./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya --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 1c5af94617941f44648ac9498189d5e73562b4cbf6ae0ea00b10262137b50bb0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:10:08,275 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:10:08,361 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 01:10:08,365 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:10:08,366 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:10:08,390 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:10:08,390 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:10:08,391 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:10:08,391 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:10:08,392 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:10:08,393 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:10:08,393 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:10:08,394 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:10:08,394 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:10:08,395 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:10:08,395 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:10:08,396 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:10:08,397 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:10:08,397 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:10:08,398 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:10:08,398 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:10:08,402 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:10:08,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:10:08,402 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:10:08,403 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:10:08,403 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:10:08,403 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:10:08,404 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:10:08,404 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:10:08,405 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:10:08,405 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:10:08,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:10:08,406 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:10:08,406 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:10:08,407 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:10:08,407 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:10:08,408 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:10:08,408 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:10:08,408 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:10:08,408 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:10:08,408 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:10:08,409 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:10:08,409 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_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c5af94617941f44648ac9498189d5e73562b4cbf6ae0ea00b10262137b50bb0 [2023-11-29 01:10:08,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:10:08,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:10:08,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:10:08,658 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:10:08,659 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:10:08,660 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/product-lines/email_spec11_productSimulator.cil.c [2023-11-29 01:10:11,379 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:10:11,682 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:10:11,683 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/sv-benchmarks/c/product-lines/email_spec11_productSimulator.cil.c [2023-11-29 01:10:11,708 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/data/fd8fc6109/7240a94d4cfa469791e3919b591625a1/FLAGef3bac67b [2023-11-29 01:10:11,721 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/data/fd8fc6109/7240a94d4cfa469791e3919b591625a1 [2023-11-29 01:10:11,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:10:11,724 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:10:11,725 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:10:11,725 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:10:11,730 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:10:11,731 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:10:11" (1/1) ... [2023-11-29 01:10:11,731 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63f2975a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:10:11, skipping insertion in model container [2023-11-29 01:10:11,732 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:10:11" (1/1) ... [2023-11-29 01:10:11,811 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:10:12,320 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_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/sv-benchmarks/c/product-lines/email_spec11_productSimulator.cil.c[48047,48060] [2023-11-29 01:10:12,363 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:10:12,380 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:10:12,389 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2023-11-29 01:10:12,391 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [168] [2023-11-29 01:10:12,391 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [754] [2023-11-29 01:10:12,391 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1126] [2023-11-29 01:10:12,392 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1492] [2023-11-29 01:10:12,392 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1698] [2023-11-29 01:10:12,392 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2095] [2023-11-29 01:10:12,392 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2112] [2023-11-29 01:10:12,392 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2378] [2023-11-29 01:10:12,392 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [2387] [2023-11-29 01:10:12,393 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [3447] [2023-11-29 01:10:12,454 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_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/sv-benchmarks/c/product-lines/email_spec11_productSimulator.cil.c[48047,48060] [2023-11-29 01:10:12,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:10:12,516 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:10:12,524 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:10:12,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:10:12 WrapperNode [2023-11-29 01:10:12,524 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:10:12,525 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:10:12,526 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:10:12,526 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:10:12,534 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:10:12" (1/1) ... [2023-11-29 01:10:12,568 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:10:12" (1/1) ... [2023-11-29 01:10:12,648 INFO L138 Inliner]: procedures = 151, calls = 282, calls flagged for inlining = 67, calls inlined = 64, statements flattened = 1334 [2023-11-29 01:10:12,649 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:10:12,649 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:10:12,650 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:10:12,650 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:10:12,661 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:10:12" (1/1) ... [2023-11-29 01:10:12,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:10:12" (1/1) ... [2023-11-29 01:10:12,672 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:10:12" (1/1) ... [2023-11-29 01:10:12,708 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2023-11-29 01:10:12,709 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:10:12" (1/1) ... [2023-11-29 01:10:12,709 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:10:12" (1/1) ... [2023-11-29 01:10:12,739 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:10:12" (1/1) ... [2023-11-29 01:10:12,754 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:10:12" (1/1) ... [2023-11-29 01:10:12,762 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:10:12" (1/1) ... [2023-11-29 01:10:12,770 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:10:12" (1/1) ... [2023-11-29 01:10:12,784 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:10:12,785 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:10:12,785 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:10:12,785 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:10:12,786 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:10:12" (1/1) ... [2023-11-29 01:10:12,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:10:12,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:10:12,824 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:10:12,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:10:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-11-29 01:10:12,856 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-11-29 01:10:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2023-11-29 01:10:12,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2023-11-29 01:10:12,857 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2023-11-29 01:10:12,857 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2023-11-29 01:10:12,857 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-29 01:10:12,857 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-29 01:10:12,857 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-29 01:10:12,857 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-29 01:10:12,857 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-29 01:10:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-29 01:10:12,858 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-29 01:10:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-29 01:10:12,858 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2023-11-29 01:10:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2023-11-29 01:10:12,858 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-29 01:10:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-29 01:10:12,859 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2023-11-29 01:10:12,859 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2023-11-29 01:10:12,859 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-29 01:10:12,859 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-29 01:10:12,859 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-29 01:10:12,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-29 01:10:12,859 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-29 01:10:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-29 01:10:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2023-11-29 01:10:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2023-11-29 01:10:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2023-11-29 01:10:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2023-11-29 01:10:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-29 01:10:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-29 01:10:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-29 01:10:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-29 01:10:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-29 01:10:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-29 01:10:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-29 01:10:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2023-11-29 01:10:12,862 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2023-11-29 01:10:12,862 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-29 01:10:12,862 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-29 01:10:12,862 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-11-29 01:10:12,862 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-11-29 01:10:12,862 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-29 01:10:12,863 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-29 01:10:12,863 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2023-11-29 01:10:12,863 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2023-11-29 01:10:12,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:10:12,863 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-29 01:10:12,863 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-29 01:10:12,864 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-11-29 01:10:12,864 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-11-29 01:10:12,864 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2023-11-29 01:10:12,864 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2023-11-29 01:10:12,864 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2023-11-29 01:10:12,864 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2023-11-29 01:10:12,864 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2023-11-29 01:10:12,865 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2023-11-29 01:10:12,865 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-29 01:10:12,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-29 01:10:12,865 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-29 01:10:12,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-29 01:10:12,865 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-29 01:10:12,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-29 01:10:12,865 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-29 01:10:12,866 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-29 01:10:12,866 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-11-29 01:10:12,866 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-11-29 01:10:12,866 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-29 01:10:12,866 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-29 01:10:12,866 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-29 01:10:12,866 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-29 01:10:12,866 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2023-11-29 01:10:12,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2023-11-29 01:10:12,867 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2023-11-29 01:10:12,867 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2023-11-29 01:10:12,867 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-29 01:10:12,867 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-29 01:10:12,867 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-29 01:10:12,867 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-29 01:10:12,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:10:12,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 01:10:12,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 01:10:12,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 01:10:12,868 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-29 01:10:12,868 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-29 01:10:12,868 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2023-11-29 01:10:12,868 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2023-11-29 01:10:12,868 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-11-29 01:10:12,869 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-11-29 01:10:12,869 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-29 01:10:12,869 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-29 01:10:12,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:10:12,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:10:13,078 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:10:13,081 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:10:13,995 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:10:14,065 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:10:14,065 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 01:10:14,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:10:14 BoogieIcfgContainer [2023-11-29 01:10:14,066 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:10:14,069 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:10:14,069 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:10:14,072 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:10:14,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:10:11" (1/3) ... [2023-11-29 01:10:14,073 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f15797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:10:14, skipping insertion in model container [2023-11-29 01:10:14,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:10:12" (2/3) ... [2023-11-29 01:10:14,073 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f15797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:10:14, skipping insertion in model container [2023-11-29 01:10:14,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:10:14" (3/3) ... [2023-11-29 01:10:14,075 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_productSimulator.cil.c [2023-11-29 01:10:14,093 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:10:14,094 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 01:10:14,158 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:10:14,163 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;@3b702570, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:10:14,163 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 01:10:14,171 INFO L276 IsEmpty]: Start isEmpty. Operand has 571 states, 417 states have (on average 1.5515587529976018) internal successors, (647), 437 states have internal predecessors, (647), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) [2023-11-29 01:10:14,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-29 01:10:14,200 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:10:14,201 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:10:14,201 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:10:14,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:10:14,207 INFO L85 PathProgramCache]: Analyzing trace with hash -483827818, now seen corresponding path program 1 times [2023-11-29 01:10:14,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:10:14,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921328292] [2023-11-29 01:10:14,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:14,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:10:14,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:14,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:14,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:10:14,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:14,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:10:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:14,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:10:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:14,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:10:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:14,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:10:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:14,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:10:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:14,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:10:14,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:14,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-29 01:10:14,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:14,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:14,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-29 01:10:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:14,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:14,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 01:10:14,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:14,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:14,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-29 01:10:14,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:14,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 01:10:14,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:14,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-29 01:10:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:14,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 01:10:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:14,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-29 01:10:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:14,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-29 01:10:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:14,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:10:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:14,866 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 01:10:14,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:10:14,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921328292] [2023-11-29 01:10:14,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921328292] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:10:14,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:10:14,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:10:14,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597717916] [2023-11-29 01:10:14,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:10:14,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:10:14,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:10:14,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:10:14,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:10:14,908 INFO L87 Difference]: Start difference. First operand has 571 states, 417 states have (on average 1.5515587529976018) internal successors, (647), 437 states have internal predecessors, (647), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:10:17,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:10:17,756 INFO L93 Difference]: Finished difference Result 1233 states and 1925 transitions. [2023-11-29 01:10:17,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:10:17,758 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 139 [2023-11-29 01:10:17,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:10:17,779 INFO L225 Difference]: With dead ends: 1233 [2023-11-29 01:10:17,780 INFO L226 Difference]: Without dead ends: 690 [2023-11-29 01:10:17,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:10:17,791 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 1317 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 2519 mSolverCounterSat, 598 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 1410 SdHoareTripleChecker+Invalid, 3117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 598 IncrementalHoareTripleChecker+Valid, 2519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:10:17,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1324 Valid, 1410 Invalid, 3117 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [598 Valid, 2519 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 01:10:17,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2023-11-29 01:10:17,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 568. [2023-11-29 01:10:17,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 415 states have (on average 1.5253012048192771) internal successors, (633), 434 states have internal predecessors, (633), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2023-11-29 01:10:17,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 850 transitions. [2023-11-29 01:10:17,932 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 850 transitions. Word has length 139 [2023-11-29 01:10:17,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:10:17,933 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 850 transitions. [2023-11-29 01:10:17,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:10:17,933 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 850 transitions. [2023-11-29 01:10:17,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-29 01:10:17,942 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:10:17,942 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:10:17,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:10:17,943 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:10:17,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:10:17,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1339543914, now seen corresponding path program 1 times [2023-11-29 01:10:17,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:10:17,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042276932] [2023-11-29 01:10:17,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:17,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:10:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:18,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:18,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:18,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:10:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:18,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:10:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:18,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:10:18,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:18,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:10:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:18,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:10:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:18,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:10:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:18,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:10:18,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:18,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 01:10:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:18,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:18,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:18,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 01:10:18,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:18,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:18,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-29 01:10:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:18,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:18,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:18,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-29 01:10:18,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:18,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 01:10:18,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:18,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 01:10:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:18,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-29 01:10:18,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:18,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-29 01:10:18,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:18,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-29 01:10:18,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:18,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:10:18,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:18,328 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 01:10:18,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:10:18,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042276932] [2023-11-29 01:10:18,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042276932] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:10:18,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258445256] [2023-11-29 01:10:18,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:18,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:10:18,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:10:18,335 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:10:18,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 01:10:18,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:18,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 1424 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:10:18,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:10:18,769 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 01:10:18,769 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:10:18,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258445256] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:10:18,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:10:18,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2023-11-29 01:10:18,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661142308] [2023-11-29 01:10:18,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:10:18,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:10:18,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:10:18,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:10:18,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:10:18,774 INFO L87 Difference]: Start difference. First operand 568 states and 850 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:10:18,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:10:18,873 INFO L93 Difference]: Finished difference Result 880 states and 1292 transitions. [2023-11-29 01:10:18,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:10:18,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 145 [2023-11-29 01:10:18,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:10:18,880 INFO L225 Difference]: With dead ends: 880 [2023-11-29 01:10:18,880 INFO L226 Difference]: Without dead ends: 570 [2023-11-29 01:10:18,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:10:18,883 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 0 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1657 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:10:18,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1657 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:10:18,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2023-11-29 01:10:18,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 570. [2023-11-29 01:10:18,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 417 states have (on average 1.5227817745803358) internal successors, (635), 436 states have internal predecessors, (635), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2023-11-29 01:10:18,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 852 transitions. [2023-11-29 01:10:18,940 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 852 transitions. Word has length 145 [2023-11-29 01:10:18,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:10:18,940 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 852 transitions. [2023-11-29 01:10:18,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:10:18,941 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 852 transitions. [2023-11-29 01:10:18,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-29 01:10:18,946 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:10:18,946 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:10:18,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:10:19,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:10:19,147 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:10:19,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:10:19,147 INFO L85 PathProgramCache]: Analyzing trace with hash -915338777, now seen corresponding path program 1 times [2023-11-29 01:10:19,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:10:19,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121372748] [2023-11-29 01:10:19,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:19,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:10:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:19,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:19,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:10:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:19,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:10:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:19,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:10:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:19,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:10:19,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:19,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:10:19,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:19,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:10:19,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:19,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:10:19,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:19,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 01:10:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:19,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:19,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:19,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 01:10:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:19,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:19,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:19,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-29 01:10:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:19,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:19,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-29 01:10:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:19,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-29 01:10:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:19,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-29 01:10:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:19,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-29 01:10:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:19,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-29 01:10:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:19,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-29 01:10:19,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:19,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:10:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:19,559 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-29 01:10:19,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:10:19,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121372748] [2023-11-29 01:10:19,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121372748] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:10:19,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352432266] [2023-11-29 01:10:19,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:19,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:10:19,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:10:19,562 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:10:19,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 01:10:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:19,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 1430 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 01:10:19,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:10:20,038 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-29 01:10:20,039 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:10:20,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352432266] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:10:20,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:10:20,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-11-29 01:10:20,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060855373] [2023-11-29 01:10:20,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:10:20,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:10:20,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:10:20,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:10:20,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:10:20,043 INFO L87 Difference]: Start difference. First operand 570 states and 852 transitions. Second operand has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-11-29 01:10:20,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:10:20,280 INFO L93 Difference]: Finished difference Result 1091 states and 1637 transitions. [2023-11-29 01:10:20,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:10:20,281 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 151 [2023-11-29 01:10:20,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:10:20,286 INFO L225 Difference]: With dead ends: 1091 [2023-11-29 01:10:20,286 INFO L226 Difference]: Without dead ends: 574 [2023-11-29 01:10:20,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:10:20,290 INFO L413 NwaCegarLoop]: 817 mSDtfsCounter, 12 mSDsluCounter, 4064 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 4881 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:10:20,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 4881 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:10:20,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2023-11-29 01:10:20,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2023-11-29 01:10:20,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 419 states have (on average 1.5202863961813842) internal successors, (637), 439 states have internal predecessors, (637), 109 states have call successors, (109), 43 states have call predecessors, (109), 45 states have return successors, (112), 108 states have call predecessors, (112), 108 states have call successors, (112) [2023-11-29 01:10:20,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 858 transitions. [2023-11-29 01:10:20,370 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 858 transitions. Word has length 151 [2023-11-29 01:10:20,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:10:20,371 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 858 transitions. [2023-11-29 01:10:20,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-11-29 01:10:20,371 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 858 transitions. [2023-11-29 01:10:20,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-29 01:10:20,375 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:10:20,375 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:10:20,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 01:10:20,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:10:20,583 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:10:20,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:10:20,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1929952825, now seen corresponding path program 1 times [2023-11-29 01:10:20,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:10:20,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358856441] [2023-11-29 01:10:20,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:20,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:10:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:20,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:20,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:10:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:20,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:10:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:20,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:10:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:20,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:10:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:20,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:10:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:20,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:10:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:20,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:10:20,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:20,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 01:10:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:20,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:20,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 01:10:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:20,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:20,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:20,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 01:10:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:20,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:20,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:20,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 01:10:20,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:20,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-29 01:10:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:20,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-29 01:10:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:20,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-29 01:10:20,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:20,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-29 01:10:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:20,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-29 01:10:20,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:20,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:10:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:20,934 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-29 01:10:20,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:10:20,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358856441] [2023-11-29 01:10:20,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358856441] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:10:20,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:10:20,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 01:10:20,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430429696] [2023-11-29 01:10:20,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:10:20,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:10:20,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:10:20,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:10:20,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:10:20,937 INFO L87 Difference]: Start difference. First operand 574 states and 858 transitions. Second operand has 10 states, 9 states have (on average 9.88888888888889) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (29), 5 states have call predecessors, (29), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-11-29 01:10:24,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:10:24,341 INFO L93 Difference]: Finished difference Result 1199 states and 1834 transitions. [2023-11-29 01:10:24,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:10:24,342 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.88888888888889) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (29), 5 states have call predecessors, (29), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 152 [2023-11-29 01:10:24,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:10:24,348 INFO L225 Difference]: With dead ends: 1199 [2023-11-29 01:10:24,348 INFO L226 Difference]: Without dead ends: 698 [2023-11-29 01:10:24,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:10:24,351 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 1341 mSDsluCounter, 1789 mSDsCounter, 0 mSdLazyCounter, 4726 mSolverCounterSat, 589 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1353 SdHoareTripleChecker+Valid, 2067 SdHoareTripleChecker+Invalid, 5315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 589 IncrementalHoareTripleChecker+Valid, 4726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:10:24,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1353 Valid, 2067 Invalid, 5315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [589 Valid, 4726 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-29 01:10:24,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2023-11-29 01:10:24,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 576. [2023-11-29 01:10:24,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 420 states have (on average 1.519047619047619) internal successors, (638), 440 states have internal predecessors, (638), 109 states have call successors, (109), 43 states have call predecessors, (109), 46 states have return successors, (113), 109 states have call predecessors, (113), 108 states have call successors, (113) [2023-11-29 01:10:24,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 860 transitions. [2023-11-29 01:10:24,403 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 860 transitions. Word has length 152 [2023-11-29 01:10:24,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:10:24,404 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 860 transitions. [2023-11-29 01:10:24,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.88888888888889) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (29), 5 states have call predecessors, (29), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-11-29 01:10:24,405 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 860 transitions. [2023-11-29 01:10:24,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 01:10:24,408 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:10:24,409 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:10:24,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 01:10:24,409 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:10:24,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:10:24,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1161237262, now seen corresponding path program 1 times [2023-11-29 01:10:24,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:10:24,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689448189] [2023-11-29 01:10:24,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:24,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:10:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:24,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:24,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:24,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:10:24,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:24,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:10:24,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:24,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:10:24,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:24,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:10:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:24,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:10:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:24,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:10:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:24,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:10:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:24,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 01:10:24,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:24,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:24,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:24,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 01:10:24,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:24,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:24,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 01:10:24,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:24,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:24,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:24,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-29 01:10:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:24,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-29 01:10:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:24,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-29 01:10:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:24,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-29 01:10:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:24,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-29 01:10:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:24,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-29 01:10:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:24,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:10:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:24,754 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-29 01:10:24,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:10:24,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689448189] [2023-11-29 01:10:24,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689448189] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:10:24,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:10:24,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 01:10:24,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419707897] [2023-11-29 01:10:24,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:10:24,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:10:24,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:10:24,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:10:24,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:10:24,757 INFO L87 Difference]: Start difference. First operand 576 states and 860 transitions. Second operand has 10 states, 9 states have (on average 10.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (29), 5 states have call predecessors, (29), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-11-29 01:10:27,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:10:27,621 INFO L93 Difference]: Finished difference Result 1203 states and 1840 transitions. [2023-11-29 01:10:27,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:10:27,621 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (29), 5 states have call predecessors, (29), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 153 [2023-11-29 01:10:27,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:10:27,627 INFO L225 Difference]: With dead ends: 1203 [2023-11-29 01:10:27,627 INFO L226 Difference]: Without dead ends: 702 [2023-11-29 01:10:27,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:10:27,630 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 1336 mSDsluCounter, 1789 mSDsCounter, 0 mSdLazyCounter, 4717 mSolverCounterSat, 589 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 2067 SdHoareTripleChecker+Invalid, 5306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 589 IncrementalHoareTripleChecker+Valid, 4717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:10:27,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1346 Valid, 2067 Invalid, 5306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [589 Valid, 4717 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 01:10:27,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2023-11-29 01:10:27,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 578. [2023-11-29 01:10:27,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 421 states have (on average 1.517814726840855) internal successors, (639), 442 states have internal predecessors, (639), 109 states have call successors, (109), 43 states have call predecessors, (109), 47 states have return successors, (116), 109 states have call predecessors, (116), 108 states have call successors, (116) [2023-11-29 01:10:27,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 864 transitions. [2023-11-29 01:10:27,681 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 864 transitions. Word has length 153 [2023-11-29 01:10:27,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:10:27,681 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 864 transitions. [2023-11-29 01:10:27,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (29), 5 states have call predecessors, (29), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-11-29 01:10:27,682 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 864 transitions. [2023-11-29 01:10:27,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-29 01:10:27,686 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:10:27,686 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:10:27,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 01:10:27,686 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:10:27,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:10:27,687 INFO L85 PathProgramCache]: Analyzing trace with hash -114233438, now seen corresponding path program 1 times [2023-11-29 01:10:27,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:10:27,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878197774] [2023-11-29 01:10:27,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:27,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:10:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:27,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:27,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:27,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:10:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:27,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:10:27,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:27,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:10:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:27,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:10:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:27,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:10:27,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:27,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:10:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:27,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:10:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:27,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 01:10:27,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:27,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:27,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:27,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 01:10:27,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:27,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:27,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 01:10:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:27,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:27,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-29 01:10:27,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:27,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-29 01:10:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:27,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 01:10:27,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:27,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-29 01:10:27,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:27,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-29 01:10:27,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:27,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-29 01:10:27,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:27,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:10:27,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:27,915 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-29 01:10:27,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:10:27,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878197774] [2023-11-29 01:10:27,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878197774] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:10:27,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438891169] [2023-11-29 01:10:27,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:27,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:10:27,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:10:27,917 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:10:27,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 01:10:28,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:28,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 1433 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:10:28,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:10:28,299 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-29 01:10:28,299 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:10:28,393 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-29 01:10:28,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438891169] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:10:28,394 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 01:10:28,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2023-11-29 01:10:28,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468083342] [2023-11-29 01:10:28,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 01:10:28,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:10:28,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:10:28,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:10:28,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:10:28,397 INFO L87 Difference]: Start difference. First operand 578 states and 864 transitions. Second operand has 10 states, 10 states have (on average 12.2) internal successors, (122), 7 states have internal predecessors, (122), 2 states have call successors, (45), 5 states have call predecessors, (45), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-29 01:10:30,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:10:30,839 INFO L93 Difference]: Finished difference Result 1370 states and 2153 transitions. [2023-11-29 01:10:30,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:10:30,840 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 7 states have internal predecessors, (122), 2 states have call successors, (45), 5 states have call predecessors, (45), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 154 [2023-11-29 01:10:30,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:10:30,846 INFO L225 Difference]: With dead ends: 1370 [2023-11-29 01:10:30,846 INFO L226 Difference]: Without dead ends: 1060 [2023-11-29 01:10:30,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:10:30,848 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 1810 mSDsluCounter, 1824 mSDsCounter, 0 mSdLazyCounter, 4104 mSolverCounterSat, 717 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1872 SdHoareTripleChecker+Valid, 2133 SdHoareTripleChecker+Invalid, 4821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 717 IncrementalHoareTripleChecker+Valid, 4104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:10:30,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1872 Valid, 2133 Invalid, 4821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [717 Valid, 4104 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 01:10:30,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2023-11-29 01:10:30,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 923. [2023-11-29 01:10:30,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 715 states have (on average 1.5944055944055944) internal successors, (1140), 742 states have internal predecessors, (1140), 160 states have call successors, (160), 43 states have call predecessors, (160), 47 states have return successors, (167), 160 states have call predecessors, (167), 159 states have call successors, (167) [2023-11-29 01:10:30,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1467 transitions. [2023-11-29 01:10:30,896 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1467 transitions. Word has length 154 [2023-11-29 01:10:30,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:10:30,896 INFO L495 AbstractCegarLoop]: Abstraction has 923 states and 1467 transitions. [2023-11-29 01:10:30,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 7 states have internal predecessors, (122), 2 states have call successors, (45), 5 states have call predecessors, (45), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-29 01:10:30,897 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1467 transitions. [2023-11-29 01:10:30,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-29 01:10:30,901 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:10:30,901 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:10:30,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 01:10:31,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 01:10:31,102 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:10:31,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:10:31,102 INFO L85 PathProgramCache]: Analyzing trace with hash 541442649, now seen corresponding path program 1 times [2023-11-29 01:10:31,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:10:31,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786715476] [2023-11-29 01:10:31,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:31,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:10:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:31,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:31,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:10:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:31,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:10:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:31,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:10:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:31,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:10:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:31,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:10:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:31,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:10:31,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:31,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:10:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:31,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 01:10:31,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:31,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:31,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 01:10:31,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:31,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:31,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 01:10:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:31,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:31,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:31,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-29 01:10:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:31,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-29 01:10:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:31,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-29 01:10:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:31,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-29 01:10:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:31,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-29 01:10:31,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:31,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-29 01:10:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:31,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:10:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:31,296 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-29 01:10:31,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:10:31,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786715476] [2023-11-29 01:10:31,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786715476] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:10:31,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:10:31,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:10:31,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322321557] [2023-11-29 01:10:31,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:10:31,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:10:31,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:10:31,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:10:31,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:10:31,299 INFO L87 Difference]: Start difference. First operand 923 states and 1467 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:10:33,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:10:33,072 INFO L93 Difference]: Finished difference Result 2127 states and 3449 transitions. [2023-11-29 01:10:33,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:10:33,073 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 159 [2023-11-29 01:10:33,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:10:33,081 INFO L225 Difference]: With dead ends: 2127 [2023-11-29 01:10:33,081 INFO L226 Difference]: Without dead ends: 1313 [2023-11-29 01:10:33,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:10:33,084 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 1481 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 1807 mSolverCounterSat, 627 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 2434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 627 IncrementalHoareTripleChecker+Valid, 1807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:10:33,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1108 Invalid, 2434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [627 Valid, 1807 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 01:10:33,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2023-11-29 01:10:33,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 1186. [2023-11-29 01:10:33,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1186 states, 936 states have (on average 1.607905982905983) internal successors, (1505), 969 states have internal predecessors, (1505), 202 states have call successors, (202), 43 states have call predecessors, (202), 47 states have return successors, (209), 202 states have call predecessors, (209), 201 states have call successors, (209) [2023-11-29 01:10:33,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 1916 transitions. [2023-11-29 01:10:33,167 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 1916 transitions. Word has length 159 [2023-11-29 01:10:33,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:10:33,167 INFO L495 AbstractCegarLoop]: Abstraction has 1186 states and 1916 transitions. [2023-11-29 01:10:33,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:10:33,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 1916 transitions. [2023-11-29 01:10:33,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-29 01:10:33,173 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:10:33,173 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:10:33,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 01:10:33,173 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:10:33,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:10:33,173 INFO L85 PathProgramCache]: Analyzing trace with hash 488343797, now seen corresponding path program 1 times [2023-11-29 01:10:33,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:10:33,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111840204] [2023-11-29 01:10:33,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:33,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:10:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:33,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:33,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:33,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:10:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:33,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:10:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:33,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:10:33,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:33,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:10:33,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:33,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:10:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:33,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:10:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:33,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:10:33,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:33,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 01:10:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:33,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:33,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 01:10:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:33,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:33,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:33,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 01:10:33,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:33,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:33,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-29 01:10:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:33,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-29 01:10:33,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:33,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-29 01:10:33,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:33,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-29 01:10:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:33,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-29 01:10:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:33,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-11-29 01:10:33,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:33,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:10:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:33,308 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-29 01:10:33,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:10:33,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111840204] [2023-11-29 01:10:33,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111840204] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:10:33,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:10:33,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:10:33,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062027103] [2023-11-29 01:10:33,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:10:33,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:10:33,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:10:33,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:10:33,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:10:33,311 INFO L87 Difference]: Start difference. First operand 1186 states and 1916 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:10:34,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:10:34,957 INFO L93 Difference]: Finished difference Result 2859 states and 4709 transitions. [2023-11-29 01:10:34,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:10:34,958 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 160 [2023-11-29 01:10:34,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:10:34,967 INFO L225 Difference]: With dead ends: 2859 [2023-11-29 01:10:34,968 INFO L226 Difference]: Without dead ends: 1801 [2023-11-29 01:10:34,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:10:34,971 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 1486 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 1783 mSolverCounterSat, 633 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 2416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 633 IncrementalHoareTripleChecker+Valid, 1783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:10:34,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 1127 Invalid, 2416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [633 Valid, 1783 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 01:10:34,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2023-11-29 01:10:35,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1674. [2023-11-29 01:10:35,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1674 states, 1345 states have (on average 1.625278810408922) internal successors, (2186), 1388 states have internal predecessors, (2186), 281 states have call successors, (281), 43 states have call predecessors, (281), 47 states have return successors, (288), 281 states have call predecessors, (288), 280 states have call successors, (288) [2023-11-29 01:10:35,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1674 states to 1674 states and 2755 transitions. [2023-11-29 01:10:35,068 INFO L78 Accepts]: Start accepts. Automaton has 1674 states and 2755 transitions. Word has length 160 [2023-11-29 01:10:35,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:10:35,068 INFO L495 AbstractCegarLoop]: Abstraction has 1674 states and 2755 transitions. [2023-11-29 01:10:35,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:10:35,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1674 states and 2755 transitions. [2023-11-29 01:10:35,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-29 01:10:35,079 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:10:35,080 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:10:35,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 01:10:35,080 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:10:35,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:10:35,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1847496736, now seen corresponding path program 1 times [2023-11-29 01:10:35,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:10:35,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354277921] [2023-11-29 01:10:35,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:35,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:10:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:35,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:35,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:35,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:10:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:35,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:10:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:35,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:10:35,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:35,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:10:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:35,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:10:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:35,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:10:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:35,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:10:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:35,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 01:10:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:35,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:35,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 01:10:35,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:35,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:35,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 01:10:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:35,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:35,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 01:10:35,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:35,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-29 01:10:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:35,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-29 01:10:35,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:35,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-29 01:10:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:35,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-29 01:10:35,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:35,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-29 01:10:35,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:35,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:10:35,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:35,235 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-29 01:10:35,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:10:35,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354277921] [2023-11-29 01:10:35,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354277921] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:10:35,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:10:35,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:10:35,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853784750] [2023-11-29 01:10:35,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:10:35,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:10:35,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:10:35,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:10:35,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:10:35,238 INFO L87 Difference]: Start difference. First operand 1674 states and 2755 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:10:37,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:10:37,154 INFO L93 Difference]: Finished difference Result 4070 states and 6798 transitions. [2023-11-29 01:10:37,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:10:37,154 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 161 [2023-11-29 01:10:37,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:10:37,168 INFO L225 Difference]: With dead ends: 4070 [2023-11-29 01:10:37,168 INFO L226 Difference]: Without dead ends: 2584 [2023-11-29 01:10:37,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:10:37,174 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 1471 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 1820 mSolverCounterSat, 629 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 2449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 629 IncrementalHoareTripleChecker+Valid, 1820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:10:37,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1139 Invalid, 2449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [629 Valid, 1820 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 01:10:37,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2584 states. [2023-11-29 01:10:37,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2584 to 2457. [2023-11-29 01:10:37,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2457 states, 2009 states have (on average 1.6391239422598307) internal successors, (3293), 2068 states have internal predecessors, (3293), 400 states have call successors, (400), 43 states have call predecessors, (400), 47 states have return successors, (407), 400 states have call predecessors, (407), 399 states have call successors, (407) [2023-11-29 01:10:37,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2457 states to 2457 states and 4100 transitions. [2023-11-29 01:10:37,304 INFO L78 Accepts]: Start accepts. Automaton has 2457 states and 4100 transitions. Word has length 161 [2023-11-29 01:10:37,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:10:37,304 INFO L495 AbstractCegarLoop]: Abstraction has 2457 states and 4100 transitions. [2023-11-29 01:10:37,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:10:37,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2457 states and 4100 transitions. [2023-11-29 01:10:37,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-29 01:10:37,321 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:10:37,321 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:10:37,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 01:10:37,322 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:10:37,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:10:37,322 INFO L85 PathProgramCache]: Analyzing trace with hash -419829441, now seen corresponding path program 1 times [2023-11-29 01:10:37,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:10:37,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695891995] [2023-11-29 01:10:37,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:37,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:10:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:37,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:37,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:10:37,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:37,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:10:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:37,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:10:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:37,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:10:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:37,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:10:37,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:37,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:10:37,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:37,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:10:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:37,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 01:10:37,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:37,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:37,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:37,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 01:10:37,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:37,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:37,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:37,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 01:10:37,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:37,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:37,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-29 01:10:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:37,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 01:10:37,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:37,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-29 01:10:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:37,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-29 01:10:37,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:37,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-29 01:10:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:37,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-29 01:10:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:37,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:10:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:37,503 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-29 01:10:37,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:10:37,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695891995] [2023-11-29 01:10:37,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695891995] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:10:37,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:10:37,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:10:37,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289425925] [2023-11-29 01:10:37,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:10:37,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:10:37,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:10:37,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:10:37,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:10:37,506 INFO L87 Difference]: Start difference. First operand 2457 states and 4100 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:10:39,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:10:39,173 INFO L93 Difference]: Finished difference Result 5908 states and 9969 transitions. [2023-11-29 01:10:39,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:10:39,173 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 162 [2023-11-29 01:10:39,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:10:39,192 INFO L225 Difference]: With dead ends: 5908 [2023-11-29 01:10:39,192 INFO L226 Difference]: Without dead ends: 3789 [2023-11-29 01:10:39,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:10:39,198 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 1475 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 1806 mSolverCounterSat, 628 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 2434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 628 IncrementalHoareTripleChecker+Valid, 1806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:10:39,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 1137 Invalid, 2434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [628 Valid, 1806 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 01:10:39,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3789 states. [2023-11-29 01:10:39,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3789 to 3662. [2023-11-29 01:10:39,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3662 states, 3052 states have (on average 1.6500655307994758) internal successors, (5036), 3137 states have internal predecessors, (5036), 562 states have call successors, (562), 43 states have call predecessors, (562), 47 states have return successors, (569), 562 states have call predecessors, (569), 561 states have call successors, (569) [2023-11-29 01:10:39,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3662 states to 3662 states and 6167 transitions. [2023-11-29 01:10:39,428 INFO L78 Accepts]: Start accepts. Automaton has 3662 states and 6167 transitions. Word has length 162 [2023-11-29 01:10:39,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:10:39,429 INFO L495 AbstractCegarLoop]: Abstraction has 3662 states and 6167 transitions. [2023-11-29 01:10:39,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:10:39,429 INFO L276 IsEmpty]: Start isEmpty. Operand 3662 states and 6167 transitions. [2023-11-29 01:10:39,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-29 01:10:39,453 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:10:39,453 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:10:39,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 01:10:39,453 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:10:39,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:10:39,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1363527751, now seen corresponding path program 1 times [2023-11-29 01:10:39,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:10:39,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175614326] [2023-11-29 01:10:39,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:39,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:10:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:39,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:39,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:10:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:39,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:10:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:39,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:10:39,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:39,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:10:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:39,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:10:39,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:39,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:10:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:39,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:10:39,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:39,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 01:10:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:39,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:39,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 01:10:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:39,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:39,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:39,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 01:10:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:39,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:39,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-29 01:10:39,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:39,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-29 01:10:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:39,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-29 01:10:39,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:39,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-29 01:10:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:39,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-29 01:10:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:39,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-29 01:10:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:39,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:10:39,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:39,601 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-29 01:10:39,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:10:39,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175614326] [2023-11-29 01:10:39,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175614326] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:10:39,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:10:39,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:10:39,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041770041] [2023-11-29 01:10:39,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:10:39,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:10:39,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:10:39,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:10:39,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:10:39,603 INFO L87 Difference]: Start difference. First operand 3662 states and 6167 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:10:41,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:10:41,385 INFO L93 Difference]: Finished difference Result 8808 states and 14974 transitions. [2023-11-29 01:10:41,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:10:41,385 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 163 [2023-11-29 01:10:41,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:10:41,420 INFO L225 Difference]: With dead ends: 8808 [2023-11-29 01:10:41,420 INFO L226 Difference]: Without dead ends: 5733 [2023-11-29 01:10:41,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:10:41,430 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 1479 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 1780 mSolverCounterSat, 631 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 2411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 631 IncrementalHoareTripleChecker+Valid, 1780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:10:41,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 1139 Invalid, 2411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [631 Valid, 1780 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 01:10:41,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5733 states. [2023-11-29 01:10:41,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5733 to 5606. [2023-11-29 01:10:41,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5606 states, 4751 states have (on average 1.6583877078509788) internal successors, (7879), 4880 states have internal predecessors, (7879), 807 states have call successors, (807), 43 states have call predecessors, (807), 47 states have return successors, (814), 807 states have call predecessors, (814), 806 states have call successors, (814) [2023-11-29 01:10:41,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5606 states to 5606 states and 9500 transitions. [2023-11-29 01:10:41,699 INFO L78 Accepts]: Start accepts. Automaton has 5606 states and 9500 transitions. Word has length 163 [2023-11-29 01:10:41,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:10:41,700 INFO L495 AbstractCegarLoop]: Abstraction has 5606 states and 9500 transitions. [2023-11-29 01:10:41,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:10:41,700 INFO L276 IsEmpty]: Start isEmpty. Operand 5606 states and 9500 transitions. [2023-11-29 01:10:41,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-11-29 01:10:41,755 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:10:41,756 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:10:41,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 01:10:41,756 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:10:41,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:10:41,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1924471801, now seen corresponding path program 1 times [2023-11-29 01:10:41,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:10:41,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212483716] [2023-11-29 01:10:41,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:41,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:10:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:41,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:41,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:10:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:41,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:10:41,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:41,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:10:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:41,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:10:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:41,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:10:41,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:41,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:10:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:41,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:10:41,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:41,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 01:10:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:41,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:41,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:41,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 01:10:41,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:41,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:41,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 01:10:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:41,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:41,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-29 01:10:41,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:41,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 01:10:41,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:41,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-29 01:10:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:41,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-29 01:10:41,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:41,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-29 01:10:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:41,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-29 01:10:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:41,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:10:41,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:41,873 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-29 01:10:41,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:10:41,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212483716] [2023-11-29 01:10:41,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212483716] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:10:41,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:10:41,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:10:41,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086279882] [2023-11-29 01:10:41,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:10:41,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:10:41,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:10:41,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:10:41,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:10:41,875 INFO L87 Difference]: Start difference. First operand 5606 states and 9500 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:10:43,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:10:43,799 INFO L93 Difference]: Finished difference Result 13677 states and 23345 transitions. [2023-11-29 01:10:43,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:10:43,799 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 164 [2023-11-29 01:10:43,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:10:43,837 INFO L225 Difference]: With dead ends: 13677 [2023-11-29 01:10:43,838 INFO L226 Difference]: Without dead ends: 9025 [2023-11-29 01:10:43,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:10:43,849 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 1470 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 1800 mSolverCounterSat, 633 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 2433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 633 IncrementalHoareTripleChecker+Valid, 1800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:10:43,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1138 Invalid, 2433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [633 Valid, 1800 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 01:10:43,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9025 states. [2023-11-29 01:10:44,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9025 to 8898. [2023-11-29 01:10:44,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8898 states, 7550 states have (on average 1.6574834437086092) internal successors, (12514), 7757 states have internal predecessors, (12514), 1300 states have call successors, (1300), 43 states have call predecessors, (1300), 47 states have return successors, (1307), 1300 states have call predecessors, (1307), 1299 states have call successors, (1307) [2023-11-29 01:10:44,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8898 states to 8898 states and 15121 transitions. [2023-11-29 01:10:44,257 INFO L78 Accepts]: Start accepts. Automaton has 8898 states and 15121 transitions. Word has length 164 [2023-11-29 01:10:44,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:10:44,257 INFO L495 AbstractCegarLoop]: Abstraction has 8898 states and 15121 transitions. [2023-11-29 01:10:44,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:10:44,258 INFO L276 IsEmpty]: Start isEmpty. Operand 8898 states and 15121 transitions. [2023-11-29 01:10:44,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-29 01:10:44,317 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:10:44,317 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:10:44,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 01:10:44,318 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:10:44,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:10:44,318 INFO L85 PathProgramCache]: Analyzing trace with hash 92747580, now seen corresponding path program 1 times [2023-11-29 01:10:44,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:10:44,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421319849] [2023-11-29 01:10:44,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:44,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:10:44,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:44,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:44,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:44,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:10:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:44,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:10:44,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:44,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:10:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:44,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:10:44,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:44,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:10:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:44,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:10:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:44,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:10:44,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:44,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 01:10:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:44,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:44,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 01:10:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:44,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:44,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:44,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 01:10:44,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:44,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:44,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:44,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-29 01:10:44,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:44,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-29 01:10:44,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:44,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-29 01:10:44,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:44,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-29 01:10:44,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:44,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-11-29 01:10:44,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:44,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-29 01:10:44,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:44,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:10:44,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:44,460 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-29 01:10:44,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:10:44,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421319849] [2023-11-29 01:10:44,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421319849] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:10:44,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:10:44,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:10:44,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256939781] [2023-11-29 01:10:44,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:10:44,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:10:44,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:10:44,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:10:44,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:10:44,463 INFO L87 Difference]: Start difference. First operand 8898 states and 15121 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:10:46,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:10:46,448 INFO L93 Difference]: Finished difference Result 22374 states and 38316 transitions. [2023-11-29 01:10:46,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:10:46,448 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 165 [2023-11-29 01:10:46,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:10:46,501 INFO L225 Difference]: With dead ends: 22374 [2023-11-29 01:10:46,501 INFO L226 Difference]: Without dead ends: 14910 [2023-11-29 01:10:46,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:10:46,525 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 1474 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 1794 mSolverCounterSat, 622 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 2416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 622 IncrementalHoareTripleChecker+Valid, 1794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:10:46,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 1152 Invalid, 2416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [622 Valid, 1794 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 01:10:46,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14910 states. [2023-11-29 01:10:47,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14910 to 14783. [2023-11-29 01:10:47,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14783 states, 12613 states have (on average 1.6609054150479663) internal successors, (20949), 12964 states have internal predecessors, (20949), 2122 states have call successors, (2122), 43 states have call predecessors, (2122), 47 states have return successors, (2129), 2122 states have call predecessors, (2129), 2121 states have call successors, (2129) [2023-11-29 01:10:47,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14783 states to 14783 states and 25200 transitions. [2023-11-29 01:10:47,071 INFO L78 Accepts]: Start accepts. Automaton has 14783 states and 25200 transitions. Word has length 165 [2023-11-29 01:10:47,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:10:47,071 INFO L495 AbstractCegarLoop]: Abstraction has 14783 states and 25200 transitions. [2023-11-29 01:10:47,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:10:47,071 INFO L276 IsEmpty]: Start isEmpty. Operand 14783 states and 25200 transitions. [2023-11-29 01:10:47,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-29 01:10:47,174 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:10:47,174 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:10:47,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 01:10:47,174 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:10:47,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:10:47,174 INFO L85 PathProgramCache]: Analyzing trace with hash 2071399907, now seen corresponding path program 1 times [2023-11-29 01:10:47,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:10:47,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660275882] [2023-11-29 01:10:47,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:47,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:10:47,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:47,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:47,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:47,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:10:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:47,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:10:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:47,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:10:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:47,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:10:47,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:47,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:10:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:47,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:10:47,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:47,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:10:47,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:47,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 01:10:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:47,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:47,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 01:10:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:47,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:47,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:47,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 01:10:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:47,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:47,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-29 01:10:47,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:47,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-29 01:10:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:47,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-29 01:10:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:47,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-29 01:10:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:47,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-29 01:10:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:47,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-29 01:10:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:47,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:10:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:47,282 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-29 01:10:47,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:10:47,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660275882] [2023-11-29 01:10:47,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660275882] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:10:47,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:10:47,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:10:47,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253694957] [2023-11-29 01:10:47,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:10:47,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:10:47,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:10:47,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:10:47,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:10:47,284 INFO L87 Difference]: Start difference. First operand 14783 states and 25200 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:10:49,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:10:49,312 INFO L93 Difference]: Finished difference Result 35666 states and 60811 transitions. [2023-11-29 01:10:49,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:10:49,312 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 166 [2023-11-29 01:10:49,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:10:49,361 INFO L225 Difference]: With dead ends: 35666 [2023-11-29 01:10:49,362 INFO L226 Difference]: Without dead ends: 23426 [2023-11-29 01:10:49,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:10:49,381 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 1459 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 1803 mSolverCounterSat, 617 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 2420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 617 IncrementalHoareTripleChecker+Valid, 1803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:10:49,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1111 Invalid, 2420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [617 Valid, 1803 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 01:10:49,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23426 states. [2023-11-29 01:10:50,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23426 to 23299. [2023-11-29 01:10:50,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23299 states, 19926 states have (on average 1.645337749673793) internal successors, (32785), 20551 states have internal predecessors, (32785), 3325 states have call successors, (3325), 43 states have call predecessors, (3325), 47 states have return successors, (3332), 3325 states have call predecessors, (3332), 3324 states have call successors, (3332) [2023-11-29 01:10:50,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23299 states to 23299 states and 39442 transitions. [2023-11-29 01:10:50,404 INFO L78 Accepts]: Start accepts. Automaton has 23299 states and 39442 transitions. Word has length 166 [2023-11-29 01:10:50,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:10:50,404 INFO L495 AbstractCegarLoop]: Abstraction has 23299 states and 39442 transitions. [2023-11-29 01:10:50,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:10:50,404 INFO L276 IsEmpty]: Start isEmpty. Operand 23299 states and 39442 transitions. [2023-11-29 01:10:50,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-11-29 01:10:50,455 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:10:50,455 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:10:50,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 01:10:50,455 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:10:50,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:10:50,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1383331988, now seen corresponding path program 1 times [2023-11-29 01:10:50,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:10:50,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024367615] [2023-11-29 01:10:50,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:50,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:10:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:50,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:50,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:10:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:50,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:10:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:50,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:10:50,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:50,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:10:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:50,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:10:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:50,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:10:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:50,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:10:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:50,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 01:10:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:50,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:50,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 01:10:50,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:50,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:50,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 01:10:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:50,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:50,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 01:10:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:50,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-29 01:10:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:50,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-29 01:10:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:50,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-29 01:10:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:50,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-11-29 01:10:50,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:50,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-29 01:10:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:50,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:10:50,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:50,655 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-29 01:10:50,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:10:50,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024367615] [2023-11-29 01:10:50,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024367615] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:10:50,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:10:50,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:10:50,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135614257] [2023-11-29 01:10:50,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:10:50,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:10:50,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:10:50,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:10:50,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:10:50,658 INFO L87 Difference]: Start difference. First operand 23299 states and 39442 transitions. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:10:53,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:10:53,204 INFO L93 Difference]: Finished difference Result 61518 states and 104470 transitions. [2023-11-29 01:10:53,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:10:53,205 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 167 [2023-11-29 01:10:53,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:10:53,299 INFO L225 Difference]: With dead ends: 61518 [2023-11-29 01:10:53,299 INFO L226 Difference]: Without dead ends: 41545 [2023-11-29 01:10:53,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:10:53,329 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 1471 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 1791 mSolverCounterSat, 631 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 2422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 631 IncrementalHoareTripleChecker+Valid, 1791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:10:53,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1144 Invalid, 2422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [631 Valid, 1791 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 01:10:53,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41545 states. [2023-11-29 01:10:55,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41545 to 41418. [2023-11-29 01:10:55,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41418 states, 35595 states have (on average 1.6413822166034555) internal successors, (58425), 36486 states have internal predecessors, (58425), 5775 states have call successors, (5775), 43 states have call predecessors, (5775), 47 states have return successors, (5782), 5775 states have call predecessors, (5782), 5774 states have call successors, (5782) [2023-11-29 01:10:55,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41418 states to 41418 states and 69982 transitions. [2023-11-29 01:10:55,195 INFO L78 Accepts]: Start accepts. Automaton has 41418 states and 69982 transitions. Word has length 167 [2023-11-29 01:10:55,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:10:55,196 INFO L495 AbstractCegarLoop]: Abstraction has 41418 states and 69982 transitions. [2023-11-29 01:10:55,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:10:55,196 INFO L276 IsEmpty]: Start isEmpty. Operand 41418 states and 69982 transitions. [2023-11-29 01:10:55,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-29 01:10:55,300 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:10:55,300 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:10:55,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 01:10:55,300 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:10:55,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:10:55,301 INFO L85 PathProgramCache]: Analyzing trace with hash -463539841, now seen corresponding path program 1 times [2023-11-29 01:10:55,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:10:55,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280252363] [2023-11-29 01:10:55,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:55,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:10:55,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:55,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:55,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:10:55,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:55,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:10:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:55,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:10:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:55,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:10:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:55,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:10:55,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:55,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:10:55,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:55,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:10:55,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:55,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 01:10:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:55,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:55,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 01:10:55,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:55,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:55,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 01:10:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:55,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:10:55,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:55,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-29 01:10:55,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:55,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-29 01:10:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:55,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-29 01:10:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:55,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-29 01:10:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:55,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-29 01:10:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:55,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-29 01:10:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:55,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:10:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:55,438 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-29 01:10:55,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:10:55,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280252363] [2023-11-29 01:10:55,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280252363] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:10:55,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:10:55,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:10:55,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801176197] [2023-11-29 01:10:55,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:10:55,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:10:55,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:10:55,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:10:55,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:10:55,440 INFO L87 Difference]: Start difference. First operand 41418 states and 69982 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:10:58,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:10:58,906 INFO L93 Difference]: Finished difference Result 112215 states and 190387 transitions. [2023-11-29 01:10:58,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:10:58,907 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 168 [2023-11-29 01:10:58,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:10:59,088 INFO L225 Difference]: With dead ends: 112215 [2023-11-29 01:10:59,088 INFO L226 Difference]: Without dead ends: 75266 [2023-11-29 01:10:59,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:10:59,246 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 1465 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 633 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 2422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 633 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:10:59,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1132 Invalid, 2422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [633 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 01:10:59,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75266 states. [2023-11-29 01:11:01,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75266 to 75139. [2023-11-29 01:11:01,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75139 states, 64803 states have (on average 1.6410505686465133) internal successors, (106345), 66483 states have internal predecessors, (106345), 10288 states have call successors, (10288), 43 states have call predecessors, (10288), 47 states have return successors, (10295), 10288 states have call predecessors, (10295), 10287 states have call successors, (10295) [2023-11-29 01:11:02,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75139 states to 75139 states and 126928 transitions. [2023-11-29 01:11:02,047 INFO L78 Accepts]: Start accepts. Automaton has 75139 states and 126928 transitions. Word has length 168 [2023-11-29 01:11:02,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:11:02,047 INFO L495 AbstractCegarLoop]: Abstraction has 75139 states and 126928 transitions. [2023-11-29 01:11:02,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:11:02,047 INFO L276 IsEmpty]: Start isEmpty. Operand 75139 states and 126928 transitions. [2023-11-29 01:11:02,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-29 01:11:02,147 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:11:02,148 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:11:02,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 01:11:02,148 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:11:02,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:11:02,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1074735310, now seen corresponding path program 1 times [2023-11-29 01:11:02,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:11:02,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257522538] [2023-11-29 01:11:02,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:11:02,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:11:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:02,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:11:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:02,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:11:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:02,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:11:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:02,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:11:02,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:02,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:11:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:02,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:11:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:02,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:11:02,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:02,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:11:02,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:02,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 01:11:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:02,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:11:02,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:02,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 01:11:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:02,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:11:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:02,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 01:11:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:02,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:11:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:02,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 01:11:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:02,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-29 01:11:02,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:02,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-29 01:11:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:02,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-29 01:11:02,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:02,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-29 01:11:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:02,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-11-29 01:11:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:02,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:11:02,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:02,303 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-29 01:11:02,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:11:02,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257522538] [2023-11-29 01:11:02,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257522538] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:11:02,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:11:02,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:11:02,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454869991] [2023-11-29 01:11:02,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:11:02,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:11:02,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:11:02,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:11:02,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:11:02,306 INFO L87 Difference]: Start difference. First operand 75139 states and 126928 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:11:06,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:11:06,553 INFO L93 Difference]: Finished difference Result 140399 states and 237261 transitions. [2023-11-29 01:11:06,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:11:06,553 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 169 [2023-11-29 01:11:06,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:11:06,904 INFO L225 Difference]: With dead ends: 140399 [2023-11-29 01:11:06,904 INFO L226 Difference]: Without dead ends: 140089 [2023-11-29 01:11:06,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:11:06,937 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 1462 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 1777 mSolverCounterSat, 636 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 2413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 636 IncrementalHoareTripleChecker+Valid, 1777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:11:06,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1133 Invalid, 2413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [636 Valid, 1777 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 01:11:07,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140089 states. [2023-11-29 01:11:10,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140089 to 139962. [2023-11-29 01:11:10,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139962 states, 121258 states have (on average 1.634407626713289) internal successors, (198185), 123461 states have internal predecessors, (198185), 18656 states have call successors, (18656), 43 states have call predecessors, (18656), 47 states have return successors, (18663), 18656 states have call predecessors, (18663), 18655 states have call successors, (18663) [2023-11-29 01:11:11,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139962 states to 139962 states and 235504 transitions. [2023-11-29 01:11:11,212 INFO L78 Accepts]: Start accepts. Automaton has 139962 states and 235504 transitions. Word has length 169 [2023-11-29 01:11:11,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:11:11,213 INFO L495 AbstractCegarLoop]: Abstraction has 139962 states and 235504 transitions. [2023-11-29 01:11:11,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:11:11,213 INFO L276 IsEmpty]: Start isEmpty. Operand 139962 states and 235504 transitions. [2023-11-29 01:11:11,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-29 01:11:11,718 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:11:11,718 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:11:11,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 01:11:11,719 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:11:11,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:11:11,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1197605400, now seen corresponding path program 1 times [2023-11-29 01:11:11,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:11:11,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726136906] [2023-11-29 01:11:11,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:11:11,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:11:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:12,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:11:12,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:12,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:11:12,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:12,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:11:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:12,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:11:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:12,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:11:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:12,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:11:12,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:12,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:11:12,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:12,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:11:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:12,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 01:11:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:12,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:11:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:12,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 01:11:12,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:12,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:11:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:12,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 01:11:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:12,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:11:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:12,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-29 01:11:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:12,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-29 01:11:12,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:12,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-29 01:11:12,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:12,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-29 01:11:12,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:12,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-29 01:11:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:12,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-11-29 01:11:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:12,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:11:12,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:12,933 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 01:11:12,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:11:12,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726136906] [2023-11-29 01:11:12,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726136906] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:11:12,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927618169] [2023-11-29 01:11:12,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:11:12,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:11:12,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:11:12,935 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:11:12,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 01:11:13,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:13,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 1495 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-29 01:11:13,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:11:13,802 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-11-29 01:11:13,802 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:11:13,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927618169] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:11:13,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:11:13,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [28] total 46 [2023-11-29 01:11:13,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582086112] [2023-11-29 01:11:13,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:11:13,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 01:11:13,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:11:13,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 01:11:13,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1960, Unknown=0, NotChecked=0, Total=2070 [2023-11-29 01:11:13,805 INFO L87 Difference]: Start difference. First operand 139962 states and 235504 transitions. Second operand has 20 states, 18 states have (on average 6.111111111111111) internal successors, (110), 15 states have internal predecessors, (110), 9 states have call successors, (29), 8 states have call predecessors, (29), 6 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) [2023-11-29 01:11:18,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:11:18,373 INFO L93 Difference]: Finished difference Result 140718 states and 236621 transitions. [2023-11-29 01:11:18,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-29 01:11:18,374 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 6.111111111111111) internal successors, (110), 15 states have internal predecessors, (110), 9 states have call successors, (29), 8 states have call predecessors, (29), 6 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) Word has length 170 [2023-11-29 01:11:18,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:11:18,915 INFO L225 Difference]: With dead ends: 140718 [2023-11-29 01:11:18,916 INFO L226 Difference]: Without dead ends: 140415 [2023-11-29 01:11:18,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 856 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=410, Invalid=4992, Unknown=0, NotChecked=0, Total=5402 [2023-11-29 01:11:18,961 INFO L413 NwaCegarLoop]: 861 mSDtfsCounter, 1669 mSDsluCounter, 13999 mSDsCounter, 0 mSdLazyCounter, 1977 mSolverCounterSat, 407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1679 SdHoareTripleChecker+Valid, 14860 SdHoareTripleChecker+Invalid, 2384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 1977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:11:18,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1679 Valid, 14860 Invalid, 2384 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [407 Valid, 1977 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 01:11:19,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140415 states. [2023-11-29 01:11:23,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140415 to 140387. [2023-11-29 01:11:23,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140387 states, 121552 states have (on average 1.6339179939449784) internal successors, (198606), 123775 states have internal predecessors, (198606), 18747 states have call successors, (18747), 77 states have call predecessors, (18747), 87 states have return successors, (18788), 18752 states have call predecessors, (18788), 18745 states have call successors, (18788) [2023-11-29 01:11:23,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140387 states to 140387 states and 236141 transitions. [2023-11-29 01:11:23,643 INFO L78 Accepts]: Start accepts. Automaton has 140387 states and 236141 transitions. Word has length 170 [2023-11-29 01:11:23,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:11:23,643 INFO L495 AbstractCegarLoop]: Abstraction has 140387 states and 236141 transitions. [2023-11-29 01:11:23,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 6.111111111111111) internal successors, (110), 15 states have internal predecessors, (110), 9 states have call successors, (29), 8 states have call predecessors, (29), 6 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) [2023-11-29 01:11:23,644 INFO L276 IsEmpty]: Start isEmpty. Operand 140387 states and 236141 transitions. [2023-11-29 01:11:24,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-11-29 01:11:24,099 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:11:24,099 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:11:24,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 01:11:24,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 01:11:24,300 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:11:24,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:11:24,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1174353873, now seen corresponding path program 1 times [2023-11-29 01:11:24,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:11:24,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971298176] [2023-11-29 01:11:24,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:11:24,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:11:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:24,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:11:24,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:24,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:11:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:24,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:11:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:24,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:11:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:24,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:11:24,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:24,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:11:24,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:24,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:11:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:24,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:11:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:24,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 01:11:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:24,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:11:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:24,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 01:11:24,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:24,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:11:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:24,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 01:11:24,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:24,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:11:24,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:24,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-29 01:11:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:24,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-29 01:11:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:24,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-29 01:11:24,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:24,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-29 01:11:24,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:24,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-29 01:11:24,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:24,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-29 01:11:24,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:24,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:11:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:24,631 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-29 01:11:24,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:11:24,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971298176] [2023-11-29 01:11:24,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971298176] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:11:24,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:11:24,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:11:24,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780446653] [2023-11-29 01:11:24,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:11:24,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 01:11:24,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:11:24,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 01:11:24,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:11:24,633 INFO L87 Difference]: Start difference. First operand 140387 states and 236141 transitions. Second operand has 11 states, 10 states have (on average 10.6) internal successors, (106), 6 states have internal predecessors, (106), 2 states have call successors, (29), 5 states have call predecessors, (29), 3 states have return successors, (21), 4 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:11:31,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:11:31,612 INFO L93 Difference]: Finished difference Result 275183 states and 463295 transitions. [2023-11-29 01:11:31,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:11:31,612 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.6) internal successors, (106), 6 states have internal predecessors, (106), 2 states have call successors, (29), 5 states have call predecessors, (29), 3 states have return successors, (21), 4 states have call predecessors, (21), 2 states have call successors, (21) Word has length 171 [2023-11-29 01:11:31,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:11:32,015 INFO L225 Difference]: With dead ends: 275183 [2023-11-29 01:11:32,015 INFO L226 Difference]: Without dead ends: 140657 [2023-11-29 01:11:32,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2023-11-29 01:11:32,220 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 1947 mSDsluCounter, 1793 mSDsCounter, 0 mSdLazyCounter, 4692 mSolverCounterSat, 763 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1971 SdHoareTripleChecker+Valid, 2074 SdHoareTripleChecker+Invalid, 5455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 763 IncrementalHoareTripleChecker+Valid, 4692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:11:32,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1971 Valid, 2074 Invalid, 5455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [763 Valid, 4692 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 01:11:32,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140657 states. [2023-11-29 01:11:36,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140657 to 140444. [2023-11-29 01:11:37,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140444 states, 121592 states have (on average 1.6247614974669387) internal successors, (197558), 123813 states have internal predecessors, (197558), 18753 states have call successors, (18753), 78 states have call predecessors, (18753), 98 states have return successors, (18829), 18774 states have call predecessors, (18829), 18751 states have call successors, (18829) [2023-11-29 01:11:37,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140444 states to 140444 states and 235140 transitions. [2023-11-29 01:11:37,452 INFO L78 Accepts]: Start accepts. Automaton has 140444 states and 235140 transitions. Word has length 171 [2023-11-29 01:11:37,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:11:37,452 INFO L495 AbstractCegarLoop]: Abstraction has 140444 states and 235140 transitions. [2023-11-29 01:11:37,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.6) internal successors, (106), 6 states have internal predecessors, (106), 2 states have call successors, (29), 5 states have call predecessors, (29), 3 states have return successors, (21), 4 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 01:11:37,452 INFO L276 IsEmpty]: Start isEmpty. Operand 140444 states and 235140 transitions. [2023-11-29 01:11:37,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-11-29 01:11:37,614 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:11:37,614 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:11:37,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 01:11:37,614 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:11:37,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:11:37,615 INFO L85 PathProgramCache]: Analyzing trace with hash 744757630, now seen corresponding path program 1 times [2023-11-29 01:11:37,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:11:37,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623892841] [2023-11-29 01:11:37,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:11:37,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:11:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:37,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:11:37,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:37,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:11:37,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:37,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:11:37,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:37,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:11:37,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:37,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:11:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:37,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:11:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:37,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:11:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:37,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:11:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:37,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 01:11:37,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:37,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:11:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:37,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 01:11:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:37,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:11:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:37,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 01:11:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:37,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:11:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:37,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-29 01:11:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:37,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-29 01:11:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:37,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-29 01:11:37,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:37,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-29 01:11:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:37,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-29 01:11:37,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:37,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-29 01:11:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:37,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:11:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:37,798 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-29 01:11:37,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:11:37,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623892841] [2023-11-29 01:11:37,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623892841] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:11:37,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:11:37,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:11:37,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960959449] [2023-11-29 01:11:37,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:11:37,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:11:37,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:11:37,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:11:37,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:11:37,801 INFO L87 Difference]: Start difference. First operand 140444 states and 235140 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (29), 5 states have call predecessors, (29), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-29 01:11:49,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:11:49,001 INFO L93 Difference]: Finished difference Result 421633 states and 706287 transitions. [2023-11-29 01:11:49,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 01:11:49,002 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (29), 5 states have call predecessors, (29), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 175 [2023-11-29 01:11:49,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:11:49,506 INFO L225 Difference]: With dead ends: 421633 [2023-11-29 01:11:49,506 INFO L226 Difference]: Without dead ends: 140639 [2023-11-29 01:11:49,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2023-11-29 01:11:49,807 INFO L413 NwaCegarLoop]: 531 mSDtfsCounter, 3858 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 3381 mSolverCounterSat, 1455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3912 SdHoareTripleChecker+Valid, 2090 SdHoareTripleChecker+Invalid, 4836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1455 IncrementalHoareTripleChecker+Valid, 3381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:11:49,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3912 Valid, 2090 Invalid, 4836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1455 Valid, 3381 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-29 01:11:49,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140639 states. [2023-11-29 01:11:54,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140639 to 140426. [2023-11-29 01:11:54,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140426 states, 121582 states have (on average 1.624747084272343) internal successors, (197540), 123800 states have internal predecessors, (197540), 18747 states have call successors, (18747), 78 states have call predecessors, (18747), 96 states have return successors, (18813), 18764 states have call predecessors, (18813), 18745 states have call successors, (18813) [2023-11-29 01:11:54,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140426 states to 140426 states and 235100 transitions. [2023-11-29 01:11:54,849 INFO L78 Accepts]: Start accepts. Automaton has 140426 states and 235100 transitions. Word has length 175 [2023-11-29 01:11:54,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:11:54,849 INFO L495 AbstractCegarLoop]: Abstraction has 140426 states and 235100 transitions. [2023-11-29 01:11:54,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (29), 5 states have call predecessors, (29), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-29 01:11:54,849 INFO L276 IsEmpty]: Start isEmpty. Operand 140426 states and 235100 transitions. [2023-11-29 01:11:55,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-29 01:11:55,451 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:11:55,451 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:11:55,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 01:11:55,452 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:11:55,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:11:55,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1580775299, now seen corresponding path program 1 times [2023-11-29 01:11:55,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:11:55,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776966860] [2023-11-29 01:11:55,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:11:55,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:11:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:55,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:11:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:55,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:11:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:55,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:11:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:55,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:11:55,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:55,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:11:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:55,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:11:55,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:55,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:11:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:55,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:11:55,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:55,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 01:11:55,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:55,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:11:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:55,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-29 01:11:55,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:55,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:11:55,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:55,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 01:11:55,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:55,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:11:55,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:55,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-29 01:11:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:55,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-29 01:11:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:55,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-29 01:11:55,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:55,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-29 01:11:55,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:55,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-29 01:11:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:55,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-29 01:11:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:55,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-29 01:11:55,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:55,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-11-29 01:11:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:55,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:11:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:55,603 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-11-29 01:11:55,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:11:55,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776966860] [2023-11-29 01:11:55,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776966860] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:11:55,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:11:55,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:11:55,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621528177] [2023-11-29 01:11:55,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:11:55,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:11:55,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:11:55,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:11:55,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:11:55,606 INFO L87 Difference]: Start difference. First operand 140426 states and 235100 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-29 01:12:01,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:12:01,874 INFO L93 Difference]: Finished difference Result 280903 states and 470402 transitions. [2023-11-29 01:12:01,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:12:01,875 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 191 [2023-11-29 01:12:01,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:12:02,254 INFO L225 Difference]: With dead ends: 280903 [2023-11-29 01:12:02,254 INFO L226 Difference]: Without dead ends: 140502 [2023-11-29 01:12:02,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:12:02,430 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 2011 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 979 mSolverCounterSat, 774 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2038 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 1753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 774 IncrementalHoareTripleChecker+Valid, 979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:12:02,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2038 Valid, 888 Invalid, 1753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [774 Valid, 979 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 01:12:02,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140502 states. [2023-11-29 01:12:07,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140502 to 140317. [2023-11-29 01:12:07,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140317 states, 121507 states have (on average 1.6248858090480385) internal successors, (197435), 123718 states have internal predecessors, (197435), 18720 states have call successors, (18720), 75 states have call predecessors, (18720), 89 states have return successors, (18771), 18731 states have call predecessors, (18771), 18718 states have call successors, (18771) [2023-11-29 01:12:08,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140317 states to 140317 states and 234926 transitions. [2023-11-29 01:12:08,138 INFO L78 Accepts]: Start accepts. Automaton has 140317 states and 234926 transitions. Word has length 191 [2023-11-29 01:12:08,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:12:08,138 INFO L495 AbstractCegarLoop]: Abstraction has 140317 states and 234926 transitions. [2023-11-29 01:12:08,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-29 01:12:08,138 INFO L276 IsEmpty]: Start isEmpty. Operand 140317 states and 234926 transitions. [2023-11-29 01:12:08,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-11-29 01:12:08,409 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:12:08,409 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:12:08,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 01:12:08,409 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:12:08,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:08,410 INFO L85 PathProgramCache]: Analyzing trace with hash -292787914, now seen corresponding path program 1 times [2023-11-29 01:12:08,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:12:08,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572260127] [2023-11-29 01:12:08,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:08,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:12:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:12:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:12:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:12:08,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:12:08,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:12:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:12:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:12:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:12:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 01:12:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:12:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 01:12:08,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:12:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 01:12:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:12:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-29 01:12:08,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 01:12:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-29 01:12:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-29 01:12:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-29 01:12:08,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-29 01:12:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-29 01:12:08,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-11-29 01:12:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-11-29 01:12:08,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-11-29 01:12:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:12:08,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,808 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-11-29 01:12:08,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:12:08,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572260127] [2023-11-29 01:12:08,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572260127] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:12:08,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:12:08,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:12:08,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441322348] [2023-11-29 01:12:08,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:12:08,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:12:08,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:12:08,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:12:08,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:12:08,812 INFO L87 Difference]: Start difference. First operand 140317 states and 234926 transitions. Second operand has 6 states, 6 states have (on average 21.5) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-29 01:12:15,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:12:15,240 INFO L93 Difference]: Finished difference Result 280764 states and 470116 transitions. [2023-11-29 01:12:15,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:12:15,241 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 205 [2023-11-29 01:12:15,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:12:15,727 INFO L225 Difference]: With dead ends: 280764 [2023-11-29 01:12:15,727 INFO L226 Difference]: Without dead ends: 140493 [2023-11-29 01:12:15,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:12:15,888 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 1942 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 785 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1966 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 785 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:12:15,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1966 Valid, 794 Invalid, 1809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [785 Valid, 1024 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 01:12:15,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140493 states. [2023-11-29 01:12:21,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140493 to 140306. [2023-11-29 01:12:21,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140306 states, 121503 states have (on average 1.5529822308914183) internal successors, (188692), 121525 states have internal predecessors, (188692), 18717 states have call successors, (18717), 75 states have call predecessors, (18717), 85 states have return successors, (18762), 18726 states have call predecessors, (18762), 18715 states have call successors, (18762) [2023-11-29 01:12:21,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140306 states to 140306 states and 226171 transitions. [2023-11-29 01:12:21,658 INFO L78 Accepts]: Start accepts. Automaton has 140306 states and 226171 transitions. Word has length 205 [2023-11-29 01:12:21,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:12:21,659 INFO L495 AbstractCegarLoop]: Abstraction has 140306 states and 226171 transitions. [2023-11-29 01:12:21,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-29 01:12:21,659 INFO L276 IsEmpty]: Start isEmpty. Operand 140306 states and 226171 transitions. [2023-11-29 01:12:21,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-11-29 01:12:21,779 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:12:21,779 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:12:21,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 01:12:21,779 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:12:21,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:21,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1678552340, now seen corresponding path program 1 times [2023-11-29 01:12:21,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:12:21,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903708641] [2023-11-29 01:12:21,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:21,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:12:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:12:22,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:12:22,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:12:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:12:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:12:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:12:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:12:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:12:22,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 01:12:22,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:12:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:12:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 01:12:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:12:22,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-29 01:12:22,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-29 01:12:22,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:12:22,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-29 01:12:22,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-29 01:12:22,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-29 01:12:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-29 01:12:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-29 01:12:22,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-29 01:12:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-29 01:12:22,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-29 01:12:22,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-11-29 01:12:22,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-29 01:12:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-29 01:12:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:12:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,470 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-11-29 01:12:22,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:12:22,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903708641] [2023-11-29 01:12:22,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903708641] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:12:22,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245270137] [2023-11-29 01:12:22,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:22,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:12:22,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:12:22,472 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:12:22,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 01:12:22,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 1707 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 01:12:22,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:12:22,901 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 01:12:22,901 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:12:22,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245270137] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:12:22,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:12:22,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 18 [2023-11-29 01:12:22,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431932071] [2023-11-29 01:12:22,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:12:22,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:12:22,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:12:22,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:12:22,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2023-11-29 01:12:22,902 INFO L87 Difference]: Start difference. First operand 140306 states and 226171 transitions. Second operand has 8 states, 6 states have (on average 23.333333333333332) internal successors, (140), 8 states have internal predecessors, (140), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-29 01:12:27,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:12:27,508 INFO L93 Difference]: Finished difference Result 280555 states and 452270 transitions. [2023-11-29 01:12:27,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:12:27,508 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 23.333333333333332) internal successors, (140), 8 states have internal predecessors, (140), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 220 [2023-11-29 01:12:27,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:12:27,946 INFO L225 Difference]: With dead ends: 280555 [2023-11-29 01:12:27,946 INFO L226 Difference]: Without dead ends: 140310 [2023-11-29 01:12:28,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2023-11-29 01:12:28,196 INFO L413 NwaCegarLoop]: 781 mSDtfsCounter, 12 mSDsluCounter, 4666 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 5447 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:12:28,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 5447 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:12:28,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140310 states. [2023-11-29 01:12:33,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140310 to 140308. [2023-11-29 01:12:33,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140308 states, 121504 states have (on average 1.5529776797471688) internal successors, (188693), 121527 states have internal predecessors, (188693), 18717 states have call successors, (18717), 75 states have call predecessors, (18717), 86 states have return successors, (18763), 18726 states have call predecessors, (18763), 18715 states have call successors, (18763) [2023-11-29 01:12:33,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140308 states to 140308 states and 226173 transitions. [2023-11-29 01:12:33,704 INFO L78 Accepts]: Start accepts. Automaton has 140308 states and 226173 transitions. Word has length 220 [2023-11-29 01:12:33,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:12:33,704 INFO L495 AbstractCegarLoop]: Abstraction has 140308 states and 226173 transitions. [2023-11-29 01:12:33,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 23.333333333333332) internal successors, (140), 8 states have internal predecessors, (140), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-29 01:12:33,705 INFO L276 IsEmpty]: Start isEmpty. Operand 140308 states and 226173 transitions. [2023-11-29 01:12:33,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-11-29 01:12:33,824 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:12:33,824 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:12:33,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 01:12:34,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 01:12:34,025 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:12:34,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:34,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1008558489, now seen corresponding path program 1 times [2023-11-29 01:12:34,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:12:34,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89298798] [2023-11-29 01:12:34,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:34,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:12:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:12:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:12:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:12:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:12:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:12:34,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:12:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:12:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:12:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 01:12:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:12:34,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:12:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 01:12:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:12:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 01:12:34,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-29 01:12:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:12:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-29 01:12:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-29 01:12:34,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-29 01:12:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-29 01:12:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-29 01:12:34,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-29 01:12:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-29 01:12:34,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-11-29 01:12:34,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-29 01:12:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-11-29 01:12:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:12:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,286 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-29 01:12:34,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:12:34,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89298798] [2023-11-29 01:12:34,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89298798] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:12:34,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743285949] [2023-11-29 01:12:34,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:34,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:12:34,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:12:34,288 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:12:34,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 01:12:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 1678 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 01:12:34,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:12:34,722 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 01:12:34,722 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:12:34,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743285949] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:12:34,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:12:34,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2023-11-29 01:12:34,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114564679] [2023-11-29 01:12:34,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:12:34,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:12:34,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:12:34,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:12:34,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:12:34,725 INFO L87 Difference]: Start difference. First operand 140308 states and 226173 transitions. Second operand has 6 states, 5 states have (on average 27.4) internal successors, (137), 6 states have internal predecessors, (137), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2023-11-29 01:12:39,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:12:39,460 INFO L93 Difference]: Finished difference Result 280556 states and 453363 transitions. [2023-11-29 01:12:39,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:12:39,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 27.4) internal successors, (137), 6 states have internal predecessors, (137), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 214 [2023-11-29 01:12:39,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:12:40,075 INFO L225 Difference]: With dead ends: 280556 [2023-11-29 01:12:40,075 INFO L226 Difference]: Without dead ends: 140312 [2023-11-29 01:12:40,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:12:40,324 INFO L413 NwaCegarLoop]: 780 mSDtfsCounter, 10 mSDsluCounter, 3101 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 3881 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:12:40,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 3881 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:12:40,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140312 states. [2023-11-29 01:12:45,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140312 to 140310. [2023-11-29 01:12:45,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140310 states, 121505 states have (on average 1.552973128677832) internal successors, (188694), 121529 states have internal predecessors, (188694), 18717 states have call successors, (18717), 75 states have call predecessors, (18717), 87 states have return successors, (19857), 18726 states have call predecessors, (19857), 18715 states have call successors, (19857) [2023-11-29 01:12:46,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140310 states to 140310 states and 227268 transitions. [2023-11-29 01:12:46,164 INFO L78 Accepts]: Start accepts. Automaton has 140310 states and 227268 transitions. Word has length 214 [2023-11-29 01:12:46,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:12:46,165 INFO L495 AbstractCegarLoop]: Abstraction has 140310 states and 227268 transitions. [2023-11-29 01:12:46,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 27.4) internal successors, (137), 6 states have internal predecessors, (137), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2023-11-29 01:12:46,165 INFO L276 IsEmpty]: Start isEmpty. Operand 140310 states and 227268 transitions. [2023-11-29 01:12:46,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-11-29 01:12:46,269 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:12:46,269 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:12:46,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 01:12:46,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 01:12:46,470 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:12:46,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:46,470 INFO L85 PathProgramCache]: Analyzing trace with hash 223993565, now seen corresponding path program 1 times [2023-11-29 01:12:46,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:12:46,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771074358] [2023-11-29 01:12:46,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:46,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:12:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:12:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:12:46,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:12:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:12:46,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:12:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:12:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:12:46,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:12:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 01:12:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:12:46,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:12:46,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 01:12:46,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:12:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 01:12:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 01:12:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:12:46,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-29 01:12:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-29 01:12:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-29 01:12:46,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-29 01:12:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-29 01:12:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-11-29 01:12:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-29 01:12:46,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-29 01:12:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-11-29 01:12:46,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-11-29 01:12:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-11-29 01:12:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:12:46,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:46,805 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-11-29 01:12:46,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:12:46,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771074358] [2023-11-29 01:12:46,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771074358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:12:46,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:12:46,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 01:12:46,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73450185] [2023-11-29 01:12:46,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:12:46,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:12:46,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:12:46,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:12:46,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:12:46,807 INFO L87 Difference]: Start difference. First operand 140310 states and 227268 transitions. Second operand has 12 states, 10 states have (on average 13.8) internal successors, (138), 8 states have internal predecessors, (138), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-29 01:12:54,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:12:54,525 INFO L93 Difference]: Finished difference Result 280729 states and 458053 transitions. [2023-11-29 01:12:54,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 01:12:54,526 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 13.8) internal successors, (138), 8 states have internal predecessors, (138), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 222 [2023-11-29 01:12:54,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:12:54,902 INFO L225 Difference]: With dead ends: 280729 [2023-11-29 01:12:54,902 INFO L226 Difference]: Without dead ends: 140495 [2023-11-29 01:12:55,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2023-11-29 01:12:55,077 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 1789 mSDsluCounter, 2063 mSDsCounter, 0 mSdLazyCounter, 5239 mSolverCounterSat, 810 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1789 SdHoareTripleChecker+Valid, 2325 SdHoareTripleChecker+Invalid, 6049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 810 IncrementalHoareTripleChecker+Valid, 5239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:12:55,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1789 Valid, 2325 Invalid, 6049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [810 Valid, 5239 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-29 01:12:55,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140495 states. [2023-11-29 01:13:00,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140495 to 140308. [2023-11-29 01:13:00,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140308 states, 121504 states have (on average 1.5529694495654465) internal successors, (188692), 121527 states have internal predecessors, (188692), 18717 states have call successors, (18717), 75 states have call predecessors, (18717), 86 states have return successors, (19856), 18726 states have call predecessors, (19856), 18715 states have call successors, (19856) [2023-11-29 01:13:00,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140308 states to 140308 states and 227265 transitions. [2023-11-29 01:13:00,726 INFO L78 Accepts]: Start accepts. Automaton has 140308 states and 227265 transitions. Word has length 222 [2023-11-29 01:13:00,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:13:00,727 INFO L495 AbstractCegarLoop]: Abstraction has 140308 states and 227265 transitions. [2023-11-29 01:13:00,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 13.8) internal successors, (138), 8 states have internal predecessors, (138), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-29 01:13:00,727 INFO L276 IsEmpty]: Start isEmpty. Operand 140308 states and 227265 transitions. [2023-11-29 01:13:00,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-11-29 01:13:00,823 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:13:00,823 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:00,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-29 01:13:00,823 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:13:00,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:00,824 INFO L85 PathProgramCache]: Analyzing trace with hash -222670023, now seen corresponding path program 2 times [2023-11-29 01:13:00,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:00,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586120815] [2023-11-29 01:13:00,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:00,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:00,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:13:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:00,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:13:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:00,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:13:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:00,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:13:00,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:00,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:13:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:00,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:13:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:00,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:13:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:00,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:13:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:00,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 01:13:00,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:00,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:13:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:00,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:13:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:00,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 01:13:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:00,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:13:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:00,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 01:13:00,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:00,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 01:13:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:01,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:13:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:01,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-29 01:13:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:01,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-29 01:13:01,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:01,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-29 01:13:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:01,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-29 01:13:01,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:01,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-29 01:13:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:01,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-29 01:13:01,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:01,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-11-29 01:13:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:01,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-11-29 01:13:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:01,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-29 01:13:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:01,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-11-29 01:13:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:01,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-11-29 01:13:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:01,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:13:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:01,070 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-11-29 01:13:01,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:01,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586120815] [2023-11-29 01:13:01,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586120815] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:01,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:13:01,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 01:13:01,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837036230] [2023-11-29 01:13:01,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:01,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:13:01,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:01,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:13:01,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:13:01,072 INFO L87 Difference]: Start difference. First operand 140308 states and 227265 transitions. Second operand has 12 states, 10 states have (on average 13.9) internal successors, (139), 8 states have internal predecessors, (139), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-29 01:13:08,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:13:08,755 INFO L93 Difference]: Finished difference Result 280729 states and 458053 transitions. [2023-11-29 01:13:08,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 01:13:08,755 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 13.9) internal successors, (139), 8 states have internal predecessors, (139), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 223 [2023-11-29 01:13:08,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:13:09,139 INFO L225 Difference]: With dead ends: 280729 [2023-11-29 01:13:09,140 INFO L226 Difference]: Without dead ends: 140497 [2023-11-29 01:13:09,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2023-11-29 01:13:09,493 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 1827 mSDsluCounter, 2063 mSDsCounter, 0 mSdLazyCounter, 5028 mSolverCounterSat, 842 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1827 SdHoareTripleChecker+Valid, 2325 SdHoareTripleChecker+Invalid, 5870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 842 IncrementalHoareTripleChecker+Valid, 5028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:13:09,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1827 Valid, 2325 Invalid, 5870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [842 Valid, 5028 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-29 01:13:09,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140497 states. [2023-11-29 01:13:14,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140497 to 140310. [2023-11-29 01:13:14,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140310 states, 121505 states have (on average 1.5529648985638451) internal successors, (188693), 121529 states have internal predecessors, (188693), 18717 states have call successors, (18717), 75 states have call predecessors, (18717), 87 states have return successors, (19857), 18726 states have call predecessors, (19857), 18715 states have call successors, (19857) [2023-11-29 01:13:15,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140310 states to 140310 states and 227267 transitions. [2023-11-29 01:13:15,549 INFO L78 Accepts]: Start accepts. Automaton has 140310 states and 227267 transitions. Word has length 223 [2023-11-29 01:13:15,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:13:15,549 INFO L495 AbstractCegarLoop]: Abstraction has 140310 states and 227267 transitions. [2023-11-29 01:13:15,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 13.9) internal successors, (139), 8 states have internal predecessors, (139), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-29 01:13:15,549 INFO L276 IsEmpty]: Start isEmpty. Operand 140310 states and 227267 transitions. [2023-11-29 01:13:15,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-11-29 01:13:15,634 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:13:15,634 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:15,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 01:13:15,634 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:13:15,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:15,635 INFO L85 PathProgramCache]: Analyzing trace with hash 693876837, now seen corresponding path program 1 times [2023-11-29 01:13:15,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:15,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618024539] [2023-11-29 01:13:15,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:15,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:13:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:13:15,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:13:15,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:13:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:13:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:13:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:13:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:13:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 01:13:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:13:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:13:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 01:13:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:13:15,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 01:13:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 01:13:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:13:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-29 01:13:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-29 01:13:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-29 01:13:15,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-29 01:13:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-29 01:13:15,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-29 01:13:15,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-11-29 01:13:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-11-29 01:13:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-11-29 01:13:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-11-29 01:13:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:13:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:15,872 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-29 01:13:15,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:15,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618024539] [2023-11-29 01:13:15,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618024539] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:15,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:13:15,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-29 01:13:15,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685618800] [2023-11-29 01:13:15,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:15,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:13:15,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:15,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:13:15,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:13:15,874 INFO L87 Difference]: Start difference. First operand 140310 states and 227267 transitions. Second operand has 13 states, 11 states have (on average 12.545454545454545) internal successors, (138), 8 states have internal predecessors, (138), 4 states have call successors, (35), 6 states have call predecessors, (35), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2023-11-29 01:13:23,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:13:23,660 INFO L93 Difference]: Finished difference Result 280730 states and 458054 transitions. [2023-11-29 01:13:23,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 01:13:23,661 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 12.545454545454545) internal successors, (138), 8 states have internal predecessors, (138), 4 states have call successors, (35), 6 states have call predecessors, (35), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 217 [2023-11-29 01:13:23,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:13:24,041 INFO L225 Difference]: With dead ends: 280730 [2023-11-29 01:13:24,041 INFO L226 Difference]: Without dead ends: 140501 [2023-11-29 01:13:24,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2023-11-29 01:13:24,238 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 1838 mSDsluCounter, 2297 mSDsCounter, 0 mSdLazyCounter, 5741 mSolverCounterSat, 838 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1839 SdHoareTripleChecker+Valid, 2552 SdHoareTripleChecker+Invalid, 6579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 838 IncrementalHoareTripleChecker+Valid, 5741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:13:24,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1839 Valid, 2552 Invalid, 6579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [838 Valid, 5741 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-29 01:13:24,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140501 states. [2023-11-29 01:13:29,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140501 to 140315. [2023-11-29 01:13:29,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140315 states, 121507 states have (on average 1.5529557967853704) internal successors, (188695), 121532 states have internal predecessors, (188695), 18718 states have call successors, (18718), 75 states have call predecessors, (18718), 89 states have return successors, (19861), 18728 states have call predecessors, (19861), 18716 states have call successors, (19861) [2023-11-29 01:13:29,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140315 states to 140315 states and 227274 transitions. [2023-11-29 01:13:29,924 INFO L78 Accepts]: Start accepts. Automaton has 140315 states and 227274 transitions. Word has length 217 [2023-11-29 01:13:29,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:13:29,924 INFO L495 AbstractCegarLoop]: Abstraction has 140315 states and 227274 transitions. [2023-11-29 01:13:29,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 12.545454545454545) internal successors, (138), 8 states have internal predecessors, (138), 4 states have call successors, (35), 6 states have call predecessors, (35), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2023-11-29 01:13:29,924 INFO L276 IsEmpty]: Start isEmpty. Operand 140315 states and 227274 transitions. [2023-11-29 01:13:30,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-11-29 01:13:30,017 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:13:30,017 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:30,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 01:13:30,017 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:13:30,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:30,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1156834745, now seen corresponding path program 1 times [2023-11-29 01:13:30,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:30,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897912116] [2023-11-29 01:13:30,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:30,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:30,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:13:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:13:30,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:13:30,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:13:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:13:30,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:13:30,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:13:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:13:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 01:13:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:13:30,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:13:30,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 01:13:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:13:30,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 01:13:30,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 01:13:30,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:13:30,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-29 01:13:30,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-29 01:13:30,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-29 01:13:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-29 01:13:30,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-29 01:13:30,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-11-29 01:13:30,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-29 01:13:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-11-29 01:13:30,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-29 01:13:30,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-11-29 01:13:30,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-11-29 01:13:30,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:13:30,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:30,285 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-11-29 01:13:30,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:30,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897912116] [2023-11-29 01:13:30,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897912116] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:30,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:13:30,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 01:13:30,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337373613] [2023-11-29 01:13:30,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:30,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:13:30,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:30,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:13:30,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:13:30,287 INFO L87 Difference]: Start difference. First operand 140315 states and 227274 transitions. Second operand has 12 states, 10 states have (on average 14.0) internal successors, (140), 8 states have internal predecessors, (140), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-29 01:13:37,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:13:37,808 INFO L93 Difference]: Finished difference Result 280727 states and 458049 transitions. [2023-11-29 01:13:37,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 01:13:37,808 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 14.0) internal successors, (140), 8 states have internal predecessors, (140), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 224 [2023-11-29 01:13:37,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:13:38,191 INFO L225 Difference]: With dead ends: 280727 [2023-11-29 01:13:38,191 INFO L226 Difference]: Without dead ends: 140495 [2023-11-29 01:13:38,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2023-11-29 01:13:38,386 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 1757 mSDsluCounter, 2063 mSDsCounter, 0 mSdLazyCounter, 5264 mSolverCounterSat, 785 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1757 SdHoareTripleChecker+Valid, 2325 SdHoareTripleChecker+Invalid, 6049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 785 IncrementalHoareTripleChecker+Valid, 5264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:13:38,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1757 Valid, 2325 Invalid, 6049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [785 Valid, 5264 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-29 01:13:38,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140495 states. [2023-11-29 01:13:43,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140495 to 140310. [2023-11-29 01:13:43,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140310 states, 121505 states have (on average 1.5529648985638451) internal successors, (188693), 121529 states have internal predecessors, (188693), 18717 states have call successors, (18717), 75 states have call predecessors, (18717), 87 states have return successors, (19856), 18726 states have call predecessors, (19856), 18715 states have call successors, (19856) [2023-11-29 01:13:44,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140310 states to 140310 states and 227266 transitions. [2023-11-29 01:13:44,039 INFO L78 Accepts]: Start accepts. Automaton has 140310 states and 227266 transitions. Word has length 224 [2023-11-29 01:13:44,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:13:44,040 INFO L495 AbstractCegarLoop]: Abstraction has 140310 states and 227266 transitions. [2023-11-29 01:13:44,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 14.0) internal successors, (140), 8 states have internal predecessors, (140), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-29 01:13:44,040 INFO L276 IsEmpty]: Start isEmpty. Operand 140310 states and 227266 transitions. [2023-11-29 01:13:44,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-11-29 01:13:44,131 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:13:44,131 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:44,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-29 01:13:44,132 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:13:44,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:44,132 INFO L85 PathProgramCache]: Analyzing trace with hash 532967965, now seen corresponding path program 1 times [2023-11-29 01:13:44,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:44,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217531235] [2023-11-29 01:13:44,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:44,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:13:44,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:13:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:13:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:13:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:13:44,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:13:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:13:44,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:13:44,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 01:13:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:13:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:13:44,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 01:13:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:13:44,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 01:13:44,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 01:13:44,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:13:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-29 01:13:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-29 01:13:44,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-29 01:13:44,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-11-29 01:13:44,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-29 01:13:44,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-11-29 01:13:44,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-29 01:13:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-29 01:13:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-11-29 01:13:44,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-11-29 01:13:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:13:44,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,404 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-29 01:13:44,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:44,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217531235] [2023-11-29 01:13:44,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217531235] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:44,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:13:44,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-29 01:13:44,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680744083] [2023-11-29 01:13:44,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:44,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:13:44,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:44,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:13:44,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:13:44,407 INFO L87 Difference]: Start difference. First operand 140310 states and 227266 transitions. Second operand has 13 states, 11 states have (on average 12.636363636363637) internal successors, (139), 8 states have internal predecessors, (139), 4 states have call successors, (35), 6 states have call predecessors, (35), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2023-11-29 01:13:52,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:13:52,656 INFO L93 Difference]: Finished difference Result 280728 states and 459141 transitions. [2023-11-29 01:13:52,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 01:13:52,656 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 12.636363636363637) internal successors, (139), 8 states have internal predecessors, (139), 4 states have call successors, (35), 6 states have call predecessors, (35), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 218 [2023-11-29 01:13:52,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:13:53,039 INFO L225 Difference]: With dead ends: 280728 [2023-11-29 01:13:53,039 INFO L226 Difference]: Without dead ends: 140499 [2023-11-29 01:13:53,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2023-11-29 01:13:53,230 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 1757 mSDsluCounter, 2287 mSDsCounter, 0 mSdLazyCounter, 6003 mSolverCounterSat, 781 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1759 SdHoareTripleChecker+Valid, 2542 SdHoareTripleChecker+Invalid, 6784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 781 IncrementalHoareTripleChecker+Valid, 6003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:13:53,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1759 Valid, 2542 Invalid, 6784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [781 Valid, 6003 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-29 01:13:53,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140499 states. [2023-11-29 01:13:58,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140499 to 140312. [2023-11-29 01:13:58,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140312 states, 121506 states have (on average 1.5529603476371536) internal successors, (188694), 121531 states have internal predecessors, (188694), 18717 states have call successors, (18717), 75 states have call predecessors, (18717), 88 states have return successors, (20950), 18726 states have call predecessors, (20950), 18715 states have call successors, (20950) [2023-11-29 01:13:58,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140312 states to 140312 states and 228361 transitions. [2023-11-29 01:13:58,997 INFO L78 Accepts]: Start accepts. Automaton has 140312 states and 228361 transitions. Word has length 218 [2023-11-29 01:13:58,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:13:58,997 INFO L495 AbstractCegarLoop]: Abstraction has 140312 states and 228361 transitions. [2023-11-29 01:13:58,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 12.636363636363637) internal successors, (139), 8 states have internal predecessors, (139), 4 states have call successors, (35), 6 states have call predecessors, (35), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2023-11-29 01:13:58,997 INFO L276 IsEmpty]: Start isEmpty. Operand 140312 states and 228361 transitions. [2023-11-29 01:13:59,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-11-29 01:13:59,087 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:13:59,087 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:59,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-29 01:13:59,087 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:13:59,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:59,087 INFO L85 PathProgramCache]: Analyzing trace with hash 2079493918, now seen corresponding path program 1 times [2023-11-29 01:13:59,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:59,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299479948] [2023-11-29 01:13:59,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:59,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:13:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:13:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:13:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:13:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:13:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:13:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:13:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:13:59,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 01:13:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:13:59,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:13:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 01:13:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:13:59,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 01:13:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 01:13:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:13:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-29 01:13:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-29 01:13:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-29 01:13:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-29 01:13:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-29 01:13:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-29 01:13:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-29 01:13:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-29 01:13:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-29 01:13:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-29 01:13:59,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:13:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:59,299 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-11-29 01:13:59,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:59,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299479948] [2023-11-29 01:13:59,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299479948] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:59,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:13:59,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 01:13:59,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916103003] [2023-11-29 01:13:59,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:59,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:13:59,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:59,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:13:59,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:13:59,302 INFO L87 Difference]: Start difference. First operand 140312 states and 228361 transitions. Second operand has 10 states, 9 states have (on average 15.222222222222221) internal successors, (137), 6 states have internal predecessors, (137), 3 states have call successors, (35), 6 states have call predecessors, (35), 2 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2023-11-29 01:14:06,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:14:06,467 INFO L93 Difference]: Finished difference Result 280728 states and 460232 transitions. [2023-11-29 01:14:06,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:14:06,468 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 15.222222222222221) internal successors, (137), 6 states have internal predecessors, (137), 3 states have call successors, (35), 6 states have call predecessors, (35), 2 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 219 [2023-11-29 01:14:06,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:14:07,028 INFO L225 Difference]: With dead ends: 280728 [2023-11-29 01:14:07,028 INFO L226 Difference]: Without dead ends: 140497 [2023-11-29 01:14:07,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=315, Unknown=0, NotChecked=0, Total=420 [2023-11-29 01:14:07,206 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 1811 mSDsluCounter, 1617 mSDsCounter, 0 mSdLazyCounter, 3718 mSolverCounterSat, 845 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1811 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 4563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 845 IncrementalHoareTripleChecker+Valid, 3718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:14:07,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1811 Valid, 1872 Invalid, 4563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [845 Valid, 3718 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-29 01:14:07,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140497 states. [2023-11-29 01:14:12,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140497 to 140312. [2023-11-29 01:14:12,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140312 states, 121506 states have (on average 1.5529603476371536) internal successors, (188694), 121531 states have internal predecessors, (188694), 18717 states have call successors, (18717), 75 states have call predecessors, (18717), 88 states have return successors, (20950), 18726 states have call predecessors, (20950), 18715 states have call successors, (20950) [2023-11-29 01:14:12,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140312 states to 140312 states and 228361 transitions. [2023-11-29 01:14:12,814 INFO L78 Accepts]: Start accepts. Automaton has 140312 states and 228361 transitions. Word has length 219 [2023-11-29 01:14:12,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:14:12,814 INFO L495 AbstractCegarLoop]: Abstraction has 140312 states and 228361 transitions. [2023-11-29 01:14:12,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 15.222222222222221) internal successors, (137), 6 states have internal predecessors, (137), 3 states have call successors, (35), 6 states have call predecessors, (35), 2 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2023-11-29 01:14:12,815 INFO L276 IsEmpty]: Start isEmpty. Operand 140312 states and 228361 transitions. [2023-11-29 01:14:12,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-11-29 01:14:12,906 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:14:12,906 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:14:12,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-29 01:14:12,907 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:14:12,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:14:12,907 INFO L85 PathProgramCache]: Analyzing trace with hash 547313329, now seen corresponding path program 1 times [2023-11-29 01:14:12,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:14:12,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849982602] [2023-11-29 01:14:12,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:14:12,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:14:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:14:13,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:14:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:14:13,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:14:13,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:14:13,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:14:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:14:13,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:14:13,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 01:14:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:14:13,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:14:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 01:14:13,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:14:13,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 01:14:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 01:14:13,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:14:13,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-29 01:14:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-29 01:14:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-29 01:14:13,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-29 01:14:13,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-29 01:14:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-29 01:14:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-29 01:14:13,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-29 01:14:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-29 01:14:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-29 01:14:13,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:14:13,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,752 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-29 01:14:13,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:14:13,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849982602] [2023-11-29 01:14:13,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849982602] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:14:13,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804204679] [2023-11-29 01:14:13,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:14:13,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:14:13,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:14:13,753 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:14:13,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 01:14:14,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:14,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 1690 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 01:14:14,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:14:14,613 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 01:14:14,613 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:14:14,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804204679] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:14:14,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:14:14,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [18] total 30 [2023-11-29 01:14:14,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825681912] [2023-11-29 01:14:14,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:14:14,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 01:14:14,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:14:14,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 01:14:14,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=783, Unknown=0, NotChecked=0, Total=870 [2023-11-29 01:14:14,616 INFO L87 Difference]: Start difference. First operand 140312 states and 228361 transitions. Second operand has 14 states, 12 states have (on average 12.0) internal successors, (144), 11 states have internal predecessors, (144), 6 states have call successors, (35), 5 states have call predecessors, (35), 6 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) [2023-11-29 01:14:23,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:14:23,834 INFO L93 Difference]: Finished difference Result 279612 states and 460591 transitions. [2023-11-29 01:14:23,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 01:14:23,834 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 12.0) internal successors, (144), 11 states have internal predecessors, (144), 6 states have call successors, (35), 5 states have call predecessors, (35), 6 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) Word has length 219 [2023-11-29 01:14:23,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:14:24,797 INFO L225 Difference]: With dead ends: 279612 [2023-11-29 01:14:24,798 INFO L226 Difference]: Without dead ends: 278970 [2023-11-29 01:14:24,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=217, Invalid=1853, Unknown=0, NotChecked=0, Total=2070 [2023-11-29 01:14:24,857 INFO L413 NwaCegarLoop]: 928 mSDtfsCounter, 1303 mSDsluCounter, 8627 mSDsCounter, 0 mSdLazyCounter, 3032 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1317 SdHoareTripleChecker+Valid, 9555 SdHoareTripleChecker+Invalid, 3275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 3032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:14:24,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1317 Valid, 9555 Invalid, 3275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 3032 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 01:14:25,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278970 states. [2023-11-29 01:14:36,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278970 to 278953. [2023-11-29 01:14:36,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278953 states, 241639 states have (on average 1.5537309788568898) internal successors, (375442), 241578 states have internal predecessors, (375442), 37146 states have call successors, (37146), 142 states have call predecessors, (37146), 167 states have return successors, (44891), 37274 states have call predecessors, (44891), 37142 states have call successors, (44891) [2023-11-29 01:14:37,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278953 states to 278953 states and 457479 transitions. [2023-11-29 01:14:37,009 INFO L78 Accepts]: Start accepts. Automaton has 278953 states and 457479 transitions. Word has length 219 [2023-11-29 01:14:37,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:14:37,009 INFO L495 AbstractCegarLoop]: Abstraction has 278953 states and 457479 transitions. [2023-11-29 01:14:37,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 12.0) internal successors, (144), 11 states have internal predecessors, (144), 6 states have call successors, (35), 5 states have call predecessors, (35), 6 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) [2023-11-29 01:14:37,009 INFO L276 IsEmpty]: Start isEmpty. Operand 278953 states and 457479 transitions. [2023-11-29 01:14:37,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-11-29 01:14:37,584 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:14:37,584 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:14:37,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 01:14:37,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:14:37,785 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:14:37,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:14:37,786 INFO L85 PathProgramCache]: Analyzing trace with hash 422096622, now seen corresponding path program 1 times [2023-11-29 01:14:37,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:14:37,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481322320] [2023-11-29 01:14:37,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:14:37,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:14:37,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:14:38,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:14:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:14:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:14:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:14:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 01:14:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:14:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:14:38,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 01:14:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:14:38,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:14:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 01:14:38,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:14:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 01:14:38,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 01:14:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:14:38,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-29 01:14:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-29 01:14:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-29 01:14:38,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-29 01:14:38,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-29 01:14:38,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-29 01:14:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-29 01:14:38,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-11-29 01:14:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-29 01:14:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-29 01:14:38,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:14:38,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,261 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-29 01:14:38,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:14:38,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481322320] [2023-11-29 01:14:38,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481322320] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:14:38,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200853002] [2023-11-29 01:14:38,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:14:38,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:14:38,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:14:38,262 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:14:38,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ee9ede-a10f-48c0-b5cd-8a8bcb38b43c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 01:14:38,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:38,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 1691 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 01:14:38,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:14:39,095 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 01:14:39,095 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:14:39,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200853002] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:14:39,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:14:39,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [18] total 30 [2023-11-29 01:14:39,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460381336] [2023-11-29 01:14:39,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:14:39,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 01:14:39,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:14:39,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 01:14:39,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=793, Unknown=0, NotChecked=0, Total=870 [2023-11-29 01:14:39,097 INFO L87 Difference]: Start difference. First operand 278953 states and 457479 transitions. Second operand has 14 states, 12 states have (on average 12.083333333333334) internal successors, (145), 11 states have internal predecessors, (145), 6 states have call successors, (35), 5 states have call predecessors, (35), 6 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) [2023-11-29 01:14:55,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:14:55,961 INFO L93 Difference]: Finished difference Result 553611 states and 918955 transitions. [2023-11-29 01:14:55,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 01:14:55,962 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 12.083333333333334) internal successors, (145), 11 states have internal predecessors, (145), 6 states have call successors, (35), 5 states have call predecessors, (35), 6 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) Word has length 220 [2023-11-29 01:14:55,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:14:57,727 INFO L225 Difference]: With dead ends: 553611 [2023-11-29 01:14:57,727 INFO L226 Difference]: Without dead ends: 552323 [2023-11-29 01:14:57,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=225, Invalid=1845, Unknown=0, NotChecked=0, Total=2070 [2023-11-29 01:14:57,873 INFO L413 NwaCegarLoop]: 837 mSDtfsCounter, 1296 mSDsluCounter, 7636 mSDsCounter, 0 mSdLazyCounter, 3024 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 8473 SdHoareTripleChecker+Invalid, 3263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 3024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:14:57,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1308 Valid, 8473 Invalid, 3263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 3024 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 01:14:58,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552323 states.