./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product30.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product30.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ --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 e4fb36b23f327758af91661b12ca1735faf7949901dbd5c1543c17ea0384ceb9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:42:11,253 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:42:11,367 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-23 21:42:11,377 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:42:11,378 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:42:11,419 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:42:11,420 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:42:11,421 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:42:11,422 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:42:11,427 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:42:11,428 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:42:11,428 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:42:11,429 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:42:11,431 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:42:11,431 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:42:11,432 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:42:11,432 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:42:11,432 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:42:11,433 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:42:11,433 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:42:11,434 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:42:11,434 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:42:11,435 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:42:11,435 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:42:11,435 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:42:11,436 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:42:11,436 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:42:11,437 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:42:11,437 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:42:11,437 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:42:11,439 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:42:11,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:42:11,439 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:42:11,440 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:42:11,440 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:42:11,440 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:42:11,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:42:11,440 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:42:11,441 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:42:11,441 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:42:11,441 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:42:11,441 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:42:11,442 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4fb36b23f327758af91661b12ca1735faf7949901dbd5c1543c17ea0384ceb9 [2023-11-23 21:42:11,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:42:11,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:42:11,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:42:11,787 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:42:11,787 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:42:11,789 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/product-lines/email_spec11_product30.cil.c [2023-11-23 21:42:14,969 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:42:15,355 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:42:15,355 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/sv-benchmarks/c/product-lines/email_spec11_product30.cil.c [2023-11-23 21:42:15,399 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/data/b5caf6459/20f543b2dd0d4ebaad743265d8747978/FLAGada394cfa [2023-11-23 21:42:15,414 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/data/b5caf6459/20f543b2dd0d4ebaad743265d8747978 [2023-11-23 21:42:15,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:42:15,419 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:42:15,420 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:42:15,421 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:42:15,426 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:42:15,427 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:42:15" (1/1) ... [2023-11-23 21:42:15,428 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@339a333e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:15, skipping insertion in model container [2023-11-23 21:42:15,428 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:42:15" (1/1) ... [2023-11-23 21:42:15,523 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:42:16,058 WARN L240 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_96fed0ae-385a-46a1-8d72-86ee9814eb80/sv-benchmarks/c/product-lines/email_spec11_product30.cil.c[29507,29520] [2023-11-23 21:42:16,252 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:42:16,271 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:42:16,282 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [48] [2023-11-23 21:42:16,285 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [443] [2023-11-23 21:42:16,285 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [668] [2023-11-23 21:42:16,291 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [685] [2023-11-23 21:42:16,292 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [705] [2023-11-23 21:42:16,292 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1104] [2023-11-23 21:42:16,292 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1240] [2023-11-23 21:42:16,292 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1278] [2023-11-23 21:42:16,292 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1560] [2023-11-23 21:42:16,293 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1569] [2023-11-23 21:42:16,293 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1935] [2023-11-23 21:42:16,341 WARN L240 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_96fed0ae-385a-46a1-8d72-86ee9814eb80/sv-benchmarks/c/product-lines/email_spec11_product30.cil.c[29507,29520] [2023-11-23 21:42:16,409 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:42:16,458 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:42:16,466 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:42:16,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:16 WrapperNode [2023-11-23 21:42:16,467 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:42:16,469 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:42:16,469 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:42:16,469 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:42:16,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:16" (1/1) ... [2023-11-23 21:42:16,506 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:16" (1/1) ... [2023-11-23 21:42:16,582 INFO L138 Inliner]: procedures = 131, calls = 217, calls flagged for inlining = 60, calls inlined = 50, statements flattened = 913 [2023-11-23 21:42:16,583 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:42:16,584 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:42:16,584 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:42:16,584 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:42:16,599 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:16" (1/1) ... [2023-11-23 21:42:16,603 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:16" (1/1) ... [2023-11-23 21:42:16,614 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:16" (1/1) ... [2023-11-23 21:42:16,646 INFO L189 HeapSplitter]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4] [2023-11-23 21:42:16,646 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:16" (1/1) ... [2023-11-23 21:42:16,647 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:16" (1/1) ... [2023-11-23 21:42:16,675 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:16" (1/1) ... [2023-11-23 21:42:16,686 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:16" (1/1) ... [2023-11-23 21:42:16,692 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:16" (1/1) ... [2023-11-23 21:42:16,697 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:16" (1/1) ... [2023-11-23 21:42:16,707 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:42:16,708 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:42:16,708 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:42:16,708 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:42:16,709 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:16" (1/1) ... [2023-11-23 21:42:16,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:42:16,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:42:16,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:42:16,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:42:16,815 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-11-23 21:42:16,816 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-11-23 21:42:16,816 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-23 21:42:16,816 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-23 21:42:16,816 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-23 21:42:16,817 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-23 21:42:16,818 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-23 21:42:16,818 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-23 21:42:16,818 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-23 21:42:16,818 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-23 21:42:16,819 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-23 21:42:16,819 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-23 21:42:16,819 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-23 21:42:16,820 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-23 21:42:16,820 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-23 21:42:16,820 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-23 21:42:16,821 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-23 21:42:16,823 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-23 21:42:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-23 21:42:16,824 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-23 21:42:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-23 21:42:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-23 21:42:16,824 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-23 21:42:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-23 21:42:16,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-23 21:42:16,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:42:16,826 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-23 21:42:16,826 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-23 21:42:16,826 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-11-23 21:42:16,826 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-11-23 21:42:16,826 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-23 21:42:16,827 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-23 21:42:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-23 21:42:16,827 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-23 21:42:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-23 21:42:16,827 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-23 21:42:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-11-23 21:42:16,827 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-11-23 21:42:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-23 21:42:16,828 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-23 21:42:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-23 21:42:16,828 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-23 21:42:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-23 21:42:16,828 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-23 21:42:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-23 21:42:16,829 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-23 21:42:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 21:42:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 21:42:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 21:42:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 21:42:16,831 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-23 21:42:16,832 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-23 21:42:16,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:42:16,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:42:17,110 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:42:17,113 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:42:18,196 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:42:18,304 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:42:18,306 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:42:18,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:42:18 BoogieIcfgContainer [2023-11-23 21:42:18,307 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:42:18,309 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:42:18,309 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:42:18,311 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:42:18,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:42:15" (1/3) ... [2023-11-23 21:42:18,312 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45937e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:42:18, skipping insertion in model container [2023-11-23 21:42:18,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:16" (2/3) ... [2023-11-23 21:42:18,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45937e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:42:18, skipping insertion in model container [2023-11-23 21:42:18,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:42:18" (3/3) ... [2023-11-23 21:42:18,314 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product30.cil.c [2023-11-23 21:42:18,336 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:42:18,337 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:42:18,417 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:42:18,423 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@23d4c275, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:42:18,424 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:42:18,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 317 states, 240 states have (on average 1.575) internal successors, (378), 244 states have internal predecessors, (378), 52 states have call successors, (52), 23 states have call predecessors, (52), 23 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-23 21:42:18,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-23 21:42:18,456 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:18,457 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:18,458 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:18,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:18,464 INFO L85 PathProgramCache]: Analyzing trace with hash -141955028, now seen corresponding path program 1 times [2023-11-23 21:42:18,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:18,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672296373] [2023-11-23 21:42:18,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:18,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:19,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:42:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:19,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 21:42:19,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:19,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 21:42:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:19,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-23 21:42:19,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:19,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-23 21:42:19,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:19,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-23 21:42:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:19,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 21:42:19,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:19,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-23 21:42:19,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:19,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 21:42:19,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:19,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 21:42:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:19,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 21:42:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:19,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 21:42:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:19,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-23 21:42:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:19,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 21:42:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:19,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-23 21:42:19,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:19,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:19,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:19,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-23 21:42:19,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:19,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:19,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:19,466 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 21:42:19,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:19,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672296373] [2023-11-23 21:42:19,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672296373] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:42:19,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817283053] [2023-11-23 21:42:19,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:19,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:42:19,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:42:19,473 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:42:19,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:42:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:19,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 1195 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:42:19,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:42:19,926 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-23 21:42:19,926 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:42:19,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817283053] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:19,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:42:19,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-11-23 21:42:19,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421262559] [2023-11-23 21:42:19,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:19,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:42:19,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:19,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:42:19,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:42:19,994 INFO L87 Difference]: Start difference. First operand has 317 states, 240 states have (on average 1.575) internal successors, (378), 244 states have internal predecessors, (378), 52 states have call successors, (52), 23 states have call predecessors, (52), 23 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:42:20,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:20,111 INFO L93 Difference]: Finished difference Result 489 states and 727 transitions. [2023-11-23 21:42:20,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:42:20,116 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2023-11-23 21:42:20,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:20,136 INFO L225 Difference]: With dead ends: 489 [2023-11-23 21:42:20,137 INFO L226 Difference]: Without dead ends: 314 [2023-11-23 21:42:20,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:42:20,149 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:20,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 465 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:42:20,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-11-23 21:42:20,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2023-11-23 21:42:20,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 238 states have (on average 1.5588235294117647) internal successors, (371), 241 states have internal predecessors, (371), 52 states have call successors, (52), 23 states have call predecessors, (52), 23 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2023-11-23 21:42:20,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 474 transitions. [2023-11-23 21:42:20,235 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 474 transitions. Word has length 131 [2023-11-23 21:42:20,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:20,237 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 474 transitions. [2023-11-23 21:42:20,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:42:20,238 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 474 transitions. [2023-11-23 21:42:20,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-23 21:42:20,244 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:20,244 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:20,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:42:20,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 21:42:20,461 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:20,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:20,462 INFO L85 PathProgramCache]: Analyzing trace with hash -108978359, now seen corresponding path program 1 times [2023-11-23 21:42:20,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:20,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877007378] [2023-11-23 21:42:20,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:20,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:20,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:42:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:20,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 21:42:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:20,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 21:42:20,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:20,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-23 21:42:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:20,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-23 21:42:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:20,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-23 21:42:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:20,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 21:42:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:20,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 21:42:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:20,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 21:42:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:20,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 21:42:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:20,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-23 21:42:20,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:20,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 21:42:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:20,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 21:42:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:20,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-23 21:42:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:20,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 21:42:20,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:20,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:20,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:20,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-23 21:42:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:20,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:20,904 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 21:42:20,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:20,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877007378] [2023-11-23 21:42:20,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877007378] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:42:20,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409033917] [2023-11-23 21:42:20,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:20,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:42:20,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:42:20,908 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:42:20,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 21:42:21,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:21,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 1196 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:42:21,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:42:21,316 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-23 21:42:21,321 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:42:21,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409033917] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:21,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:42:21,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-23 21:42:21,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349886166] [2023-11-23 21:42:21,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:21,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:42:21,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:21,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:42:21,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:42:21,328 INFO L87 Difference]: Start difference. First operand 314 states and 474 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:42:21,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:21,436 INFO L93 Difference]: Finished difference Result 485 states and 714 transitions. [2023-11-23 21:42:21,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:42:21,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 132 [2023-11-23 21:42:21,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:21,442 INFO L225 Difference]: With dead ends: 485 [2023-11-23 21:42:21,442 INFO L226 Difference]: Without dead ends: 316 [2023-11-23 21:42:21,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:42:21,447 INFO L413 NwaCegarLoop]: 462 mSDtfsCounter, 0 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:21,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 923 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:42:21,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-11-23 21:42:21,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2023-11-23 21:42:21,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 240 states have (on average 1.5541666666666667) internal successors, (373), 243 states have internal predecessors, (373), 52 states have call successors, (52), 23 states have call predecessors, (52), 23 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2023-11-23 21:42:21,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 476 transitions. [2023-11-23 21:42:21,511 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 476 transitions. Word has length 132 [2023-11-23 21:42:21,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:21,512 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 476 transitions. [2023-11-23 21:42:21,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:42:21,513 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 476 transitions. [2023-11-23 21:42:21,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-23 21:42:21,521 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:21,523 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:21,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:42:21,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:42:21,745 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:21,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:21,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1665218676, now seen corresponding path program 1 times [2023-11-23 21:42:21,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:21,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763163344] [2023-11-23 21:42:21,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:21,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:21,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:42:21,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:21,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 21:42:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:21,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 21:42:21,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:22,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-23 21:42:22,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:22,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-23 21:42:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:22,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-23 21:42:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:22,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 21:42:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:22,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 21:42:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:22,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 21:42:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:22,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 21:42:22,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:22,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-23 21:42:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:22,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 21:42:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:22,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 21:42:22,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:22,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-23 21:42:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:22,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-23 21:42:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:22,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:22,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-23 21:42:22,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:22,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:22,107 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-23 21:42:22,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:22,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763163344] [2023-11-23 21:42:22,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763163344] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:42:22,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047504619] [2023-11-23 21:42:22,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:22,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:42:22,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:42:22,112 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:42:22,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 21:42:22,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:22,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:42:22,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:42:22,520 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-23 21:42:22,520 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:42:22,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047504619] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:22,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:42:22,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-23 21:42:22,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188845404] [2023-11-23 21:42:22,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:22,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:42:22,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:22,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:42:22,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:42:22,523 INFO L87 Difference]: Start difference. First operand 316 states and 476 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:42:22,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:22,584 INFO L93 Difference]: Finished difference Result 662 states and 1011 transitions. [2023-11-23 21:42:22,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:42:22,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2023-11-23 21:42:22,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:22,589 INFO L225 Difference]: With dead ends: 662 [2023-11-23 21:42:22,589 INFO L226 Difference]: Without dead ends: 368 [2023-11-23 21:42:22,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:42:22,592 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 102 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:22,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 895 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:42:22,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-11-23 21:42:22,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 363. [2023-11-23 21:42:22,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 276 states have (on average 1.568840579710145) internal successors, (433), 279 states have internal predecessors, (433), 63 states have call successors, (63), 23 states have call predecessors, (63), 23 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-11-23 21:42:22,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 558 transitions. [2023-11-23 21:42:22,631 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 558 transitions. Word has length 139 [2023-11-23 21:42:22,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:22,631 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 558 transitions. [2023-11-23 21:42:22,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:42:22,640 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 558 transitions. [2023-11-23 21:42:22,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-23 21:42:22,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:22,645 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:22,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:42:22,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:42:22,867 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:22,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:22,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1009425927, now seen corresponding path program 1 times [2023-11-23 21:42:22,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:22,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283225806] [2023-11-23 21:42:22,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:22,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:23,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:42:23,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:23,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 21:42:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:23,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 21:42:23,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:23,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-23 21:42:23,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:23,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-23 21:42:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:23,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-23 21:42:23,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:23,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 21:42:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:23,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 21:42:23,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:23,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 21:42:23,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:23,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 21:42:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:23,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-23 21:42:23,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:23,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 21:42:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:23,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-23 21:42:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:23,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 21:42:23,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:23,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 21:42:23,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:23,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:23,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:23,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-23 21:42:23,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:23,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:23,236 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-23 21:42:23,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:23,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283225806] [2023-11-23 21:42:23,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283225806] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:42:23,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816014191] [2023-11-23 21:42:23,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:23,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:42:23,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:42:23,239 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:42:23,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 21:42:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:23,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 1225 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:42:23,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:42:23,688 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-23 21:42:23,688 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:42:23,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816014191] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:23,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:42:23,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-11-23 21:42:23,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017596383] [2023-11-23 21:42:23,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:23,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:42:23,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:23,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:42:23,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-23 21:42:23,692 INFO L87 Difference]: Start difference. First operand 363 states and 558 transitions. Second operand has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-23 21:42:23,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:23,831 INFO L93 Difference]: Finished difference Result 721 states and 1110 transitions. [2023-11-23 21:42:23,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:42:23,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 140 [2023-11-23 21:42:23,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:23,839 INFO L225 Difference]: With dead ends: 721 [2023-11-23 21:42:23,839 INFO L226 Difference]: Without dead ends: 365 [2023-11-23 21:42:23,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-23 21:42:23,844 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 8 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1801 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:23,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1801 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:42:23,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2023-11-23 21:42:23,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2023-11-23 21:42:23,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 277 states have (on average 1.5667870036101084) internal successors, (434), 281 states have internal predecessors, (434), 63 states have call successors, (63), 23 states have call predecessors, (63), 24 states have return successors, (64), 62 states have call predecessors, (64), 62 states have call successors, (64) [2023-11-23 21:42:23,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 561 transitions. [2023-11-23 21:42:23,896 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 561 transitions. Word has length 140 [2023-11-23 21:42:23,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:23,899 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 561 transitions. [2023-11-23 21:42:23,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-23 21:42:23,900 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 561 transitions. [2023-11-23 21:42:23,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-23 21:42:23,905 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:23,905 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:23,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:42:24,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:42:24,120 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:24,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:24,121 INFO L85 PathProgramCache]: Analyzing trace with hash 540716700, now seen corresponding path program 1 times [2023-11-23 21:42:24,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:24,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423746142] [2023-11-23 21:42:24,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:24,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:24,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:24,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:42:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:24,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 21:42:24,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:24,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 21:42:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:24,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 21:42:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:24,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-23 21:42:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:24,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-23 21:42:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:24,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 21:42:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:24,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 21:42:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:24,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-23 21:42:24,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:24,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 21:42:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:24,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 21:42:24,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:24,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 21:42:24,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:24,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-23 21:42:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:24,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 21:42:24,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:24,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-23 21:42:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:24,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:24,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 21:42:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:24,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:24,512 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-23 21:42:24,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:24,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423746142] [2023-11-23 21:42:24,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423746142] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:42:24,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207626052] [2023-11-23 21:42:24,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:24,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:42:24,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:42:24,516 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:42:24,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 21:42:24,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:24,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 1226 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 21:42:24,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:42:24,924 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-23 21:42:24,924 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:42:24,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207626052] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:24,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:42:24,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-11-23 21:42:24,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788205634] [2023-11-23 21:42:24,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:24,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:42:24,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:24,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:42:24,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-11-23 21:42:24,927 INFO L87 Difference]: Start difference. First operand 365 states and 561 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-23 21:42:25,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:25,056 INFO L93 Difference]: Finished difference Result 723 states and 1115 transitions. [2023-11-23 21:42:25,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:42:25,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 141 [2023-11-23 21:42:25,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:25,062 INFO L225 Difference]: With dead ends: 723 [2023-11-23 21:42:25,063 INFO L226 Difference]: Without dead ends: 367 [2023-11-23 21:42:25,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-11-23 21:42:25,065 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 8 mSDsluCounter, 1336 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:25,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1787 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:42:25,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2023-11-23 21:42:25,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 367. [2023-11-23 21:42:25,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 278 states have (on average 1.564748201438849) internal successors, (435), 283 states have internal predecessors, (435), 63 states have call successors, (63), 23 states have call predecessors, (63), 25 states have return successors, (69), 62 states have call predecessors, (69), 62 states have call successors, (69) [2023-11-23 21:42:25,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 567 transitions. [2023-11-23 21:42:25,105 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 567 transitions. Word has length 141 [2023-11-23 21:42:25,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:25,105 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 567 transitions. [2023-11-23 21:42:25,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-23 21:42:25,106 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 567 transitions. [2023-11-23 21:42:25,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-23 21:42:25,110 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:25,110 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:25,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 21:42:25,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:42:25,324 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:25,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:25,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1643207760, now seen corresponding path program 1 times [2023-11-23 21:42:25,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:25,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517938807] [2023-11-23 21:42:25,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:25,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:25,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:42:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:25,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 21:42:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:25,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 21:42:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:25,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 21:42:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:25,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 21:42:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:25,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 21:42:25,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:25,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 21:42:25,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:25,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-23 21:42:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:25,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 21:42:25,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:25,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-23 21:42:25,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:25,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 21:42:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:25,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 21:42:25,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:25,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 21:42:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:25,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 21:42:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:25,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-23 21:42:25,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:25,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:25,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-23 21:42:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:25,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:25,623 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-23 21:42:25,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:25,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517938807] [2023-11-23 21:42:25,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517938807] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:25,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:25,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 21:42:25,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327696311] [2023-11-23 21:42:25,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:25,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 21:42:25,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:25,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 21:42:25,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:42:25,626 INFO L87 Difference]: Start difference. First operand 367 states and 567 transitions. Second operand has 9 states, 8 states have (on average 10.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-23 21:42:27,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:27,855 INFO L93 Difference]: Finished difference Result 798 states and 1245 transitions. [2023-11-23 21:42:27,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 21:42:27,856 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 142 [2023-11-23 21:42:27,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:27,861 INFO L225 Difference]: With dead ends: 798 [2023-11-23 21:42:27,862 INFO L226 Difference]: Without dead ends: 450 [2023-11-23 21:42:27,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-23 21:42:27,864 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 1064 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2052 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 2394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 2052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:27,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1065 Valid, 963 Invalid, 2394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 2052 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-23 21:42:27,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2023-11-23 21:42:27,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 367. [2023-11-23 21:42:27,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 278 states have (on average 1.564748201438849) internal successors, (435), 283 states have internal predecessors, (435), 63 states have call successors, (63), 23 states have call predecessors, (63), 25 states have return successors, (68), 62 states have call predecessors, (68), 62 states have call successors, (68) [2023-11-23 21:42:27,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 566 transitions. [2023-11-23 21:42:27,924 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 566 transitions. Word has length 142 [2023-11-23 21:42:27,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:27,925 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 566 transitions. [2023-11-23 21:42:27,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-23 21:42:27,926 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 566 transitions. [2023-11-23 21:42:27,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-23 21:42:27,930 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:27,930 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:27,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 21:42:27,930 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:27,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:27,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1864368341, now seen corresponding path program 2 times [2023-11-23 21:42:27,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:27,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289533113] [2023-11-23 21:42:27,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:27,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:27,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:28,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:42:28,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:28,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 21:42:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:28,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 21:42:28,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:28,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 21:42:28,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:28,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 21:42:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:28,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 21:42:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:28,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 21:42:28,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:28,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 21:42:28,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:28,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 21:42:28,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:28,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-23 21:42:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:28,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 21:42:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:28,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 21:42:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:28,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 21:42:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:28,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-23 21:42:28,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:28,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-23 21:42:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:28,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:28,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-23 21:42:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:28,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:28,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:28,295 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-23 21:42:28,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:28,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289533113] [2023-11-23 21:42:28,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289533113] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:28,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:28,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 21:42:28,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986382024] [2023-11-23 21:42:28,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:28,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 21:42:28,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:28,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 21:42:28,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:42:28,299 INFO L87 Difference]: Start difference. First operand 367 states and 566 transitions. Second operand has 9 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-23 21:42:30,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:30,457 INFO L93 Difference]: Finished difference Result 800 states and 1248 transitions. [2023-11-23 21:42:30,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 21:42:30,458 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 143 [2023-11-23 21:42:30,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:30,463 INFO L225 Difference]: With dead ends: 800 [2023-11-23 21:42:30,463 INFO L226 Difference]: Without dead ends: 452 [2023-11-23 21:42:30,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-23 21:42:30,465 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 1054 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2065 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 2413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 2065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:30,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1055 Valid, 963 Invalid, 2413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 2065 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-23 21:42:30,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2023-11-23 21:42:30,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 369. [2023-11-23 21:42:30,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 279 states have (on average 1.5627240143369177) internal successors, (436), 285 states have internal predecessors, (436), 63 states have call successors, (63), 23 states have call predecessors, (63), 26 states have return successors, (70), 62 states have call predecessors, (70), 62 states have call successors, (70) [2023-11-23 21:42:30,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 569 transitions. [2023-11-23 21:42:30,510 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 569 transitions. Word has length 143 [2023-11-23 21:42:30,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:30,511 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 569 transitions. [2023-11-23 21:42:30,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-23 21:42:30,511 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 569 transitions. [2023-11-23 21:42:30,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-23 21:42:30,514 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:30,514 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:30,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 21:42:30,515 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:30,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:30,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1308802635, now seen corresponding path program 1 times [2023-11-23 21:42:30,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:30,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305804875] [2023-11-23 21:42:30,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:30,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:30,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:42:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:30,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 21:42:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:30,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 21:42:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:30,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 21:42:30,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:30,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 21:42:30,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:30,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 21:42:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:30,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 21:42:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:30,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 21:42:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:30,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 21:42:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:30,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 21:42:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:30,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 21:42:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:30,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-23 21:42:30,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:30,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 21:42:30,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:30,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-23 21:42:30,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:30,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 21:42:30,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:30,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:30,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-23 21:42:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:30,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:30,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:30,831 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-23 21:42:30,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:30,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305804875] [2023-11-23 21:42:30,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305804875] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:30,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:30,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 21:42:30,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577856055] [2023-11-23 21:42:30,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:30,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 21:42:30,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:30,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 21:42:30,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-23 21:42:30,834 INFO L87 Difference]: Start difference. First operand 369 states and 569 transitions. Second operand has 12 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-23 21:42:33,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:33,688 INFO L93 Difference]: Finished difference Result 798 states and 1243 transitions. [2023-11-23 21:42:33,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 21:42:33,689 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 144 [2023-11-23 21:42:33,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:33,695 INFO L225 Difference]: With dead ends: 798 [2023-11-23 21:42:33,695 INFO L226 Difference]: Without dead ends: 452 [2023-11-23 21:42:33,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-23 21:42:33,698 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 1058 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3473 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 3827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 3473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:33,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 1332 Invalid, 3827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 3473 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-23 21:42:33,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2023-11-23 21:42:33,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 369. [2023-11-23 21:42:33,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 279 states have (on average 1.5627240143369177) internal successors, (436), 285 states have internal predecessors, (436), 63 states have call successors, (63), 23 states have call predecessors, (63), 26 states have return successors, (69), 62 states have call predecessors, (69), 62 states have call successors, (69) [2023-11-23 21:42:33,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 568 transitions. [2023-11-23 21:42:33,741 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 568 transitions. Word has length 144 [2023-11-23 21:42:33,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:33,741 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 568 transitions. [2023-11-23 21:42:33,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-23 21:42:33,742 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 568 transitions. [2023-11-23 21:42:33,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-23 21:42:33,745 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:33,745 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:33,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 21:42:33,746 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:33,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:33,746 INFO L85 PathProgramCache]: Analyzing trace with hash -771118987, now seen corresponding path program 2 times [2023-11-23 21:42:33,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:33,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336826094] [2023-11-23 21:42:33,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:33,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:33,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:42:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:33,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 21:42:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:33,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 21:42:33,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:33,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 21:42:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:33,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 21:42:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:33,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 21:42:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:34,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 21:42:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:34,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 21:42:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:34,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 21:42:34,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:34,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-23 21:42:34,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:34,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 21:42:34,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:34,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 21:42:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:34,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-23 21:42:34,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:34,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-23 21:42:34,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:34,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-23 21:42:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:34,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:34,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-23 21:42:34,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:34,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:34,063 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-23 21:42:34,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:34,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336826094] [2023-11-23 21:42:34,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336826094] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:34,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:34,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 21:42:34,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471264862] [2023-11-23 21:42:34,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:34,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 21:42:34,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:34,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 21:42:34,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-23 21:42:34,066 INFO L87 Difference]: Start difference. First operand 369 states and 568 transitions. Second operand has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-23 21:42:36,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:36,933 INFO L93 Difference]: Finished difference Result 800 states and 1249 transitions. [2023-11-23 21:42:36,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 21:42:36,934 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 145 [2023-11-23 21:42:36,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:36,938 INFO L225 Difference]: With dead ends: 800 [2023-11-23 21:42:36,939 INFO L226 Difference]: Without dead ends: 454 [2023-11-23 21:42:36,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-23 21:42:36,942 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 1062 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3466 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 3824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 3466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:36,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 1332 Invalid, 3824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 3466 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-23 21:42:36,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2023-11-23 21:42:36,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 371. [2023-11-23 21:42:36,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 280 states have (on average 1.5607142857142857) internal successors, (437), 287 states have internal predecessors, (437), 63 states have call successors, (63), 23 states have call predecessors, (63), 27 states have return successors, (74), 62 states have call predecessors, (74), 62 states have call successors, (74) [2023-11-23 21:42:36,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 574 transitions. [2023-11-23 21:42:36,996 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 574 transitions. Word has length 145 [2023-11-23 21:42:36,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:36,997 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 574 transitions. [2023-11-23 21:42:36,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-23 21:42:36,997 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 574 transitions. [2023-11-23 21:42:37,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-23 21:42:37,001 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:37,001 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:37,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 21:42:37,002 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:37,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:37,003 INFO L85 PathProgramCache]: Analyzing trace with hash -234900186, now seen corresponding path program 1 times [2023-11-23 21:42:37,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:37,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872961432] [2023-11-23 21:42:37,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:37,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:37,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:37,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:42:37,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:37,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 21:42:37,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:37,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 21:42:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:37,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 21:42:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:37,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 21:42:37,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:37,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 21:42:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:37,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 21:42:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:37,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-23 21:42:37,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:37,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-23 21:42:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:37,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-23 21:42:37,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:37,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-23 21:42:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:37,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-23 21:42:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:37,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 21:42:37,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:37,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-23 21:42:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:37,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 21:42:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:37,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:37,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-23 21:42:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:37,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:37,355 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-23 21:42:37,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:37,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872961432] [2023-11-23 21:42:37,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872961432] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:42:37,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347464448] [2023-11-23 21:42:37,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:37,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:42:37,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:42:37,358 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:42:37,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 21:42:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:37,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 1231 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:42:37,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:42:37,744 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-23 21:42:37,745 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:42:37,862 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-23 21:42:37,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347464448] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:42:37,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:42:37,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-11-23 21:42:37,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170865380] [2023-11-23 21:42:37,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:42:37,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-23 21:42:37,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:37,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 21:42:37,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-23 21:42:37,869 INFO L87 Difference]: Start difference. First operand 371 states and 574 transitions. Second operand has 15 states, 14 states have (on average 9.928571428571429) internal successors, (139), 11 states have internal predecessors, (139), 4 states have call successors, (39), 6 states have call predecessors, (39), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) [2023-11-23 21:42:41,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:41,462 INFO L93 Difference]: Finished difference Result 1129 states and 1860 transitions. [2023-11-23 21:42:41,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-23 21:42:41,463 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.928571428571429) internal successors, (139), 11 states have internal predecessors, (139), 4 states have call successors, (39), 6 states have call predecessors, (39), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) Word has length 146 [2023-11-23 21:42:41,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:41,470 INFO L225 Difference]: With dead ends: 1129 [2023-11-23 21:42:41,470 INFO L226 Difference]: Without dead ends: 784 [2023-11-23 21:42:41,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2023-11-23 21:42:41,473 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 2039 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 4269 mSolverCounterSat, 681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2056 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 4950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 681 IncrementalHoareTripleChecker+Valid, 4269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:41,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2056 Valid, 1536 Invalid, 4950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [681 Valid, 4269 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-23 21:42:41,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2023-11-23 21:42:41,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 686. [2023-11-23 21:42:41,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 531 states have (on average 1.6101694915254237) internal successors, (855), 538 states have internal predecessors, (855), 127 states have call successors, (127), 23 states have call predecessors, (127), 27 states have return successors, (148), 126 states have call predecessors, (148), 126 states have call successors, (148) [2023-11-23 21:42:41,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 1130 transitions. [2023-11-23 21:42:41,542 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 1130 transitions. Word has length 146 [2023-11-23 21:42:41,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:41,543 INFO L495 AbstractCegarLoop]: Abstraction has 686 states and 1130 transitions. [2023-11-23 21:42:41,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.928571428571429) internal successors, (139), 11 states have internal predecessors, (139), 4 states have call successors, (39), 6 states have call predecessors, (39), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) [2023-11-23 21:42:41,543 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 1130 transitions. [2023-11-23 21:42:41,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-23 21:42:41,549 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:41,549 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:41,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 21:42:41,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fed0ae-385a-46a1-8d72-86ee9814eb80/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 21:42:41,763 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:41,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:41,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1106263431, now seen corresponding path program 1 times [2023-11-23 21:42:41,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:41,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105984245] [2023-11-23 21:42:41,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:41,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:41,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:42:41,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:41,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 21:42:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:41,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 21:42:41,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:41,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 21:42:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:41,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 21:42:41,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:41,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 21:42:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:41,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 21:42:41,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:41,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 21:42:41,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:41,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-23 21:42:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:41,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 21:42:41,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:41,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 21:42:41,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:41,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 21:42:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:41,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-23 21:42:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:41,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-23 21:42:41,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:41,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-23 21:42:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:41,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:41,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:41,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-23 21:42:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:41,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:41,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:41,922 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-23 21:42:41,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:41,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105984245] [2023-11-23 21:42:41,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105984245] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:41,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:41,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 21:42:41,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704976131] [2023-11-23 21:42:41,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:41,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 21:42:41,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:41,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 21:42:41,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:42:41,925 INFO L87 Difference]: Start difference. First operand 686 states and 1130 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:42:43,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:43,675 INFO L93 Difference]: Finished difference Result 1684 states and 2849 transitions. [2023-11-23 21:42:43,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 21:42:43,676 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2023-11-23 21:42:43,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:43,685 INFO L225 Difference]: With dead ends: 1684 [2023-11-23 21:42:43,685 INFO L226 Difference]: Without dead ends: 1066 [2023-11-23 21:42:43,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-23 21:42:43,689 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 1137 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1152 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 1610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 402 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:43,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1152 Valid, 733 Invalid, 1610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [402 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-23 21:42:43,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2023-11-23 21:42:43,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 978. [2023-11-23 21:42:43,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 759 states have (on average 1.6231884057971016) internal successors, (1232), 766 states have internal predecessors, (1232), 191 states have call successors, (191), 23 states have call predecessors, (191), 27 states have return successors, (222), 190 states have call predecessors, (222), 190 states have call successors, (222) [2023-11-23 21:42:43,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1645 transitions. [2023-11-23 21:42:43,771 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1645 transitions. Word has length 150 [2023-11-23 21:42:43,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:43,771 INFO L495 AbstractCegarLoop]: Abstraction has 978 states and 1645 transitions. [2023-11-23 21:42:43,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:42:43,771 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1645 transitions. [2023-11-23 21:42:43,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-23 21:42:43,779 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:43,780 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:43,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 21:42:43,780 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:43,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:43,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1499241393, now seen corresponding path program 1 times [2023-11-23 21:42:43,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:43,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731476372] [2023-11-23 21:42:43,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:43,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:43,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:42:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:43,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 21:42:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:43,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 21:42:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:43,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 21:42:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:43,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 21:42:43,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:43,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 21:42:43,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:43,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-23 21:42:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:43,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 21:42:43,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:43,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-23 21:42:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:43,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 21:42:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:43,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 21:42:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:43,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-23 21:42:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:43,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-23 21:42:43,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:43,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-23 21:42:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:43,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-23 21:42:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:43,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:43,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-23 21:42:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:43,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:43,958 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-23 21:42:43,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:43,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731476372] [2023-11-23 21:42:43,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731476372] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:43,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:43,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 21:42:43,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722343136] [2023-11-23 21:42:43,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:43,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 21:42:43,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:43,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 21:42:43,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:42:43,961 INFO L87 Difference]: Start difference. First operand 978 states and 1645 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:42:45,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:45,626 INFO L93 Difference]: Finished difference Result 2401 states and 4106 transitions. [2023-11-23 21:42:45,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 21:42:45,627 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 151 [2023-11-23 21:42:45,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:45,640 INFO L225 Difference]: With dead ends: 2401 [2023-11-23 21:42:45,640 INFO L226 Difference]: Without dead ends: 1541 [2023-11-23 21:42:45,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-23 21:42:45,646 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 1172 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 417 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 1561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 417 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:45,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1187 Valid, 711 Invalid, 1561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [417 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-23 21:42:45,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1541 states. [2023-11-23 21:42:45,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1541 to 1453. [2023-11-23 21:42:45,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 1139 states have (on average 1.6294995610184373) internal successors, (1856), 1146 states have internal predecessors, (1856), 286 states have call successors, (286), 23 states have call predecessors, (286), 27 states have return successors, (317), 285 states have call predecessors, (317), 285 states have call successors, (317) [2023-11-23 21:42:45,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 2459 transitions. [2023-11-23 21:42:45,759 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 2459 transitions. Word has length 151 [2023-11-23 21:42:45,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:45,760 INFO L495 AbstractCegarLoop]: Abstraction has 1453 states and 2459 transitions. [2023-11-23 21:42:45,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:42:45,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 2459 transitions. [2023-11-23 21:42:45,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-23 21:42:45,772 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:45,773 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:45,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-23 21:42:45,773 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:45,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:45,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1624685013, now seen corresponding path program 1 times [2023-11-23 21:42:45,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:45,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358521659] [2023-11-23 21:42:45,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:45,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:45,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:42:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:45,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 21:42:45,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:45,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 21:42:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:45,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 21:42:45,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:45,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 21:42:45,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:45,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 21:42:45,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:45,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 21:42:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:45,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 21:42:45,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:45,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 21:42:45,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:45,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-23 21:42:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:45,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 21:42:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:45,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 21:42:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:45,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-23 21:42:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:45,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 21:42:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:45,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 21:42:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:45,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:45,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:45,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-23 21:42:45,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:45,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:45,935 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-23 21:42:45,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:45,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358521659] [2023-11-23 21:42:45,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358521659] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:45,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:45,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 21:42:45,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270842749] [2023-11-23 21:42:45,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:45,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 21:42:45,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:45,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 21:42:45,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:42:45,939 INFO L87 Difference]: Start difference. First operand 1453 states and 2459 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:42:47,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:47,588 INFO L93 Difference]: Finished difference Result 3463 states and 5984 transitions. [2023-11-23 21:42:47,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 21:42:47,589 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2023-11-23 21:42:47,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:47,608 INFO L225 Difference]: With dead ends: 3463 [2023-11-23 21:42:47,608 INFO L226 Difference]: Without dead ends: 2256 [2023-11-23 21:42:47,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-23 21:42:47,615 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 1170 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 1145 mSolverCounterSat, 409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 409 IncrementalHoareTripleChecker+Valid, 1145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:47,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1185 Valid, 705 Invalid, 1554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [409 Valid, 1145 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-23 21:42:47,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2256 states. [2023-11-23 21:42:47,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2256 to 2168. [2023-11-23 21:42:47,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2168 states, 1731 states have (on average 1.634893125361063) internal successors, (2830), 1738 states have internal predecessors, (2830), 409 states have call successors, (409), 23 states have call predecessors, (409), 27 states have return successors, (456), 408 states have call predecessors, (456), 408 states have call successors, (456) [2023-11-23 21:42:47,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2168 states to 2168 states and 3695 transitions. [2023-11-23 21:42:47,820 INFO L78 Accepts]: Start accepts. Automaton has 2168 states and 3695 transitions. Word has length 152 [2023-11-23 21:42:47,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:47,821 INFO L495 AbstractCegarLoop]: Abstraction has 2168 states and 3695 transitions. [2023-11-23 21:42:47,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:42:47,821 INFO L276 IsEmpty]: Start isEmpty. Operand 2168 states and 3695 transitions. [2023-11-23 21:42:47,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-23 21:42:47,838 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:47,838 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:47,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-23 21:42:47,839 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:47,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:47,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1726742002, now seen corresponding path program 1 times [2023-11-23 21:42:47,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:47,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778957008] [2023-11-23 21:42:47,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:47,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:47,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:42:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:47,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 21:42:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:47,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 21:42:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:47,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 21:42:47,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:47,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 21:42:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:47,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 21:42:47,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:47,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 21:42:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:47,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 21:42:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:47,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-23 21:42:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:47,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 21:42:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:47,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 21:42:47,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:47,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 21:42:47,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:47,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-23 21:42:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:47,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-23 21:42:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:47,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-23 21:42:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:47,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:47,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 21:42:47,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:47,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:47,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:47,994 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-23 21:42:47,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:47,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778957008] [2023-11-23 21:42:47,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778957008] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:47,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:47,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 21:42:47,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671506426] [2023-11-23 21:42:47,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:47,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 21:42:47,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:47,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 21:42:47,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:42:47,999 INFO L87 Difference]: Start difference. First operand 2168 states and 3695 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:42:49,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:49,709 INFO L93 Difference]: Finished difference Result 5105 states and 8897 transitions. [2023-11-23 21:42:49,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 21:42:49,710 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2023-11-23 21:42:49,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:49,738 INFO L225 Difference]: With dead ends: 5105 [2023-11-23 21:42:49,739 INFO L226 Difference]: Without dead ends: 3392 [2023-11-23 21:42:49,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-23 21:42:49,747 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 1195 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 426 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 1541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 426 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:49,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 705 Invalid, 1541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [426 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-23 21:42:49,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3392 states. [2023-11-23 21:42:49,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3392 to 3304. [2023-11-23 21:42:49,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3304 states, 2688 states have (on average 1.6383928571428572) internal successors, (4404), 2695 states have internal predecessors, (4404), 588 states have call successors, (588), 23 states have call predecessors, (588), 27 states have return successors, (661), 587 states have call predecessors, (661), 587 states have call successors, (661) [2023-11-23 21:42:49,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3304 states to 3304 states and 5653 transitions. [2023-11-23 21:42:49,995 INFO L78 Accepts]: Start accepts. Automaton has 3304 states and 5653 transitions. Word has length 153 [2023-11-23 21:42:49,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:49,996 INFO L495 AbstractCegarLoop]: Abstraction has 3304 states and 5653 transitions. [2023-11-23 21:42:49,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:42:49,996 INFO L276 IsEmpty]: Start isEmpty. Operand 3304 states and 5653 transitions. [2023-11-23 21:42:50,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-23 21:42:50,022 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:50,023 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:50,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-23 21:42:50,023 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:50,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:50,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1791590127, now seen corresponding path program 1 times [2023-11-23 21:42:50,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:50,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541329059] [2023-11-23 21:42:50,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:50,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:50,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:50,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:42:50,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:50,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 21:42:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:50,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 21:42:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:50,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 21:42:50,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:50,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 21:42:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:50,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 21:42:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:50,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-23 21:42:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:50,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-23 21:42:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:50,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-23 21:42:50,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:50,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-23 21:42:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:50,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 21:42:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:50,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 21:42:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:50,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 21:42:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:50,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 21:42:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:50,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-23 21:42:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:50,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:50,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-23 21:42:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:50,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:50,168 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-23 21:42:50,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:50,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541329059] [2023-11-23 21:42:50,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541329059] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:50,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:50,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 21:42:50,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418828646] [2023-11-23 21:42:50,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:50,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 21:42:50,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:50,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 21:42:50,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:42:50,174 INFO L87 Difference]: Start difference. First operand 3304 states and 5653 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:42:51,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:51,926 INFO L93 Difference]: Finished difference Result 8060 states and 14095 transitions. [2023-11-23 21:42:51,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 21:42:51,928 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 154 [2023-11-23 21:42:51,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:51,972 INFO L225 Difference]: With dead ends: 8060 [2023-11-23 21:42:51,973 INFO L226 Difference]: Without dead ends: 5450 [2023-11-23 21:42:51,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-23 21:42:51,985 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 1142 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 1605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 395 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:51,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 745 Invalid, 1605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [395 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-23 21:42:51,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5450 states. [2023-11-23 21:42:52,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5450 to 5362. [2023-11-23 21:42:52,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5362 states, 4370 states have (on average 1.6308924485125857) internal successors, (7127), 4377 states have internal predecessors, (7127), 964 states have call successors, (964), 23 states have call predecessors, (964), 27 states have return successors, (1081), 963 states have call predecessors, (1081), 963 states have call successors, (1081) [2023-11-23 21:42:52,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5362 states to 5362 states and 9172 transitions. [2023-11-23 21:42:52,419 INFO L78 Accepts]: Start accepts. Automaton has 5362 states and 9172 transitions. Word has length 154 [2023-11-23 21:42:52,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:52,419 INFO L495 AbstractCegarLoop]: Abstraction has 5362 states and 9172 transitions. [2023-11-23 21:42:52,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:42:52,420 INFO L276 IsEmpty]: Start isEmpty. Operand 5362 states and 9172 transitions. [2023-11-23 21:42:52,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-23 21:42:52,462 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:52,462 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:52,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-23 21:42:52,463 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:52,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:52,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1761592650, now seen corresponding path program 1 times [2023-11-23 21:42:52,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:52,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861136396] [2023-11-23 21:42:52,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:52,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:52,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:52,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:42:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:52,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 21:42:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:52,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 21:42:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:52,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 21:42:52,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:52,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 21:42:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:52,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 21:42:52,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:52,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 21:42:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:52,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 21:42:52,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:52,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 21:42:52,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:52,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 21:42:52,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:52,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-23 21:42:52,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:52,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-23 21:42:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:52,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-23 21:42:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:52,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 21:42:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:52,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-23 21:42:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:52,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:52,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-23 21:42:52,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:52,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:52,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:52,621 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-23 21:42:52,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:52,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861136396] [2023-11-23 21:42:52,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861136396] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:52,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:52,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 21:42:52,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463229930] [2023-11-23 21:42:52,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:52,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 21:42:52,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:52,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 21:42:52,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:42:52,624 INFO L87 Difference]: Start difference. First operand 5362 states and 9172 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:42:54,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:54,462 INFO L93 Difference]: Finished difference Result 13265 states and 23179 transitions. [2023-11-23 21:42:54,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 21:42:54,462 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 155 [2023-11-23 21:42:54,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:54,523 INFO L225 Difference]: With dead ends: 13265 [2023-11-23 21:42:54,523 INFO L226 Difference]: Without dead ends: 8983 [2023-11-23 21:42:54,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-23 21:42:54,540 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 1214 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 442 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 1524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 442 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:54,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 709 Invalid, 1524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [442 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-23 21:42:54,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8983 states. [2023-11-23 21:42:55,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8983 to 8895. [2023-11-23 21:42:55,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8895 states, 7297 states have (on average 1.628614499109223) internal successors, (11884), 7304 states have internal predecessors, (11884), 1570 states have call successors, (1570), 23 states have call predecessors, (1570), 27 states have return successors, (1765), 1569 states have call predecessors, (1765), 1569 states have call successors, (1765) [2023-11-23 21:42:55,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8895 states to 8895 states and 15219 transitions. [2023-11-23 21:42:55,162 INFO L78 Accepts]: Start accepts. Automaton has 8895 states and 15219 transitions. Word has length 155 [2023-11-23 21:42:55,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:55,162 INFO L495 AbstractCegarLoop]: Abstraction has 8895 states and 15219 transitions. [2023-11-23 21:42:55,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:42:55,162 INFO L276 IsEmpty]: Start isEmpty. Operand 8895 states and 15219 transitions. [2023-11-23 21:42:55,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-23 21:42:55,215 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:55,216 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:55,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-23 21:42:55,216 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:55,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:55,217 INFO L85 PathProgramCache]: Analyzing trace with hash 176783661, now seen corresponding path program 1 times [2023-11-23 21:42:55,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:55,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168357172] [2023-11-23 21:42:55,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:55,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:55,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:55,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:42:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:55,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 21:42:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:55,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 21:42:55,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:55,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 21:42:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:55,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 21:42:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:55,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 21:42:55,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:55,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 21:42:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:55,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 21:42:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:55,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 21:42:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:55,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 21:42:55,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:55,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 21:42:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:55,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-23 21:42:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:55,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-23 21:42:55,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:55,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-23 21:42:55,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:55,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-23 21:42:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:55,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:55,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-23 21:42:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:55,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:55,382 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-23 21:42:55,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:55,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168357172] [2023-11-23 21:42:55,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168357172] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:55,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:55,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 21:42:55,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923418615] [2023-11-23 21:42:55,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:55,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 21:42:55,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:55,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 21:42:55,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:42:55,385 INFO L87 Difference]: Start difference. First operand 8895 states and 15219 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)