./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 5f08f0f0 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-5f08f0f [2021-11-05 20:46:34,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 20:46:34,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 20:46:34,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 20:46:34,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 20:46:34,246 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 20:46:34,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 20:46:34,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 20:46:34,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 20:46:34,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 20:46:34,256 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 20:46:34,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 20:46:34,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 20:46:34,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 20:46:34,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 20:46:34,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 20:46:34,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 20:46:34,264 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 20:46:34,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 20:46:34,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 20:46:34,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 20:46:34,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 20:46:34,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 20:46:34,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 20:46:34,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 20:46:34,280 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 20:46:34,280 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 20:46:34,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 20:46:34,282 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 20:46:34,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 20:46:34,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 20:46:34,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 20:46:34,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 20:46:34,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 20:46:34,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 20:46:34,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 20:46:34,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 20:46:34,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 20:46:34,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 20:46:34,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 20:46:34,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 20:46:34,291 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 20:46:34,327 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 20:46:34,328 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 20:46:34,328 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 20:46:34,329 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 20:46:34,330 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 20:46:34,330 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 20:46:34,330 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 20:46:34,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 20:46:34,331 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 20:46:34,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 20:46:34,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 20:46:34,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 20:46:34,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 20:46:34,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 20:46:34,332 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 20:46:34,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 20:46:34,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 20:46:34,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 20:46:34,332 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 20:46:34,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:46:34,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 20:46:34,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 20:46:34,333 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 20:46:34,333 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 20:46:34,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 20:46:34,333 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 20:46:34,334 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 20:46:34,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 20:46:34,334 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 20:46:34,334 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de [2021-11-05 20:46:34,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 20:46:34,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 20:46:34,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 20:46:34,597 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 20:46:34,597 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 20:46:34,598 INFO L432 ainManager$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 [2021-11-05 20:46:34,654 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a2f7a278/3fe26c3eb5c0478080406d5eef426dbf/FLAG01d60018d [2021-11-05 20:46:35,238 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 20:46:35,238 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 [2021-11-05 20:46:35,279 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a2f7a278/3fe26c3eb5c0478080406d5eef426dbf/FLAG01d60018d [2021-11-05 20:46:35,435 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a2f7a278/3fe26c3eb5c0478080406d5eef426dbf [2021-11-05 20:46:35,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 20:46:35,438 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 20:46:35,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 20:46:35,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 20:46:35,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 20:46:35,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:46:35" (1/1) ... [2021-11-05 20:46:35,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46872c90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:35, skipping insertion in model container [2021-11-05 20:46:35,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:46:35" (1/1) ... [2021-11-05 20:46:35,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 20:46:35,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 20:46:37,163 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] [2021-11-05 20:46:37,165 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] [2021-11-05 20:46:37,166 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] [2021-11-05 20:46:37,166 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] [2021-11-05 20:46:37,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:46:37,230 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 20:46:37,450 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] [2021-11-05 20:46:37,451 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] [2021-11-05 20:46:37,451 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] [2021-11-05 20:46:37,452 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] [2021-11-05 20:46:37,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:46:37,582 INFO L208 MainTranslator]: Completed translation [2021-11-05 20:46:37,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:37 WrapperNode [2021-11-05 20:46:37,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 20:46:37,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 20:46:37,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 20:46:37,584 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 20:46:37,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:37" (1/1) ... [2021-11-05 20:46:37,681 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:37" (1/1) ... [2021-11-05 20:46:38,236 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 20:46:38,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 20:46:38,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 20:46:38,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 20:46:38,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:37" (1/1) ... [2021-11-05 20:46:38,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:37" (1/1) ... [2021-11-05 20:46:38,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:37" (1/1) ... [2021-11-05 20:46:38,422 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:37" (1/1) ... [2021-11-05 20:46:38,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:37" (1/1) ... [2021-11-05 20:46:38,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:37" (1/1) ... [2021-11-05 20:46:38,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:37" (1/1) ... [2021-11-05 20:46:38,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 20:46:38,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 20:46:38,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 20:46:38,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 20:46:38,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:37" (1/1) ... [2021-11-05 20:46:38,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:46:38,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 20:46:38,961 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) [2021-11-05 20:46:38,981 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 [2021-11-05 20:46:38,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 20:46:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 20:46:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 20:46:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 20:46:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 20:46:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 20:46:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 20:46:38,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 20:46:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 20:46:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 20:46:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 20:46:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 20:46:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 20:46:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 20:46:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-05 20:46:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 20:46:48,268 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-05 20:46:48,269 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-05 20:46:48,269 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 20:46:48,269 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 20:46:48,270 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 20:46:48,270 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 20:46:48,291 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 20:46:48,292 INFO L299 CfgBuilder]: Removed 5020 assume(true) statements. [2021-11-05 20:46:48,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:46:48 BoogieIcfgContainer [2021-11-05 20:46:48,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 20:46:48,297 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 20:46:48,297 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 20:46:48,299 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 20:46:48,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:46:35" (1/3) ... [2021-11-05 20:46:48,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a13c264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:46:48, skipping insertion in model container [2021-11-05 20:46:48,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:37" (2/3) ... [2021-11-05 20:46:48,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a13c264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:46:48, skipping insertion in model container [2021-11-05 20:46:48,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:46:48" (3/3) ... [2021-11-05 20:46:48,301 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2021-11-05 20:46:48,304 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 20:46:48,305 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2021-11-05 20:46:48,357 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 20:46:48,362 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 [2021-11-05 20:46:48,363 INFO L340 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2021-11-05 20:46:48,419 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) [2021-11-05 20:46:48,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-05 20:46:48,431 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:46:48,432 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] [2021-11-05 20:46:48,432 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)] === [2021-11-05 20:46:48,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:46:48,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1114883933, now seen corresponding path program 1 times [2021-11-05 20:46:48,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:46:48,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14662083] [2021-11-05 20:46:48,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:46:48,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:46:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:46:48,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:46:48,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:46:48,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14662083] [2021-11-05 20:46:48,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14662083] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:46:48,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:46:48,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:46:48,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408081401] [2021-11-05 20:46:48,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:46:48,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:46:48,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:46:48,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:46:48,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:46:48,899 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) [2021-11-05 20:46:49,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:46:49,379 INFO L93 Difference]: Finished difference Result 12072 states and 15622 transitions. [2021-11-05 20:46:49,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:46:49,382 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 [2021-11-05 20:46:49,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:46:49,424 INFO L225 Difference]: With dead ends: 12072 [2021-11-05 20:46:49,424 INFO L226 Difference]: Without dead ends: 7724 [2021-11-05 20:46:49,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.56ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:46:49,443 INFO L933 BasicCegarLoop]: 5207 mSDtfsCounter, 4902 mSDsluCounter, 5159 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 238.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4902 SdHoareTripleChecker+Valid, 10366 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.50ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 270.44ms IncrementalHoareTripleChecker+Time [2021-11-05 20:46:49,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4902 Valid, 10366 Invalid, 34 Unknown, 0 Unchecked, 21.50ms Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 270.44ms Time] [2021-11-05 20:46:49,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7724 states. [2021-11-05 20:46:49,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7724 to 7708. [2021-11-05 20:46:49,643 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) [2021-11-05 20:46:49,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7708 states to 7708 states and 9595 transitions. [2021-11-05 20:46:49,666 INFO L78 Accepts]: Start accepts. Automaton has 7708 states and 9595 transitions. Word has length 42 [2021-11-05 20:46:49,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:46:49,667 INFO L470 AbstractCegarLoop]: Abstraction has 7708 states and 9595 transitions. [2021-11-05 20:46:49,667 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) [2021-11-05 20:46:49,668 INFO L276 IsEmpty]: Start isEmpty. Operand 7708 states and 9595 transitions. [2021-11-05 20:46:49,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-05 20:46:49,676 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:46:49,676 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] [2021-11-05 20:46:49,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 20:46:49,676 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)] === [2021-11-05 20:46:49,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:46:49,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1435015324, now seen corresponding path program 1 times [2021-11-05 20:46:49,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:46:49,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361861089] [2021-11-05 20:46:49,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:46:49,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:46:49,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:46:49,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:46:49,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:46:49,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361861089] [2021-11-05 20:46:49,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361861089] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:46:49,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:46:49,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:46:49,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609484058] [2021-11-05 20:46:49,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:46:49,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:46:49,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:46:49,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:46:49,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:46:49,810 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) [2021-11-05 20:46:50,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:46:50,332 INFO L93 Difference]: Finished difference Result 21388 states and 26599 transitions. [2021-11-05 20:46:50,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:46:50,333 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 [2021-11-05 20:46:50,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:46:50,379 INFO L225 Difference]: With dead ends: 21388 [2021-11-05 20:46:50,379 INFO L226 Difference]: Without dead ends: 13748 [2021-11-05 20:46:50,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.47ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:46:50,400 INFO L933 BasicCegarLoop]: 4918 mSDtfsCounter, 3875 mSDsluCounter, 4846 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 273.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3875 SdHoareTripleChecker+Valid, 9764 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.49ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 311.51ms IncrementalHoareTripleChecker+Time [2021-11-05 20:46:50,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3875 Valid, 9764 Invalid, 75 Unknown, 0 Unchecked, 11.49ms Time], IncrementalHoareTripleChecker [23 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 311.51ms Time] [2021-11-05 20:46:50,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13748 states. [2021-11-05 20:46:50,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13748 to 11656. [2021-11-05 20:46:50,795 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) [2021-11-05 20:46:50,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11656 states to 11656 states and 14523 transitions. [2021-11-05 20:46:50,822 INFO L78 Accepts]: Start accepts. Automaton has 11656 states and 14523 transitions. Word has length 42 [2021-11-05 20:46:50,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:46:50,827 INFO L470 AbstractCegarLoop]: Abstraction has 11656 states and 14523 transitions. [2021-11-05 20:46:50,828 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) [2021-11-05 20:46:50,828 INFO L276 IsEmpty]: Start isEmpty. Operand 11656 states and 14523 transitions. [2021-11-05 20:46:50,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-05 20:46:50,831 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:46:50,831 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] [2021-11-05 20:46:50,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 20:46:50,832 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)] === [2021-11-05 20:46:50,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:46:50,832 INFO L85 PathProgramCache]: Analyzing trace with hash -234934328, now seen corresponding path program 1 times [2021-11-05 20:46:50,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:46:50,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232117483] [2021-11-05 20:46:50,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:46:50,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:46:50,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:46:50,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:46:50,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:46:50,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232117483] [2021-11-05 20:46:50,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232117483] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:46:50,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:46:50,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:46:50,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530447375] [2021-11-05 20:46:50,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:46:50,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:46:50,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:46:50,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:46:50,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:46:50,957 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) [2021-11-05 20:46:52,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:46:52,017 INFO L93 Difference]: Finished difference Result 21927 states and 27451 transitions. [2021-11-05 20:46:52,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:46:52,017 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 [2021-11-05 20:46:52,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:46:52,058 INFO L225 Difference]: With dead ends: 21927 [2021-11-05 20:46:52,058 INFO L226 Difference]: Without dead ends: 10339 [2021-11-05 20:46:52,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.44ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:46:52,080 INFO L933 BasicCegarLoop]: 5883 mSDtfsCounter, 2153 mSDsluCounter, 4784 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 771.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2153 SdHoareTripleChecker+Valid, 10667 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.61ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 838.47ms IncrementalHoareTripleChecker+Time [2021-11-05 20:46:52,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2153 Valid, 10667 Invalid, 100 Unknown, 0 Unchecked, 10.61ms Time], IncrementalHoareTripleChecker [21 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 838.47ms Time] [2021-11-05 20:46:52,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10339 states. [2021-11-05 20:46:52,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10339 to 10257. [2021-11-05 20:46:52,311 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) [2021-11-05 20:46:52,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10257 states to 10257 states and 12865 transitions. [2021-11-05 20:46:52,331 INFO L78 Accepts]: Start accepts. Automaton has 10257 states and 12865 transitions. Word has length 57 [2021-11-05 20:46:52,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:46:52,331 INFO L470 AbstractCegarLoop]: Abstraction has 10257 states and 12865 transitions. [2021-11-05 20:46:52,331 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) [2021-11-05 20:46:52,332 INFO L276 IsEmpty]: Start isEmpty. Operand 10257 states and 12865 transitions. [2021-11-05 20:46:52,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-05 20:46:52,333 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:46:52,333 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] [2021-11-05 20:46:52,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 20:46:52,333 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)] === [2021-11-05 20:46:52,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:46:52,334 INFO L85 PathProgramCache]: Analyzing trace with hash -465593213, now seen corresponding path program 1 times [2021-11-05 20:46:52,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:46:52,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430962079] [2021-11-05 20:46:52,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:46:52,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:46:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:46:52,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:46:52,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:46:52,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430962079] [2021-11-05 20:46:52,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430962079] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:46:52,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:46:52,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:46:52,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292919058] [2021-11-05 20:46:52,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:46:52,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:46:52,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:46:52,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:46:52,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:46:52,463 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) [2021-11-05 20:46:53,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:46:53,285 INFO L93 Difference]: Finished difference Result 24003 states and 30042 transitions. [2021-11-05 20:46:53,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:46:53,286 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 [2021-11-05 20:46:53,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:46:53,312 INFO L225 Difference]: With dead ends: 24003 [2021-11-05 20:46:53,312 INFO L226 Difference]: Without dead ends: 13814 [2021-11-05 20:46:53,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.48ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:46:53,329 INFO L933 BasicCegarLoop]: 4930 mSDtfsCounter, 3926 mSDsluCounter, 4876 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 519.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3926 SdHoareTripleChecker+Valid, 9806 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.67ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 567.32ms IncrementalHoareTripleChecker+Time [2021-11-05 20:46:53,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3926 Valid, 9806 Invalid, 68 Unknown, 0 Unchecked, 12.67ms Time], IncrementalHoareTripleChecker [9 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 567.32ms Time] [2021-11-05 20:46:53,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13814 states. [2021-11-05 20:46:53,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13814 to 13369. [2021-11-05 20:46:53,573 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) [2021-11-05 20:46:53,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13369 states to 13369 states and 16726 transitions. [2021-11-05 20:46:53,593 INFO L78 Accepts]: Start accepts. Automaton has 13369 states and 16726 transitions. Word has length 61 [2021-11-05 20:46:53,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:46:53,594 INFO L470 AbstractCegarLoop]: Abstraction has 13369 states and 16726 transitions. [2021-11-05 20:46:53,594 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) [2021-11-05 20:46:53,594 INFO L276 IsEmpty]: Start isEmpty. Operand 13369 states and 16726 transitions. [2021-11-05 20:46:53,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-05 20:46:53,595 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:46:53,595 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] [2021-11-05 20:46:53,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 20:46:53,595 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)] === [2021-11-05 20:46:53,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:46:53,596 INFO L85 PathProgramCache]: Analyzing trace with hash 451869666, now seen corresponding path program 1 times [2021-11-05 20:46:53,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:46:53,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590297507] [2021-11-05 20:46:53,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:46:53,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:46:53,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:46:53,665 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:46:53,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:46:53,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590297507] [2021-11-05 20:46:53,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590297507] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:46:53,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:46:53,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:46:53,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142470633] [2021-11-05 20:46:53,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:46:53,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:46:53,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:46:53,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:46:53,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:46:53,667 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) [2021-11-05 20:46:54,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:46:54,758 INFO L93 Difference]: Finished difference Result 39403 states and 49397 transitions. [2021-11-05 20:46:54,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:46:54,759 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 [2021-11-05 20:46:54,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:46:54,806 INFO L225 Difference]: With dead ends: 39403 [2021-11-05 20:46:54,807 INFO L226 Difference]: Without dead ends: 26165 [2021-11-05 20:46:54,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.36ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:46:54,829 INFO L933 BasicCegarLoop]: 5007 mSDtfsCounter, 4661 mSDsluCounter, 4914 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 623.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4661 SdHoareTripleChecker+Valid, 9921 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.09ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 662.94ms IncrementalHoareTripleChecker+Time [2021-11-05 20:46:54,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4661 Valid, 9921 Invalid, 30 Unknown, 0 Unchecked, 10.09ms Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 662.94ms Time] [2021-11-05 20:46:54,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26165 states. [2021-11-05 20:46:55,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26165 to 26149. [2021-11-05 20:46:55,253 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) [2021-11-05 20:46:55,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26149 states to 26149 states and 32774 transitions. [2021-11-05 20:46:55,298 INFO L78 Accepts]: Start accepts. Automaton has 26149 states and 32774 transitions. Word has length 71 [2021-11-05 20:46:55,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:46:55,298 INFO L470 AbstractCegarLoop]: Abstraction has 26149 states and 32774 transitions. [2021-11-05 20:46:55,298 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) [2021-11-05 20:46:55,299 INFO L276 IsEmpty]: Start isEmpty. Operand 26149 states and 32774 transitions. [2021-11-05 20:46:55,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-05 20:46:55,300 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:46:55,300 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] [2021-11-05 20:46:55,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 20:46:55,300 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)] === [2021-11-05 20:46:55,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:46:55,301 INFO L85 PathProgramCache]: Analyzing trace with hash -827994012, now seen corresponding path program 1 times [2021-11-05 20:46:55,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:46:55,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863960979] [2021-11-05 20:46:55,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:46:55,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:46:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:46:55,386 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:46:55,387 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:46:55,387 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863960979] [2021-11-05 20:46:55,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863960979] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:46:55,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:46:55,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:46:55,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540447715] [2021-11-05 20:46:55,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:46:55,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:46:55,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:46:55,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:46:55,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:46:55,389 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) [2021-11-05 20:46:56,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:46:56,187 INFO L93 Difference]: Finished difference Result 64971 states and 81509 transitions. [2021-11-05 20:46:56,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:46:56,187 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 [2021-11-05 20:46:56,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:46:56,270 INFO L225 Difference]: With dead ends: 64971 [2021-11-05 20:46:56,270 INFO L226 Difference]: Without dead ends: 38953 [2021-11-05 20:46:56,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.42ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:46:56,531 INFO L933 BasicCegarLoop]: 9595 mSDtfsCounter, 4707 mSDsluCounter, 4869 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 341.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4707 SdHoareTripleChecker+Valid, 14464 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.08ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 377.16ms IncrementalHoareTripleChecker+Time [2021-11-05 20:46:56,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4707 Valid, 14464 Invalid, 32 Unknown, 0 Unchecked, 10.08ms Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 377.16ms Time] [2021-11-05 20:46:56,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38953 states. [2021-11-05 20:46:56,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38953 to 38888. [2021-11-05 20:46:57,036 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) [2021-11-05 20:46:57,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38888 states to 38888 states and 48781 transitions. [2021-11-05 20:46:57,304 INFO L78 Accepts]: Start accepts. Automaton has 38888 states and 48781 transitions. Word has length 71 [2021-11-05 20:46:57,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:46:57,305 INFO L470 AbstractCegarLoop]: Abstraction has 38888 states and 48781 transitions. [2021-11-05 20:46:57,305 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) [2021-11-05 20:46:57,306 INFO L276 IsEmpty]: Start isEmpty. Operand 38888 states and 48781 transitions. [2021-11-05 20:46:57,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-05 20:46:57,306 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:46:57,307 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] [2021-11-05 20:46:57,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 20:46:57,308 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)] === [2021-11-05 20:46:57,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:46:57,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1803764864, now seen corresponding path program 1 times [2021-11-05 20:46:57,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:46:57,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950393245] [2021-11-05 20:46:57,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:46:57,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:46:57,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:46:57,429 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:46:57,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:46:57,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950393245] [2021-11-05 20:46:57,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950393245] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:46:57,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:46:57,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:46:57,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435308641] [2021-11-05 20:46:57,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:46:57,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:46:57,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:46:57,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:46:57,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:46:57,434 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) [2021-11-05 20:46:57,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:46:57,874 INFO L93 Difference]: Finished difference Result 38888 states and 48781 transitions. [2021-11-05 20:46:57,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:46:57,875 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 [2021-11-05 20:46:57,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:46:57,948 INFO L225 Difference]: With dead ends: 38888 [2021-11-05 20:46:57,949 INFO L226 Difference]: Without dead ends: 38882 [2021-11-05 20:46:57,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.55ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:46:57,969 INFO L933 BasicCegarLoop]: 4928 mSDtfsCounter, 4877 mSDsluCounter, 4832 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4877 SdHoareTripleChecker+Valid, 9760 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.93ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.24ms IncrementalHoareTripleChecker+Time [2021-11-05 20:46:57,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4877 Valid, 9760 Invalid, 106 Unknown, 0 Unchecked, 12.93ms Time], IncrementalHoareTripleChecker [34 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 69.24ms Time] [2021-11-05 20:46:58,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38882 states. [2021-11-05 20:46:58,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38882 to 38882. [2021-11-05 20:46:58,898 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) [2021-11-05 20:46:58,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38882 states to 38882 states and 48775 transitions. [2021-11-05 20:46:58,970 INFO L78 Accepts]: Start accepts. Automaton has 38882 states and 48775 transitions. Word has length 72 [2021-11-05 20:46:58,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:46:58,970 INFO L470 AbstractCegarLoop]: Abstraction has 38882 states and 48775 transitions. [2021-11-05 20:46:58,970 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) [2021-11-05 20:46:58,971 INFO L276 IsEmpty]: Start isEmpty. Operand 38882 states and 48775 transitions. [2021-11-05 20:46:58,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-05 20:46:58,972 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:46:58,972 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] [2021-11-05 20:46:58,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 20:46:58,973 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)] === [2021-11-05 20:46:58,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:46:58,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1748607325, now seen corresponding path program 1 times [2021-11-05 20:46:58,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:46:58,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009359016] [2021-11-05 20:46:58,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:46:58,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:46:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:46:59,099 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:46:59,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:46:59,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009359016] [2021-11-05 20:46:59,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009359016] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:46:59,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:46:59,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:46:59,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206075590] [2021-11-05 20:46:59,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:46:59,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:46:59,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:46:59,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:46:59,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:46:59,102 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) [2021-11-05 20:46:59,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:46:59,768 INFO L93 Difference]: Finished difference Result 38882 states and 48775 transitions. [2021-11-05 20:46:59,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:46:59,769 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 [2021-11-05 20:46:59,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:46:59,834 INFO L225 Difference]: With dead ends: 38882 [2021-11-05 20:46:59,834 INFO L226 Difference]: Without dead ends: 38876 [2021-11-05 20:46:59,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.75ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:46:59,853 INFO L933 BasicCegarLoop]: 4922 mSDtfsCounter, 4866 mSDsluCounter, 4829 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 185.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4866 SdHoareTripleChecker+Valid, 9751 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.73ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 202.00ms IncrementalHoareTripleChecker+Time [2021-11-05 20:46:59,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4866 Valid, 9751 Invalid, 106 Unknown, 0 Unchecked, 21.73ms Time], IncrementalHoareTripleChecker [37 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 202.00ms Time] [2021-11-05 20:46:59,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38876 states. [2021-11-05 20:47:00,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38876 to 38876. [2021-11-05 20:47:00,620 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) [2021-11-05 20:47:00,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38876 states to 38876 states and 48769 transitions. [2021-11-05 20:47:00,677 INFO L78 Accepts]: Start accepts. Automaton has 38876 states and 48769 transitions. Word has length 74 [2021-11-05 20:47:00,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:47:00,678 INFO L470 AbstractCegarLoop]: Abstraction has 38876 states and 48769 transitions. [2021-11-05 20:47:00,678 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) [2021-11-05 20:47:00,678 INFO L276 IsEmpty]: Start isEmpty. Operand 38876 states and 48769 transitions. [2021-11-05 20:47:00,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-05 20:47:00,679 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:47:00,679 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] [2021-11-05 20:47:00,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 20:47:00,680 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)] === [2021-11-05 20:47:00,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:47:00,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1079280314, now seen corresponding path program 1 times [2021-11-05 20:47:00,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:47:00,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022232251] [2021-11-05 20:47:00,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:47:00,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:47:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:47:00,800 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:47:00,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:47:00,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022232251] [2021-11-05 20:47:00,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022232251] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:47:00,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:47:00,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:47:00,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607004325] [2021-11-05 20:47:00,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:47:00,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:47:00,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:47:00,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:47:00,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:47:00,803 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) [2021-11-05 20:47:01,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:47:01,583 INFO L93 Difference]: Finished difference Result 38876 states and 48769 transitions. [2021-11-05 20:47:01,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:47:01,584 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 [2021-11-05 20:47:01,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:47:01,631 INFO L225 Difference]: With dead ends: 38876 [2021-11-05 20:47:01,632 INFO L226 Difference]: Without dead ends: 38870 [2021-11-05 20:47:01,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.56ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:47:01,644 INFO L933 BasicCegarLoop]: 4916 mSDtfsCounter, 4858 mSDsluCounter, 4826 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4858 SdHoareTripleChecker+Valid, 9742 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.31ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 82.54ms IncrementalHoareTripleChecker+Time [2021-11-05 20:47:01,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4858 Valid, 9742 Invalid, 103 Unknown, 0 Unchecked, 9.31ms Time], IncrementalHoareTripleChecker [37 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 82.54ms Time] [2021-11-05 20:47:01,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38870 states. [2021-11-05 20:47:02,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38870 to 38870. [2021-11-05 20:47:02,577 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) [2021-11-05 20:47:02,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38870 states to 38870 states and 48763 transitions. [2021-11-05 20:47:02,634 INFO L78 Accepts]: Start accepts. Automaton has 38870 states and 48763 transitions. Word has length 76 [2021-11-05 20:47:02,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:47:02,634 INFO L470 AbstractCegarLoop]: Abstraction has 38870 states and 48763 transitions. [2021-11-05 20:47:02,634 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) [2021-11-05 20:47:02,634 INFO L276 IsEmpty]: Start isEmpty. Operand 38870 states and 48763 transitions. [2021-11-05 20:47:02,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-05 20:47:02,636 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:47:02,636 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] [2021-11-05 20:47:02,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 20:47:02,636 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)] === [2021-11-05 20:47:02,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:47:02,637 INFO L85 PathProgramCache]: Analyzing trace with hash -2101116823, now seen corresponding path program 1 times [2021-11-05 20:47:02,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:47:02,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95951005] [2021-11-05 20:47:02,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:47:02,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:47:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:47:02,736 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:47:02,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:47:02,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95951005] [2021-11-05 20:47:02,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95951005] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:47:02,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:47:02,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:47:02,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239152303] [2021-11-05 20:47:02,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:47:02,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:47:02,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:47:02,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:47:02,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:47:02,738 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) [2021-11-05 20:47:03,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:47:03,429 INFO L93 Difference]: Finished difference Result 38870 states and 48763 transitions. [2021-11-05 20:47:03,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:47:03,430 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 [2021-11-05 20:47:03,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:47:03,481 INFO L225 Difference]: With dead ends: 38870 [2021-11-05 20:47:03,481 INFO L226 Difference]: Without dead ends: 38864 [2021-11-05 20:47:03,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.42ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:47:03,500 INFO L933 BasicCegarLoop]: 4910 mSDtfsCounter, 4850 mSDsluCounter, 4823 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4850 SdHoareTripleChecker+Valid, 9733 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.18ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.28ms IncrementalHoareTripleChecker+Time [2021-11-05 20:47:03,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4850 Valid, 9733 Invalid, 100 Unknown, 0 Unchecked, 9.18ms Time], IncrementalHoareTripleChecker [37 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 57.28ms Time] [2021-11-05 20:47:03,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38864 states. [2021-11-05 20:47:04,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38864 to 38864. [2021-11-05 20:47:04,421 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) [2021-11-05 20:47:04,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38864 states to 38864 states and 48757 transitions. [2021-11-05 20:47:04,486 INFO L78 Accepts]: Start accepts. Automaton has 38864 states and 48757 transitions. Word has length 78 [2021-11-05 20:47:04,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:47:04,486 INFO L470 AbstractCegarLoop]: Abstraction has 38864 states and 48757 transitions. [2021-11-05 20:47:04,486 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) [2021-11-05 20:47:04,486 INFO L276 IsEmpty]: Start isEmpty. Operand 38864 states and 48757 transitions. [2021-11-05 20:47:04,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-05 20:47:04,488 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:47:04,489 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] [2021-11-05 20:47:04,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 20:47:04,489 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)] === [2021-11-05 20:47:04,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:47:04,489 INFO L85 PathProgramCache]: Analyzing trace with hash -538490868, now seen corresponding path program 1 times [2021-11-05 20:47:04,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:47:04,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525836072] [2021-11-05 20:47:04,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:47:04,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:47:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:47:04,606 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:47:04,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:47:04,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525836072] [2021-11-05 20:47:04,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525836072] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:47:04,607 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:47:04,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:47:04,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576347191] [2021-11-05 20:47:04,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:47:04,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:47:04,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:47:04,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:47:04,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:47:04,610 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) [2021-11-05 20:47:05,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:47:05,538 INFO L93 Difference]: Finished difference Result 38864 states and 48757 transitions. [2021-11-05 20:47:05,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:47:05,538 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 [2021-11-05 20:47:05,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:47:05,592 INFO L225 Difference]: With dead ends: 38864 [2021-11-05 20:47:05,592 INFO L226 Difference]: Without dead ends: 38858 [2021-11-05 20:47:05,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.37ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:47:05,605 INFO L933 BasicCegarLoop]: 4904 mSDtfsCounter, 4842 mSDsluCounter, 4820 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4842 SdHoareTripleChecker+Valid, 9724 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.95ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.87ms IncrementalHoareTripleChecker+Time [2021-11-05 20:47:05,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4842 Valid, 9724 Invalid, 97 Unknown, 0 Unchecked, 10.95ms Time], IncrementalHoareTripleChecker [37 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 58.87ms Time] [2021-11-05 20:47:05,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38858 states. [2021-11-05 20:47:06,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38858 to 38858. [2021-11-05 20:47:06,450 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) [2021-11-05 20:47:06,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38858 states to 38858 states and 48751 transitions. [2021-11-05 20:47:06,617 INFO L78 Accepts]: Start accepts. Automaton has 38858 states and 48751 transitions. Word has length 80 [2021-11-05 20:47:06,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:47:06,617 INFO L470 AbstractCegarLoop]: Abstraction has 38858 states and 48751 transitions. [2021-11-05 20:47:06,617 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) [2021-11-05 20:47:06,617 INFO L276 IsEmpty]: Start isEmpty. Operand 38858 states and 48751 transitions. [2021-11-05 20:47:06,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-05 20:47:06,619 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:47:06,619 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] [2021-11-05 20:47:06,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-05 20:47:06,619 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)] === [2021-11-05 20:47:06,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:47:06,620 INFO L85 PathProgramCache]: Analyzing trace with hash -2093501393, now seen corresponding path program 1 times [2021-11-05 20:47:06,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:47:06,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267853784] [2021-11-05 20:47:06,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:47:06,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:47:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:47:06,720 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:47:06,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:47:06,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267853784] [2021-11-05 20:47:06,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267853784] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:47:06,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:47:06,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:47:06,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634270495] [2021-11-05 20:47:06,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:47:06,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:47:06,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:47:06,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:47:06,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:47:06,722 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) [2021-11-05 20:47:07,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:47:07,542 INFO L93 Difference]: Finished difference Result 38858 states and 48751 transitions. [2021-11-05 20:47:07,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:47:07,544 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 [2021-11-05 20:47:07,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:47:07,595 INFO L225 Difference]: With dead ends: 38858 [2021-11-05 20:47:07,595 INFO L226 Difference]: Without dead ends: 38852 [2021-11-05 20:47:07,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.68ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:47:07,608 INFO L933 BasicCegarLoop]: 4898 mSDtfsCounter, 4834 mSDsluCounter, 4817 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4834 SdHoareTripleChecker+Valid, 9715 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.27ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.47ms IncrementalHoareTripleChecker+Time [2021-11-05 20:47:07,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4834 Valid, 9715 Invalid, 94 Unknown, 0 Unchecked, 8.27ms Time], IncrementalHoareTripleChecker [37 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 47.47ms Time] [2021-11-05 20:47:07,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38852 states. [2021-11-05 20:47:08,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38852 to 38852. [2021-11-05 20:47:08,709 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) [2021-11-05 20:47:08,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38852 states to 38852 states and 48745 transitions. [2021-11-05 20:47:08,781 INFO L78 Accepts]: Start accepts. Automaton has 38852 states and 48745 transitions. Word has length 82 [2021-11-05 20:47:08,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:47:08,786 INFO L470 AbstractCegarLoop]: Abstraction has 38852 states and 48745 transitions. [2021-11-05 20:47:08,786 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) [2021-11-05 20:47:08,786 INFO L276 IsEmpty]: Start isEmpty. Operand 38852 states and 48745 transitions. [2021-11-05 20:47:08,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-05 20:47:08,788 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:47:08,788 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] [2021-11-05 20:47:08,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-05 20:47:08,788 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)] === [2021-11-05 20:47:08,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:47:08,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1809996590, now seen corresponding path program 1 times [2021-11-05 20:47:08,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:47:08,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916345804] [2021-11-05 20:47:08,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:47:08,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:47:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:47:08,884 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:47:08,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:47:08,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916345804] [2021-11-05 20:47:08,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916345804] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:47:08,885 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:47:08,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:47:08,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455749660] [2021-11-05 20:47:08,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:47:08,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:47:08,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:47:08,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:47:08,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:47:08,886 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) [2021-11-05 20:47:09,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:47:09,868 INFO L93 Difference]: Finished difference Result 38852 states and 48745 transitions. [2021-11-05 20:47:09,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:47:09,868 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 [2021-11-05 20:47:09,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:47:09,926 INFO L225 Difference]: With dead ends: 38852 [2021-11-05 20:47:09,927 INFO L226 Difference]: Without dead ends: 38846 [2021-11-05 20:47:09,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.75ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:47:09,939 INFO L933 BasicCegarLoop]: 4884 mSDtfsCounter, 3771 mSDsluCounter, 5845 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3771 SdHoareTripleChecker+Valid, 10729 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 111.23ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 107.95ms IncrementalHoareTripleChecker+Time [2021-11-05 20:47:09,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3771 Valid, 10729 Invalid, 123 Unknown, 0 Unchecked, 111.23ms Time], IncrementalHoareTripleChecker [41 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 107.95ms Time] [2021-11-05 20:47:09,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38846 states. [2021-11-05 20:47:10,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38846 to 38846. [2021-11-05 20:47:11,006 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) [2021-11-05 20:47:11,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38846 states to 38846 states and 48739 transitions. [2021-11-05 20:47:11,074 INFO L78 Accepts]: Start accepts. Automaton has 38846 states and 48739 transitions. Word has length 84 [2021-11-05 20:47:11,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:47:11,074 INFO L470 AbstractCegarLoop]: Abstraction has 38846 states and 48739 transitions. [2021-11-05 20:47:11,074 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) [2021-11-05 20:47:11,074 INFO L276 IsEmpty]: Start isEmpty. Operand 38846 states and 48739 transitions. [2021-11-05 20:47:11,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-05 20:47:11,076 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:47:11,077 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] [2021-11-05 20:47:11,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-05 20:47:11,077 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)] === [2021-11-05 20:47:11,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:47:11,077 INFO L85 PathProgramCache]: Analyzing trace with hash 55179765, now seen corresponding path program 1 times [2021-11-05 20:47:11,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:47:11,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8111740] [2021-11-05 20:47:11,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:47:11,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:47:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:47:11,198 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:47:11,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:47:11,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8111740] [2021-11-05 20:47:11,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8111740] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:47:11,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:47:11,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:47:11,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790637300] [2021-11-05 20:47:11,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:47:11,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:47:11,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:47:11,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:47:11,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:47:11,200 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) [2021-11-05 20:47:12,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:47:12,226 INFO L93 Difference]: Finished difference Result 38846 states and 48739 transitions. [2021-11-05 20:47:12,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:47:12,226 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 [2021-11-05 20:47:12,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:47:12,285 INFO L225 Difference]: With dead ends: 38846 [2021-11-05 20:47:12,285 INFO L226 Difference]: Without dead ends: 38840 [2021-11-05 20:47:12,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.61ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:47:12,302 INFO L933 BasicCegarLoop]: 4886 mSDtfsCounter, 4818 mSDsluCounter, 4811 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4818 SdHoareTripleChecker+Valid, 9697 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.71ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.97ms IncrementalHoareTripleChecker+Time [2021-11-05 20:47:12,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4818 Valid, 9697 Invalid, 88 Unknown, 0 Unchecked, 10.71ms Time], IncrementalHoareTripleChecker [37 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 67.97ms Time] [2021-11-05 20:47:12,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38840 states. [2021-11-05 20:47:13,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38840 to 38840. [2021-11-05 20:47:13,479 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) [2021-11-05 20:47:13,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38840 states to 38840 states and 48733 transitions. [2021-11-05 20:47:13,541 INFO L78 Accepts]: Start accepts. Automaton has 38840 states and 48733 transitions. Word has length 86 [2021-11-05 20:47:13,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:47:13,541 INFO L470 AbstractCegarLoop]: Abstraction has 38840 states and 48733 transitions. [2021-11-05 20:47:13,542 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) [2021-11-05 20:47:13,542 INFO L276 IsEmpty]: Start isEmpty. Operand 38840 states and 48733 transitions. [2021-11-05 20:47:13,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-05 20:47:13,544 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:47:13,544 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] [2021-11-05 20:47:13,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-05 20:47:13,544 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)] === [2021-11-05 20:47:13,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:47:13,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1488294808, now seen corresponding path program 1 times [2021-11-05 20:47:13,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:47:13,545 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485403410] [2021-11-05 20:47:13,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:47:13,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:47:13,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:47:13,644 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:47:13,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:47:13,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485403410] [2021-11-05 20:47:13,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485403410] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:47:13,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:47:13,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:47:13,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077994468] [2021-11-05 20:47:13,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:47:13,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:47:13,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:47:13,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:47:13,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:47:13,647 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) [2021-11-05 20:47:14,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:47:14,789 INFO L93 Difference]: Finished difference Result 38840 states and 48733 transitions. [2021-11-05 20:47:14,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:47:14,789 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 [2021-11-05 20:47:14,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:47:14,854 INFO L225 Difference]: With dead ends: 38840 [2021-11-05 20:47:14,855 INFO L226 Difference]: Without dead ends: 38834 [2021-11-05 20:47:14,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.82ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:47:14,873 INFO L933 BasicCegarLoop]: 4880 mSDtfsCounter, 4810 mSDsluCounter, 4808 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4810 SdHoareTripleChecker+Valid, 9688 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.07ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.97ms IncrementalHoareTripleChecker+Time [2021-11-05 20:47:14,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4810 Valid, 9688 Invalid, 85 Unknown, 0 Unchecked, 10.07ms Time], IncrementalHoareTripleChecker [37 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 62.97ms Time] [2021-11-05 20:47:14,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38834 states. [2021-11-05 20:47:16,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38834 to 38834. [2021-11-05 20:47:16,187 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) [2021-11-05 20:47:16,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38834 states to 38834 states and 48727 transitions. [2021-11-05 20:47:16,253 INFO L78 Accepts]: Start accepts. Automaton has 38834 states and 48727 transitions. Word has length 88 [2021-11-05 20:47:16,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:47:16,253 INFO L470 AbstractCegarLoop]: Abstraction has 38834 states and 48727 transitions. [2021-11-05 20:47:16,253 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) [2021-11-05 20:47:16,254 INFO L276 IsEmpty]: Start isEmpty. Operand 38834 states and 48727 transitions. [2021-11-05 20:47:16,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-05 20:47:16,256 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:47:16,256 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] [2021-11-05 20:47:16,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-05 20:47:16,256 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)] === [2021-11-05 20:47:16,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:47:16,257 INFO L85 PathProgramCache]: Analyzing trace with hash 2057427073, now seen corresponding path program 1 times [2021-11-05 20:47:16,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:47:16,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602325964] [2021-11-05 20:47:16,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:47:16,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:47:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:47:16,347 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:47:16,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:47:16,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602325964] [2021-11-05 20:47:16,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602325964] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:47:16,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:47:16,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:47:16,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332999570] [2021-11-05 20:47:16,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:47:16,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:47:16,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:47:16,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:47:16,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:47:16,351 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) [2021-11-05 20:47:18,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:47:18,302 INFO L93 Difference]: Finished difference Result 86619 states and 109040 transitions. [2021-11-05 20:47:18,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:47:18,303 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 [2021-11-05 20:47:18,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:47:18,383 INFO L225 Difference]: With dead ends: 86619 [2021-11-05 20:47:18,383 INFO L226 Difference]: Without dead ends: 47916 [2021-11-05 20:47:18,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.25ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:47:18,429 INFO L933 BasicCegarLoop]: 6916 mSDtfsCounter, 2044 mSDsluCounter, 4809 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 443.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2044 SdHoareTripleChecker+Valid, 11725 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.47ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 490.31ms IncrementalHoareTripleChecker+Time [2021-11-05 20:47:18,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2044 Valid, 11725 Invalid, 98 Unknown, 0 Unchecked, 8.47ms Time], IncrementalHoareTripleChecker [15 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 490.31ms Time] [2021-11-05 20:47:18,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47916 states.