./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec3_product19.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_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/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_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec3_product19.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/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_03e10dac-6fb9-41a4-871d-e98e4231d5f7/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 0eb0a93133a0d165b4e13ef7269be4b8c3f0f81976a167102da919b09b6c6616 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:34:36,148 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:34:36,227 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:34:36,233 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:34:36,233 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:34:36,259 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:34:36,260 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:34:36,260 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:34:36,261 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:34:36,261 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:34:36,261 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:34:36,261 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:34:36,262 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:34:36,262 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:34:36,262 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:34:36,262 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:34:36,263 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:34:36,263 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:34:36,263 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:34:36,263 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:34:36,263 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:34:36,263 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:34:36,264 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:34:36,264 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:34:36,264 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:34:36,264 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:34:36,264 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:34:36,264 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:34:36,264 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:34:36,264 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:34:36,264 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:34:36,265 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:34:36,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:34:36,265 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:34:36,265 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:34:36,265 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:34:36,265 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:34:36,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:34:36,265 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:34:36,265 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:34:36,266 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:34:36,266 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:34:36,266 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:34:36,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:34:36,266 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:34:36,266 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:34:36,266 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:34:36,266 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:34:36,266 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_03e10dac-6fb9-41a4-871d-e98e4231d5f7/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 -> 0eb0a93133a0d165b4e13ef7269be4b8c3f0f81976a167102da919b09b6c6616 [2024-11-24 01:34:36,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:34:36,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:34:36,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:34:36,627 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:34:36,627 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:34:36,629 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/email_spec3_product19.cil.c [2024-11-24 01:34:39,919 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/data/0c7e14b6a/2aa3704fc2a94bffa64837beb350d93c/FLAG44251e448 [2024-11-24 01:34:40,356 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:34:40,357 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/sv-benchmarks/c/product-lines/email_spec3_product19.cil.c [2024-11-24 01:34:40,383 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/data/0c7e14b6a/2aa3704fc2a94bffa64837beb350d93c/FLAG44251e448 [2024-11-24 01:34:40,510 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/data/0c7e14b6a/2aa3704fc2a94bffa64837beb350d93c [2024-11-24 01:34:40,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:34:40,514 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:34:40,515 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:34:40,516 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:34:40,521 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:34:40,522 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:34:40" (1/1) ... [2024-11-24 01:34:40,523 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@692d0520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:40, skipping insertion in model container [2024-11-24 01:34:40,523 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:34:40" (1/1) ... [2024-11-24 01:34:40,578 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:34:40,883 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_03e10dac-6fb9-41a4-871d-e98e4231d5f7/sv-benchmarks/c/product-lines/email_spec3_product19.cil.c[8336,8349] [2024-11-24 01:34:41,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:34:41,190 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:34:41,200 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2024-11-24 01:34:41,201 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [66] [2024-11-24 01:34:41,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [115] [2024-11-24 01:34:41,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [431] [2024-11-24 01:34:41,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [440] [2024-11-24 01:34:41,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [498] [2024-11-24 01:34:41,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [723] [2024-11-24 01:34:41,203 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [821] [2024-11-24 01:34:41,207 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1895] [2024-11-24 01:34:41,208 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2170] [2024-11-24 01:34:41,208 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2571] [2024-11-24 01:34:41,244 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_03e10dac-6fb9-41a4-871d-e98e4231d5f7/sv-benchmarks/c/product-lines/email_spec3_product19.cil.c[8336,8349] [2024-11-24 01:34:41,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:34:41,434 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:34:41,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:41 WrapperNode [2024-11-24 01:34:41,436 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:34:41,437 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:34:41,438 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:34:41,438 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:34:41,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:41" (1/1) ... [2024-11-24 01:34:41,476 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:41" (1/1) ... [2024-11-24 01:34:41,536 INFO L138 Inliner]: procedures = 128, calls = 192, calls flagged for inlining = 58, calls inlined = 53, statements flattened = 978 [2024-11-24 01:34:41,536 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:34:41,537 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:34:41,537 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:34:41,537 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:34:41,547 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:41" (1/1) ... [2024-11-24 01:34:41,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:41" (1/1) ... [2024-11-24 01:34:41,553 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:41" (1/1) ... [2024-11-24 01:34:41,576 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 01:34:41,576 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:41" (1/1) ... [2024-11-24 01:34:41,577 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:41" (1/1) ... [2024-11-24 01:34:41,611 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:41" (1/1) ... [2024-11-24 01:34:41,613 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:41" (1/1) ... [2024-11-24 01:34:41,628 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:41" (1/1) ... [2024-11-24 01:34:41,640 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:41" (1/1) ... [2024-11-24 01:34:41,643 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:41" (1/1) ... [2024-11-24 01:34:41,655 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:34:41,659 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:34:41,660 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:34:41,660 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:34:41,661 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:41" (1/1) ... [2024-11-24 01:34:41,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:34:41,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:34:41,715 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:34:41,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:34:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-24 01:34:41,778 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-24 01:34:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-24 01:34:41,778 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-24 01:34:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-24 01:34:41,779 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-24 01:34:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-24 01:34:41,780 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-24 01:34:41,780 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-24 01:34:41,780 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-24 01:34:41,780 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-24 01:34:41,780 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-24 01:34:41,780 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-24 01:34:41,780 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-24 01:34:41,780 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-24 01:34:41,781 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-24 01:34:41,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:34:41,781 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-24 01:34:41,781 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-24 01:34:41,781 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-24 01:34:41,782 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-24 01:34:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-24 01:34:41,782 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-24 01:34:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-24 01:34:41,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-24 01:34:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-24 01:34:41,784 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-24 01:34:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-24 01:34:41,785 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-24 01:34:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-24 01:34:41,785 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-24 01:34:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-24 01:34:41,785 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-24 01:34:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-24 01:34:41,785 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-24 01:34:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-24 01:34:41,785 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-24 01:34:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:34:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 01:34:41,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 01:34:41,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 01:34:41,786 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-24 01:34:41,786 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-24 01:34:41,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:34:41,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:34:42,020 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:34:42,023 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:34:43,289 INFO L? ?]: Removed 433 outVars from TransFormulas that were not future-live. [2024-11-24 01:34:43,289 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:34:43,321 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:34:43,324 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:34:43,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:34:43 BoogieIcfgContainer [2024-11-24 01:34:43,325 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:34:43,328 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:34:43,330 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:34:43,341 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:34:43,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:34:40" (1/3) ... [2024-11-24 01:34:43,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@614152c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:34:43, skipping insertion in model container [2024-11-24 01:34:43,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:41" (2/3) ... [2024-11-24 01:34:43,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@614152c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:34:43, skipping insertion in model container [2024-11-24 01:34:43,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:34:43" (3/3) ... [2024-11-24 01:34:43,347 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec3_product19.cil.c [2024-11-24 01:34:43,367 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:34:43,373 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec3_product19.cil.c that has 20 procedures, 322 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:34:43,486 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:34:43,507 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;@7c128c44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:34:43,507 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:34:43,514 INFO L276 IsEmpty]: Start isEmpty. Operand has 322 states, 251 states have (on average 1.5219123505976095) internal successors, (382), 255 states have internal predecessors, (382), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-24 01:34:43,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 01:34:43,541 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:43,543 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:34:43,545 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:34:43,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:43,552 INFO L85 PathProgramCache]: Analyzing trace with hash 387547210, now seen corresponding path program 1 times [2024-11-24 01:34:43,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:43,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172850475] [2024-11-24 01:34:43,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:43,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:44,669 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-24 01:34:44,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:44,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172850475] [2024-11-24 01:34:44,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172850475] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:34:44,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013525487] [2024-11-24 01:34:44,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:44,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:34:44,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:34:44,679 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:34:44,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:34:45,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:45,256 INFO L256 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 01:34:45,270 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:34:45,330 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 01:34:45,330 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:34:45,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013525487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:45,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:34:45,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-24 01:34:45,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160317505] [2024-11-24 01:34:45,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:45,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:34:45,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:45,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:34:45,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:34:45,377 INFO L87 Difference]: Start difference. First operand has 322 states, 251 states have (on average 1.5219123505976095) internal successors, (382), 255 states have internal predecessors, (382), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:34:45,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:45,493 INFO L93 Difference]: Finished difference Result 492 states and 724 transitions. [2024-11-24 01:34:45,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:34:45,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 103 [2024-11-24 01:34:45,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:45,510 INFO L225 Difference]: With dead ends: 492 [2024-11-24 01:34:45,510 INFO L226 Difference]: Without dead ends: 316 [2024-11-24 01:34:45,518 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:34:45,522 INFO L435 NwaCegarLoop]: 474 mSDtfsCounter, 1 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:34:45,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 945 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:34:45,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-24 01:34:45,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 315. [2024-11-24 01:34:45,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 246 states have (on average 1.5121951219512195) internal successors, (372), 248 states have internal predecessors, (372), 50 states have call successors, (50), 19 states have call predecessors, (50), 18 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-24 01:34:45,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 469 transitions. [2024-11-24 01:34:45,632 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 469 transitions. Word has length 103 [2024-11-24 01:34:45,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:45,634 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 469 transitions. [2024-11-24 01:34:45,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:34:45,636 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 469 transitions. [2024-11-24 01:34:45,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 01:34:45,648 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:45,648 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:34:45,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:34:45,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 01:34:45,851 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:34:45,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:45,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1887008795, now seen corresponding path program 1 times [2024-11-24 01:34:45,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:45,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395120957] [2024-11-24 01:34:45,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:45,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:46,387 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-24 01:34:46,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:46,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395120957] [2024-11-24 01:34:46,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395120957] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:34:46,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411929003] [2024-11-24 01:34:46,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:46,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:34:46,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:34:46,394 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:34:46,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:34:46,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:46,900 INFO L256 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:34:46,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:34:46,963 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 01:34:46,963 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:34:46,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411929003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:46,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:34:46,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-24 01:34:46,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458281208] [2024-11-24 01:34:46,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:46,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:34:46,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:46,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:34:46,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:34:46,966 INFO L87 Difference]: Start difference. First operand 315 states and 469 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:34:47,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:47,054 INFO L93 Difference]: Finished difference Result 660 states and 997 transitions. [2024-11-24 01:34:47,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:34:47,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 108 [2024-11-24 01:34:47,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:47,067 INFO L225 Difference]: With dead ends: 660 [2024-11-24 01:34:47,067 INFO L226 Difference]: Without dead ends: 371 [2024-11-24 01:34:47,069 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:34:47,071 INFO L435 NwaCegarLoop]: 479 mSDtfsCounter, 107 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 898 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 01:34:47,073 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 898 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:34:47,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-24 01:34:47,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 363. [2024-11-24 01:34:47,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 283 states have (on average 1.530035335689046) internal successors, (433), 285 states have internal predecessors, (433), 61 states have call successors, (61), 19 states have call predecessors, (61), 18 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-24 01:34:47,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 552 transitions. [2024-11-24 01:34:47,146 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 552 transitions. Word has length 108 [2024-11-24 01:34:47,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:47,147 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 552 transitions. [2024-11-24 01:34:47,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:34:47,147 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 552 transitions. [2024-11-24 01:34:47,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 01:34:47,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:47,155 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:34:47,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:34:47,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:34:47,355 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:34:47,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:47,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1172910043, now seen corresponding path program 1 times [2024-11-24 01:34:47,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:47,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092052867] [2024-11-24 01:34:47,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:47,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:47,754 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-24 01:34:47,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:47,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092052867] [2024-11-24 01:34:47,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092052867] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:34:47,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044294532] [2024-11-24 01:34:47,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:47,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:34:47,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:34:47,762 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:34:47,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:34:48,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:48,246 INFO L256 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 01:34:48,252 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:34:48,328 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 01:34:48,328 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:34:48,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044294532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:48,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:34:48,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-24 01:34:48,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349369234] [2024-11-24 01:34:48,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:48,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:34:48,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:48,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:34:48,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:34:48,331 INFO L87 Difference]: Start difference. First operand 363 states and 552 transitions. Second operand has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:34:48,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:48,424 INFO L93 Difference]: Finished difference Result 717 states and 1094 transitions. [2024-11-24 01:34:48,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:34:48,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 109 [2024-11-24 01:34:48,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:48,430 INFO L225 Difference]: With dead ends: 717 [2024-11-24 01:34:48,430 INFO L226 Difference]: Without dead ends: 365 [2024-11-24 01:34:48,431 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:34:48,432 INFO L435 NwaCegarLoop]: 460 mSDtfsCounter, 2 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1829 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:34:48,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1829 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:34:48,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-24 01:34:48,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2024-11-24 01:34:48,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 284 states have (on average 1.528169014084507) internal successors, (434), 287 states have internal predecessors, (434), 61 states have call successors, (61), 19 states have call predecessors, (61), 19 states have return successors, (60), 58 states have call predecessors, (60), 58 states have call successors, (60) [2024-11-24 01:34:48,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 555 transitions. [2024-11-24 01:34:48,473 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 555 transitions. Word has length 109 [2024-11-24 01:34:48,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:48,474 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 555 transitions. [2024-11-24 01:34:48,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:34:48,476 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 555 transitions. [2024-11-24 01:34:48,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 01:34:48,482 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:48,482 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:34:48,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 01:34:48,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:34:48,683 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:34:48,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:48,683 INFO L85 PathProgramCache]: Analyzing trace with hash -2127741424, now seen corresponding path program 1 times [2024-11-24 01:34:48,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:48,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321799208] [2024-11-24 01:34:48,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:48,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:48,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:49,024 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-24 01:34:49,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:49,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321799208] [2024-11-24 01:34:49,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321799208] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:34:49,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894374513] [2024-11-24 01:34:49,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:49,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:34:49,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:34:49,031 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:34:49,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:34:49,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:49,471 INFO L256 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 01:34:49,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:34:49,550 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 01:34:49,550 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:34:49,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894374513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:49,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:34:49,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-24 01:34:49,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274788080] [2024-11-24 01:34:49,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:49,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:34:49,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:49,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:34:49,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:34:49,553 INFO L87 Difference]: Start difference. First operand 365 states and 555 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:34:49,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:49,666 INFO L93 Difference]: Finished difference Result 719 states and 1099 transitions. [2024-11-24 01:34:49,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:34:49,667 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 110 [2024-11-24 01:34:49,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:49,671 INFO L225 Difference]: With dead ends: 719 [2024-11-24 01:34:49,672 INFO L226 Difference]: Without dead ends: 367 [2024-11-24 01:34:49,673 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:34:49,675 INFO L435 NwaCegarLoop]: 458 mSDtfsCounter, 2 mSDsluCounter, 1357 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1815 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:34:49,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1815 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:34:49,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-24 01:34:49,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 367. [2024-11-24 01:34:49,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 285 states have (on average 1.5263157894736843) internal successors, (435), 289 states have internal predecessors, (435), 61 states have call successors, (61), 19 states have call predecessors, (61), 20 states have return successors, (65), 58 states have call predecessors, (65), 58 states have call successors, (65) [2024-11-24 01:34:49,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 561 transitions. [2024-11-24 01:34:49,701 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 561 transitions. Word has length 110 [2024-11-24 01:34:49,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:49,701 INFO L471 AbstractCegarLoop]: Abstraction has 367 states and 561 transitions. [2024-11-24 01:34:49,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:34:49,702 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 561 transitions. [2024-11-24 01:34:49,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 01:34:49,705 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:49,705 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:34:49,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 01:34:49,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:34:49,909 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:34:49,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:49,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1693843297, now seen corresponding path program 1 times [2024-11-24 01:34:49,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:49,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428052271] [2024-11-24 01:34:49,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:49,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:49,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:50,206 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-24 01:34:50,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:50,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428052271] [2024-11-24 01:34:50,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428052271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:50,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:34:50,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:34:50,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950637446] [2024-11-24 01:34:50,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:50,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:34:50,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:50,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:34:50,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:34:50,210 INFO L87 Difference]: Start difference. First operand 367 states and 561 transitions. Second operand has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:34:50,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:50,313 INFO L93 Difference]: Finished difference Result 711 states and 1090 transitions. [2024-11-24 01:34:50,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:34:50,314 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 111 [2024-11-24 01:34:50,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:50,318 INFO L225 Difference]: With dead ends: 711 [2024-11-24 01:34:50,318 INFO L226 Difference]: Without dead ends: 367 [2024-11-24 01:34:50,323 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 01:34:50,324 INFO L435 NwaCegarLoop]: 461 mSDtfsCounter, 2 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1833 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:34:50,324 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1833 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:34:50,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-24 01:34:50,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 367. [2024-11-24 01:34:50,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 285 states have (on average 1.5263157894736843) internal successors, (435), 289 states have internal predecessors, (435), 61 states have call successors, (61), 19 states have call predecessors, (61), 20 states have return successors, (64), 58 states have call predecessors, (64), 58 states have call successors, (64) [2024-11-24 01:34:50,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 560 transitions. [2024-11-24 01:34:50,363 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 560 transitions. Word has length 111 [2024-11-24 01:34:50,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:50,364 INFO L471 AbstractCegarLoop]: Abstraction has 367 states and 560 transitions. [2024-11-24 01:34:50,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:34:50,364 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 560 transitions. [2024-11-24 01:34:50,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-24 01:34:50,369 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:50,370 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:34:50,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:34:50,370 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:34:50,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:50,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1151539788, now seen corresponding path program 2 times [2024-11-24 01:34:50,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:50,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413932724] [2024-11-24 01:34:50,371 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:34:50,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:50,440 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:34:50,445 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:34:50,630 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-24 01:34:50,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:50,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413932724] [2024-11-24 01:34:50,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413932724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:50,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:34:50,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:34:50,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384010374] [2024-11-24 01:34:50,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:50,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:34:50,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:50,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:34:50,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:34:50,633 INFO L87 Difference]: Start difference. First operand 367 states and 560 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:34:50,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:50,734 INFO L93 Difference]: Finished difference Result 709 states and 1085 transitions. [2024-11-24 01:34:50,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:34:50,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 112 [2024-11-24 01:34:50,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:50,739 INFO L225 Difference]: With dead ends: 709 [2024-11-24 01:34:50,740 INFO L226 Difference]: Without dead ends: 367 [2024-11-24 01:34:50,742 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 01:34:50,744 INFO L435 NwaCegarLoop]: 459 mSDtfsCounter, 2 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1819 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:34:50,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1819 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:34:50,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-24 01:34:50,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 367. [2024-11-24 01:34:50,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 285 states have (on average 1.5263157894736843) internal successors, (435), 289 states have internal predecessors, (435), 61 states have call successors, (61), 19 states have call predecessors, (61), 20 states have return successors, (63), 58 states have call predecessors, (63), 58 states have call successors, (63) [2024-11-24 01:34:50,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 559 transitions. [2024-11-24 01:34:50,782 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 559 transitions. Word has length 112 [2024-11-24 01:34:50,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:50,783 INFO L471 AbstractCegarLoop]: Abstraction has 367 states and 559 transitions. [2024-11-24 01:34:50,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:34:50,783 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 559 transitions. [2024-11-24 01:34:50,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-24 01:34:50,791 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:50,791 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-24 01:34:50,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:34:50,791 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:34:50,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:50,792 INFO L85 PathProgramCache]: Analyzing trace with hash -2083587997, now seen corresponding path program 3 times [2024-11-24 01:34:50,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:50,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922103466] [2024-11-24 01:34:50,792 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 01:34:50,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:50,858 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-24 01:34:50,858 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:34:51,135 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-24 01:34:51,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:51,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922103466] [2024-11-24 01:34:51,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922103466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:51,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:34:51,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:34:51,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049359407] [2024-11-24 01:34:51,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:51,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:34:51,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:51,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:34:51,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:34:51,140 INFO L87 Difference]: Start difference. First operand 367 states and 559 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:34:51,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:51,725 INFO L93 Difference]: Finished difference Result 848 states and 1230 transitions. [2024-11-24 01:34:51,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:34:51,726 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 113 [2024-11-24 01:34:51,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:51,732 INFO L225 Difference]: With dead ends: 848 [2024-11-24 01:34:51,733 INFO L226 Difference]: Without dead ends: 693 [2024-11-24 01:34:51,735 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:34:51,736 INFO L435 NwaCegarLoop]: 715 mSDtfsCounter, 686 mSDsluCounter, 2185 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 2900 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:34:51,736 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 2900 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:34:51,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-11-24 01:34:51,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 683. [2024-11-24 01:34:51,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 537 states have (on average 1.4804469273743017) internal successors, (795), 544 states have internal predecessors, (795), 99 states have call successors, (99), 41 states have call predecessors, (99), 46 states have return successors, (108), 97 states have call predecessors, (108), 94 states have call successors, (108) [2024-11-24 01:34:51,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 1002 transitions. [2024-11-24 01:34:51,811 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 1002 transitions. Word has length 113 [2024-11-24 01:34:51,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:51,811 INFO L471 AbstractCegarLoop]: Abstraction has 683 states and 1002 transitions. [2024-11-24 01:34:51,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:34:51,812 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 1002 transitions. [2024-11-24 01:34:51,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-24 01:34:51,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:51,816 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-24 01:34:51,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:34:51,816 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:34:51,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:51,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1017396629, now seen corresponding path program 1 times [2024-11-24 01:34:51,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:51,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985207364] [2024-11-24 01:34:51,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:51,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:51,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:52,086 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-24 01:34:52,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:52,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985207364] [2024-11-24 01:34:52,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985207364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:52,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:34:52,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:34:52,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818672911] [2024-11-24 01:34:52,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:52,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:34:52,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:52,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:34:52,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:34:52,090 INFO L87 Difference]: Start difference. First operand 683 states and 1002 transitions. Second operand has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:34:52,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:52,197 INFO L93 Difference]: Finished difference Result 1345 states and 1977 transitions. [2024-11-24 01:34:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:34:52,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 114 [2024-11-24 01:34:52,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:52,206 INFO L225 Difference]: With dead ends: 1345 [2024-11-24 01:34:52,206 INFO L226 Difference]: Without dead ends: 685 [2024-11-24 01:34:52,209 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 01:34:52,210 INFO L435 NwaCegarLoop]: 462 mSDtfsCounter, 1 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1836 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:34:52,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1836 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:34:52,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2024-11-24 01:34:52,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 685. [2024-11-24 01:34:52,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 538 states have (on average 1.479553903345725) internal successors, (796), 546 states have internal predecessors, (796), 99 states have call successors, (99), 41 states have call predecessors, (99), 47 states have return successors, (110), 97 states have call predecessors, (110), 94 states have call successors, (110) [2024-11-24 01:34:52,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 1005 transitions. [2024-11-24 01:34:52,295 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 1005 transitions. Word has length 114 [2024-11-24 01:34:52,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:52,295 INFO L471 AbstractCegarLoop]: Abstraction has 685 states and 1005 transitions. [2024-11-24 01:34:52,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:34:52,296 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 1005 transitions. [2024-11-24 01:34:52,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-24 01:34:52,299 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:52,299 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:34:52,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:34:52,300 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:34:52,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:52,300 INFO L85 PathProgramCache]: Analyzing trace with hash 285064615, now seen corresponding path program 1 times [2024-11-24 01:34:52,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:52,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363060388] [2024-11-24 01:34:52,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:52,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:52,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:52,557 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-24 01:34:52,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:52,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363060388] [2024-11-24 01:34:52,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363060388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:52,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:34:52,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:34:52,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739809191] [2024-11-24 01:34:52,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:52,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:34:52,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:52,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:34:52,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:34:52,560 INFO L87 Difference]: Start difference. First operand 685 states and 1005 transitions. Second operand has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-24 01:34:52,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:52,853 INFO L93 Difference]: Finished difference Result 1350 states and 1986 transitions. [2024-11-24 01:34:52,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:34:52,854 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 115 [2024-11-24 01:34:52,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:52,861 INFO L225 Difference]: With dead ends: 1350 [2024-11-24 01:34:52,861 INFO L226 Difference]: Without dead ends: 690 [2024-11-24 01:34:52,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:34:52,866 INFO L435 NwaCegarLoop]: 454 mSDtfsCounter, 5 mSDsluCounter, 2695 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3149 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:34:52,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3149 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:34:52,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-24 01:34:52,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 690. [2024-11-24 01:34:52,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 542 states have (on average 1.477859778597786) internal successors, (801), 550 states have internal predecessors, (801), 99 states have call successors, (99), 42 states have call predecessors, (99), 48 states have return successors, (115), 97 states have call predecessors, (115), 94 states have call successors, (115) [2024-11-24 01:34:52,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1015 transitions. [2024-11-24 01:34:52,922 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1015 transitions. Word has length 115 [2024-11-24 01:34:52,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:52,922 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 1015 transitions. [2024-11-24 01:34:52,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-24 01:34:52,923 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1015 transitions. [2024-11-24 01:34:52,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-24 01:34:52,926 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:52,927 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:34:52,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:34:52,927 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:34:52,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:52,928 INFO L85 PathProgramCache]: Analyzing trace with hash -215454963, now seen corresponding path program 1 times [2024-11-24 01:34:52,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:52,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146915591] [2024-11-24 01:34:52,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:52,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:53,175 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-24 01:34:53,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:53,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146915591] [2024-11-24 01:34:53,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146915591] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:34:53,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719521267] [2024-11-24 01:34:53,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:53,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:34:53,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:34:53,179 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:34:53,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 01:34:53,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:53,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:34:53,627 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:34:53,662 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-24 01:34:53,662 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:34:53,814 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-24 01:34:53,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719521267] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:34:53,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:34:53,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-24 01:34:53,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903541255] [2024-11-24 01:34:53,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:34:53,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:34:53,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:53,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:34:53,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:34:53,817 INFO L87 Difference]: Start difference. First operand 690 states and 1015 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:34:54,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:54,158 INFO L93 Difference]: Finished difference Result 1550 states and 2327 transitions. [2024-11-24 01:34:54,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:34:54,159 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 116 [2024-11-24 01:34:54,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:54,170 INFO L225 Difference]: With dead ends: 1550 [2024-11-24 01:34:54,170 INFO L226 Difference]: Without dead ends: 1072 [2024-11-24 01:34:54,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 229 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 01:34:54,176 INFO L435 NwaCegarLoop]: 495 mSDtfsCounter, 416 mSDsluCounter, 1620 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 2115 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:34:54,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 2115 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:34:54,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2024-11-24 01:34:54,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1012. [2024-11-24 01:34:54,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 800 states have (on average 1.54125) internal successors, (1233), 808 states have internal predecessors, (1233), 163 states have call successors, (163), 42 states have call predecessors, (163), 48 states have return successors, (189), 161 states have call predecessors, (189), 158 states have call successors, (189) [2024-11-24 01:34:54,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1585 transitions. [2024-11-24 01:34:54,274 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1585 transitions. Word has length 116 [2024-11-24 01:34:54,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:54,275 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1585 transitions. [2024-11-24 01:34:54,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:34:54,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1585 transitions. [2024-11-24 01:34:54,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-24 01:34:54,282 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:54,282 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:34:54,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-24 01:34:54,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-24 01:34:54,483 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:34:54,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:54,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1971967944, now seen corresponding path program 1 times [2024-11-24 01:34:54,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:54,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139635697] [2024-11-24 01:34:54,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:54,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:54,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:54,603 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-24 01:34:54,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:54,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139635697] [2024-11-24 01:34:54,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139635697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:54,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:34:54,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:34:54,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918373809] [2024-11-24 01:34:54,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:54,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:34:54,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:54,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:34:54,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:34:54,606 INFO L87 Difference]: Start difference. First operand 1012 states and 1585 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:34:54,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:54,711 INFO L93 Difference]: Finished difference Result 2293 states and 3647 transitions. [2024-11-24 01:34:54,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:34:54,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2024-11-24 01:34:54,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:54,725 INFO L225 Difference]: With dead ends: 2293 [2024-11-24 01:34:54,725 INFO L226 Difference]: Without dead ends: 1350 [2024-11-24 01:34:54,730 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 01:34:54,732 INFO L435 NwaCegarLoop]: 478 mSDtfsCounter, 105 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 943 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 01:34:54,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 943 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:34:54,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2024-11-24 01:34:54,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 1330. [2024-11-24 01:34:54,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 1054 states have (on average 1.5664136622390892) internal successors, (1651), 1062 states have internal predecessors, (1651), 227 states have call successors, (227), 42 states have call predecessors, (227), 48 states have return successors, (263), 225 states have call predecessors, (263), 222 states have call successors, (263) [2024-11-24 01:34:54,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 2141 transitions. [2024-11-24 01:34:54,868 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 2141 transitions. Word has length 123 [2024-11-24 01:34:54,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:54,869 INFO L471 AbstractCegarLoop]: Abstraction has 1330 states and 2141 transitions. [2024-11-24 01:34:54,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:34:54,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 2141 transitions. [2024-11-24 01:34:54,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-24 01:34:54,881 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:54,881 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:34:54,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 01:34:54,882 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:34:54,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:54,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1676772811, now seen corresponding path program 1 times [2024-11-24 01:34:54,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:54,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834017585] [2024-11-24 01:34:54,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:54,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:55,015 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-24 01:34:55,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:55,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834017585] [2024-11-24 01:34:55,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834017585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:55,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:34:55,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:34:55,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926163852] [2024-11-24 01:34:55,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:55,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:34:55,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:55,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:34:55,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:34:55,020 INFO L87 Difference]: Start difference. First operand 1330 states and 2141 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:34:55,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:55,197 INFO L93 Difference]: Finished difference Result 3056 states and 4963 transitions. [2024-11-24 01:34:55,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:34:55,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2024-11-24 01:34:55,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:55,213 INFO L225 Difference]: With dead ends: 3056 [2024-11-24 01:34:55,213 INFO L226 Difference]: Without dead ends: 1846 [2024-11-24 01:34:55,221 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 01:34:55,222 INFO L435 NwaCegarLoop]: 469 mSDtfsCounter, 103 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 930 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 01:34:55,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 930 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:34:55,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2024-11-24 01:34:55,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1826. [2024-11-24 01:34:55,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1826 states, 1455 states have (on average 1.5876288659793814) internal successors, (2310), 1463 states have internal predecessors, (2310), 322 states have call successors, (322), 42 states have call predecessors, (322), 48 states have return successors, (358), 320 states have call predecessors, (358), 317 states have call successors, (358) [2024-11-24 01:34:55,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1826 states to 1826 states and 2990 transitions. [2024-11-24 01:34:55,428 INFO L78 Accepts]: Start accepts. Automaton has 1826 states and 2990 transitions. Word has length 124 [2024-11-24 01:34:55,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:55,428 INFO L471 AbstractCegarLoop]: Abstraction has 1826 states and 2990 transitions. [2024-11-24 01:34:55,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:34:55,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1826 states and 2990 transitions. [2024-11-24 01:34:55,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-24 01:34:55,443 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:55,443 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:34:55,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:34:55,444 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:34:55,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:55,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1861486666, now seen corresponding path program 1 times [2024-11-24 01:34:55,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:55,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527603768] [2024-11-24 01:34:55,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:55,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:55,547 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-24 01:34:55,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:55,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527603768] [2024-11-24 01:34:55,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527603768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:55,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:34:55,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:34:55,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466968249] [2024-11-24 01:34:55,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:55,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:34:55,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:55,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:34:55,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:34:55,551 INFO L87 Difference]: Start difference. First operand 1826 states and 2990 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:34:55,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:55,731 INFO L93 Difference]: Finished difference Result 4180 states and 6910 transitions. [2024-11-24 01:34:55,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:34:55,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 125 [2024-11-24 01:34:55,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:55,754 INFO L225 Difference]: With dead ends: 4180 [2024-11-24 01:34:55,754 INFO L226 Difference]: Without dead ends: 2595 [2024-11-24 01:34:55,764 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 01:34:55,765 INFO L435 NwaCegarLoop]: 467 mSDtfsCounter, 101 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 925 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 01:34:55,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 925 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:34:55,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2595 states. [2024-11-24 01:34:55,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2595 to 2575. [2024-11-24 01:34:56,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2575 states, 2081 states have (on average 1.605478135511773) internal successors, (3341), 2089 states have internal predecessors, (3341), 445 states have call successors, (445), 42 states have call predecessors, (445), 48 states have return successors, (497), 443 states have call predecessors, (497), 440 states have call successors, (497) [2024-11-24 01:34:56,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2575 states to 2575 states and 4283 transitions. [2024-11-24 01:34:56,032 INFO L78 Accepts]: Start accepts. Automaton has 2575 states and 4283 transitions. Word has length 125 [2024-11-24 01:34:56,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:56,035 INFO L471 AbstractCegarLoop]: Abstraction has 2575 states and 4283 transitions. [2024-11-24 01:34:56,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:34:56,035 INFO L276 IsEmpty]: Start isEmpty. Operand 2575 states and 4283 transitions. [2024-11-24 01:34:56,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-24 01:34:56,051 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:56,052 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:34:56,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:34:56,052 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:34:56,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:56,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1901283476, now seen corresponding path program 1 times [2024-11-24 01:34:56,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:56,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225127420] [2024-11-24 01:34:56,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:56,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:56,158 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-24 01:34:56,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:56,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225127420] [2024-11-24 01:34:56,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225127420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:56,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:34:56,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:34:56,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33805464] [2024-11-24 01:34:56,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:56,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:34:56,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:56,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:34:56,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:34:56,161 INFO L87 Difference]: Start difference. First operand 2575 states and 4283 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:34:56,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:56,399 INFO L93 Difference]: Finished difference Result 5928 states and 9941 transitions. [2024-11-24 01:34:56,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:34:56,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 126 [2024-11-24 01:34:56,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:56,430 INFO L225 Difference]: With dead ends: 5928 [2024-11-24 01:34:56,430 INFO L226 Difference]: Without dead ends: 3791 [2024-11-24 01:34:56,439 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 01:34:56,440 INFO L435 NwaCegarLoop]: 467 mSDtfsCounter, 99 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 925 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 01:34:56,440 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 925 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:34:56,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3791 states. [2024-11-24 01:34:56,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3791 to 3771. [2024-11-24 01:34:56,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3771 states, 3098 states have (on average 1.618786313750807) internal successors, (5015), 3106 states have internal predecessors, (5015), 624 states have call successors, (624), 42 states have call predecessors, (624), 48 states have return successors, (702), 622 states have call predecessors, (702), 619 states have call successors, (702) [2024-11-24 01:34:56,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3771 states to 3771 states and 6341 transitions. [2024-11-24 01:34:56,798 INFO L78 Accepts]: Start accepts. Automaton has 3771 states and 6341 transitions. Word has length 126 [2024-11-24 01:34:56,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:56,799 INFO L471 AbstractCegarLoop]: Abstraction has 3771 states and 6341 transitions. [2024-11-24 01:34:56,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:34:56,799 INFO L276 IsEmpty]: Start isEmpty. Operand 3771 states and 6341 transitions. [2024-11-24 01:34:56,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-24 01:34:56,823 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:56,823 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:34:56,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:34:56,823 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:34:56,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:56,824 INFO L85 PathProgramCache]: Analyzing trace with hash -2144772134, now seen corresponding path program 1 times [2024-11-24 01:34:56,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:56,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916466771] [2024-11-24 01:34:56,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:56,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:56,958 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-24 01:34:56,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:56,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916466771] [2024-11-24 01:34:56,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916466771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:56,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:34:56,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:34:56,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782452289] [2024-11-24 01:34:56,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:56,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:34:56,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:56,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:34:56,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:34:56,961 INFO L87 Difference]: Start difference. First operand 3771 states and 6341 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:34:57,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:57,396 INFO L93 Difference]: Finished difference Result 8799 states and 14911 transitions. [2024-11-24 01:34:57,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:34:57,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2024-11-24 01:34:57,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:57,441 INFO L225 Difference]: With dead ends: 8799 [2024-11-24 01:34:57,441 INFO L226 Difference]: Without dead ends: 5767 [2024-11-24 01:34:57,457 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 01:34:57,458 INFO L435 NwaCegarLoop]: 472 mSDtfsCounter, 97 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 928 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 01:34:57,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 928 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:34:57,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5767 states. [2024-11-24 01:34:57,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5767 to 5747. [2024-11-24 01:34:57,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5747 states, 4698 states have (on average 1.6202639421030225) internal successors, (7612), 4706 states have internal predecessors, (7612), 1000 states have call successors, (1000), 42 states have call predecessors, (1000), 48 states have return successors, (1122), 998 states have call predecessors, (1122), 995 states have call successors, (1122) [2024-11-24 01:34:58,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5747 states to 5747 states and 9734 transitions. [2024-11-24 01:34:58,007 INFO L78 Accepts]: Start accepts. Automaton has 5747 states and 9734 transitions. Word has length 127 [2024-11-24 01:34:58,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:58,007 INFO L471 AbstractCegarLoop]: Abstraction has 5747 states and 9734 transitions. [2024-11-24 01:34:58,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:34:58,008 INFO L276 IsEmpty]: Start isEmpty. Operand 5747 states and 9734 transitions. [2024-11-24 01:34:58,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-24 01:34:58,042 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:58,042 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:34:58,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 01:34:58,043 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:34:58,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:58,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1646933904, now seen corresponding path program 1 times [2024-11-24 01:34:58,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:58,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371722633] [2024-11-24 01:34:58,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:58,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:58,142 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-24 01:34:58,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:58,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371722633] [2024-11-24 01:34:58,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371722633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:58,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:34:58,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:34:58,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492476338] [2024-11-24 01:34:58,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:58,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:34:58,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:58,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:34:58,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:34:58,147 INFO L87 Difference]: Start difference. First operand 5747 states and 9734 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:34:58,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:58,569 INFO L93 Difference]: Finished difference Result 14003 states and 23888 transitions. [2024-11-24 01:34:58,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:34:58,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 128 [2024-11-24 01:34:58,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:58,650 INFO L225 Difference]: With dead ends: 14003 [2024-11-24 01:34:58,651 INFO L226 Difference]: Without dead ends: 9356 [2024-11-24 01:34:58,721 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 01:34:58,723 INFO L435 NwaCegarLoop]: 467 mSDtfsCounter, 95 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 928 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 01:34:58,723 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 928 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:34:58,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9356 states. [2024-11-24 01:34:59,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9356 to 9336. [2024-11-24 01:34:59,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9336 states, 7681 states have (on average 1.622705376904049) internal successors, (12464), 7689 states have internal predecessors, (12464), 1606 states have call successors, (1606), 42 states have call predecessors, (1606), 48 states have return successors, (1806), 1604 states have call predecessors, (1806), 1601 states have call successors, (1806) [2024-11-24 01:34:59,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9336 states to 9336 states and 15876 transitions. [2024-11-24 01:34:59,476 INFO L78 Accepts]: Start accepts. Automaton has 9336 states and 15876 transitions. Word has length 128 [2024-11-24 01:34:59,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:59,479 INFO L471 AbstractCegarLoop]: Abstraction has 9336 states and 15876 transitions. [2024-11-24 01:34:59,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:34:59,480 INFO L276 IsEmpty]: Start isEmpty. Operand 9336 states and 15876 transitions. [2024-11-24 01:34:59,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-24 01:34:59,529 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:59,529 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:34:59,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 01:34:59,529 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:34:59,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:59,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1022250124, now seen corresponding path program 1 times [2024-11-24 01:34:59,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:59,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737251922] [2024-11-24 01:34:59,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:59,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:59,657 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-24 01:34:59,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:59,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737251922] [2024-11-24 01:34:59,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737251922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:59,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:34:59,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:34:59,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504552227] [2024-11-24 01:34:59,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:59,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:34:59,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:59,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:34:59,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:34:59,661 INFO L87 Difference]: Start difference. First operand 9336 states and 15876 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:35:00,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:35:00,505 INFO L93 Difference]: Finished difference Result 23949 states and 40915 transitions. [2024-11-24 01:35:00,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:35:00,505 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 129 [2024-11-24 01:35:00,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:35:00,601 INFO L225 Difference]: With dead ends: 23949 [2024-11-24 01:35:00,601 INFO L226 Difference]: Without dead ends: 16143 [2024-11-24 01:35:00,636 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 01:35:00,637 INFO L435 NwaCegarLoop]: 477 mSDtfsCounter, 93 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 941 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 01:35:00,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 941 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:35:00,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16143 states. [2024-11-24 01:35:01,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16143 to 16123. [2024-11-24 01:35:01,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16123 states, 13265 states have (on average 1.6162834526950622) internal successors, (21440), 13273 states have internal predecessors, (21440), 2809 states have call successors, (2809), 42 states have call predecessors, (2809), 48 states have return successors, (3153), 2807 states have call predecessors, (3153), 2804 states have call successors, (3153) [2024-11-24 01:35:01,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16123 states to 16123 states and 27402 transitions. [2024-11-24 01:35:01,740 INFO L78 Accepts]: Start accepts. Automaton has 16123 states and 27402 transitions. Word has length 129 [2024-11-24 01:35:01,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:35:01,740 INFO L471 AbstractCegarLoop]: Abstraction has 16123 states and 27402 transitions. [2024-11-24 01:35:01,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:35:01,741 INFO L276 IsEmpty]: Start isEmpty. Operand 16123 states and 27402 transitions. [2024-11-24 01:35:01,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-24 01:35:01,801 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:35:01,803 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:35:01,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 01:35:01,803 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:35:01,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:35:01,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1240833617, now seen corresponding path program 1 times [2024-11-24 01:35:01,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:35:01,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091591894] [2024-11-24 01:35:01,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:35:01,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:35:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:35:01,905 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-24 01:35:01,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:35:01,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091591894] [2024-11-24 01:35:01,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091591894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:35:01,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:35:01,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:35:01,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753969354] [2024-11-24 01:35:01,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:35:01,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:35:01,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:35:01,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:35:01,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:35:01,910 INFO L87 Difference]: Start difference. First operand 16123 states and 27402 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:35:03,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:35:03,368 INFO L93 Difference]: Finished difference Result 42475 states and 72534 transitions. [2024-11-24 01:35:03,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:35:03,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 130 [2024-11-24 01:35:03,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:35:03,569 INFO L225 Difference]: With dead ends: 42475 [2024-11-24 01:35:03,569 INFO L226 Difference]: Without dead ends: 28495 [2024-11-24 01:35:03,637 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 01:35:03,638 INFO L435 NwaCegarLoop]: 467 mSDtfsCounter, 91 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 928 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 01:35:03,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 928 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:35:03,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28495 states. [2024-11-24 01:35:05,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28495 to 28475. [2024-11-24 01:35:05,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28475 states, 23578 states have (on average 1.6134108066841972) internal successors, (38041), 23586 states have internal predecessors, (38041), 4848 states have call successors, (4848), 42 states have call predecessors, (4848), 48 states have return successors, (5466), 4846 states have call predecessors, (5466), 4843 states have call successors, (5466) [2024-11-24 01:35:05,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28475 states to 28475 states and 48355 transitions. [2024-11-24 01:35:05,682 INFO L78 Accepts]: Start accepts. Automaton has 28475 states and 48355 transitions. Word has length 130 [2024-11-24 01:35:05,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:35:05,683 INFO L471 AbstractCegarLoop]: Abstraction has 28475 states and 48355 transitions. [2024-11-24 01:35:05,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:35:05,684 INFO L276 IsEmpty]: Start isEmpty. Operand 28475 states and 48355 transitions. [2024-11-24 01:35:05,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-24 01:35:05,743 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:35:05,743 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:35:05,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 01:35:05,744 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:35:05,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:35:05,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1751465802, now seen corresponding path program 1 times [2024-11-24 01:35:05,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:35:05,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651059857] [2024-11-24 01:35:05,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:35:05,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:35:05,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:35:05,834 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-24 01:35:05,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:35:05,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651059857] [2024-11-24 01:35:05,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651059857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:35:05,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:35:05,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:35:05,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729808157] [2024-11-24 01:35:05,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:35:05,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:35:05,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:35:05,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:35:05,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:35:05,837 INFO L87 Difference]: Start difference. First operand 28475 states and 48355 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:35:07,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:35:07,612 INFO L93 Difference]: Finished difference Result 77402 states and 131926 transitions. [2024-11-24 01:35:07,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:35:07,613 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), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 131 [2024-11-24 01:35:07,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:35:07,933 INFO L225 Difference]: With dead ends: 77402 [2024-11-24 01:35:07,933 INFO L226 Difference]: Without dead ends: 51805 [2024-11-24 01:35:08,025 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 01:35:08,026 INFO L435 NwaCegarLoop]: 470 mSDtfsCounter, 89 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 931 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 01:35:08,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 931 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:35:08,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51805 states. [2024-11-24 01:35:11,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51805 to 51785. [2024-11-24 01:35:11,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51785 states, 43173 states have (on average 1.608435827948023) internal successors, (69441), 43181 states have internal predecessors, (69441), 8563 states have call successors, (8563), 42 states have call predecessors, (8563), 48 states have return successors, (9713), 8561 states have call predecessors, (9713), 8558 states have call successors, (9713) [2024-11-24 01:35:11,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51785 states to 51785 states and 87717 transitions. [2024-11-24 01:35:11,989 INFO L78 Accepts]: Start accepts. Automaton has 51785 states and 87717 transitions. Word has length 131 [2024-11-24 01:35:11,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:35:11,989 INFO L471 AbstractCegarLoop]: Abstraction has 51785 states and 87717 transitions. [2024-11-24 01:35:11,990 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), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:35:11,990 INFO L276 IsEmpty]: Start isEmpty. Operand 51785 states and 87717 transitions. [2024-11-24 01:35:12,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-24 01:35:12,050 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:35:12,050 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:35:12,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 01:35:12,051 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:35:12,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:35:12,052 INFO L85 PathProgramCache]: Analyzing trace with hash -580810065, now seen corresponding path program 1 times [2024-11-24 01:35:12,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:35:12,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676675037] [2024-11-24 01:35:12,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:35:12,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:35:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:35:12,150 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-24 01:35:12,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:35:12,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676675037] [2024-11-24 01:35:12,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676675037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:35:12,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:35:12,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:35:12,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294926937] [2024-11-24 01:35:12,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:35:12,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:35:12,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:35:12,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:35:12,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:35:12,155 INFO L87 Difference]: Start difference. First operand 51785 states and 87717 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:35:15,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:35:15,096 INFO L93 Difference]: Finished difference Result 96654 states and 164025 transitions. [2024-11-24 01:35:15,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:35:15,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 132 [2024-11-24 01:35:15,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:35:15,868 INFO L225 Difference]: With dead ends: 96654 [2024-11-24 01:35:15,869 INFO L226 Difference]: Without dead ends: 96176 [2024-11-24 01:35:15,906 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 01:35:15,909 INFO L435 NwaCegarLoop]: 469 mSDtfsCounter, 84 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:35:15,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 934 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:35:15,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96176 states. [2024-11-24 01:35:19,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96176 to 96156. [2024-11-24 01:35:20,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96156 states, 80745 states have (on average 1.6016223914793486) internal successors, (129323), 80753 states have internal predecessors, (129323), 15362 states have call successors, (15362), 42 states have call predecessors, (15362), 48 states have return successors, (17558), 15360 states have call predecessors, (17558), 15357 states have call successors, (17558) [2024-11-24 01:35:20,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96156 states to 96156 states and 162243 transitions. [2024-11-24 01:35:20,407 INFO L78 Accepts]: Start accepts. Automaton has 96156 states and 162243 transitions. Word has length 132 [2024-11-24 01:35:20,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:35:20,408 INFO L471 AbstractCegarLoop]: Abstraction has 96156 states and 162243 transitions. [2024-11-24 01:35:20,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:35:20,408 INFO L276 IsEmpty]: Start isEmpty. Operand 96156 states and 162243 transitions. [2024-11-24 01:35:20,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-24 01:35:20,476 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:35:20,476 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:35:20,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 01:35:20,477 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:35:20,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:35:20,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1567458955, now seen corresponding path program 1 times [2024-11-24 01:35:20,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:35:20,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435118683] [2024-11-24 01:35:20,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:35:20,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:35:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:35:21,578 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-24 01:35:21,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:35:21,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435118683] [2024-11-24 01:35:21,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435118683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:35:21,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:35:21,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 01:35:21,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487711186] [2024-11-24 01:35:21,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:35:21,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:35:21,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:35:21,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:35:21,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:35:21,583 INFO L87 Difference]: Start difference. First operand 96156 states and 162243 transitions. Second operand has 11 states, 9 states have (on average 10.11111111111111) internal successors, (91), 10 states have internal predecessors, (91), 6 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-24 01:35:24,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:35:24,835 INFO L93 Difference]: Finished difference Result 96712 states and 163033 transitions. [2024-11-24 01:35:24,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:35:24,836 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 10.11111111111111) internal successors, (91), 10 states have internal predecessors, (91), 6 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) Word has length 133 [2024-11-24 01:35:24,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:35:25,305 INFO L225 Difference]: With dead ends: 96712 [2024-11-24 01:35:25,306 INFO L226 Difference]: Without dead ends: 96120 [2024-11-24 01:35:25,345 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:35:25,347 INFO L435 NwaCegarLoop]: 459 mSDtfsCounter, 125 mSDsluCounter, 4114 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 4573 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:35:25,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 4573 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:35:25,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96120 states. [2024-11-24 01:35:29,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96120 to 96112. [2024-11-24 01:35:29,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96112 states, 80710 states have (on average 1.6017346053772767) internal successors, (129276), 80718 states have internal predecessors, (129276), 15356 states have call successors, (15356), 41 states have call predecessors, (15356), 45 states have return successors, (17551), 15352 states have call predecessors, (17551), 15352 states have call successors, (17551) [2024-11-24 01:35:30,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96112 states to 96112 states and 162183 transitions. [2024-11-24 01:35:30,186 INFO L78 Accepts]: Start accepts. Automaton has 96112 states and 162183 transitions. Word has length 133 [2024-11-24 01:35:30,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:35:30,186 INFO L471 AbstractCegarLoop]: Abstraction has 96112 states and 162183 transitions. [2024-11-24 01:35:30,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 10.11111111111111) internal successors, (91), 10 states have internal predecessors, (91), 6 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-24 01:35:30,187 INFO L276 IsEmpty]: Start isEmpty. Operand 96112 states and 162183 transitions. [2024-11-24 01:35:30,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-24 01:35:30,259 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:35:30,260 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:35:30,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 01:35:30,260 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:35:30,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:35:30,261 INFO L85 PathProgramCache]: Analyzing trace with hash -835682569, now seen corresponding path program 1 times [2024-11-24 01:35:30,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:35:30,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433003506] [2024-11-24 01:35:30,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:35:30,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:35:30,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:35:31,020 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-24 01:35:31,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:35:31,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433003506] [2024-11-24 01:35:31,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433003506] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:35:31,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200552393] [2024-11-24 01:35:31,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:35:31,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:35:31,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:35:31,024 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:35:31,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e10dac-6fb9-41a4-871d-e98e4231d5f7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 01:35:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:35:31,487 INFO L256 TraceCheckSpWp]: Trace formula consists of 1120 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 01:35:31,493 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:35:31,977 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 01:35:31,978 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:35:31,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200552393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:35:31,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:35:31,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [16] total 27 [2024-11-24 01:35:31,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542952475] [2024-11-24 01:35:31,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:35:31,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:35:31,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:35:31,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:35:31,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=639, Unknown=0, NotChecked=0, Total=702 [2024-11-24 01:35:31,980 INFO L87 Difference]: Start difference. First operand 96112 states and 162183 transitions. Second operand has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 6 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-24 01:35:35,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:35:35,274 INFO L93 Difference]: Finished difference Result 96808 states and 163149 transitions. [2024-11-24 01:35:35,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 01:35:35,275 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 6 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) Word has length 136 [2024-11-24 01:35:35,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:35:35,643 INFO L225 Difference]: With dead ends: 96808 [2024-11-24 01:35:35,644 INFO L226 Difference]: Without dead ends: 96628 [2024-11-24 01:35:35,679 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=181, Invalid=1541, Unknown=0, NotChecked=0, Total=1722 [2024-11-24 01:35:35,682 INFO L435 NwaCegarLoop]: 501 mSDtfsCounter, 741 mSDsluCounter, 4841 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 5342 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:35:35,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 5342 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:35:35,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96628 states.