./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --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 32bit --witnessprinter.graph.data.programhash fe4506e3d5e012e1662dc0aa7741c8e3f8f99dc7c5ccf1f202c2f95071bfbf64 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:23:04,589 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:23:04,689 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:23:04,701 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:23:04,702 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:23:04,740 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:23:04,740 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:23:04,741 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:23:04,741 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:23:04,741 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:23:04,741 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:23:04,741 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:23:04,742 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:23:04,742 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:23:04,742 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:23:04,742 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:23:04,742 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:23:04,742 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:23:04,743 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:23:04,743 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:23:04,743 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:23:04,743 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:23:04,743 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:23:04,743 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:23:04,743 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:23:04,743 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:23:04,744 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:23:04,744 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:23:04,744 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:23:04,744 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:23:04,744 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:23:04,744 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:23:04,744 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:23:04,745 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:23:04,745 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:23:04,745 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:23:04,745 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:23:04,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:23:04,745 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:23:04,746 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:23:04,746 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:23:04,746 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:23:04,746 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:23:04,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:23:04,746 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:23:04,746 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:23:04,746 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:23:04,747 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:23:04,747 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe4506e3d5e012e1662dc0aa7741c8e3f8f99dc7c5ccf1f202c2f95071bfbf64 [2024-11-24 01:23:05,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:23:05,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:23:05,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:23:05,136 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:23:05,136 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:23:05,138 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/email_spec27_productSimulator.cil.c [2024-11-24 01:23:08,503 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/data/7b1a845e1/8e39e6a1caa144db81b73d890f07e6f7/FLAGb3b0156e8 [2024-11-24 01:23:08,944 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:23:08,945 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/sv-benchmarks/c/product-lines/email_spec27_productSimulator.cil.c [2024-11-24 01:23:08,970 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/data/7b1a845e1/8e39e6a1caa144db81b73d890f07e6f7/FLAGb3b0156e8 [2024-11-24 01:23:08,991 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/data/7b1a845e1/8e39e6a1caa144db81b73d890f07e6f7 [2024-11-24 01:23:08,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:23:08,997 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:23:08,998 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:23:09,000 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:23:09,006 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:23:09,007 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:23:08" (1/1) ... [2024-11-24 01:23:09,009 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59a3cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:09, skipping insertion in model container [2024-11-24 01:23:09,009 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:23:08" (1/1) ... [2024-11-24 01:23:09,093 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:23:09,498 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/sv-benchmarks/c/product-lines/email_spec27_productSimulator.cil.c[11237,11250] [2024-11-24 01:23:10,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:23:10,103 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:23:10,113 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-11-24 01:23:10,115 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [414] [2024-11-24 01:23:10,115 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [423] [2024-11-24 01:23:10,115 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [441] [2024-11-24 01:23:10,115 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [561] [2024-11-24 01:23:10,116 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1641] [2024-11-24 01:23:10,116 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [1918] [2024-11-24 01:23:10,116 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1952] [2024-11-24 01:23:10,116 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2362] [2024-11-24 01:23:10,116 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2922] [2024-11-24 01:23:10,117 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [3271] [2024-11-24 01:23:10,177 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/sv-benchmarks/c/product-lines/email_spec27_productSimulator.cil.c[11237,11250] [2024-11-24 01:23:10,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:23:10,384 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:23:10,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:10 WrapperNode [2024-11-24 01:23:10,386 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:23:10,387 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:23:10,387 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:23:10,387 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:23:10,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:10" (1/1) ... [2024-11-24 01:23:10,446 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:10" (1/1) ... [2024-11-24 01:23:10,545 INFO L138 Inliner]: procedures = 151, calls = 264, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1308 [2024-11-24 01:23:10,547 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:23:10,549 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:23:10,549 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:23:10,549 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:23:10,559 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:10" (1/1) ... [2024-11-24 01:23:10,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:10" (1/1) ... [2024-11-24 01:23:10,567 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:10" (1/1) ... [2024-11-24 01:23:10,620 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-24 01:23:10,624 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:10" (1/1) ... [2024-11-24 01:23:10,624 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:10" (1/1) ... [2024-11-24 01:23:10,668 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:10" (1/1) ... [2024-11-24 01:23:10,671 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:10" (1/1) ... [2024-11-24 01:23:10,682 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:10" (1/1) ... [2024-11-24 01:23:10,688 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:10" (1/1) ... [2024-11-24 01:23:10,693 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:10" (1/1) ... [2024-11-24 01:23:10,712 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:23:10,718 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:23:10,718 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:23:10,719 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:23:10,720 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:10" (1/1) ... [2024-11-24 01:23:10,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:23:10,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:10,760 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:23:10,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:23:10,797 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-24 01:23:10,799 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-24 01:23:10,800 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2024-11-24 01:23:10,800 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2024-11-24 01:23:10,800 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2024-11-24 01:23:10,801 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2024-11-24 01:23:10,801 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-24 01:23:10,802 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-24 01:23:10,802 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-24 01:23:10,802 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-24 01:23:10,802 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-24 01:23:10,802 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-24 01:23:10,803 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-24 01:23:10,805 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-24 01:23:10,805 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2024-11-24 01:23:10,805 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2024-11-24 01:23:10,805 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-24 01:23:10,805 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-24 01:23:10,805 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2024-11-24 01:23:10,806 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2024-11-24 01:23:10,806 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-24 01:23:10,806 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-24 01:23:10,806 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-24 01:23:10,806 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-24 01:23:10,806 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-24 01:23:10,806 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-24 01:23:10,806 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2024-11-24 01:23:10,807 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2024-11-24 01:23:10,807 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2024-11-24 01:23:10,807 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2024-11-24 01:23:10,807 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-24 01:23:10,807 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-24 01:23:10,807 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-24 01:23:10,807 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-24 01:23:10,807 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-24 01:23:10,807 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-24 01:23:10,808 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2024-11-24 01:23:10,809 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2024-11-24 01:23:10,809 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-24 01:23:10,809 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-24 01:23:10,809 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-24 01:23:10,810 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-24 01:23:10,810 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-24 01:23:10,810 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-24 01:23:10,810 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2024-11-24 01:23:10,810 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2024-11-24 01:23:10,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:23:10,810 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-24 01:23:10,810 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-24 01:23:10,812 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-24 01:23:10,813 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-24 01:23:10,813 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2024-11-24 01:23:10,813 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2024-11-24 01:23:10,813 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2024-11-24 01:23:10,813 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2024-11-24 01:23:10,813 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2024-11-24 01:23:10,813 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2024-11-24 01:23:10,813 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-24 01:23:10,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-24 01:23:10,814 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-24 01:23:10,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-24 01:23:10,814 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-24 01:23:10,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-24 01:23:10,814 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-24 01:23:10,814 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-24 01:23:10,814 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2024-11-24 01:23:10,814 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2024-11-24 01:23:10,814 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-24 01:23:10,814 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-24 01:23:10,814 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-24 01:23:10,814 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-24 01:23:10,814 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-24 01:23:10,814 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-24 01:23:10,814 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2024-11-24 01:23:10,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2024-11-24 01:23:10,814 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2024-11-24 01:23:10,814 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2024-11-24 01:23:10,815 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-24 01:23:10,815 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-24 01:23:10,815 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-24 01:23:10,815 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-24 01:23:10,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:23:10,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 01:23:10,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 01:23:10,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 01:23:10,818 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-24 01:23:10,818 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-24 01:23:10,819 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2024-11-24 01:23:10,819 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2024-11-24 01:23:10,819 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2024-11-24 01:23:10,819 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2024-11-24 01:23:10,819 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-24 01:23:10,819 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-24 01:23:10,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:23:10,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:23:11,160 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:23:11,166 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:23:13,326 INFO L? ?]: Removed 625 outVars from TransFormulas that were not future-live. [2024-11-24 01:23:13,327 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:23:13,370 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:23:13,370 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:23:13,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:23:13 BoogieIcfgContainer [2024-11-24 01:23:13,375 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:23:13,377 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:23:13,377 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:23:13,382 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:23:13,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:23:08" (1/3) ... [2024-11-24 01:23:13,383 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69de121f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:23:13, skipping insertion in model container [2024-11-24 01:23:13,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:10" (2/3) ... [2024-11-24 01:23:13,383 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69de121f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:23:13, skipping insertion in model container [2024-11-24 01:23:13,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:23:13" (3/3) ... [2024-11-24 01:23:13,385 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec27_productSimulator.cil.c [2024-11-24 01:23:13,402 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:23:13,407 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec27_productSimulator.cil.c that has 45 procedures, 607 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:23:13,532 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:23:13,552 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@40a2d9f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:23:13,553 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:23:13,560 INFO L276 IsEmpty]: Start isEmpty. Operand has 607 states, 449 states have (on average 1.5144766146993318) internal successors, (680), 469 states have internal predecessors, (680), 112 states have call successors, (112), 44 states have call predecessors, (112), 44 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-24 01:23:13,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-24 01:23:13,593 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:13,594 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:13,594 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:13,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:13,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1365849949, now seen corresponding path program 1 times [2024-11-24 01:23:13,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:13,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178760911] [2024-11-24 01:23:13,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:13,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:13,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:14,260 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-24 01:23:14,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:14,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178760911] [2024-11-24 01:23:14,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178760911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:14,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:14,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:23:14,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907234346] [2024-11-24 01:23:14,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:14,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:23:14,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:14,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:23:14,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:23:14,297 INFO L87 Difference]: Start difference. First operand has 607 states, 449 states have (on average 1.5144766146993318) internal successors, (680), 469 states have internal predecessors, (680), 112 states have call successors, (112), 44 states have call predecessors, (112), 44 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) Second operand has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 01:23:14,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:14,414 INFO L93 Difference]: Finished difference Result 946 states and 1396 transitions. [2024-11-24 01:23:14,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:23:14,423 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 158 [2024-11-24 01:23:14,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:14,448 INFO L225 Difference]: With dead ends: 946 [2024-11-24 01:23:14,448 INFO L226 Difference]: Without dead ends: 600 [2024-11-24 01:23:14,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:23:14,464 INFO L435 NwaCegarLoop]: 900 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:14,465 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:14,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-11-24 01:23:14,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2024-11-24 01:23:14,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 443 states have (on average 1.510158013544018) internal successors, (669), 462 states have internal predecessors, (669), 112 states have call successors, (112), 44 states have call predecessors, (112), 44 states have return successors, (111), 110 states have call predecessors, (111), 111 states have call successors, (111) [2024-11-24 01:23:14,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 892 transitions. [2024-11-24 01:23:14,582 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 892 transitions. Word has length 158 [2024-11-24 01:23:14,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:14,584 INFO L471 AbstractCegarLoop]: Abstraction has 600 states and 892 transitions. [2024-11-24 01:23:14,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 01:23:14,585 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 892 transitions. [2024-11-24 01:23:14,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-24 01:23:14,594 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:14,595 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:14,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:23:14,595 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:14,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:14,596 INFO L85 PathProgramCache]: Analyzing trace with hash -2021771293, now seen corresponding path program 1 times [2024-11-24 01:23:14,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:14,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174373757] [2024-11-24 01:23:14,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:14,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:15,327 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-24 01:23:15,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:15,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174373757] [2024-11-24 01:23:15,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174373757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:15,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:15,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:23:15,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732582586] [2024-11-24 01:23:15,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:15,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:23:15,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:15,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:23:15,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:23:15,331 INFO L87 Difference]: Start difference. First operand 600 states and 892 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 01:23:15,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:15,520 INFO L93 Difference]: Finished difference Result 1164 states and 1728 transitions. [2024-11-24 01:23:15,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:23:15,521 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 158 [2024-11-24 01:23:15,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:15,531 INFO L225 Difference]: With dead ends: 1164 [2024-11-24 01:23:15,534 INFO L226 Difference]: Without dead ends: 600 [2024-11-24 01:23:15,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:23:15,539 INFO L435 NwaCegarLoop]: 890 mSDtfsCounter, 0 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3548 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:15,541 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3548 Invalid, 19 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:15,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-11-24 01:23:15,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2024-11-24 01:23:15,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 443 states have (on average 1.4943566591422122) internal successors, (662), 462 states have internal predecessors, (662), 112 states have call successors, (112), 44 states have call predecessors, (112), 44 states have return successors, (111), 110 states have call predecessors, (111), 111 states have call successors, (111) [2024-11-24 01:23:15,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 885 transitions. [2024-11-24 01:23:15,596 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 885 transitions. Word has length 158 [2024-11-24 01:23:15,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:15,597 INFO L471 AbstractCegarLoop]: Abstraction has 600 states and 885 transitions. [2024-11-24 01:23:15,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 01:23:15,597 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 885 transitions. [2024-11-24 01:23:15,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-24 01:23:15,605 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:15,605 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:15,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:23:15,605 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:15,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:15,610 INFO L85 PathProgramCache]: Analyzing trace with hash -983170391, now seen corresponding path program 1 times [2024-11-24 01:23:15,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:15,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992743734] [2024-11-24 01:23:15,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:15,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:15,933 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-24 01:23:15,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:15,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992743734] [2024-11-24 01:23:15,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992743734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:15,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:15,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:23:15,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478286087] [2024-11-24 01:23:15,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:15,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:23:15,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:15,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:23:15,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:15,939 INFO L87 Difference]: Start difference. First operand 600 states and 885 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-24 01:23:16,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:16,031 INFO L93 Difference]: Finished difference Result 1168 states and 1736 transitions. [2024-11-24 01:23:16,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:23:16,033 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), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 163 [2024-11-24 01:23:16,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:16,038 INFO L225 Difference]: With dead ends: 1168 [2024-11-24 01:23:16,039 INFO L226 Difference]: Without dead ends: 601 [2024-11-24 01:23:16,041 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:16,042 INFO L435 NwaCegarLoop]: 876 mSDtfsCounter, 847 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:16,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 900 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:16,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2024-11-24 01:23:16,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2024-11-24 01:23:16,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 445 states have (on average 1.4853932584269662) internal successors, (661), 462 states have internal predecessors, (661), 110 states have call successors, (110), 45 states have call predecessors, (110), 45 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) [2024-11-24 01:23:16,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 880 transitions. [2024-11-24 01:23:16,126 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 880 transitions. Word has length 163 [2024-11-24 01:23:16,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:16,126 INFO L471 AbstractCegarLoop]: Abstraction has 601 states and 880 transitions. [2024-11-24 01:23:16,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-24 01:23:16,127 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 880 transitions. [2024-11-24 01:23:16,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-24 01:23:16,134 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:16,134 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:16,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:23:16,134 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:16,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:16,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1302918377, now seen corresponding path program 1 times [2024-11-24 01:23:16,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:16,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122254990] [2024-11-24 01:23:16,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:16,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:16,348 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-24 01:23:16,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:16,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122254990] [2024-11-24 01:23:16,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122254990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:16,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:16,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:23:16,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731347403] [2024-11-24 01:23:16,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:16,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:23:16,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:16,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:23:16,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:16,353 INFO L87 Difference]: Start difference. First operand 601 states and 880 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-24 01:23:16,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:16,513 INFO L93 Difference]: Finished difference Result 1715 states and 2547 transitions. [2024-11-24 01:23:16,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:23:16,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 184 [2024-11-24 01:23:16,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:16,548 INFO L225 Difference]: With dead ends: 1715 [2024-11-24 01:23:16,548 INFO L226 Difference]: Without dead ends: 1148 [2024-11-24 01:23:16,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:16,552 INFO L435 NwaCegarLoop]: 897 mSDtfsCounter, 834 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 1741 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:16,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 1741 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:16,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2024-11-24 01:23:16,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 1146. [2024-11-24 01:23:16,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 851 states have (on average 1.4923619271445359) internal successors, (1270), 881 states have internal predecessors, (1270), 205 states have call successors, (205), 89 states have call predecessors, (205), 89 states have return successors, (216), 202 states have call predecessors, (216), 203 states have call successors, (216) [2024-11-24 01:23:16,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1691 transitions. [2024-11-24 01:23:16,701 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1691 transitions. Word has length 184 [2024-11-24 01:23:16,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:16,702 INFO L471 AbstractCegarLoop]: Abstraction has 1146 states and 1691 transitions. [2024-11-24 01:23:16,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-24 01:23:16,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1691 transitions. [2024-11-24 01:23:16,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-24 01:23:16,712 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:16,712 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:16,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:23:16,712 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:16,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:16,713 INFO L85 PathProgramCache]: Analyzing trace with hash -296978933, now seen corresponding path program 1 times [2024-11-24 01:23:16,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:16,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805684234] [2024-11-24 01:23:16,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:16,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:16,913 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-24 01:23:16,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:16,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805684234] [2024-11-24 01:23:16,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805684234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:16,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:16,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:23:16,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733109231] [2024-11-24 01:23:16,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:16,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:23:16,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:16,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:23:16,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:16,917 INFO L87 Difference]: Start difference. First operand 1146 states and 1691 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:17,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:17,016 INFO L93 Difference]: Finished difference Result 1148 states and 1692 transitions. [2024-11-24 01:23:17,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:23:17,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 178 [2024-11-24 01:23:17,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:17,025 INFO L225 Difference]: With dead ends: 1148 [2024-11-24 01:23:17,026 INFO L226 Difference]: Without dead ends: 602 [2024-11-24 01:23:17,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:17,029 INFO L435 NwaCegarLoop]: 866 mSDtfsCounter, 827 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:17,031 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 903 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:17,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2024-11-24 01:23:17,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2024-11-24 01:23:17,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 447 states have (on average 1.4742729306487696) internal successors, (659), 462 states have internal predecessors, (659), 108 states have call successors, (108), 46 states have call predecessors, (108), 46 states have return successors, (107), 106 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-24 01:23:17,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 874 transitions. [2024-11-24 01:23:17,084 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 874 transitions. Word has length 178 [2024-11-24 01:23:17,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:17,085 INFO L471 AbstractCegarLoop]: Abstraction has 602 states and 874 transitions. [2024-11-24 01:23:17,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:17,085 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 874 transitions. [2024-11-24 01:23:17,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-24 01:23:17,089 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:17,090 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:17,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:23:17,090 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:17,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:17,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1367261116, now seen corresponding path program 1 times [2024-11-24 01:23:17,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:17,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584444806] [2024-11-24 01:23:17,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:17,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:17,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:17,276 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-24 01:23:17,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:17,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584444806] [2024-11-24 01:23:17,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584444806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:17,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:17,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:23:17,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851643429] [2024-11-24 01:23:17,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:17,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:23:17,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:17,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:23:17,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:17,279 INFO L87 Difference]: Start difference. First operand 602 states and 874 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-24 01:23:17,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:17,432 INFO L93 Difference]: Finished difference Result 1158 states and 1688 transitions. [2024-11-24 01:23:17,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:23:17,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 194 [2024-11-24 01:23:17,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:17,440 INFO L225 Difference]: With dead ends: 1158 [2024-11-24 01:23:17,441 INFO L226 Difference]: Without dead ends: 605 [2024-11-24 01:23:17,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:17,445 INFO L435 NwaCegarLoop]: 847 mSDtfsCounter, 809 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:17,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 888 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:23:17,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-24 01:23:17,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 599. [2024-11-24 01:23:17,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 447 states have (on average 1.4496644295302012) internal successors, (648), 457 states have internal predecessors, (648), 105 states have call successors, (105), 46 states have call predecessors, (105), 46 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-24 01:23:17,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 857 transitions. [2024-11-24 01:23:17,514 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 857 transitions. Word has length 194 [2024-11-24 01:23:17,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:17,515 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 857 transitions. [2024-11-24 01:23:17,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-24 01:23:17,516 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 857 transitions. [2024-11-24 01:23:17,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-24 01:23:17,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:17,522 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:17,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:23:17,523 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:17,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:17,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1811251292, now seen corresponding path program 1 times [2024-11-24 01:23:17,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:17,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128322180] [2024-11-24 01:23:17,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:17,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:18,226 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-24 01:23:18,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:18,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128322180] [2024-11-24 01:23:18,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128322180] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:18,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872363725] [2024-11-24 01:23:18,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:18,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:18,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:18,238 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:18,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:23:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:18,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 1580 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 01:23:18,868 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:18,941 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-24 01:23:18,945 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:23:18,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872363725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:18,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:23:18,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-24 01:23:18,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958072348] [2024-11-24 01:23:18,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:18,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:23:18,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:18,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:23:18,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:23:18,947 INFO L87 Difference]: Start difference. First operand 599 states and 857 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 01:23:19,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:19,062 INFO L93 Difference]: Finished difference Result 930 states and 1313 transitions. [2024-11-24 01:23:19,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:23:19,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 205 [2024-11-24 01:23:19,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:19,070 INFO L225 Difference]: With dead ends: 930 [2024-11-24 01:23:19,071 INFO L226 Difference]: Without dead ends: 601 [2024-11-24 01:23:19,072 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:23:19,073 INFO L435 NwaCegarLoop]: 851 mSDtfsCounter, 1 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:19,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1700 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:19,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2024-11-24 01:23:19,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 600. [2024-11-24 01:23:19,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 448 states have (on average 1.4486607142857142) internal successors, (649), 458 states have internal predecessors, (649), 105 states have call successors, (105), 46 states have call predecessors, (105), 46 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-24 01:23:19,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 858 transitions. [2024-11-24 01:23:19,138 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 858 transitions. Word has length 205 [2024-11-24 01:23:19,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:19,140 INFO L471 AbstractCegarLoop]: Abstraction has 600 states and 858 transitions. [2024-11-24 01:23:19,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 01:23:19,140 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 858 transitions. [2024-11-24 01:23:19,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-24 01:23:19,145 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:19,146 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:19,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 01:23:19,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:19,350 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:19,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:19,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1563272058, now seen corresponding path program 1 times [2024-11-24 01:23:19,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:19,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217866837] [2024-11-24 01:23:19,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:19,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:19,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:20,009 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-24 01:23:20,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:20,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217866837] [2024-11-24 01:23:20,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217866837] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:20,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167807930] [2024-11-24 01:23:20,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:20,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:20,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:20,013 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:20,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:23:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:20,701 INFO L256 TraceCheckSpWp]: Trace formula consists of 1630 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:23:20,717 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:20,814 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-24 01:23:20,818 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:23:20,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167807930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:20,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:23:20,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-24 01:23:20,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434621716] [2024-11-24 01:23:20,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:20,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:23:20,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:20,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:23:20,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:23:20,821 INFO L87 Difference]: Start difference. First operand 600 states and 858 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-24 01:23:20,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:20,929 INFO L93 Difference]: Finished difference Result 1217 states and 1775 transitions. [2024-11-24 01:23:20,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:23:20,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 219 [2024-11-24 01:23:20,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:20,937 INFO L225 Difference]: With dead ends: 1217 [2024-11-24 01:23:20,938 INFO L226 Difference]: Without dead ends: 697 [2024-11-24 01:23:20,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:23:20,941 INFO L435 NwaCegarLoop]: 867 mSDtfsCounter, 165 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:20,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1671 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:20,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2024-11-24 01:23:21,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 689. [2024-11-24 01:23:21,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 523 states have (on average 1.4646271510516253) internal successors, (766), 533 states have internal predecessors, (766), 119 states have call successors, (119), 46 states have call predecessors, (119), 46 states have return successors, (118), 117 states have call predecessors, (118), 118 states have call successors, (118) [2024-11-24 01:23:21,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1003 transitions. [2024-11-24 01:23:21,039 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1003 transitions. Word has length 219 [2024-11-24 01:23:21,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:21,040 INFO L471 AbstractCegarLoop]: Abstraction has 689 states and 1003 transitions. [2024-11-24 01:23:21,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-24 01:23:21,041 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1003 transitions. [2024-11-24 01:23:21,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-24 01:23:21,050 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:21,051 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:21,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 01:23:21,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:21,252 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:21,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:21,253 INFO L85 PathProgramCache]: Analyzing trace with hash -810602186, now seen corresponding path program 1 times [2024-11-24 01:23:21,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:21,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762634704] [2024-11-24 01:23:21,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:21,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:21,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:21,800 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-24 01:23:21,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:21,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762634704] [2024-11-24 01:23:21,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762634704] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:21,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848528052] [2024-11-24 01:23:21,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:21,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:21,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:21,809 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:21,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:23:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:22,434 INFO L256 TraceCheckSpWp]: Trace formula consists of 1598 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-24 01:23:22,443 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:22,631 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-24 01:23:22,631 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:23:22,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848528052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:22,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:23:22,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-11-24 01:23:22,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794557851] [2024-11-24 01:23:22,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:22,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:23:22,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:22,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:23:22,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:23:22,638 INFO L87 Difference]: Start difference. First operand 689 states and 1003 transitions. Second operand has 8 states, 6 states have (on average 21.666666666666668) internal successors, (130), 8 states have internal predecessors, (130), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-24 01:23:22,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:22,909 INFO L93 Difference]: Finished difference Result 1322 states and 1941 transitions. [2024-11-24 01:23:22,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:23:22,910 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 21.666666666666668) internal successors, (130), 8 states have internal predecessors, (130), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) Word has length 213 [2024-11-24 01:23:22,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:22,920 INFO L225 Difference]: With dead ends: 1322 [2024-11-24 01:23:22,921 INFO L226 Difference]: Without dead ends: 691 [2024-11-24 01:23:22,923 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:23:22,925 INFO L435 NwaCegarLoop]: 842 mSDtfsCounter, 4 mSDsluCounter, 5035 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5877 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:22,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5877 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:23:22,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2024-11-24 01:23:22,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2024-11-24 01:23:22,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 524 states have (on average 1.463740458015267) internal successors, (767), 535 states have internal predecessors, (767), 119 states have call successors, (119), 46 states have call predecessors, (119), 47 states have return successors, (120), 117 states have call predecessors, (120), 118 states have call successors, (120) [2024-11-24 01:23:22,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 1006 transitions. [2024-11-24 01:23:23,000 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 1006 transitions. Word has length 213 [2024-11-24 01:23:23,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:23,001 INFO L471 AbstractCegarLoop]: Abstraction has 691 states and 1006 transitions. [2024-11-24 01:23:23,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 21.666666666666668) internal successors, (130), 8 states have internal predecessors, (130), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-24 01:23:23,002 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 1006 transitions. [2024-11-24 01:23:23,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-24 01:23:23,009 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:23,009 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:23,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 01:23:23,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:23,213 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:23,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:23,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1234707601, now seen corresponding path program 1 times [2024-11-24 01:23:23,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:23,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174817500] [2024-11-24 01:23:23,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:23,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:23,599 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-24 01:23:23,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:23,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174817500] [2024-11-24 01:23:23,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174817500] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:23,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178425978] [2024-11-24 01:23:23,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:23,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:23,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:23,604 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:23,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:23:24,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:24,278 INFO L256 TraceCheckSpWp]: Trace formula consists of 1606 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:23:24,289 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:24,482 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-24 01:23:24,482 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:23:24,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178425978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:24,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:23:24,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-24 01:23:24,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837605259] [2024-11-24 01:23:24,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:24,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:23:24,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:24,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:23:24,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:23:24,485 INFO L87 Difference]: Start difference. First operand 691 states and 1006 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-24 01:23:24,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:24,630 INFO L93 Difference]: Finished difference Result 1888 states and 2814 transitions. [2024-11-24 01:23:24,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:23:24,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 214 [2024-11-24 01:23:24,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:24,641 INFO L225 Difference]: With dead ends: 1888 [2024-11-24 01:23:24,642 INFO L226 Difference]: Without dead ends: 1279 [2024-11-24 01:23:24,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:23:24,645 INFO L435 NwaCegarLoop]: 1148 mSDtfsCounter, 690 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 1980 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:24,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 1980 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:24,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2024-11-24 01:23:24,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 1277. [2024-11-24 01:23:24,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1277 states, 973 states have (on average 1.4799588900308325) internal successors, (1440), 992 states have internal predecessors, (1440), 216 states have call successors, (216), 86 states have call predecessors, (216), 87 states have return successors, (230), 212 states have call predecessors, (230), 214 states have call successors, (230) [2024-11-24 01:23:24,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 1886 transitions. [2024-11-24 01:23:24,764 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 1886 transitions. Word has length 214 [2024-11-24 01:23:24,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:24,765 INFO L471 AbstractCegarLoop]: Abstraction has 1277 states and 1886 transitions. [2024-11-24 01:23:24,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-24 01:23:24,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 1886 transitions. [2024-11-24 01:23:24,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-24 01:23:24,797 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:24,797 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:24,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 01:23:24,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-24 01:23:24,998 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:24,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:24,999 INFO L85 PathProgramCache]: Analyzing trace with hash 618564745, now seen corresponding path program 1 times [2024-11-24 01:23:25,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:25,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974297054] [2024-11-24 01:23:25,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:25,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:25,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:25,316 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-24 01:23:25,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:25,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974297054] [2024-11-24 01:23:25,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974297054] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:25,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192215467] [2024-11-24 01:23:25,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:25,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:25,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:25,319 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:25,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 01:23:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:25,942 INFO L256 TraceCheckSpWp]: Trace formula consists of 1599 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 01:23:25,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:26,066 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-24 01:23:26,066 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:23:26,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192215467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:26,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:23:26,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-11-24 01:23:26,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811709930] [2024-11-24 01:23:26,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:26,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:23:26,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:26,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:23:26,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:23:26,070 INFO L87 Difference]: Start difference. First operand 1277 states and 1886 transitions. Second operand has 6 states, 5 states have (on average 26.4) internal successors, (132), 6 states have internal predecessors, (132), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-24 01:23:26,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:26,323 INFO L93 Difference]: Finished difference Result 2494 states and 3707 transitions. [2024-11-24 01:23:26,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:23:26,324 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 26.4) internal successors, (132), 6 states have internal predecessors, (132), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 214 [2024-11-24 01:23:26,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:26,337 INFO L225 Difference]: With dead ends: 2494 [2024-11-24 01:23:26,337 INFO L226 Difference]: Without dead ends: 1281 [2024-11-24 01:23:26,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:23:26,344 INFO L435 NwaCegarLoop]: 842 mSDtfsCounter, 2 mSDsluCounter, 3351 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4193 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:26,345 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4193 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:23:26,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2024-11-24 01:23:26,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1279. [2024-11-24 01:23:26,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 974 states have (on average 1.4794661190965093) internal successors, (1441), 994 states have internal predecessors, (1441), 216 states have call successors, (216), 86 states have call predecessors, (216), 88 states have return successors, (235), 212 states have call predecessors, (235), 214 states have call successors, (235) [2024-11-24 01:23:26,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 1892 transitions. [2024-11-24 01:23:26,446 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 1892 transitions. Word has length 214 [2024-11-24 01:23:26,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:26,446 INFO L471 AbstractCegarLoop]: Abstraction has 1279 states and 1892 transitions. [2024-11-24 01:23:26,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 26.4) internal successors, (132), 6 states have internal predecessors, (132), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-24 01:23:26,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 1892 transitions. [2024-11-24 01:23:26,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-24 01:23:26,455 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:26,455 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:26,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-24 01:23:26,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-24 01:23:26,656 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:26,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:26,657 INFO L85 PathProgramCache]: Analyzing trace with hash -452037237, now seen corresponding path program 1 times [2024-11-24 01:23:26,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:26,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966489004] [2024-11-24 01:23:26,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:26,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:26,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:27,159 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-24 01:23:27,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:27,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966489004] [2024-11-24 01:23:27,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966489004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:27,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:27,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:23:27,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289641264] [2024-11-24 01:23:27,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:27,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:23:27,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:27,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:23:27,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:23:27,163 INFO L87 Difference]: Start difference. First operand 1279 states and 1892 transitions. Second operand has 8 states, 6 states have (on average 21.666666666666668) internal successors, (130), 8 states have internal predecessors, (130), 4 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-24 01:23:27,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:27,371 INFO L93 Difference]: Finished difference Result 2480 states and 3690 transitions. [2024-11-24 01:23:27,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:23:27,372 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 21.666666666666668) internal successors, (130), 8 states have internal predecessors, (130), 4 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 222 [2024-11-24 01:23:27,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:27,384 INFO L225 Difference]: With dead ends: 2480 [2024-11-24 01:23:27,384 INFO L226 Difference]: Without dead ends: 1279 [2024-11-24 01:23:27,389 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:23:27,389 INFO L435 NwaCegarLoop]: 843 mSDtfsCounter, 4 mSDsluCounter, 5041 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5884 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:27,390 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5884 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:23:27,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2024-11-24 01:23:27,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 1279. [2024-11-24 01:23:27,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 974 states have (on average 1.4794661190965093) internal successors, (1441), 994 states have internal predecessors, (1441), 216 states have call successors, (216), 86 states have call predecessors, (216), 88 states have return successors, (234), 212 states have call predecessors, (234), 214 states have call successors, (234) [2024-11-24 01:23:27,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 1891 transitions. [2024-11-24 01:23:27,537 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 1891 transitions. Word has length 222 [2024-11-24 01:23:27,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:27,538 INFO L471 AbstractCegarLoop]: Abstraction has 1279 states and 1891 transitions. [2024-11-24 01:23:27,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 21.666666666666668) internal successors, (130), 8 states have internal predecessors, (130), 4 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-24 01:23:27,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 1891 transitions. [2024-11-24 01:23:27,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-24 01:23:27,547 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:27,547 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:27,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:23:27,548 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:27,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:27,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1387296526, now seen corresponding path program 2 times [2024-11-24 01:23:27,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:27,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322129556] [2024-11-24 01:23:27,549 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:23:27,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:27,596 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:23:27,596 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:23:27,652 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-24 01:23:27,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:27,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322129556] [2024-11-24 01:23:27,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322129556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:27,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:27,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:23:27,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68177655] [2024-11-24 01:23:27,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:27,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:23:27,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:27,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:23:27,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:27,656 INFO L87 Difference]: Start difference. First operand 1279 states and 1891 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-11-24 01:23:27,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:27,796 INFO L93 Difference]: Finished difference Result 2708 states and 4074 transitions. [2024-11-24 01:23:27,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:23:27,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 223 [2024-11-24 01:23:27,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:27,816 INFO L225 Difference]: With dead ends: 2708 [2024-11-24 01:23:27,816 INFO L226 Difference]: Without dead ends: 2082 [2024-11-24 01:23:27,820 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:27,822 INFO L435 NwaCegarLoop]: 833 mSDtfsCounter, 772 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 1368 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:27,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 1368 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:27,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2024-11-24 01:23:27,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 2082. [2024-11-24 01:23:27,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2082 states, 1632 states have (on average 1.5189950980392157) internal successors, (2479), 1660 states have internal predecessors, (2479), 321 states have call successors, (321), 134 states have call predecessors, (321), 128 states have return successors, (352), 299 states have call predecessors, (352), 319 states have call successors, (352) [2024-11-24 01:23:28,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 3152 transitions. [2024-11-24 01:23:28,005 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 3152 transitions. Word has length 223 [2024-11-24 01:23:28,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:28,006 INFO L471 AbstractCegarLoop]: Abstraction has 2082 states and 3152 transitions. [2024-11-24 01:23:28,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-11-24 01:23:28,007 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 3152 transitions. [2024-11-24 01:23:28,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-24 01:23:28,020 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:28,021 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:28,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:23:28,021 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:28,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:28,022 INFO L85 PathProgramCache]: Analyzing trace with hash 357018467, now seen corresponding path program 1 times [2024-11-24 01:23:28,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:28,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448146956] [2024-11-24 01:23:28,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:28,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:28,400 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-24 01:23:28,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:28,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448146956] [2024-11-24 01:23:28,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448146956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:28,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:28,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:23:28,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619128999] [2024-11-24 01:23:28,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:28,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:23:28,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:28,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:23:28,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:23:28,403 INFO L87 Difference]: Start difference. First operand 2082 states and 3152 transitions. Second operand has 8 states, 6 states have (on average 21.5) internal successors, (129), 8 states have internal predecessors, (129), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-24 01:23:28,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:28,702 INFO L93 Difference]: Finished difference Result 4048 states and 6168 transitions. [2024-11-24 01:23:28,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:23:28,703 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 21.5) internal successors, (129), 8 states have internal predecessors, (129), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) Word has length 216 [2024-11-24 01:23:28,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:28,722 INFO L225 Difference]: With dead ends: 4048 [2024-11-24 01:23:28,722 INFO L226 Difference]: Without dead ends: 2086 [2024-11-24 01:23:28,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:23:28,732 INFO L435 NwaCegarLoop]: 818 mSDtfsCounter, 3 mSDsluCounter, 4890 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5708 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:28,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5708 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:23:28,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2086 states. [2024-11-24 01:23:28,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2086 to 2086. [2024-11-24 01:23:28,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2086 states, 1634 states have (on average 1.518359853121175) internal successors, (2481), 1664 states have internal predecessors, (2481), 321 states have call successors, (321), 134 states have call predecessors, (321), 130 states have return successors, (356), 299 states have call predecessors, (356), 319 states have call successors, (356) [2024-11-24 01:23:28,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2086 states to 2086 states and 3158 transitions. [2024-11-24 01:23:28,963 INFO L78 Accepts]: Start accepts. Automaton has 2086 states and 3158 transitions. Word has length 216 [2024-11-24 01:23:28,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:28,966 INFO L471 AbstractCegarLoop]: Abstraction has 2086 states and 3158 transitions. [2024-11-24 01:23:28,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 21.5) internal successors, (129), 8 states have internal predecessors, (129), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-24 01:23:28,967 INFO L276 IsEmpty]: Start isEmpty. Operand 2086 states and 3158 transitions. [2024-11-24 01:23:28,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-24 01:23:28,984 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:28,984 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:28,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:23:28,984 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:28,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:28,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1277412719, now seen corresponding path program 1 times [2024-11-24 01:23:28,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:28,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149150157] [2024-11-24 01:23:28,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:28,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:29,346 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-24 01:23:29,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:29,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149150157] [2024-11-24 01:23:29,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149150157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:29,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:29,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:23:29,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263989726] [2024-11-24 01:23:29,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:29,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:23:29,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:29,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:23:29,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:23:29,349 INFO L87 Difference]: Start difference. First operand 2086 states and 3158 transitions. Second operand has 8 states, 6 states have (on average 21.666666666666668) internal successors, (130), 8 states have internal predecessors, (130), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-24 01:23:29,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:29,606 INFO L93 Difference]: Finished difference Result 4052 states and 6174 transitions. [2024-11-24 01:23:29,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:23:29,607 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 21.666666666666668) internal successors, (130), 8 states have internal predecessors, (130), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) Word has length 217 [2024-11-24 01:23:29,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:29,624 INFO L225 Difference]: With dead ends: 4052 [2024-11-24 01:23:29,624 INFO L226 Difference]: Without dead ends: 2090 [2024-11-24 01:23:29,633 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:23:29,634 INFO L435 NwaCegarLoop]: 816 mSDtfsCounter, 2 mSDsluCounter, 4879 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5695 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:29,634 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 5695 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:23:29,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states. [2024-11-24 01:23:29,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 2086. [2024-11-24 01:23:29,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2086 states, 1634 states have (on average 1.518359853121175) internal successors, (2481), 1664 states have internal predecessors, (2481), 321 states have call successors, (321), 134 states have call predecessors, (321), 130 states have return successors, (356), 299 states have call predecessors, (356), 319 states have call successors, (356) [2024-11-24 01:23:29,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2086 states to 2086 states and 3158 transitions. [2024-11-24 01:23:29,811 INFO L78 Accepts]: Start accepts. Automaton has 2086 states and 3158 transitions. Word has length 217 [2024-11-24 01:23:29,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:29,811 INFO L471 AbstractCegarLoop]: Abstraction has 2086 states and 3158 transitions. [2024-11-24 01:23:29,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 21.666666666666668) internal successors, (130), 8 states have internal predecessors, (130), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-24 01:23:29,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2086 states and 3158 transitions. [2024-11-24 01:23:29,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-24 01:23:29,834 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:29,834 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:29,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 01:23:29,835 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:29,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:29,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1452087460, now seen corresponding path program 1 times [2024-11-24 01:23:29,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:29,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964023704] [2024-11-24 01:23:29,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:29,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:29,947 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-24 01:23:29,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:29,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964023704] [2024-11-24 01:23:29,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964023704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:29,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:29,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:23:29,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71233541] [2024-11-24 01:23:29,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:29,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:23:29,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:29,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:23:29,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:29,950 INFO L87 Difference]: Start difference. First operand 2086 states and 3158 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 01:23:30,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:30,267 INFO L93 Difference]: Finished difference Result 6067 states and 9378 transitions. [2024-11-24 01:23:30,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:23:30,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 218 [2024-11-24 01:23:30,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:30,300 INFO L225 Difference]: With dead ends: 6067 [2024-11-24 01:23:30,300 INFO L226 Difference]: Without dead ends: 4017 [2024-11-24 01:23:30,309 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:30,310 INFO L435 NwaCegarLoop]: 855 mSDtfsCounter, 773 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:30,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 1652 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:30,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4017 states. [2024-11-24 01:23:30,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4017 to 4015. [2024-11-24 01:23:30,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4015 states, 3167 states have (on average 1.5184717398168615) internal successors, (4809), 3211 states have internal predecessors, (4809), 600 states have call successors, (600), 255 states have call predecessors, (600), 247 states have return successors, (727), 564 states have call predecessors, (727), 596 states have call successors, (727) [2024-11-24 01:23:30,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4015 states to 4015 states and 6136 transitions. [2024-11-24 01:23:30,618 INFO L78 Accepts]: Start accepts. Automaton has 4015 states and 6136 transitions. Word has length 218 [2024-11-24 01:23:30,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:30,619 INFO L471 AbstractCegarLoop]: Abstraction has 4015 states and 6136 transitions. [2024-11-24 01:23:30,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 01:23:30,624 INFO L276 IsEmpty]: Start isEmpty. Operand 4015 states and 6136 transitions. [2024-11-24 01:23:30,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-24 01:23:30,648 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:30,649 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:30,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 01:23:30,649 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:30,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:30,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1073471346, now seen corresponding path program 1 times [2024-11-24 01:23:30,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:30,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795877224] [2024-11-24 01:23:30,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:30,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:30,814 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-24 01:23:30,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:30,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795877224] [2024-11-24 01:23:30,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795877224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:30,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:30,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:23:30,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778367017] [2024-11-24 01:23:30,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:30,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:23:30,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:30,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:23:30,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:30,819 INFO L87 Difference]: Start difference. First operand 4015 states and 6136 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 01:23:31,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:31,057 INFO L93 Difference]: Finished difference Result 5148 states and 7812 transitions. [2024-11-24 01:23:31,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:23:31,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 219 [2024-11-24 01:23:31,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:31,083 INFO L225 Difference]: With dead ends: 5148 [2024-11-24 01:23:31,083 INFO L226 Difference]: Without dead ends: 3212 [2024-11-24 01:23:31,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:31,093 INFO L435 NwaCegarLoop]: 1521 mSDtfsCounter, 781 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 2275 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:31,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 2275 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:31,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3212 states. [2024-11-24 01:23:31,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3212 to 3210. [2024-11-24 01:23:31,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3210 states, 2514 states have (on average 1.5039777247414479) internal successors, (3781), 2549 states have internal predecessors, (3781), 487 states have call successors, (487), 209 states have call predecessors, (487), 208 states have return successors, (538), 463 states have call predecessors, (538), 483 states have call successors, (538) [2024-11-24 01:23:31,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3210 states to 3210 states and 4806 transitions. [2024-11-24 01:23:31,466 INFO L78 Accepts]: Start accepts. Automaton has 3210 states and 4806 transitions. Word has length 219 [2024-11-24 01:23:31,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:31,466 INFO L471 AbstractCegarLoop]: Abstraction has 3210 states and 4806 transitions. [2024-11-24 01:23:31,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 01:23:31,467 INFO L276 IsEmpty]: Start isEmpty. Operand 3210 states and 4806 transitions. [2024-11-24 01:23:31,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-24 01:23:31,483 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:31,484 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:31,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 01:23:31,484 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:31,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:31,485 INFO L85 PathProgramCache]: Analyzing trace with hash 444589967, now seen corresponding path program 1 times [2024-11-24 01:23:31,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:31,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724274124] [2024-11-24 01:23:31,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:31,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:31,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:31,912 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-24 01:23:31,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:31,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724274124] [2024-11-24 01:23:31,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724274124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:31,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:31,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 01:23:31,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531008718] [2024-11-24 01:23:31,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:31,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:23:31,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:31,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:23:31,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:23:31,917 INFO L87 Difference]: Start difference. First operand 3210 states and 4806 transitions. Second operand has 9 states, 7 states have (on average 19.0) internal successors, (133), 8 states have internal predecessors, (133), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-24 01:23:32,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:32,404 INFO L93 Difference]: Finished difference Result 6246 states and 9406 transitions. [2024-11-24 01:23:32,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:23:32,406 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 19.0) internal successors, (133), 8 states have internal predecessors, (133), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 217 [2024-11-24 01:23:32,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:32,447 INFO L225 Difference]: With dead ends: 6246 [2024-11-24 01:23:32,447 INFO L226 Difference]: Without dead ends: 3216 [2024-11-24 01:23:32,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:23:32,461 INFO L435 NwaCegarLoop]: 810 mSDtfsCounter, 7 mSDsluCounter, 5640 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 6450 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:32,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 6450 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:23:32,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3216 states. [2024-11-24 01:23:32,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3216 to 3210. [2024-11-24 01:23:32,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3210 states, 2514 states have (on average 1.5039777247414479) internal successors, (3781), 2549 states have internal predecessors, (3781), 487 states have call successors, (487), 209 states have call predecessors, (487), 208 states have return successors, (535), 463 states have call predecessors, (535), 483 states have call successors, (535) [2024-11-24 01:23:32,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3210 states to 3210 states and 4803 transitions. [2024-11-24 01:23:32,741 INFO L78 Accepts]: Start accepts. Automaton has 3210 states and 4803 transitions. Word has length 217 [2024-11-24 01:23:32,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:32,742 INFO L471 AbstractCegarLoop]: Abstraction has 3210 states and 4803 transitions. [2024-11-24 01:23:32,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 19.0) internal successors, (133), 8 states have internal predecessors, (133), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-24 01:23:32,742 INFO L276 IsEmpty]: Start isEmpty. Operand 3210 states and 4803 transitions. [2024-11-24 01:23:32,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-24 01:23:32,757 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:32,757 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:32,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 01:23:32,758 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:32,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:32,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1633756692, now seen corresponding path program 2 times [2024-11-24 01:23:32,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:32,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374743213] [2024-11-24 01:23:32,759 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:23:32,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:32,805 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:23:32,806 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:23:32,962 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-24 01:23:32,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:32,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374743213] [2024-11-24 01:23:32,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374743213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:32,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:32,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:23:32,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907598240] [2024-11-24 01:23:32,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:32,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:23:32,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:32,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:23:32,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:23:32,966 INFO L87 Difference]: Start difference. First operand 3210 states and 4803 transitions. Second operand has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 01:23:33,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:33,176 INFO L93 Difference]: Finished difference Result 3724 states and 5525 transitions. [2024-11-24 01:23:33,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:23:33,177 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) Word has length 218 [2024-11-24 01:23:33,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:33,202 INFO L225 Difference]: With dead ends: 3724 [2024-11-24 01:23:33,202 INFO L226 Difference]: Without dead ends: 3210 [2024-11-24 01:23:33,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:23:33,208 INFO L435 NwaCegarLoop]: 824 mSDtfsCounter, 0 mSDsluCounter, 4111 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4935 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:33,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4935 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:33,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3210 states. [2024-11-24 01:23:33,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3210 to 3210. [2024-11-24 01:23:33,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3210 states, 2514 states have (on average 1.5031821797931584) internal successors, (3779), 2549 states have internal predecessors, (3779), 487 states have call successors, (487), 209 states have call predecessors, (487), 208 states have return successors, (535), 463 states have call predecessors, (535), 483 states have call successors, (535) [2024-11-24 01:23:33,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3210 states to 3210 states and 4801 transitions. [2024-11-24 01:23:33,448 INFO L78 Accepts]: Start accepts. Automaton has 3210 states and 4801 transitions. Word has length 218 [2024-11-24 01:23:33,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:33,449 INFO L471 AbstractCegarLoop]: Abstraction has 3210 states and 4801 transitions. [2024-11-24 01:23:33,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 01:23:33,450 INFO L276 IsEmpty]: Start isEmpty. Operand 3210 states and 4801 transitions. [2024-11-24 01:23:33,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-24 01:23:33,462 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:33,462 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:33,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 01:23:33,463 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:33,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:33,463 INFO L85 PathProgramCache]: Analyzing trace with hash 627160848, now seen corresponding path program 1 times [2024-11-24 01:23:33,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:33,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77514845] [2024-11-24 01:23:33,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:33,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:33,726 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-24 01:23:33,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:33,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77514845] [2024-11-24 01:23:33,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77514845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:33,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:33,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 01:23:33,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519240178] [2024-11-24 01:23:33,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:33,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:23:33,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:33,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:23:33,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:23:33,730 INFO L87 Difference]: Start difference. First operand 3210 states and 4801 transitions. Second operand has 9 states, 7 states have (on average 19.857142857142858) internal successors, (139), 8 states have internal predecessors, (139), 4 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-24 01:23:34,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:34,045 INFO L93 Difference]: Finished difference Result 6258 states and 9429 transitions. [2024-11-24 01:23:34,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:23:34,045 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 19.857142857142858) internal successors, (139), 8 states have internal predecessors, (139), 4 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 225 [2024-11-24 01:23:34,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:34,075 INFO L225 Difference]: With dead ends: 6258 [2024-11-24 01:23:34,075 INFO L226 Difference]: Without dead ends: 3228 [2024-11-24 01:23:34,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:23:34,085 INFO L435 NwaCegarLoop]: 812 mSDtfsCounter, 4 mSDsluCounter, 5654 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6466 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:34,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 6466 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:23:34,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3228 states. [2024-11-24 01:23:34,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3228 to 3216. [2024-11-24 01:23:34,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3216 states, 2517 states have (on average 1.5025824394119984) internal successors, (3782), 2555 states have internal predecessors, (3782), 487 states have call successors, (487), 209 states have call predecessors, (487), 211 states have return successors, (550), 463 states have call predecessors, (550), 483 states have call successors, (550) [2024-11-24 01:23:34,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 4819 transitions. [2024-11-24 01:23:34,294 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 4819 transitions. Word has length 225 [2024-11-24 01:23:34,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:34,294 INFO L471 AbstractCegarLoop]: Abstraction has 3216 states and 4819 transitions. [2024-11-24 01:23:34,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 19.857142857142858) internal successors, (139), 8 states have internal predecessors, (139), 4 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-24 01:23:34,295 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 4819 transitions. [2024-11-24 01:23:34,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-24 01:23:34,307 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:34,307 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:34,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 01:23:34,307 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:34,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:34,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1196307470, now seen corresponding path program 1 times [2024-11-24 01:23:34,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:34,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458085217] [2024-11-24 01:23:34,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:34,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:34,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:34,524 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-24 01:23:34,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:34,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458085217] [2024-11-24 01:23:34,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458085217] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:34,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150208812] [2024-11-24 01:23:34,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:34,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:34,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:34,527 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:34,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 01:23:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:35,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 1624 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:23:35,050 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:35,078 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-24 01:23:35,079 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:23:35,255 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-24 01:23:35,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150208812] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:23:35,256 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:23:35,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-24 01:23:35,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311222330] [2024-11-24 01:23:35,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:23:35,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:23:35,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:35,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:23:35,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:23:35,258 INFO L87 Difference]: Start difference. First operand 3216 states and 4819 transitions. Second operand has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 7 states have internal predecessors, (178), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2024-11-24 01:23:35,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:35,721 INFO L93 Difference]: Finished difference Result 7221 states and 11064 transitions. [2024-11-24 01:23:35,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:23:35,722 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 7 states have internal predecessors, (178), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 226 [2024-11-24 01:23:35,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:35,765 INFO L225 Difference]: With dead ends: 7221 [2024-11-24 01:23:35,765 INFO L226 Difference]: Without dead ends: 5859 [2024-11-24 01:23:35,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:23:35,776 INFO L435 NwaCegarLoop]: 886 mSDtfsCounter, 920 mSDsluCounter, 1536 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 2422 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:35,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 2422 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:23:35,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5859 states. [2024-11-24 01:23:36,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5859 to 5757. [2024-11-24 01:23:36,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5757 states, 4677 states have (on average 1.5360273679709215) internal successors, (7184), 4715 states have internal predecessors, (7184), 868 states have call successors, (868), 209 states have call predecessors, (868), 211 states have return successors, (961), 844 states have call predecessors, (961), 864 states have call successors, (961) [2024-11-24 01:23:36,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5757 states to 5757 states and 9013 transitions. [2024-11-24 01:23:36,310 INFO L78 Accepts]: Start accepts. Automaton has 5757 states and 9013 transitions. Word has length 226 [2024-11-24 01:23:36,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:36,311 INFO L471 AbstractCegarLoop]: Abstraction has 5757 states and 9013 transitions. [2024-11-24 01:23:36,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 7 states have internal predecessors, (178), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2024-11-24 01:23:36,312 INFO L276 IsEmpty]: Start isEmpty. Operand 5757 states and 9013 transitions. [2024-11-24 01:23:36,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-24 01:23:36,353 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:36,353 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:36,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-24 01:23:36,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abfaea4a-4376-4b51-bc74-c5795e8da343/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-24 01:23:36,559 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:36,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:36,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1431429937, now seen corresponding path program 1 times [2024-11-24 01:23:36,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:36,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224174121] [2024-11-24 01:23:36,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:36,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:36,725 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-24 01:23:36,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:36,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224174121] [2024-11-24 01:23:36,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224174121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:36,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:36,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:23:36,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738960596] [2024-11-24 01:23:36,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:36,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:23:36,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:36,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:23:36,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:36,728 INFO L87 Difference]: Start difference. First operand 5757 states and 9013 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-24 01:23:37,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:37,110 INFO L93 Difference]: Finished difference Result 13464 states and 21339 transitions. [2024-11-24 01:23:37,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:23:37,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 231 [2024-11-24 01:23:37,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:37,158 INFO L225 Difference]: With dead ends: 13464 [2024-11-24 01:23:37,159 INFO L226 Difference]: Without dead ends: 8646 [2024-11-24 01:23:37,173 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:37,175 INFO L435 NwaCegarLoop]: 835 mSDtfsCounter, 163 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:37,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 1647 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:37,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8646 states. [2024-11-24 01:23:37,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8646 to 8610. [2024-11-24 01:23:37,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8610 states, 7065 states have (on average 1.545930644019816) internal successors, (10922), 7103 states have internal predecessors, (10922), 1333 states have call successors, (1333), 209 states have call predecessors, (1333), 211 states have return successors, (1456), 1309 states have call predecessors, (1456), 1329 states have call successors, (1456) [2024-11-24 01:23:37,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8610 states to 8610 states and 13711 transitions. [2024-11-24 01:23:37,643 INFO L78 Accepts]: Start accepts. Automaton has 8610 states and 13711 transitions. Word has length 231 [2024-11-24 01:23:37,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:37,643 INFO L471 AbstractCegarLoop]: Abstraction has 8610 states and 13711 transitions. [2024-11-24 01:23:37,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-24 01:23:37,644 INFO L276 IsEmpty]: Start isEmpty. Operand 8610 states and 13711 transitions. [2024-11-24 01:23:37,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-24 01:23:37,675 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:37,675 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:37,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 01:23:37,676 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:37,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:37,676 INFO L85 PathProgramCache]: Analyzing trace with hash -802444566, now seen corresponding path program 1 times [2024-11-24 01:23:37,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:37,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589869862] [2024-11-24 01:23:37,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:37,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:37,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:37,787 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-24 01:23:37,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:37,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589869862] [2024-11-24 01:23:37,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589869862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:37,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:37,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:23:37,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934760891] [2024-11-24 01:23:37,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:37,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:23:37,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:37,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:23:37,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:37,790 INFO L87 Difference]: Start difference. First operand 8610 states and 13711 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-24 01:23:38,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:38,267 INFO L93 Difference]: Finished difference Result 20676 states and 33204 transitions. [2024-11-24 01:23:38,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:23:38,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 232 [2024-11-24 01:23:38,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:38,335 INFO L225 Difference]: With dead ends: 20676 [2024-11-24 01:23:38,335 INFO L226 Difference]: Without dead ends: 12798 [2024-11-24 01:23:38,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:38,359 INFO L435 NwaCegarLoop]: 828 mSDtfsCounter, 161 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:38,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 1646 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:38,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12798 states. [2024-11-24 01:23:39,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12798 to 12762. [2024-11-24 01:23:39,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12762 states, 10590 states have (on average 1.554579792256846) internal successors, (16463), 10628 states have internal predecessors, (16463), 1960 states have call successors, (1960), 209 states have call predecessors, (1960), 211 states have return successors, (2083), 1936 states have call predecessors, (2083), 1956 states have call successors, (2083) [2024-11-24 01:23:39,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12762 states to 12762 states and 20506 transitions. [2024-11-24 01:23:39,166 INFO L78 Accepts]: Start accepts. Automaton has 12762 states and 20506 transitions. Word has length 232 [2024-11-24 01:23:39,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:39,167 INFO L471 AbstractCegarLoop]: Abstraction has 12762 states and 20506 transitions. [2024-11-24 01:23:39,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-24 01:23:39,168 INFO L276 IsEmpty]: Start isEmpty. Operand 12762 states and 20506 transitions. [2024-11-24 01:23:39,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-24 01:23:39,229 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:39,229 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:39,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 01:23:39,230 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:39,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:39,230 INFO L85 PathProgramCache]: Analyzing trace with hash 800496330, now seen corresponding path program 1 times [2024-11-24 01:23:39,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:39,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366258001] [2024-11-24 01:23:39,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:39,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:39,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:39,343 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-24 01:23:39,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:39,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366258001] [2024-11-24 01:23:39,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366258001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:39,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:39,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:23:39,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172639589] [2024-11-24 01:23:39,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:39,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:23:39,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:39,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:23:39,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:39,345 INFO L87 Difference]: Start difference. First operand 12762 states and 20506 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-24 01:23:40,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:40,316 INFO L93 Difference]: Finished difference Result 30390 states and 49224 transitions. [2024-11-24 01:23:40,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:23:40,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 233 [2024-11-24 01:23:40,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:40,444 INFO L225 Difference]: With dead ends: 30390 [2024-11-24 01:23:40,445 INFO L226 Difference]: Without dead ends: 19203 [2024-11-24 01:23:40,486 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:40,488 INFO L435 NwaCegarLoop]: 826 mSDtfsCounter, 159 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:40,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 1641 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:40,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19203 states. [2024-11-24 01:23:41,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19203 to 19167. [2024-11-24 01:23:41,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19167 states, 16137 states have (on average 1.562682035074673) internal successors, (25217), 16175 states have internal predecessors, (25217), 2818 states have call successors, (2818), 209 states have call predecessors, (2818), 211 states have return successors, (2989), 2794 states have call predecessors, (2989), 2814 states have call successors, (2989) [2024-11-24 01:23:41,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19167 states to 19167 states and 31024 transitions. [2024-11-24 01:23:41,713 INFO L78 Accepts]: Start accepts. Automaton has 19167 states and 31024 transitions. Word has length 233 [2024-11-24 01:23:41,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:41,713 INFO L471 AbstractCegarLoop]: Abstraction has 19167 states and 31024 transitions. [2024-11-24 01:23:41,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-24 01:23:41,714 INFO L276 IsEmpty]: Start isEmpty. Operand 19167 states and 31024 transitions. [2024-11-24 01:23:41,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-11-24 01:23:41,810 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:41,810 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:41,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 01:23:41,810 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:41,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:41,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1521964158, now seen corresponding path program 1 times [2024-11-24 01:23:41,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:41,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385239259] [2024-11-24 01:23:41,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:41,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:41,943 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-24 01:23:41,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:41,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385239259] [2024-11-24 01:23:41,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385239259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:41,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:41,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:23:41,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472087823] [2024-11-24 01:23:41,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:41,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:23:41,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:41,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:23:41,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:41,946 INFO L87 Difference]: Start difference. First operand 19167 states and 31024 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-24 01:23:42,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:42,986 INFO L93 Difference]: Finished difference Result 46116 states and 75228 transitions. [2024-11-24 01:23:42,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:23:42,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 234 [2024-11-24 01:23:42,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:43,144 INFO L225 Difference]: With dead ends: 46116 [2024-11-24 01:23:43,145 INFO L226 Difference]: Without dead ends: 29763 [2024-11-24 01:23:43,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:43,188 INFO L435 NwaCegarLoop]: 826 mSDtfsCounter, 157 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:43,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1641 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:43,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29763 states. [2024-11-24 01:23:44,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29763 to 29727. [2024-11-24 01:23:44,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29727 states, 25374 states have (on average 1.5705446520059905) internal successors, (39851), 25412 states have internal predecessors, (39851), 4141 states have call successors, (4141), 209 states have call predecessors, (4141), 211 states have return successors, (4390), 4117 states have call predecessors, (4390), 4137 states have call successors, (4390) [2024-11-24 01:23:44,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29727 states to 29727 states and 48382 transitions. [2024-11-24 01:23:44,897 INFO L78 Accepts]: Start accepts. Automaton has 29727 states and 48382 transitions. Word has length 234 [2024-11-24 01:23:44,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:44,898 INFO L471 AbstractCegarLoop]: Abstraction has 29727 states and 48382 transitions. [2024-11-24 01:23:44,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-24 01:23:44,899 INFO L276 IsEmpty]: Start isEmpty. Operand 29727 states and 48382 transitions. [2024-11-24 01:23:45,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-24 01:23:45,025 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:45,025 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:45,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 01:23:45,026 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:45,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:45,026 INFO L85 PathProgramCache]: Analyzing trace with hash -80636683, now seen corresponding path program 1 times [2024-11-24 01:23:45,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:45,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472415134] [2024-11-24 01:23:45,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:45,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:45,145 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-24 01:23:45,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:45,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472415134] [2024-11-24 01:23:45,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472415134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:45,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:45,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:23:45,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438353169] [2024-11-24 01:23:45,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:45,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:23:45,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:45,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:23:45,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:45,149 INFO L87 Difference]: Start difference. First operand 29727 states and 48382 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-24 01:23:47,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:47,340 INFO L93 Difference]: Finished difference Result 73083 states and 119610 transitions. [2024-11-24 01:23:47,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:23:47,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 235 [2024-11-24 01:23:47,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:47,610 INFO L225 Difference]: With dead ends: 73083 [2024-11-24 01:23:47,610 INFO L226 Difference]: Without dead ends: 47925 [2024-11-24 01:23:47,696 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:47,697 INFO L435 NwaCegarLoop]: 837 mSDtfsCounter, 155 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:47,697 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 1650 Invalid, 4 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:47,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47925 states. [2024-11-24 01:23:50,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47925 to 47889. [2024-11-24 01:23:50,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47889 states, 40803 states have (on average 1.5672867191137907) internal successors, (63950), 40841 states have internal predecessors, (63950), 6874 states have call successors, (6874), 209 states have call predecessors, (6874), 211 states have return successors, (7255), 6850 states have call predecessors, (7255), 6870 states have call successors, (7255) [2024-11-24 01:23:50,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47889 states to 47889 states and 78079 transitions. [2024-11-24 01:23:50,341 INFO L78 Accepts]: Start accepts. Automaton has 47889 states and 78079 transitions. Word has length 235 [2024-11-24 01:23:50,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:50,341 INFO L471 AbstractCegarLoop]: Abstraction has 47889 states and 78079 transitions. [2024-11-24 01:23:50,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-24 01:23:50,342 INFO L276 IsEmpty]: Start isEmpty. Operand 47889 states and 78079 transitions. [2024-11-24 01:23:50,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-24 01:23:50,532 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:50,532 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:50,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-24 01:23:50,534 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:50,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:50,535 INFO L85 PathProgramCache]: Analyzing trace with hash -2076285609, now seen corresponding path program 1 times [2024-11-24 01:23:50,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:50,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103064590] [2024-11-24 01:23:50,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:50,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:50,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:50,645 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-24 01:23:50,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:50,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103064590] [2024-11-24 01:23:50,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103064590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:50,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:50,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:23:50,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821669645] [2024-11-24 01:23:50,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:50,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:23:50,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:50,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:23:50,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:50,647 INFO L87 Difference]: Start difference. First operand 47889 states and 78079 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-24 01:23:53,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:53,432 INFO L93 Difference]: Finished difference Result 122709 states and 201594 transitions. [2024-11-24 01:23:53,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:23:53,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 236 [2024-11-24 01:23:53,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:53,791 INFO L225 Difference]: With dead ends: 122709 [2024-11-24 01:23:53,791 INFO L226 Difference]: Without dead ends: 81438 [2024-11-24 01:23:53,922 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:53,922 INFO L435 NwaCegarLoop]: 826 mSDtfsCounter, 153 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1644 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:53,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 1644 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:53,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81438 states. [2024-11-24 01:23:57,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81438 to 81402. [2024-11-24 01:23:57,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81402 states, 69642 states have (on average 1.572829614313202) internal successors, (109535), 69680 states have internal predecessors, (109535), 11548 states have call successors, (11548), 209 states have call predecessors, (11548), 211 states have return successors, (12163), 11524 states have call predecessors, (12163), 11544 states have call successors, (12163) [2024-11-24 01:23:57,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81402 states to 81402 states and 133246 transitions. [2024-11-24 01:23:57,918 INFO L78 Accepts]: Start accepts. Automaton has 81402 states and 133246 transitions. Word has length 236 [2024-11-24 01:23:57,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:57,918 INFO L471 AbstractCegarLoop]: Abstraction has 81402 states and 133246 transitions. [2024-11-24 01:23:57,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-24 01:23:57,919 INFO L276 IsEmpty]: Start isEmpty. Operand 81402 states and 133246 transitions. [2024-11-24 01:23:58,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-24 01:23:58,722 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:58,723 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:58,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-24 01:23:58,723 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:58,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:58,724 INFO L85 PathProgramCache]: Analyzing trace with hash -2058058194, now seen corresponding path program 1 times [2024-11-24 01:23:58,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:58,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490950224] [2024-11-24 01:23:58,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:58,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:58,841 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-24 01:23:58,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:58,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490950224] [2024-11-24 01:23:58,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490950224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:58,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:58,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:23:58,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351953166] [2024-11-24 01:23:58,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:58,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:23:58,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:58,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:23:58,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:58,844 INFO L87 Difference]: Start difference. First operand 81402 states and 133246 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-24 01:24:02,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:02,070 INFO L93 Difference]: Finished difference Result 200877 states and 326958 transitions. [2024-11-24 01:24:02,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:24:02,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 237 [2024-11-24 01:24:02,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:02,593 INFO L225 Difference]: With dead ends: 200877 [2024-11-24 01:24:02,593 INFO L226 Difference]: Without dead ends: 130809 [2024-11-24 01:24:03,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:24:03,017 INFO L435 NwaCegarLoop]: 843 mSDtfsCounter, 151 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:03,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1634 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:24:03,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130809 states. [2024-11-24 01:24:08,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130809 to 130773. [2024-11-24 01:24:08,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130773 states, 112056 states have (on average 1.5436299707289212) internal successors, (172973), 112094 states have internal predecessors, (172973), 18505 states have call successors, (18505), 209 states have call predecessors, (18505), 211 states have return successors, (19552), 18481 states have call predecessors, (19552), 18501 states have call successors, (19552) [2024-11-24 01:24:08,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130773 states to 130773 states and 211030 transitions. [2024-11-24 01:24:08,970 INFO L78 Accepts]: Start accepts. Automaton has 130773 states and 211030 transitions. Word has length 237 [2024-11-24 01:24:08,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:08,970 INFO L471 AbstractCegarLoop]: Abstraction has 130773 states and 211030 transitions. [2024-11-24 01:24:08,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-24 01:24:08,970 INFO L276 IsEmpty]: Start isEmpty. Operand 130773 states and 211030 transitions. [2024-11-24 01:24:09,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-24 01:24:09,375 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:09,375 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:24:09,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-24 01:24:09,375 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:09,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:09,376 INFO L85 PathProgramCache]: Analyzing trace with hash -43282225, now seen corresponding path program 1 times [2024-11-24 01:24:09,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:09,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280535251] [2024-11-24 01:24:09,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:09,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:09,481 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-24 01:24:09,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:09,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280535251] [2024-11-24 01:24:09,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280535251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:24:09,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:24:09,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:24:09,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161160392] [2024-11-24 01:24:09,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:09,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:24:09,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:09,483 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:24:09,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:24:09,483 INFO L87 Difference]: Start difference. First operand 130773 states and 211030 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28)