./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec7_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_f9ad4c51-df1b-4af0-b2fc-a71280ad264d/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9ad4c51-df1b-4af0-b2fc-a71280ad264d/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9ad4c51-df1b-4af0-b2fc-a71280ad264d/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9ad4c51-df1b-4af0-b2fc-a71280ad264d/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec7_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9ad4c51-df1b-4af0-b2fc-a71280ad264d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9ad4c51-df1b-4af0-b2fc-a71280ad264d/bin/uautomizer-verify-bycVGegfSx --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 ee2b8c4c449b1e8aa7dd92109d118d4c0b36a93d6052f04f0a75223fa59783b7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:15:10,033 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:15:10,166 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9ad4c51-df1b-4af0-b2fc-a71280ad264d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:15:10,175 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:15:10,176 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:15:10,220 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:15:10,220 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:15:10,221 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:15:10,222 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:15:10,229 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:15:10,230 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:15:10,230 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:15:10,231 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:15:10,233 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:15:10,233 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:15:10,234 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:15:10,234 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:15:10,235 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:15:10,235 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:15:10,236 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:15:10,236 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:15:10,237 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:15:10,237 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:15:10,238 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:15:10,238 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:15:10,238 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:15:10,239 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:15:10,240 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:15:10,240 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:15:10,241 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:15:10,242 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:15:10,242 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:15:10,243 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:15:10,243 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:15:10,243 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:15:10,243 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:15:10,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:15:10,244 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:15:10,244 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:15:10,244 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:15:10,245 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:15:10,245 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:15:10,245 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_f9ad4c51-df1b-4af0-b2fc-a71280ad264d/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9ad4c51-df1b-4af0-b2fc-a71280ad264d/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee2b8c4c449b1e8aa7dd92109d118d4c0b36a93d6052f04f0a75223fa59783b7 [2023-11-21 22:15:10,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:15:10,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:15:10,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:15:10,558 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:15:10,559 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:15:10,560 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9ad4c51-df1b-4af0-b2fc-a71280ad264d/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/product-lines/email_spec7_product32.cil.c [2023-11-21 22:15:13,815 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:15:14,197 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:15:14,200 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9ad4c51-df1b-4af0-b2fc-a71280ad264d/sv-benchmarks/c/product-lines/email_spec7_product32.cil.c [2023-11-21 22:15:14,224 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9ad4c51-df1b-4af0-b2fc-a71280ad264d/bin/uautomizer-verify-bycVGegfSx/data/8a11a429e/0eeaf027f49f43db94516fb38edaea88/FLAG2a54498d1 [2023-11-21 22:15:14,246 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9ad4c51-df1b-4af0-b2fc-a71280ad264d/bin/uautomizer-verify-bycVGegfSx/data/8a11a429e/0eeaf027f49f43db94516fb38edaea88 [2023-11-21 22:15:14,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:15:14,257 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:15:14,259 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:15:14,259 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:15:14,265 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:15:14,265 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:15:14" (1/1) ... [2023-11-21 22:15:14,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c4042d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:14, skipping insertion in model container [2023-11-21 22:15:14,267 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:15:14" (1/1) ... [2023-11-21 22:15:14,373 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:15:14,702 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_f9ad4c51-df1b-4af0-b2fc-a71280ad264d/sv-benchmarks/c/product-lines/email_spec7_product32.cil.c[6103,6116] [2023-11-21 22:15:15,113 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:15:15,134 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:15:15,145 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2023-11-21 22:15:15,147 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [208] [2023-11-21 22:15:15,147 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [225] [2023-11-21 22:15:15,148 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [263] [2023-11-21 22:15:15,148 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [272] [2023-11-21 22:15:15,149 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [690] [2023-11-21 22:15:15,149 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [708] [2023-11-21 22:15:15,149 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1105] [2023-11-21 22:15:15,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1471] [2023-11-21 22:15:15,151 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1700] [2023-11-21 22:15:15,152 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2772] [2023-11-21 22:15:15,178 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_f9ad4c51-df1b-4af0-b2fc-a71280ad264d/sv-benchmarks/c/product-lines/email_spec7_product32.cil.c[6103,6116] [2023-11-21 22:15:15,309 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:15:15,339 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:15:15,347 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:15:15,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:15 WrapperNode [2023-11-21 22:15:15,348 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:15:15,349 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:15:15,350 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:15:15,350 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:15:15,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:15" (1/1) ... [2023-11-21 22:15:15,412 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:15" (1/1) ... [2023-11-21 22:15:15,485 INFO L138 Inliner]: procedures = 134, calls = 234, calls flagged for inlining = 61, calls inlined = 53, statements flattened = 984 [2023-11-21 22:15:15,486 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:15:15,486 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:15:15,486 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:15:15,487 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:15:15,500 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:15" (1/1) ... [2023-11-21 22:15:15,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:15" (1/1) ... [2023-11-21 22:15:15,505 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:15" (1/1) ... [2023-11-21 22:15:15,556 INFO L187 HeapSplitter]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4] [2023-11-21 22:15:15,557 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:15" (1/1) ... [2023-11-21 22:15:15,557 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:15" (1/1) ... [2023-11-21 22:15:15,591 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:15" (1/1) ... [2023-11-21 22:15:15,614 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:15" (1/1) ... [2023-11-21 22:15:15,620 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:15" (1/1) ... [2023-11-21 22:15:15,642 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:15" (1/1) ... [2023-11-21 22:15:15,651 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:15:15,652 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:15:15,652 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:15:15,653 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:15:15,653 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:15" (1/1) ... [2023-11-21 22:15:15,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:15:15,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9ad4c51-df1b-4af0-b2fc-a71280ad264d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:15:15,688 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9ad4c51-df1b-4af0-b2fc-a71280ad264d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:15:15,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9ad4c51-df1b-4af0-b2fc-a71280ad264d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:15:15,742 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-11-21 22:15:15,742 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-11-21 22:15:15,742 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-21 22:15:15,742 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-21 22:15:15,743 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-21 22:15:15,743 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-21 22:15:15,743 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-21 22:15:15,743 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-21 22:15:15,743 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-21 22:15:15,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-21 22:15:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-21 22:15:15,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-21 22:15:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-11-21 22:15:15,744 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-11-21 22:15:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-21 22:15:15,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-21 22:15:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-21 22:15:15,745 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-21 22:15:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-21 22:15:15,746 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-21 22:15:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-21 22:15:15,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-21 22:15:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-21 22:15:15,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-21 22:15:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-21 22:15:15,747 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-21 22:15:15,747 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-21 22:15:15,747 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-21 22:15:15,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-21 22:15:15,747 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-21 22:15:15,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-21 22:15:15,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:15:15,748 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-21 22:15:15,748 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-21 22:15:15,748 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-11-21 22:15:15,749 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-11-21 22:15:15,749 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-21 22:15:15,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-21 22:15:15,749 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-21 22:15:15,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-21 22:15:15,749 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-21 22:15:15,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-21 22:15:15,750 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-21 22:15:15,750 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-21 22:15:15,750 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-11-21 22:15:15,750 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-11-21 22:15:15,750 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-21 22:15:15,751 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-21 22:15:15,751 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-21 22:15:15,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-21 22:15:15,751 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-21 22:15:15,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-21 22:15:15,751 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-21 22:15:15,752 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-21 22:15:15,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:15:15,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 22:15:15,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 22:15:15,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 22:15:15,752 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-21 22:15:15,753 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-21 22:15:15,753 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-21 22:15:15,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-21 22:15:15,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:15:15,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:15:15,967 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:15:15,970 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:15:17,039 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:15:17,954 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:15:17,955 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:15:17,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:15:17 BoogieIcfgContainer [2023-11-21 22:15:17,957 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:15:17,960 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:15:17,961 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:15:17,964 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:15:17,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:15:14" (1/3) ... [2023-11-21 22:15:17,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f3b9918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:15:17, skipping insertion in model container [2023-11-21 22:15:17,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:15" (2/3) ... [2023-11-21 22:15:17,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f3b9918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:15:17, skipping insertion in model container [2023-11-21 22:15:17,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:15:17" (3/3) ... [2023-11-21 22:15:17,969 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product32.cil.c [2023-11-21 22:15:17,990 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:15:17,990 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:15:18,061 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:15:18,071 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;@7884ef17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:15:18,071 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:15:18,078 INFO L276 IsEmpty]: Start isEmpty. Operand has 216 states, 122 states have (on average 1.3032786885245902) internal successors, (159), 127 states have internal predecessors, (159), 64 states have call successors, (64), 28 states have call predecessors, (64), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-21 22:15:18,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-21 22:15:18,101 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:15:18,102 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:15:18,103 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:15:18,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:18,110 INFO L85 PathProgramCache]: Analyzing trace with hash 271016930, now seen corresponding path program 1 times [2023-11-21 22:15:18,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:18,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144009831] [2023-11-21 22:15:18,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:18,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:18,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:15:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:18,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 22:15:18,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:18,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-21 22:15:18,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:18,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 22:15:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:18,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-21 22:15:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:18,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-21 22:15:18,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:18,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-21 22:15:18,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:18,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-21 22:15:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:18,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-21 22:15:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:18,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-21 22:15:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:18,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-21 22:15:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:18,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-21 22:15:18,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:18,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-21 22:15:18,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:18,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-21 22:15:18,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:18,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-21 22:15:18,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:18,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-21 22:15:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:18,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:15:18,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:18,734 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 22:15:18,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:18,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144009831] [2023-11-21 22:15:18,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144009831] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:18,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:18,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 22:15:18,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050135829] [2023-11-21 22:15:18,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:18,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:15:18,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:18,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:15:18,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:15:18,794 INFO L87 Difference]: Start difference. First operand has 216 states, 122 states have (on average 1.3032786885245902) internal successors, (159), 127 states have internal predecessors, (159), 64 states have call successors, (64), 28 states have call predecessors, (64), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-21 22:15:19,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:15:19,963 INFO L93 Difference]: Finished difference Result 344 states and 452 transitions. [2023-11-21 22:15:19,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 22:15:19,967 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 84 [2023-11-21 22:15:19,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:15:19,985 INFO L225 Difference]: With dead ends: 344 [2023-11-21 22:15:19,985 INFO L226 Difference]: Without dead ends: 217 [2023-11-21 22:15:19,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-21 22:15:20,000 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 283 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:15:20,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 376 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-21 22:15:20,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2023-11-21 22:15:20,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 213. [2023-11-21 22:15:20,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 120 states have (on average 1.275) internal successors, (153), 124 states have internal predecessors, (153), 64 states have call successors, (64), 28 states have call predecessors, (64), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2023-11-21 22:15:20,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 280 transitions. [2023-11-21 22:15:20,117 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 280 transitions. Word has length 84 [2023-11-21 22:15:20,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:15:20,118 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 280 transitions. [2023-11-21 22:15:20,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-21 22:15:20,118 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 280 transitions. [2023-11-21 22:15:20,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-21 22:15:20,130 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:15:20,131 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:15:20,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:15:20,131 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:15:20,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:20,132 INFO L85 PathProgramCache]: Analyzing trace with hash 338646634, now seen corresponding path program 1 times [2023-11-21 22:15:20,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:20,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371708885] [2023-11-21 22:15:20,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:20,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:20,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:15:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:20,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 22:15:20,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:20,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-21 22:15:20,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:20,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 22:15:20,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:20,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-21 22:15:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:20,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-21 22:15:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:20,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 22:15:20,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:20,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-21 22:15:20,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:20,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-21 22:15:20,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:20,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-21 22:15:20,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:20,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-21 22:15:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:20,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-21 22:15:20,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:20,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 22:15:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:20,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-21 22:15:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:20,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-21 22:15:20,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:20,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-21 22:15:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:20,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:15:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:20,565 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 22:15:20,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:20,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371708885] [2023-11-21 22:15:20,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371708885] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:20,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:20,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:15:20,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646367259] [2023-11-21 22:15:20,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:20,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:15:20,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:20,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:15:20,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:15:20,576 INFO L87 Difference]: Start difference. First operand 213 states and 280 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-21 22:15:21,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:15:21,703 INFO L93 Difference]: Finished difference Result 340 states and 436 transitions. [2023-11-21 22:15:21,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:15:21,704 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 85 [2023-11-21 22:15:21,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:15:21,708 INFO L225 Difference]: With dead ends: 340 [2023-11-21 22:15:21,708 INFO L226 Difference]: Without dead ends: 219 [2023-11-21 22:15:21,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-21 22:15:21,711 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 283 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:15:21,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 451 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-21 22:15:21,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-11-21 22:15:21,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 215. [2023-11-21 22:15:21,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 122 states have (on average 1.2704918032786885) internal successors, (155), 126 states have internal predecessors, (155), 64 states have call successors, (64), 28 states have call predecessors, (64), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2023-11-21 22:15:21,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 282 transitions. [2023-11-21 22:15:21,753 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 282 transitions. Word has length 85 [2023-11-21 22:15:21,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:15:21,753 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 282 transitions. [2023-11-21 22:15:21,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-21 22:15:21,754 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 282 transitions. [2023-11-21 22:15:21,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-21 22:15:21,756 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:15:21,756 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:15:21,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:15:21,757 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:15:21,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:21,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1533510972, now seen corresponding path program 1 times [2023-11-21 22:15:21,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:21,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470791902] [2023-11-21 22:15:21,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:21,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:21,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:15:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:21,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 22:15:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:21,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-21 22:15:21,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:21,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 22:15:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:21,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-21 22:15:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:21,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-21 22:15:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:21,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-21 22:15:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:21,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-21 22:15:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:21,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-21 22:15:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:21,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-21 22:15:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:21,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-21 22:15:21,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:21,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-21 22:15:21,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:21,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-21 22:15:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:21,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-21 22:15:21,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:21,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-21 22:15:21,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:21,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-21 22:15:21,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:22,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:15:22,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:22,005 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 22:15:22,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:22,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470791902] [2023-11-21 22:15:22,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470791902] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:22,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:22,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:15:22,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265523793] [2023-11-21 22:15:22,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:22,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:15:22,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:22,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:15:22,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:15:22,010 INFO L87 Difference]: Start difference. First operand 215 states and 282 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-21 22:15:23,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:15:23,064 INFO L93 Difference]: Finished difference Result 469 states and 637 transitions. [2023-11-21 22:15:23,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:15:23,065 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 90 [2023-11-21 22:15:23,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:15:23,069 INFO L225 Difference]: With dead ends: 469 [2023-11-21 22:15:23,069 INFO L226 Difference]: Without dead ends: 272 [2023-11-21 22:15:23,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-21 22:15:23,078 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 342 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 441 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 1025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 441 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-21 22:15:23,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 451 Invalid, 1025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [441 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-21 22:15:23,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2023-11-21 22:15:23,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 263. [2023-11-21 22:15:23,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 156 states have (on average 1.3461538461538463) internal successors, (210), 160 states have internal predecessors, (210), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2023-11-21 22:15:23,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 365 transitions. [2023-11-21 22:15:23,136 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 365 transitions. Word has length 90 [2023-11-21 22:15:23,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:15:23,138 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 365 transitions. [2023-11-21 22:15:23,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-21 22:15:23,139 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 365 transitions. [2023-11-21 22:15:23,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-21 22:15:23,142 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:15:23,142 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:15:23,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:15:23,143 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:15:23,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:23,144 INFO L85 PathProgramCache]: Analyzing trace with hash -297743608, now seen corresponding path program 1 times [2023-11-21 22:15:23,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:23,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727331700] [2023-11-21 22:15:23,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:23,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:23,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:15:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:23,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 22:15:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:23,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-21 22:15:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:23,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 22:15:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:23,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-21 22:15:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:23,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-21 22:15:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:23,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-21 22:15:23,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:23,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-21 22:15:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:23,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-21 22:15:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:23,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-21 22:15:23,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:23,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-21 22:15:23,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:23,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 22:15:23,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:23,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-21 22:15:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:23,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-21 22:15:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:23,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-21 22:15:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:23,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-21 22:15:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:23,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:15:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:23,501 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 22:15:23,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:23,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727331700] [2023-11-21 22:15:23,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727331700] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:15:23,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659449412] [2023-11-21 22:15:23,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:23,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:15:23,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9ad4c51-df1b-4af0-b2fc-a71280ad264d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:15:23,508 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9ad4c51-df1b-4af0-b2fc-a71280ad264d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:15:23,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9ad4c51-df1b-4af0-b2fc-a71280ad264d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:15:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:23,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 1112 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:15:23,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:15:23,989 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 22:15:23,989 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:15:24,105 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 22:15:24,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659449412] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:15:24,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:15:24,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2023-11-21 22:15:24,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643291383] [2023-11-21 22:15:24,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:15:24,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-21 22:15:24,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:24,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-21 22:15:24,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:15:24,111 INFO L87 Difference]: Start difference. First operand 263 states and 365 transitions. Second operand has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (40), 6 states have call predecessors, (40), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-21 22:15:25,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:15:25,648 INFO L93 Difference]: Finished difference Result 663 states and 986 transitions. [2023-11-21 22:15:25,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-21 22:15:25,649 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (40), 6 states have call predecessors, (40), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 91 [2023-11-21 22:15:25,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:15:25,654 INFO L225 Difference]: With dead ends: 663 [2023-11-21 22:15:25,654 INFO L226 Difference]: Without dead ends: 542 [2023-11-21 22:15:25,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-11-21 22:15:25,656 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 553 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 569 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 569 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:15:25,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 784 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [569 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-21 22:15:25,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2023-11-21 22:15:25,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 523. [2023-11-21 22:15:25,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 337 states have (on average 1.4718100890207715) internal successors, (496), 341 states have internal predecessors, (496), 157 states have call successors, (157), 28 states have call predecessors, (157), 28 states have return successors, (156), 155 states have call predecessors, (156), 156 states have call successors, (156) [2023-11-21 22:15:25,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 809 transitions. [2023-11-21 22:15:25,709 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 809 transitions. Word has length 91 [2023-11-21 22:15:25,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:15:25,709 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 809 transitions. [2023-11-21 22:15:25,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (40), 6 states have call predecessors, (40), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-21 22:15:25,710 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 809 transitions. [2023-11-21 22:15:25,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-21 22:15:25,714 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:15:25,714 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:15:25,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9ad4c51-df1b-4af0-b2fc-a71280ad264d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-21 22:15:25,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9ad4c51-df1b-4af0-b2fc-a71280ad264d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:15:25,928 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:15:25,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:25,929 INFO L85 PathProgramCache]: Analyzing trace with hash -333627217, now seen corresponding path program 1 times [2023-11-21 22:15:25,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:25,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821796805] [2023-11-21 22:15:25,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:25,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:25,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:26,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:15:26,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:26,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 22:15:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:26,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-21 22:15:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:26,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 22:15:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:26,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-21 22:15:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:26,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-21 22:15:26,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:26,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-21 22:15:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:26,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-21 22:15:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:26,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-21 22:15:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:26,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-21 22:15:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:26,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-21 22:15:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:26,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-21 22:15:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:26,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-21 22:15:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:26,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-21 22:15:26,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:26,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-21 22:15:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:26,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-21 22:15:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:26,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:15:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:26,162 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 22:15:26,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:26,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821796805] [2023-11-21 22:15:26,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821796805] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:26,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:26,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:15:26,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679727629] [2023-11-21 22:15:26,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:26,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:15:26,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:26,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:15:26,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:15:26,166 INFO L87 Difference]: Start difference. First operand 523 states and 809 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-21 22:15:27,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:15:27,341 INFO L93 Difference]: Finished difference Result 1280 states and 2022 transitions. [2023-11-21 22:15:27,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:15:27,341 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 97 [2023-11-21 22:15:27,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:15:27,348 INFO L225 Difference]: With dead ends: 1280 [2023-11-21 22:15:27,348 INFO L226 Difference]: Without dead ends: 789 [2023-11-21 22:15:27,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-21 22:15:27,352 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 340 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 445 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 445 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:15:27,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 475 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [445 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-21 22:15:27,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2023-11-21 22:15:27,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 780. [2023-11-21 22:15:27,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 515 states have (on average 1.4932038834951455) internal successors, (769), 519 states have internal predecessors, (769), 236 states have call successors, (236), 28 states have call predecessors, (236), 28 states have return successors, (235), 234 states have call predecessors, (235), 235 states have call successors, (235) [2023-11-21 22:15:27,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1240 transitions. [2023-11-21 22:15:27,411 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1240 transitions. Word has length 97 [2023-11-21 22:15:27,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:15:27,411 INFO L495 AbstractCegarLoop]: Abstraction has 780 states and 1240 transitions. [2023-11-21 22:15:27,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-21 22:15:27,412 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1240 transitions. [2023-11-21 22:15:27,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-21 22:15:27,416 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:15:27,417 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:15:27,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:15:27,417 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:15:27,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:27,418 INFO L85 PathProgramCache]: Analyzing trace with hash 253995686, now seen corresponding path program 1 times [2023-11-21 22:15:27,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:27,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443403122] [2023-11-21 22:15:27,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:27,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:27,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:15:27,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:27,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 22:15:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:27,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-21 22:15:27,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:27,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 22:15:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:27,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-21 22:15:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:27,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-21 22:15:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:27,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-21 22:15:27,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:27,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-21 22:15:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:27,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-21 22:15:27,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:27,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-21 22:15:27,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:27,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-21 22:15:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:27,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-21 22:15:27,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:27,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-21 22:15:27,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:27,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-21 22:15:27,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:27,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-21 22:15:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:27,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-21 22:15:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:27,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:15:27,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:27,583 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 22:15:27,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:27,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443403122] [2023-11-21 22:15:27,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443403122] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:27,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:27,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:15:27,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475950579] [2023-11-21 22:15:27,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:27,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:15:27,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:27,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:15:27,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:15:27,586 INFO L87 Difference]: Start difference. First operand 780 states and 1240 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-21 22:15:28,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:15:28,726 INFO L93 Difference]: Finished difference Result 1902 states and 3069 transitions. [2023-11-21 22:15:28,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:15:28,727 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 98 [2023-11-21 22:15:28,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:15:28,740 INFO L225 Difference]: With dead ends: 1902 [2023-11-21 22:15:28,740 INFO L226 Difference]: Without dead ends: 1184 [2023-11-21 22:15:28,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-21 22:15:28,747 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 338 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:15:28,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 454 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-21 22:15:28,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2023-11-21 22:15:28,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1175. [2023-11-21 22:15:28,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1175 states, 791 states have (on average 1.5031605562579013) internal successors, (1189), 795 states have internal predecessors, (1189), 355 states have call successors, (355), 28 states have call predecessors, (355), 28 states have return successors, (354), 353 states have call predecessors, (354), 354 states have call successors, (354) [2023-11-21 22:15:28,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1898 transitions. [2023-11-21 22:15:28,846 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1898 transitions. Word has length 98 [2023-11-21 22:15:28,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:15:28,847 INFO L495 AbstractCegarLoop]: Abstraction has 1175 states and 1898 transitions. [2023-11-21 22:15:28,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-21 22:15:28,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1898 transitions. [2023-11-21 22:15:28,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-21 22:15:28,854 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:15:28,855 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:15:28,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:15:28,855 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:15:28,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:28,856 INFO L85 PathProgramCache]: Analyzing trace with hash 749593565, now seen corresponding path program 1 times [2023-11-21 22:15:28,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:28,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922214364] [2023-11-21 22:15:28,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:28,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:28,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:15:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:28,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 22:15:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:28,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-21 22:15:28,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:28,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 22:15:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:28,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-21 22:15:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:28,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-21 22:15:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:28,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-21 22:15:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:28,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-21 22:15:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:29,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-21 22:15:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:29,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-21 22:15:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:29,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-21 22:15:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:29,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-21 22:15:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:29,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-21 22:15:29,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:29,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-21 22:15:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:29,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-21 22:15:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:29,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-21 22:15:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:29,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:15:29,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:29,088 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 22:15:29,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:29,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922214364] [2023-11-21 22:15:29,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922214364] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:29,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:29,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:15:29,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653855796] [2023-11-21 22:15:29,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:29,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:15:29,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:29,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:15:29,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:15:29,091 INFO L87 Difference]: Start difference. First operand 1175 states and 1898 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-21 22:15:30,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:15:30,130 INFO L93 Difference]: Finished difference Result 2805 states and 4581 transitions. [2023-11-21 22:15:30,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:15:30,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 99 [2023-11-21 22:15:30,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:15:30,146 INFO L225 Difference]: With dead ends: 2805 [2023-11-21 22:15:30,146 INFO L226 Difference]: Without dead ends: 1772 [2023-11-21 22:15:30,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-21 22:15:30,151 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 336 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 441 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 441 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-21 22:15:30,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 444 Invalid, 1032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [441 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-21 22:15:30,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1772 states. [2023-11-21 22:15:30,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1772 to 1763. [2023-11-21 22:15:30,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1763 states, 1217 states have (on average 1.5094494658997535) internal successors, (1837), 1221 states have internal predecessors, (1837), 517 states have call successors, (517), 28 states have call predecessors, (517), 28 states have return successors, (516), 515 states have call predecessors, (516), 516 states have call successors, (516) [2023-11-21 22:15:30,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 2870 transitions. [2023-11-21 22:15:30,318 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 2870 transitions. Word has length 99 [2023-11-21 22:15:30,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:15:30,318 INFO L495 AbstractCegarLoop]: Abstraction has 1763 states and 2870 transitions. [2023-11-21 22:15:30,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-21 22:15:30,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 2870 transitions. [2023-11-21 22:15:30,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-21 22:15:30,331 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:15:30,332 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:15:30,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:15:30,332 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:15:30,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:30,333 INFO L85 PathProgramCache]: Analyzing trace with hash 965432873, now seen corresponding path program 1 times [2023-11-21 22:15:30,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:30,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909193272] [2023-11-21 22:15:30,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:30,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:30,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:15:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:30,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 22:15:30,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:30,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-21 22:15:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:30,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 22:15:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:30,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-21 22:15:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:30,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-21 22:15:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:30,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-21 22:15:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:30,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-21 22:15:30,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:30,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-21 22:15:30,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:30,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-21 22:15:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:30,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-21 22:15:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:30,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-21 22:15:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:30,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-21 22:15:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:30,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-21 22:15:30,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:30,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-21 22:15:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:30,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-21 22:15:30,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:30,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-21 22:15:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:30,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-21 22:15:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:30,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-21 22:15:30,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:30,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:15:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:30,546 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-21 22:15:30,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:30,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909193272] [2023-11-21 22:15:30,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909193272] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:30,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:30,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:15:30,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865982900] [2023-11-21 22:15:30,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:30,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:15:30,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:30,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:15:30,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:15:30,554 INFO L87 Difference]: Start difference. First operand 1763 states and 2870 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-21 22:15:31,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:15:31,760 INFO L93 Difference]: Finished difference Result 4190 states and 6889 transitions. [2023-11-21 22:15:31,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:15:31,761 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 111 [2023-11-21 22:15:31,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:15:31,783 INFO L225 Difference]: With dead ends: 4190 [2023-11-21 22:15:31,783 INFO L226 Difference]: Without dead ends: 2706 [2023-11-21 22:15:31,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-21 22:15:31,789 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 334 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 445 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 445 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:15:31,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 441 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [445 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-21 22:15:31,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2706 states. [2023-11-21 22:15:31,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2706 to 2697. [2023-11-21 22:15:31,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2697 states, 1906 states have (on average 1.512591815320042) internal successors, (2883), 1910 states have internal predecessors, (2883), 762 states have call successors, (762), 28 states have call predecessors, (762), 28 states have return successors, (761), 760 states have call predecessors, (761), 761 states have call successors, (761) [2023-11-21 22:15:32,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2697 states to 2697 states and 4406 transitions. [2023-11-21 22:15:32,009 INFO L78 Accepts]: Start accepts. Automaton has 2697 states and 4406 transitions. Word has length 111 [2023-11-21 22:15:32,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:15:32,010 INFO L495 AbstractCegarLoop]: Abstraction has 2697 states and 4406 transitions. [2023-11-21 22:15:32,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-21 22:15:32,010 INFO L276 IsEmpty]: Start isEmpty. Operand 2697 states and 4406 transitions. [2023-11-21 22:15:32,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-21 22:15:32,025 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:15:32,025 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:15:32,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:15:32,026 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:15:32,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:32,026 INFO L85 PathProgramCache]: Analyzing trace with hash 252587863, now seen corresponding path program 1 times [2023-11-21 22:15:32,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:32,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257352723] [2023-11-21 22:15:32,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:32,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:32,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:32,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:15:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:32,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 22:15:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:32,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-21 22:15:32,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:32,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 22:15:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:32,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-21 22:15:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:32,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-21 22:15:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:32,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-21 22:15:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:32,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-21 22:15:32,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:32,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-21 22:15:32,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:32,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-21 22:15:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:32,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-21 22:15:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:32,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-21 22:15:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:32,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-21 22:15:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:32,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-21 22:15:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:32,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-21 22:15:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:32,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-21 22:15:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:32,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-21 22:15:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:32,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-21 22:15:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:32,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-21 22:15:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:32,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:15:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:32,217 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-21 22:15:32,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:32,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257352723] [2023-11-21 22:15:32,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257352723] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:32,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:32,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:15:32,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766769814] [2023-11-21 22:15:32,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:32,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:15:32,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:32,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:15:32,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:15:32,220 INFO L87 Difference]: Start difference. First operand 2697 states and 4406 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-21 22:15:33,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:15:33,523 INFO L93 Difference]: Finished difference Result 6706 states and 11049 transitions. [2023-11-21 22:15:33,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:15:33,524 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 112 [2023-11-21 22:15:33,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:15:33,559 INFO L225 Difference]: With dead ends: 6706 [2023-11-21 22:15:33,559 INFO L226 Difference]: Without dead ends: 4431 [2023-11-21 22:15:33,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-21 22:15:33,570 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 332 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:15:33,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 475 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-21 22:15:33,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4431 states. [2023-11-21 22:15:33,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4431 to 4422. [2023-11-21 22:15:33,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4422 states, 3138 states have (on average 1.502868068833652) internal successors, (4716), 3142 states have internal predecessors, (4716), 1255 states have call successors, (1255), 28 states have call predecessors, (1255), 28 states have return successors, (1254), 1253 states have call predecessors, (1254), 1254 states have call successors, (1254) [2023-11-21 22:15:33,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4422 states to 4422 states and 7225 transitions. [2023-11-21 22:15:33,928 INFO L78 Accepts]: Start accepts. Automaton has 4422 states and 7225 transitions. Word has length 112 [2023-11-21 22:15:33,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:15:33,929 INFO L495 AbstractCegarLoop]: Abstraction has 4422 states and 7225 transitions. [2023-11-21 22:15:33,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-21 22:15:33,930 INFO L276 IsEmpty]: Start isEmpty. Operand 4422 states and 7225 transitions. [2023-11-21 22:15:33,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-21 22:15:33,951 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:15:33,952 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:15:33,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:15:33,952 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:15:33,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:33,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1956805557, now seen corresponding path program 1 times [2023-11-21 22:15:33,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:33,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580429460] [2023-11-21 22:15:33,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:33,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:33,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:34,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:15:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:34,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 22:15:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:34,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-21 22:15:34,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:34,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 22:15:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:34,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-21 22:15:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:34,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-21 22:15:34,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:34,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-21 22:15:34,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:34,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-21 22:15:34,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:34,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-21 22:15:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:34,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 22:15:34,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:34,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-21 22:15:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:34,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-21 22:15:34,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:34,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-21 22:15:34,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:34,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-21 22:15:34,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:34,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-21 22:15:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:34,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-21 22:15:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:34,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:15:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:34,145 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 22:15:34,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:34,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580429460] [2023-11-21 22:15:34,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580429460] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:34,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:34,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:15:34,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035863854] [2023-11-21 22:15:34,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:34,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:15:34,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:34,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:15:34,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:15:34,148 INFO L87 Difference]: Start difference. First operand 4422 states and 7225 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-21 22:15:35,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:15:35,468 INFO L93 Difference]: Finished difference Result 11122 states and 18334 transitions. [2023-11-21 22:15:35,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:15:35,469 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 102 [2023-11-21 22:15:35,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:15:35,526 INFO L225 Difference]: With dead ends: 11122 [2023-11-21 22:15:35,526 INFO L226 Difference]: Without dead ends: 7388 [2023-11-21 22:15:35,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-21 22:15:35,542 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 330 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 449 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 449 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-21 22:15:35,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 445 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [449 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-21 22:15:35,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7388 states. [2023-11-21 22:15:36,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7388 to 7379. [2023-11-21 22:15:36,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7379 states, 5273 states have (on average 1.4983880144130477) internal successors, (7901), 5277 states have internal predecessors, (7901), 2077 states have call successors, (2077), 28 states have call predecessors, (2077), 28 states have return successors, (2076), 2075 states have call predecessors, (2076), 2076 states have call successors, (2076) [2023-11-21 22:15:36,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7379 states to 7379 states and 12054 transitions. [2023-11-21 22:15:36,250 INFO L78 Accepts]: Start accepts. Automaton has 7379 states and 12054 transitions. Word has length 102 [2023-11-21 22:15:36,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:15:36,250 INFO L495 AbstractCegarLoop]: Abstraction has 7379 states and 12054 transitions. [2023-11-21 22:15:36,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-21 22:15:36,252 INFO L276 IsEmpty]: Start isEmpty. Operand 7379 states and 12054 transitions. [2023-11-21 22:15:36,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-21 22:15:36,290 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:15:36,290 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:15:36,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:15:36,291 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:15:36,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:36,292 INFO L85 PathProgramCache]: Analyzing trace with hash -731178149, now seen corresponding path program 1 times [2023-11-21 22:15:36,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:36,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845585878] [2023-11-21 22:15:36,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:36,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:36,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:36,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:15:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:36,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 22:15:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:36,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-21 22:15:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:36,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 22:15:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:36,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-21 22:15:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:36,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-21 22:15:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:36,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-21 22:15:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:36,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-21 22:15:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:36,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-21 22:15:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:36,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-21 22:15:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:36,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-21 22:15:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:36,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-21 22:15:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:36,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-21 22:15:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:36,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-21 22:15:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:36,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-21 22:15:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:36,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-21 22:15:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:36,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:15:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:36,489 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 22:15:36,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:36,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845585878] [2023-11-21 22:15:36,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845585878] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:36,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:36,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:15:36,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584753937] [2023-11-21 22:15:36,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:36,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:15:36,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:36,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:15:36,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:15:36,492 INFO L87 Difference]: Start difference. First operand 7379 states and 12054 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-21 22:15:38,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:15:38,133 INFO L93 Difference]: Finished difference Result 18589 states and 30596 transitions. [2023-11-21 22:15:38,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:15:38,133 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 103 [2023-11-21 22:15:38,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:15:38,207 INFO L225 Difference]: With dead ends: 18589 [2023-11-21 22:15:38,208 INFO L226 Difference]: Without dead ends: 12332 [2023-11-21 22:15:38,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-21 22:15:38,233 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 328 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 441 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 441 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-21 22:15:38,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 445 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [441 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-21 22:15:38,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12332 states. [2023-11-21 22:15:39,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12332 to 12323. [2023-11-21 22:15:39,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12323 states, 9014 states have (on average 1.5001109385400488) internal successors, (13522), 9018 states have internal predecessors, (13522), 3280 states have call successors, (3280), 28 states have call predecessors, (3280), 28 states have return successors, (3279), 3278 states have call predecessors, (3279), 3279 states have call successors, (3279) [2023-11-21 22:15:39,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12323 states to 12323 states and 20081 transitions. [2023-11-21 22:15:39,176 INFO L78 Accepts]: Start accepts. Automaton has 12323 states and 20081 transitions. Word has length 103 [2023-11-21 22:15:39,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:15:39,177 INFO L495 AbstractCegarLoop]: Abstraction has 12323 states and 20081 transitions. [2023-11-21 22:15:39,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-21 22:15:39,178 INFO L276 IsEmpty]: Start isEmpty. Operand 12323 states and 20081 transitions. [2023-11-21 22:15:39,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-21 22:15:39,222 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:15:39,222 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:15:39,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 22:15:39,222 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:15:39,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:39,223 INFO L85 PathProgramCache]: Analyzing trace with hash 42942700, now seen corresponding path program 1 times [2023-11-21 22:15:39,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:39,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931211288] [2023-11-21 22:15:39,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:39,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:39,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:15:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:39,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 22:15:39,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:39,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-21 22:15:39,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:39,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 22:15:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:39,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-21 22:15:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:39,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-21 22:15:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:39,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-21 22:15:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:39,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-21 22:15:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:39,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-21 22:15:39,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:39,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-21 22:15:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:39,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-21 22:15:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:39,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-21 22:15:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:39,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-21 22:15:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:39,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-21 22:15:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:39,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-21 22:15:39,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:39,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-21 22:15:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:39,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:15:39,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:39,403 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 22:15:39,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:39,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931211288] [2023-11-21 22:15:39,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931211288] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:39,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:39,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:15:39,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664424541] [2023-11-21 22:15:39,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:39,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:15:39,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:39,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:15:39,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:15:39,406 INFO L87 Difference]: Start difference. First operand 12323 states and 20081 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-21 22:15:41,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:15:41,679 INFO L93 Difference]: Finished difference Result 32593 states and 53458 transitions. [2023-11-21 22:15:41,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:15:41,679 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 104 [2023-11-21 22:15:41,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:15:41,776 INFO L225 Difference]: With dead ends: 32593 [2023-11-21 22:15:41,776 INFO L226 Difference]: Without dead ends: 21844 [2023-11-21 22:15:41,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-21 22:15:41,813 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 326 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:15:41,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 442 Invalid, 1032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-21 22:15:41,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21844 states. [2023-11-21 22:15:43,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21844 to 21835. [2023-11-21 22:15:43,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21835 states, 16076 states have (on average 1.4925976611097287) internal successors, (23995), 16080 states have internal predecessors, (23995), 5730 states have call successors, (5730), 28 states have call predecessors, (5730), 28 states have return successors, (5729), 5728 states have call predecessors, (5729), 5729 states have call successors, (5729) [2023-11-21 22:15:43,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21835 states to 21835 states and 35454 transitions. [2023-11-21 22:15:43,307 INFO L78 Accepts]: Start accepts. Automaton has 21835 states and 35454 transitions. Word has length 104 [2023-11-21 22:15:43,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:15:43,309 INFO L495 AbstractCegarLoop]: Abstraction has 21835 states and 35454 transitions. [2023-11-21 22:15:43,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-21 22:15:43,309 INFO L276 IsEmpty]: Start isEmpty. Operand 21835 states and 35454 transitions. [2023-11-21 22:15:43,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-21 22:15:43,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:15:43,361 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:15:43,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 22:15:43,362 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:15:43,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:43,362 INFO L85 PathProgramCache]: Analyzing trace with hash -207703915, now seen corresponding path program 1 times [2023-11-21 22:15:43,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:43,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095138132] [2023-11-21 22:15:43,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:43,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:43,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:43,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:15:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:43,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 22:15:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:43,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-21 22:15:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:43,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 22:15:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:43,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-21 22:15:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:43,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-21 22:15:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:43,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-21 22:15:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:43,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-21 22:15:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:43,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-21 22:15:43,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:43,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-21 22:15:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:43,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-21 22:15:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:43,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-21 22:15:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:43,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-21 22:15:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:43,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-21 22:15:43,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:43,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-21 22:15:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:43,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-21 22:15:43,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:43,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:15:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:43,572 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 22:15:43,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:43,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095138132] [2023-11-21 22:15:43,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095138132] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:43,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:43,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:15:43,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866314907] [2023-11-21 22:15:43,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:43,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:15:43,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:43,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:15:43,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:15:43,575 INFO L87 Difference]: Start difference. First operand 21835 states and 35454 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-21 22:15:46,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:15:46,606 INFO L93 Difference]: Finished difference Result 59280 states and 96710 transitions. [2023-11-21 22:15:46,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:15:46,613 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 105 [2023-11-21 22:15:46,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:15:46,817 INFO L225 Difference]: With dead ends: 59280 [2023-11-21 22:15:46,817 INFO L226 Difference]: Without dead ends: 39614 [2023-11-21 22:15:46,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-21 22:15:46,877 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 324 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 449 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 449 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:15:46,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 445 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [449 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-21 22:15:46,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39614 states. [2023-11-21 22:15:49,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39614 to 39605. [2023-11-21 22:15:49,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39605 states, 29333 states have (on average 1.481982749803975) internal successors, (43471), 29337 states have internal predecessors, (43471), 10243 states have call successors, (10243), 28 states have call predecessors, (10243), 28 states have return successors, (10242), 10241 states have call predecessors, (10242), 10242 states have call successors, (10242) [2023-11-21 22:15:49,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39605 states to 39605 states and 63956 transitions. [2023-11-21 22:15:49,762 INFO L78 Accepts]: Start accepts. Automaton has 39605 states and 63956 transitions. Word has length 105 [2023-11-21 22:15:49,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:15:49,763 INFO L495 AbstractCegarLoop]: Abstraction has 39605 states and 63956 transitions. [2023-11-21 22:15:49,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-21 22:15:49,764 INFO L276 IsEmpty]: Start isEmpty. Operand 39605 states and 63956 transitions. [2023-11-21 22:15:49,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-21 22:15:49,851 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:15:49,851 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:15:49,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-21 22:15:49,852 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:15:49,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:49,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1310955452, now seen corresponding path program 1 times [2023-11-21 22:15:49,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:49,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099291813] [2023-11-21 22:15:49,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:49,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:49,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:49,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:15:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:49,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 22:15:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:49,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-21 22:15:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:50,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 22:15:50,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:50,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-21 22:15:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:50,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-21 22:15:50,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:50,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-21 22:15:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:50,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-21 22:15:50,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:50,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 22:15:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:50,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-21 22:15:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:50,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-21 22:15:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:50,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-21 22:15:50,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:50,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-21 22:15:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:50,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-21 22:15:50,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:50,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-21 22:15:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:50,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-21 22:15:50,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:50,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-21 22:15:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:50,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-21 22:15:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:50,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-21 22:15:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:50,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:15:50,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:50,092 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-21 22:15:50,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:50,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099291813] [2023-11-21 22:15:50,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099291813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:50,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:50,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:15:50,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047143059] [2023-11-21 22:15:50,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:50,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:15:50,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:50,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:15:50,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:15:50,098 INFO L87 Difference]: Start difference. First operand 39605 states and 63956 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-21 22:15:54,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:15:54,055 INFO L93 Difference]: Finished difference Result 73178 states and 118345 transitions. [2023-11-21 22:15:54,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:15:54,056 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 117 [2023-11-21 22:15:54,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted.