 to 38876. [2021-11-07 17:28:18,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38876 states, 38838 states have (on average 1.255703177300582) internal successors, (48769), 38875 states have internal predecessors, (48769), 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 17:28:18,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38876 states to 38876 states and 48769 transitions. [2021-11-07 17:28:18,717 INFO L78 Accepts]: Start accepts. Automaton has 38876 states and 48769 transitions. Word has length 74 [2021-11-07 17:28:18,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:28:18,718 INFO L470 AbstractCegarLoop]: Abstraction has 38876 states and 48769 transitions. [2021-11-07 17:28:18,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:28:18,718 INFO L276 IsEmpty]: Start isEmpty. Operand 38876 states and 48769 transitions. [2021-11-07 17:28:18,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-07 17:28:18,719 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:28:18,720 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:28:18,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 17:28:18,720 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 17:28:18,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:28:18,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1079280314, now seen corresponding path program 1 times [2021-11-07 17:28:18,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:28:18,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400866646] [2021-11-07 17:28:18,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:28:18,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:28:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:28:18,885 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:28:18,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:28:18,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400866646] [2021-11-07 17:28:18,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400866646] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:28:18,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:28:18,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:28:18,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988464048] [2021-11-07 17:28:18,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:28:18,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:28:18,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:28:18,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:28:18,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:28:18,889 INFO L87 Difference]: Start difference. First operand 38876 states and 48769 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:28:19,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:28:19,864 INFO L93 Difference]: Finished difference Result 38876 states and 48769 transitions. [2021-11-07 17:28:19,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:28:19,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-07 17:28:19,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:28:19,943 INFO L225 Difference]: With dead ends: 38876 [2021-11-07 17:28:19,943 INFO L226 Difference]: Without dead ends: 38870 [2021-11-07 17:28:19,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.95ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:28:19,959 INFO L933 BasicCegarLoop]: 4916 mSDtfsCounter, 4858 mSDsluCounter, 4826 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4858 SdHoareTripleChecker+Valid, 9742 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.02ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 78.87ms IncrementalHoareTripleChecker+Time [2021-11-07 17:28:19,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4858 Valid, 9742 Invalid, 103 Unknown, 0 Unchecked, 21.02ms Time], IncrementalHoareTripleChecker [37 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 78.87ms Time] [2021-11-07 17:28:20,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38870 states. [2021-11-07 17:28:20,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38870 to 38870. [2021-11-07 17:28:20,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38870 states, 38835 states have (on average 1.2556456804428995) internal successors, (48763), 38869 states have internal predecessors, (48763), 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 17:28:20,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38870 states to 38870 states and 48763 transitions. [2021-11-07 17:28:20,901 INFO L78 Accepts]: Start accepts. Automaton has 38870 states and 48763 transitions. Word has length 76 [2021-11-07 17:28:20,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:28:20,902 INFO L470 AbstractCegarLoop]: Abstraction has 38870 states and 48763 transitions. [2021-11-07 17:28:20,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:28:20,902 INFO L276 IsEmpty]: Start isEmpty. Operand 38870 states and 48763 transitions. [2021-11-07 17:28:20,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-07 17:28:20,908 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:28:20,908 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:28:20,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 17:28:20,909 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 17:28:20,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:28:20,911 INFO L85 PathProgramCache]: Analyzing trace with hash -2101116823, now seen corresponding path program 1 times [2021-11-07 17:28:20,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:28:20,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189150335] [2021-11-07 17:28:20,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:28:20,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:28:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:28:21,090 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:28:21,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:28:21,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189150335] [2021-11-07 17:28:21,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189150335] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:28:21,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:28:21,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:28:21,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910963207] [2021-11-07 17:28:21,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:28:21,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:28:21,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:28:21,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:28:21,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:28:21,094 INFO L87 Difference]: Start difference. First operand 38870 states and 48763 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:28:22,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:28:22,025 INFO L93 Difference]: Finished difference Result 38870 states and 48763 transitions. [2021-11-07 17:28:22,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:28:22,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-07 17:28:22,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:28:22,107 INFO L225 Difference]: With dead ends: 38870 [2021-11-07 17:28:22,107 INFO L226 Difference]: Without dead ends: 38864 [2021-11-07 17:28:22,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.78ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:28:22,128 INFO L933 BasicCegarLoop]: 4910 mSDtfsCounter, 4850 mSDsluCounter, 4823 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4850 SdHoareTripleChecker+Valid, 9733 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.80ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.15ms IncrementalHoareTripleChecker+Time [2021-11-07 17:28:22,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4850 Valid, 9733 Invalid, 100 Unknown, 0 Unchecked, 10.80ms Time], IncrementalHoareTripleChecker [37 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 77.15ms Time] [2021-11-07 17:28:22,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38864 states. [2021-11-07 17:28:23,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38864 to 38864. [2021-11-07 17:28:23,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38864 states, 38832 states have (on average 1.2555881747012774) internal successors, (48757), 38863 states have internal predecessors, (48757), 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 17:28:23,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38864 states to 38864 states and 48757 transitions. [2021-11-07 17:28:23,155 INFO L78 Accepts]: Start accepts. Automaton has 38864 states and 48757 transitions. Word has length 78 [2021-11-07 17:28:23,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:28:23,155 INFO L470 AbstractCegarLoop]: Abstraction has 38864 states and 48757 transitions. [2021-11-07 17:28:23,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:28:23,155 INFO L276 IsEmpty]: Start isEmpty. Operand 38864 states and 48757 transitions. [2021-11-07 17:28:23,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-07 17:28:23,158 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:28:23,158 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:28:23,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 17:28:23,158 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 17:28:23,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:28:23,159 INFO L85 PathProgramCache]: Analyzing trace with hash -538490868, now seen corresponding path program 1 times [2021-11-07 17:28:23,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:28:23,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761471096] [2021-11-07 17:28:23,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:28:23,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:28:23,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:28:23,304 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:28:23,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:28:23,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761471096] [2021-11-07 17:28:23,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761471096] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:28:23,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:28:23,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:28:23,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181530946] [2021-11-07 17:28:23,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:28:23,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:28:23,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:28:23,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:28:23,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:28:23,306 INFO L87 Difference]: Start difference. First operand 38864 states and 48757 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:28:24,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:28:24,267 INFO L93 Difference]: Finished difference Result 38864 states and 48757 transitions. [2021-11-07 17:28:24,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:28:24,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-07 17:28:24,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:28:24,436 INFO L225 Difference]: With dead ends: 38864 [2021-11-07 17:28:24,436 INFO L226 Difference]: Without dead ends: 38858 [2021-11-07 17:28:24,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.25ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:28:24,451 INFO L933 BasicCegarLoop]: 4904 mSDtfsCounter, 4842 mSDsluCounter, 4820 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4842 SdHoareTripleChecker+Valid, 9724 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.46ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.92ms IncrementalHoareTripleChecker+Time [2021-11-07 17:28:24,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4842 Valid, 9724 Invalid, 97 Unknown, 0 Unchecked, 10.46ms Time], IncrementalHoareTripleChecker [37 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 71.92ms Time] [2021-11-07 17:28:24,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38858 states. [2021-11-07 17:28:25,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38858 to 38858. [2021-11-07 17:28:25,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38858 states, 38829 states have (on average 1.2555306600736562) internal successors, (48751), 38857 states have internal predecessors, (48751), 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 17:28:25,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38858 states to 38858 states and 48751 transitions. [2021-11-07 17:28:25,438 INFO L78 Accepts]: Start accepts. Automaton has 38858 states and 48751 transitions. Word has length 80 [2021-11-07 17:28:25,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:28:25,438 INFO L470 AbstractCegarLoop]: Abstraction has 38858 states and 48751 transitions. [2021-11-07 17:28:25,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:28:25,439 INFO L276 IsEmpty]: Start isEmpty. Operand 38858 states and 48751 transitions. [2021-11-07 17:28:25,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 17:28:25,445 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:28:25,445 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:28:25,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 17:28:25,445 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 17:28:25,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:28:25,446 INFO L85 PathProgramCache]: Analyzing trace with hash -2093501393, now seen corresponding path program 1 times [2021-11-07 17:28:25,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:28:25,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652881227] [2021-11-07 17:28:25,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:28:25,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:28:25,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:28:25,593 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:28:25,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:28:25,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652881227] [2021-11-07 17:28:25,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652881227] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:28:25,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:28:25,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:28:25,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487938635] [2021-11-07 17:28:25,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:28:25,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:28:25,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:28:25,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:28:25,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:28:25,596 INFO L87 Difference]: Start difference. First operand 38858 states and 48751 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:28:26,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:28:26,980 INFO L93 Difference]: Finished difference Result 38858 states and 48751 transitions. [2021-11-07 17:28:26,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:28:26,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-07 17:28:26,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:28:27,059 INFO L225 Difference]: With dead ends: 38858 [2021-11-07 17:28:27,059 INFO L226 Difference]: Without dead ends: 38852 [2021-11-07 17:28:27,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.18ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:28:27,081 INFO L933 BasicCegarLoop]: 4898 mSDtfsCounter, 4834 mSDsluCounter, 4817 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4834 SdHoareTripleChecker+Valid, 9715 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.87ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 70.72ms IncrementalHoareTripleChecker+Time [2021-11-07 17:28:27,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4834 Valid, 9715 Invalid, 94 Unknown, 0 Unchecked, 10.87ms Time], IncrementalHoareTripleChecker [37 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 70.72ms Time] [2021-11-07 17:28:27,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38852 states. [2021-11-07 17:28:28,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38852 to 38852. [2021-11-07 17:28:28,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38852 states, 38826 states have (on average 1.2554731365579765) internal successors, (48745), 38851 states have internal predecessors, (48745), 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 17:28:28,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38852 states to 38852 states and 48745 transitions. [2021-11-07 17:28:28,317 INFO L78 Accepts]: Start accepts. Automaton has 38852 states and 48745 transitions. Word has length 82 [2021-11-07 17:28:28,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:28:28,317 INFO L470 AbstractCegarLoop]: Abstraction has 38852 states and 48745 transitions. [2021-11-07 17:28:28,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:28:28,318 INFO L276 IsEmpty]: Start isEmpty. Operand 38852 states and 48745 transitions. [2021-11-07 17:28:28,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 17:28:28,320 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:28:28,320 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:28:28,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 17:28:28,320 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 17:28:28,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:28:28,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1809996590, now seen corresponding path program 1 times [2021-11-07 17:28:28,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:28:28,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022965262] [2021-11-07 17:28:28,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:28:28,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:28:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:28:28,488 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:28:28,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:28:28,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022965262] [2021-11-07 17:28:28,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022965262] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:28:28,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:28:28,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:28:28,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727055416] [2021-11-07 17:28:28,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:28:28,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:28:28,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:28:28,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:28:28,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:28:28,490 INFO L87 Difference]: Start difference. First operand 38852 states and 48745 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:28:29,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:28:29,610 INFO L93 Difference]: Finished difference Result 38852 states and 48745 transitions. [2021-11-07 17:28:29,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:28:29,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-11-07 17:28:29,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:28:29,673 INFO L225 Difference]: With dead ends: 38852 [2021-11-07 17:28:29,673 INFO L226 Difference]: Without dead ends: 38846 [2021-11-07 17:28:29,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.15ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:28:29,692 INFO L933 BasicCegarLoop]: 4884 mSDtfsCounter, 3771 mSDsluCounter, 5845 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 87.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3771 SdHoareTripleChecker+Valid, 10729 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.51ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 108.46ms IncrementalHoareTripleChecker+Time [2021-11-07 17:28:29,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3771 Valid, 10729 Invalid, 123 Unknown, 0 Unchecked, 10.51ms Time], IncrementalHoareTripleChecker [41 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 108.46ms Time] [2021-11-07 17:28:29,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38846 states. [2021-11-07 17:28:30,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38846 to 38846. [2021-11-07 17:28:30,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38846 states, 38823 states have (on average 1.2554156041521778) internal successors, (48739), 38845 states have internal predecessors, (48739), 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 17:28:31,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38846 states to 38846 states and 48739 transitions. [2021-11-07 17:28:31,046 INFO L78 Accepts]: Start accepts. Automaton has 38846 states and 48739 transitions. Word has length 84 [2021-11-07 17:28:31,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:28:31,046 INFO L470 AbstractCegarLoop]: Abstraction has 38846 states and 48739 transitions. [2021-11-07 17:28:31,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:28:31,046 INFO L276 IsEmpty]: Start isEmpty. Operand 38846 states and 48739 transitions. [2021-11-07 17:28:31,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-07 17:28:31,051 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:28:31,051 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:28:31,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 17:28:31,052 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 17:28:31,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:28:31,053 INFO L85 PathProgramCache]: Analyzing trace with hash 55179765, now seen corresponding path program 1 times [2021-11-07 17:28:31,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:28:31,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504422770] [2021-11-07 17:28:31,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:28:31,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:28:31,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:28:31,183 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:28:31,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:28:31,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504422770] [2021-11-07 17:28:31,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504422770] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:28:31,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:28:31,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:28:31,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705325723] [2021-11-07 17:28:31,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:28:31,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:28:31,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:28:31,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:28:31,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:28:31,186 INFO L87 Difference]: Start difference. First operand 38846 states and 48739 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:28:32,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:28:32,403 INFO L93 Difference]: Finished difference Result 38846 states and 48739 transitions. [2021-11-07 17:28:32,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:28:32,404 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-07 17:28:32,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:28:32,467 INFO L225 Difference]: With dead ends: 38846 [2021-11-07 17:28:32,467 INFO L226 Difference]: Without dead ends: 38840 [2021-11-07 17:28:32,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.63ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:28:32,484 INFO L933 BasicCegarLoop]: 4886 mSDtfsCounter, 4818 mSDsluCounter, 4811 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4818 SdHoareTripleChecker+Valid, 9697 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.90ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.28ms IncrementalHoareTripleChecker+Time [2021-11-07 17:28:32,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4818 Valid, 9697 Invalid, 88 Unknown, 0 Unchecked, 10.90ms Time], IncrementalHoareTripleChecker [37 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 62.28ms Time] [2021-11-07 17:28:32,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38840 states. [2021-11-07 17:28:33,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38840 to 38840. [2021-11-07 17:28:33,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38840 states, 38820 states have (on average 1.255358062854199) internal successors, (48733), 38839 states have internal predecessors, (48733), 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 17:28:33,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38840 states to 38840 states and 48733 transitions. [2021-11-07 17:28:33,712 INFO L78 Accepts]: Start accepts. Automaton has 38840 states and 48733 transitions. Word has length 86 [2021-11-07 17:28:33,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:28:33,712 INFO L470 AbstractCegarLoop]: Abstraction has 38840 states and 48733 transitions. [2021-11-07 17:28:33,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:28:33,713 INFO L276 IsEmpty]: Start isEmpty. Operand 38840 states and 48733 transitions. [2021-11-07 17:28:33,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-07 17:28:33,715 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:28:33,716 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:28:33,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-07 17:28:33,716 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 17:28:33,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:28:33,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1488294808, now seen corresponding path program 1 times [2021-11-07 17:28:33,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:28:33,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118416913] [2021-11-07 17:28:33,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:28:33,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:28:33,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:28:34,015 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:28:34,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:28:34,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118416913] [2021-11-07 17:28:34,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118416913] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:28:34,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:28:34,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:28:34,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815733952] [2021-11-07 17:28:34,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:28:34,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:28:34,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:28:34,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:28:34,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:28:34,018 INFO L87 Difference]: Start difference. First operand 38840 states and 48733 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:28:35,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:28:35,025 INFO L93 Difference]: Finished difference Result 38840 states and 48733 transitions. [2021-11-07 17:28:35,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:28:35,025 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-11-07 17:28:35,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:28:35,085 INFO L225 Difference]: With dead ends: 38840 [2021-11-07 17:28:35,085 INFO L226 Difference]: Without dead ends: 38834 [2021-11-07 17:28:35,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.43ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:28:35,105 INFO L933 BasicCegarLoop]: 4880 mSDtfsCounter, 4810 mSDsluCounter, 4808 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4810 SdHoareTripleChecker+Valid, 9688 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.95ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.21ms IncrementalHoareTripleChecker+Time [2021-11-07 17:28:35,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4810 Valid, 9688 Invalid, 85 Unknown, 0 Unchecked, 9.95ms Time], IncrementalHoareTripleChecker [37 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 58.21ms Time] [2021-11-07 17:28:35,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38834 states. [2021-11-07 17:28:36,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38834 to 38834. [2021-11-07 17:28:36,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38834 states, 38817 states have (on average 1.255300512661978) internal successors, (48727), 38833 states have internal predecessors, (48727), 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 17:28:36,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38834 states to 38834 states and 48727 transitions. [2021-11-07 17:28:36,351 INFO L78 Accepts]: Start accepts. Automaton has 38834 states and 48727 transitions. Word has length 88 [2021-11-07 17:28:36,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:28:36,351 INFO L470 AbstractCegarLoop]: Abstraction has 38834 states and 48727 transitions. [2021-11-07 17:28:36,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:28:36,352 INFO L276 IsEmpty]: Start isEmpty. Operand 38834 states and 48727 transitions. [2021-11-07 17:28:36,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-07 17:28:36,355 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:28:36,355 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:28:36,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-07 17:28:36,355 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 17:28:36,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:28:36,356 INFO L85 PathProgramCache]: Analyzing trace with hash 2057427073, now seen corresponding path program 1 times [2021-11-07 17:28:36,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:28:36,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800095104] [2021-11-07 17:28:36,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:28:36,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:28:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:28:36,500 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:28:36,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:28:36,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800095104] [2021-11-07 17:28:36,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800095104] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:28:36,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:28:36,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:28:36,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662475739] [2021-11-07 17:28:36,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:28:36,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:28:36,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:28:36,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:28:36,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:28:36,504 INFO L87 Difference]: Start difference. First operand 38834 states and 48727 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 17:28:38,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:28:38,530 INFO L93 Difference]: Finished difference Result 86619 states and 109040 transitions. [2021-11-07 17:28:38,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:28:38,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 89 [2021-11-07 17:28:38,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:28:38,605 INFO L225 Difference]: With dead ends: 86619 [2021-11-07 17:28:38,605 INFO L226 Difference]: Without dead ends: 47916 [2021-11-07 17:28:38,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.85ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:28:38,656 INFO L933 BasicCegarLoop]: 6916 mSDtfsCounter, 2044 mSDsluCounter, 4809 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 591.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2044 SdHoareTripleChecker+Valid, 11725 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.97ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 654.49ms IncrementalHoareTripleChecker+Time [2021-11-07 17:28:38,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2044 Valid, 11725 Invalid, 98 Unknown, 0 Unchecked, 7.97ms Time], IncrementalHoareTripleChecker [15 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 654.49ms Time] [2021-11-07 17:28:38,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47916 states. [2021-11-07 17:28:40,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47916 to 47837. [2021-11-07 17:28:40,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47837 states, 47820 states have (on average 1.25913843580092) internal successors, (60212), 47836 states have internal predecessors, (60212), 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 17:28:40,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47837 states to 47837 states and 60212 transitions. [2021-11-07 17:28:40,118 INFO L78 Accepts]: Start accepts. Automaton has 47837 states and 60212 transitions. Word has length 89 [2021-11-07 17:28:40,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:28:40,118 INFO L470 AbstractCegarLoop]: Abstraction has 47837 states and 60212 transitions. [2021-11-07 17:28:40,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 17:28:40,118 INFO L276 IsEmpty]: Start isEmpty. Operand 47837 states and 60212 transitions. [2021-11-07 17:28:40,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-07 17:28:40,120 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:28:40,120 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, 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 17:28:40,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-07 17:28:40,120 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 17:28:40,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:28:40,121 INFO L85 PathProgramCache]: Analyzing trace with hash 27349435, now seen corresponding path program 1 times [2021-11-07 17:28:40,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:28:40,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783402848] [2021-11-07 17:28:40,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:28:40,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:28:40,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:28:40,244 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:28:40,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:28:40,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783402848] [2021-11-07 17:28:40,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783402848] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:28:40,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:28:40,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:28:40,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520370150] [2021-11-07 17:28:40,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:28:40,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:28:40,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:28:40,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:28:40,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:28:40,246 INFO L87 Difference]: Start difference. First operand 47837 states and 60212 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)