./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec3_product30.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec3_product30.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu --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 bcbcb0270b2ee5ae38e5dd3a933d2995b5c0488c9590f16a6543c0c656cfb023 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:46:49,777 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:46:49,851 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:46:49,857 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:46:49,858 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:46:49,886 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:46:49,889 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:46:49,890 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:46:49,891 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:46:49,895 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:46:49,897 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:46:49,898 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:46:49,898 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:46:49,900 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:46:49,900 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:46:49,901 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:46:49,901 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:46:49,902 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:46:49,902 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:46:49,903 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:46:49,903 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:46:49,904 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:46:49,904 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:46:49,904 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:46:49,905 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:46:49,906 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:46:49,906 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:46:49,907 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:46:49,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:49,907 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:46:49,909 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:46:49,909 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:46:49,909 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:46:49,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:46:49,910 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:46:49,910 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:46:49,910 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:46:49,910 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:46:49,911 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:46:49,911 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_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bcbcb0270b2ee5ae38e5dd3a933d2995b5c0488c9590f16a6543c0c656cfb023 [2023-11-19 07:46:50,218 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:46:50,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:46:50,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:46:50,251 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:46:50,251 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:46:50,253 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/email_spec3_product30.cil.c [2023-11-19 07:46:53,342 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:46:53,776 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:46:53,777 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/sv-benchmarks/c/product-lines/email_spec3_product30.cil.c [2023-11-19 07:46:53,810 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/data/c6625f2f3/9a6cd756d97f473781094603ff86a164/FLAGad8e77fc5 [2023-11-19 07:46:53,828 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/data/c6625f2f3/9a6cd756d97f473781094603ff86a164 [2023-11-19 07:46:53,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:46:53,838 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:46:53,844 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:53,845 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:46:53,852 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:46:53,856 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:53" (1/1) ... [2023-11-19 07:46:53,857 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@87b12b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:53, skipping insertion in model container [2023-11-19 07:46:53,858 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:53" (1/1) ... [2023-11-19 07:46:53,953 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:46:54,236 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_c732af72-f622-4c56-8d61-6a404cea0abd/sv-benchmarks/c/product-lines/email_spec3_product30.cil.c[5243,5256] [2023-11-19 07:46:54,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:54,702 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:46:54,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2023-11-19 07:46:54,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [208] [2023-11-19 07:46:54,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [217] [2023-11-19 07:46:54,717 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [619] [2023-11-19 07:46:54,717 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [985] [2023-11-19 07:46:54,717 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1288] [2023-11-19 07:46:54,717 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1504] [2023-11-19 07:46:54,718 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1539] [2023-11-19 07:46:54,718 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [1903] [2023-11-19 07:46:54,719 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1961] [2023-11-19 07:46:54,719 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [3028] [2023-11-19 07:46:54,732 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_c732af72-f622-4c56-8d61-6a404cea0abd/sv-benchmarks/c/product-lines/email_spec3_product30.cil.c[5243,5256] [2023-11-19 07:46:54,889 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:54,927 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:46:54,935 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:46:54,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54 WrapperNode [2023-11-19 07:46:54,936 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:54,937 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:54,937 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:46:54,938 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:46:54,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54" (1/1) ... [2023-11-19 07:46:54,977 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54" (1/1) ... [2023-11-19 07:46:55,056 INFO L138 Inliner]: procedures = 132, calls = 227, calls flagged for inlining = 60, calls inlined = 50, statements flattened = 951 [2023-11-19 07:46:55,056 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:55,057 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:46:55,062 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:46:55,063 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:46:55,075 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54" (1/1) ... [2023-11-19 07:46:55,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54" (1/1) ... [2023-11-19 07:46:55,098 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54" (1/1) ... [2023-11-19 07:46:55,098 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54" (1/1) ... [2023-11-19 07:46:55,127 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54" (1/1) ... [2023-11-19 07:46:55,138 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54" (1/1) ... [2023-11-19 07:46:55,144 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54" (1/1) ... [2023-11-19 07:46:55,150 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54" (1/1) ... [2023-11-19 07:46:55,159 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:46:55,160 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:46:55,161 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:46:55,161 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:46:55,162 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54" (1/1) ... [2023-11-19 07:46:55,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:55,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:55,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:55,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:46:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-11-19 07:46:55,280 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-11-19 07:46:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-19 07:46:55,280 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-19 07:46:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-19 07:46:55,280 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-19 07:46:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-19 07:46:55,281 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-19 07:46:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-19 07:46:55,281 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-19 07:46:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-19 07:46:55,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-19 07:46:55,282 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-19 07:46:55,282 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-19 07:46:55,282 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-19 07:46:55,282 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-19 07:46:55,282 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-19 07:46:55,283 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-19 07:46:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-19 07:46:55,283 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-19 07:46:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-19 07:46:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-19 07:46:55,283 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-19 07:46:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-19 07:46:55,284 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-19 07:46:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:46:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-19 07:46:55,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-19 07:46:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-11-19 07:46:55,285 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-11-19 07:46:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-19 07:46:55,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-19 07:46:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-11-19 07:46:55,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-11-19 07:46:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-19 07:46:55,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-19 07:46:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-19 07:46:55,286 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-19 07:46:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-11-19 07:46:55,286 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-11-19 07:46:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-19 07:46:55,286 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-19 07:46:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-19 07:46:55,287 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-19 07:46:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-19 07:46:55,287 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-19 07:46:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-19 07:46:55,287 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-19 07:46:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:46:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-19 07:46:55,288 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-19 07:46:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:46:55,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:46:55,552 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:46:55,556 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:46:56,488 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:46:56,509 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:46:56,509 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:46:56,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:56 BoogieIcfgContainer [2023-11-19 07:46:56,522 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:46:56,525 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:46:56,525 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:46:56,528 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:46:56,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:46:53" (1/3) ... [2023-11-19 07:46:56,530 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@309de06f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:56, skipping insertion in model container [2023-11-19 07:46:56,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:54" (2/3) ... [2023-11-19 07:46:56,533 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@309de06f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:56, skipping insertion in model container [2023-11-19 07:46:56,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:56" (3/3) ... [2023-11-19 07:46:56,535 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product30.cil.c [2023-11-19 07:46:56,555 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:46:56,555 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:46:56,637 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:46:56,644 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;@ee9036d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:46:56,645 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:46:56,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 358 states, 274 states have (on average 1.510948905109489) internal successors, (414), 280 states have internal predecessors, (414), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2023-11-19 07:46:56,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-19 07:46:56,679 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:56,680 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:56,681 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:46:56,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:56,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1804830783, now seen corresponding path program 1 times [2023-11-19 07:46:56,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:56,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773178030] [2023-11-19 07:46:56,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:56,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:56,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:57,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:46:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:57,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:46:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:57,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:46:57,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:57,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:46:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:57,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-19 07:46:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:57,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:46:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:57,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-19 07:46:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:57,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-19 07:46:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:57,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 07:46:57,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:57,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-19 07:46:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:57,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-19 07:46:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:57,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-19 07:46:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:57,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-19 07:46:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:57,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-19 07:46:57,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:57,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-19 07:46:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:57,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-19 07:46:57,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:57,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-19 07:46:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:57,781 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-19 07:46:57,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:57,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773178030] [2023-11-19 07:46:57,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773178030] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:46:57,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293163707] [2023-11-19 07:46:57,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:57,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:46:57,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:57,789 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:46:57,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:46:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:58,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 1194 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:46:58,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:46:58,337 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-19 07:46:58,338 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:46:58,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293163707] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:58,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:46:58,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-11-19 07:46:58,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196560203] [2023-11-19 07:46:58,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:58,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:46:58,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:58,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:46:58,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:46:58,397 INFO L87 Difference]: Start difference. First operand has 358 states, 274 states have (on average 1.510948905109489) internal successors, (414), 280 states have internal predecessors, (414), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 07:46:58,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:46:58,480 INFO L93 Difference]: Finished difference Result 561 states and 814 transitions. [2023-11-19 07:46:58,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:46:58,483 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 130 [2023-11-19 07:46:58,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:46:58,499 INFO L225 Difference]: With dead ends: 561 [2023-11-19 07:46:58,500 INFO L226 Difference]: Without dead ends: 350 [2023-11-19 07:46:58,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:46:58,510 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:46:58,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:46:58,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2023-11-19 07:46:58,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2023-11-19 07:46:58,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 268 states have (on average 1.5037313432835822) internal successors, (403), 272 states have internal predecessors, (403), 58 states have call successors, (58), 24 states have call predecessors, (58), 23 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-11-19 07:46:58,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 516 transitions. [2023-11-19 07:46:58,595 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 516 transitions. Word has length 130 [2023-11-19 07:46:58,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:46:58,597 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 516 transitions. [2023-11-19 07:46:58,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 07:46:58,597 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 516 transitions. [2023-11-19 07:46:58,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-19 07:46:58,603 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:58,603 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:58,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-19 07:46:58,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 07:46:58,822 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:46:58,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:58,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1084620292, now seen corresponding path program 1 times [2023-11-19 07:46:58,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:58,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855093541] [2023-11-19 07:46:58,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:58,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:58,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:59,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:46:59,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:59,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:46:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:59,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:46:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:59,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:46:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:59,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-19 07:46:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:59,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:46:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:59,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-19 07:46:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:59,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-19 07:46:59,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:59,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-19 07:46:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:59,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-19 07:46:59,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:59,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:46:59,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:59,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-19 07:46:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:59,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-19 07:46:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:59,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-19 07:46:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:59,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-19 07:46:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:59,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-19 07:46:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:59,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-19 07:46:59,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:59,308 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-19 07:46:59,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:59,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855093541] [2023-11-19 07:46:59,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855093541] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:46:59,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541850673] [2023-11-19 07:46:59,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:59,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:46:59,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:59,316 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:46:59,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:46:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:59,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 1195 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:46:59,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:46:59,721 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-19 07:46:59,721 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:46:59,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541850673] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:59,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:46:59,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-19 07:46:59,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909433681] [2023-11-19 07:46:59,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:59,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:46:59,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:59,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:46:59,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:46:59,726 INFO L87 Difference]: Start difference. First operand 350 states and 516 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 07:46:59,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:46:59,769 INFO L93 Difference]: Finished difference Result 550 states and 791 transitions. [2023-11-19 07:46:59,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:46:59,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2023-11-19 07:46:59,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:46:59,775 INFO L225 Difference]: With dead ends: 550 [2023-11-19 07:46:59,776 INFO L226 Difference]: Without dead ends: 353 [2023-11-19 07:46:59,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:46:59,781 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 1 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:46:59,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1026 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:46:59,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2023-11-19 07:46:59,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 352. [2023-11-19 07:46:59,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 270 states have (on average 1.5) internal successors, (405), 274 states have internal predecessors, (405), 58 states have call successors, (58), 24 states have call predecessors, (58), 23 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-11-19 07:46:59,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 518 transitions. [2023-11-19 07:46:59,838 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 518 transitions. Word has length 131 [2023-11-19 07:46:59,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:46:59,841 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 518 transitions. [2023-11-19 07:46:59,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 07:46:59,841 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 518 transitions. [2023-11-19 07:46:59,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-19 07:46:59,851 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:59,851 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:59,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-19 07:47:00,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-19 07:47:00,068 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:47:00,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:00,068 INFO L85 PathProgramCache]: Analyzing trace with hash 877084948, now seen corresponding path program 1 times [2023-11-19 07:47:00,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:00,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360905309] [2023-11-19 07:47:00,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:00,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:00,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:47:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:00,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:47:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:00,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:47:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:00,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:47:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:00,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-19 07:47:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:00,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:47:00,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:00,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-19 07:47:00,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:00,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-19 07:47:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:00,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 07:47:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:00,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-19 07:47:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:00,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-19 07:47:00,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:00,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-19 07:47:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:00,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-19 07:47:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:00,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-19 07:47:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:00,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-19 07:47:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:00,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-19 07:47:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:00,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-19 07:47:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:00,422 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-19 07:47:00,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:00,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360905309] [2023-11-19 07:47:00,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360905309] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:47:00,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983577594] [2023-11-19 07:47:00,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:00,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:47:00,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:00,428 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:47:00,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:47:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:00,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:47:00,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:00,810 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-19 07:47:00,810 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:47:00,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983577594] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:00,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:47:00,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-19 07:47:00,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994475686] [2023-11-19 07:47:00,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:00,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:47:00,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:00,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:00,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:47:00,816 INFO L87 Difference]: Start difference. First operand 352 states and 518 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 07:47:00,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:00,884 INFO L93 Difference]: Finished difference Result 734 states and 1095 transitions. [2023-11-19 07:47:00,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:00,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 140 [2023-11-19 07:47:00,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:00,891 INFO L225 Difference]: With dead ends: 734 [2023-11-19 07:47:00,892 INFO L226 Difference]: Without dead ends: 409 [2023-11-19 07:47:00,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:47:00,897 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 107 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:00,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 996 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:47:00,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-11-19 07:47:00,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 401. [2023-11-19 07:47:00,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 308 states have (on average 1.5162337662337662) internal successors, (467), 312 states have internal predecessors, (467), 69 states have call successors, (69), 24 states have call predecessors, (69), 23 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2023-11-19 07:47:00,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 602 transitions. [2023-11-19 07:47:00,955 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 602 transitions. Word has length 140 [2023-11-19 07:47:00,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:00,956 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 602 transitions. [2023-11-19 07:47:00,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 07:47:00,957 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 602 transitions. [2023-11-19 07:47:00,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-19 07:47:00,962 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:00,962 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:00,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:01,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:47:01,176 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:47:01,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:01,176 INFO L85 PathProgramCache]: Analyzing trace with hash 888237591, now seen corresponding path program 1 times [2023-11-19 07:47:01,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:01,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952713378] [2023-11-19 07:47:01,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:01,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:01,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:47:01,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:01,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:47:01,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:01,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:47:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:01,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:47:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:01,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-19 07:47:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:01,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:47:01,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:01,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-19 07:47:01,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:01,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-19 07:47:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:01,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-19 07:47:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:01,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-19 07:47:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:01,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-19 07:47:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:01,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-19 07:47:01,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:01,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-19 07:47:01,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:01,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-19 07:47:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:01,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-19 07:47:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:01,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-19 07:47:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:01,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-19 07:47:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:01,536 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-19 07:47:01,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:01,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952713378] [2023-11-19 07:47:01,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952713378] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:47:01,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119972963] [2023-11-19 07:47:01,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:01,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:47:01,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:01,540 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:47:01,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:47:01,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:01,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 1225 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:47:01,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:01,959 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:47:01,960 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:47:01,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119972963] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:01,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:47:01,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-11-19 07:47:01,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916105190] [2023-11-19 07:47:01,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:01,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:47:01,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:01,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:47:01,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:47:01,964 INFO L87 Difference]: Start difference. First operand 401 states and 602 transitions. Second operand has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-19 07:47:02,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:02,059 INFO L93 Difference]: Finished difference Result 793 states and 1194 transitions. [2023-11-19 07:47:02,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:47:02,060 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 141 [2023-11-19 07:47:02,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:02,064 INFO L225 Difference]: With dead ends: 793 [2023-11-19 07:47:02,064 INFO L226 Difference]: Without dead ends: 403 [2023-11-19 07:47:02,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:47:02,070 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 8 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2017 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:02,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2017 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:47:02,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2023-11-19 07:47:02,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2023-11-19 07:47:02,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 309 states have (on average 1.5145631067961165) internal successors, (468), 314 states have internal predecessors, (468), 69 states have call successors, (69), 24 states have call predecessors, (69), 24 states have return successors, (68), 66 states have call predecessors, (68), 66 states have call successors, (68) [2023-11-19 07:47:02,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 605 transitions. [2023-11-19 07:47:02,107 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 605 transitions. Word has length 141 [2023-11-19 07:47:02,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:02,107 INFO L495 AbstractCegarLoop]: Abstraction has 403 states and 605 transitions. [2023-11-19 07:47:02,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-19 07:47:02,108 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 605 transitions. [2023-11-19 07:47:02,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-19 07:47:02,112 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:02,112 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:02,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:02,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:47:02,335 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:47:02,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:02,336 INFO L85 PathProgramCache]: Analyzing trace with hash -757453659, now seen corresponding path program 1 times [2023-11-19 07:47:02,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:02,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962261918] [2023-11-19 07:47:02,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:02,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:02,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:47:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:02,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:47:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:02,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:47:02,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:02,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:47:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:02,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-19 07:47:02,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:02,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-19 07:47:02,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:02,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-19 07:47:02,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:02,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-19 07:47:02,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:02,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-19 07:47:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:02,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-19 07:47:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:02,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-19 07:47:02,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:02,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-19 07:47:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:02,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-19 07:47:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:02,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-19 07:47:02,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:02,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-19 07:47:02,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:02,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-19 07:47:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:02,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-19 07:47:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:02,690 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-19 07:47:02,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:02,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962261918] [2023-11-19 07:47:02,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962261918] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:47:02,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742614487] [2023-11-19 07:47:02,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:02,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:47:02,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:02,692 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:47:02,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:47:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:03,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 1226 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:47:03,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:03,078 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:47:03,078 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:47:03,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742614487] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:03,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:47:03,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-11-19 07:47:03,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531296555] [2023-11-19 07:47:03,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:03,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:47:03,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:03,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:47:03,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:47:03,081 INFO L87 Difference]: Start difference. First operand 403 states and 605 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-19 07:47:03,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:03,165 INFO L93 Difference]: Finished difference Result 795 states and 1199 transitions. [2023-11-19 07:47:03,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:47:03,166 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 142 [2023-11-19 07:47:03,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:03,169 INFO L225 Difference]: With dead ends: 795 [2023-11-19 07:47:03,170 INFO L226 Difference]: Without dead ends: 405 [2023-11-19 07:47:03,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-11-19 07:47:03,172 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 8 mSDsluCounter, 1498 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2003 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:03,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2003 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:47:03,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2023-11-19 07:47:03,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2023-11-19 07:47:03,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 310 states have (on average 1.5129032258064516) internal successors, (469), 316 states have internal predecessors, (469), 69 states have call successors, (69), 24 states have call predecessors, (69), 25 states have return successors, (73), 66 states have call predecessors, (73), 66 states have call successors, (73) [2023-11-19 07:47:03,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 611 transitions. [2023-11-19 07:47:03,195 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 611 transitions. Word has length 142 [2023-11-19 07:47:03,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:03,196 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 611 transitions. [2023-11-19 07:47:03,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-19 07:47:03,196 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 611 transitions. [2023-11-19 07:47:03,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-19 07:47:03,200 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:03,200 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:03,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:03,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:47:03,420 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:47:03,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:03,421 INFO L85 PathProgramCache]: Analyzing trace with hash 21931431, now seen corresponding path program 1 times [2023-11-19 07:47:03,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:03,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381085674] [2023-11-19 07:47:03,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:03,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:03,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:47:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:03,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:47:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:03,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:47:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:03,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:47:03,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:03,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:47:03,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:03,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:47:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:03,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 07:47:03,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:03,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:47:03,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:03,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-19 07:47:03,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:03,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 07:47:03,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:03,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-19 07:47:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:03,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-19 07:47:03,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:03,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-19 07:47:03,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:03,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-19 07:47:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:03,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-19 07:47:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:03,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-19 07:47:03,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:03,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-19 07:47:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:03,781 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-19 07:47:03,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:03,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381085674] [2023-11-19 07:47:03,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381085674] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:03,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:03,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:47:03,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319415450] [2023-11-19 07:47:03,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:03,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:47:03,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:03,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:47:03,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:47:03,785 INFO L87 Difference]: Start difference. First operand 405 states and 611 transitions. Second operand has 9 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-19 07:47:06,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:06,285 INFO L93 Difference]: Finished difference Result 910 states and 1376 transitions. [2023-11-19 07:47:06,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:47:06,286 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 143 [2023-11-19 07:47:06,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:06,291 INFO L225 Difference]: With dead ends: 910 [2023-11-19 07:47:06,291 INFO L226 Difference]: Without dead ends: 528 [2023-11-19 07:47:06,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-19 07:47:06,294 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 1141 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 2313 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 2693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 2313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:06,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1142 Valid, 1102 Invalid, 2693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 2313 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-19 07:47:06,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2023-11-19 07:47:06,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 405. [2023-11-19 07:47:06,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 310 states have (on average 1.5129032258064516) internal successors, (469), 316 states have internal predecessors, (469), 69 states have call successors, (69), 24 states have call predecessors, (69), 25 states have return successors, (72), 66 states have call predecessors, (72), 66 states have call successors, (72) [2023-11-19 07:47:06,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 610 transitions. [2023-11-19 07:47:06,349 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 610 transitions. Word has length 143 [2023-11-19 07:47:06,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:06,350 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 610 transitions. [2023-11-19 07:47:06,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-19 07:47:06,350 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 610 transitions. [2023-11-19 07:47:06,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-19 07:47:06,354 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:06,354 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:06,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:47:06,354 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:47:06,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:06,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1166385811, now seen corresponding path program 2 times [2023-11-19 07:47:06,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:06,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861806421] [2023-11-19 07:47:06,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:06,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:06,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:47:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:47:06,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:47:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:47:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:47:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-19 07:47:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 07:47:06,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-19 07:47:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-19 07:47:06,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-19 07:47:06,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-19 07:47:06,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-19 07:47:06,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-19 07:47:06,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-19 07:47:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-19 07:47:06,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-19 07:47:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-19 07:47:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,717 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-19 07:47:06,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:06,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861806421] [2023-11-19 07:47:06,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861806421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:06,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:06,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:47:06,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966237355] [2023-11-19 07:47:06,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:06,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:47:06,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:06,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:47:06,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:47:06,721 INFO L87 Difference]: Start difference. First operand 405 states and 610 transitions. Second operand has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-19 07:47:09,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:09,155 INFO L93 Difference]: Finished difference Result 912 states and 1379 transitions. [2023-11-19 07:47:09,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:47:09,156 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 144 [2023-11-19 07:47:09,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:09,161 INFO L225 Difference]: With dead ends: 912 [2023-11-19 07:47:09,161 INFO L226 Difference]: Without dead ends: 530 [2023-11-19 07:47:09,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-19 07:47:09,164 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 1135 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 2351 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 2725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 2351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:09,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1136 Valid, 1103 Invalid, 2725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [374 Valid, 2351 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-19 07:47:09,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2023-11-19 07:47:09,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 407. [2023-11-19 07:47:09,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 311 states have (on average 1.5112540192926045) internal successors, (470), 318 states have internal predecessors, (470), 69 states have call successors, (69), 24 states have call predecessors, (69), 26 states have return successors, (74), 66 states have call predecessors, (74), 66 states have call successors, (74) [2023-11-19 07:47:09,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 613 transitions. [2023-11-19 07:47:09,223 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 613 transitions. Word has length 144 [2023-11-19 07:47:09,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:09,224 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 613 transitions. [2023-11-19 07:47:09,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-19 07:47:09,224 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 613 transitions. [2023-11-19 07:47:09,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-19 07:47:09,227 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:09,228 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:09,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:47:09,228 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:47:09,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:09,229 INFO L85 PathProgramCache]: Analyzing trace with hash -311728212, now seen corresponding path program 1 times [2023-11-19 07:47:09,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:09,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853928583] [2023-11-19 07:47:09,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:09,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:09,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:09,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:47:09,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:09,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:47:09,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:09,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:47:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:09,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:47:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:09,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:47:09,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:09,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:47:09,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:09,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-19 07:47:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:09,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-19 07:47:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:09,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:47:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:09,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-19 07:47:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:09,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-19 07:47:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:09,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-19 07:47:09,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:09,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-19 07:47:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:09,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-19 07:47:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:09,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-19 07:47:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:09,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-19 07:47:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:09,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-19 07:47:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:09,567 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-19 07:47:09,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:09,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853928583] [2023-11-19 07:47:09,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853928583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:09,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:09,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-19 07:47:09,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75684219] [2023-11-19 07:47:09,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:09,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:47:09,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:09,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:47:09,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:47:09,570 INFO L87 Difference]: Start difference. First operand 407 states and 613 transitions. Second operand has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-19 07:47:12,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:12,682 INFO L93 Difference]: Finished difference Result 910 states and 1374 transitions. [2023-11-19 07:47:12,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:47:12,683 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 145 [2023-11-19 07:47:12,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:12,687 INFO L225 Difference]: With dead ends: 910 [2023-11-19 07:47:12,687 INFO L226 Difference]: Without dead ends: 530 [2023-11-19 07:47:12,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-19 07:47:12,690 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 1139 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3991 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 4364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 3991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:12,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1140 Valid, 1524 Invalid, 4364 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [373 Valid, 3991 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-19 07:47:12,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2023-11-19 07:47:12,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 407. [2023-11-19 07:47:12,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 311 states have (on average 1.5112540192926045) internal successors, (470), 318 states have internal predecessors, (470), 69 states have call successors, (69), 24 states have call predecessors, (69), 26 states have return successors, (73), 66 states have call predecessors, (73), 66 states have call successors, (73) [2023-11-19 07:47:12,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 612 transitions. [2023-11-19 07:47:12,732 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 612 transitions. Word has length 145 [2023-11-19 07:47:12,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:12,733 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 612 transitions. [2023-11-19 07:47:12,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-19 07:47:12,733 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 612 transitions. [2023-11-19 07:47:12,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-19 07:47:12,737 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:12,737 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:12,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:47:12,737 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:47:12,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:12,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1467632570, now seen corresponding path program 2 times [2023-11-19 07:47:12,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:12,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601918384] [2023-11-19 07:47:12,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:12,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:12,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:12,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:47:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:12,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:47:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:12,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:47:12,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:12,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:47:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:12,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:47:12,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:12,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:47:12,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:13,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-19 07:47:13,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:13,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-19 07:47:13,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:13,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-19 07:47:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:13,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-19 07:47:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:13,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-19 07:47:13,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:13,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-19 07:47:13,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:13,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-19 07:47:13,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:13,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-19 07:47:13,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:13,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-19 07:47:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:13,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-19 07:47:13,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:13,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-19 07:47:13,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:13,050 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-19 07:47:13,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:13,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601918384] [2023-11-19 07:47:13,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601918384] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:13,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:13,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-19 07:47:13,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330378] [2023-11-19 07:47:13,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:13,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:47:13,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:13,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:47:13,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:47:13,054 INFO L87 Difference]: Start difference. First operand 407 states and 612 transitions. Second operand has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-19 07:47:16,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:16,124 INFO L93 Difference]: Finished difference Result 912 states and 1380 transitions. [2023-11-19 07:47:16,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:47:16,125 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 146 [2023-11-19 07:47:16,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:16,130 INFO L225 Difference]: With dead ends: 912 [2023-11-19 07:47:16,130 INFO L226 Difference]: Without dead ends: 532 [2023-11-19 07:47:16,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-19 07:47:16,132 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 1141 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3943 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 4322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 379 IncrementalHoareTripleChecker+Valid, 3943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:16,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1142 Valid, 1523 Invalid, 4322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [379 Valid, 3943 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-19 07:47:16,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2023-11-19 07:47:16,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 409. [2023-11-19 07:47:16,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 312 states have (on average 1.5096153846153846) internal successors, (471), 320 states have internal predecessors, (471), 69 states have call successors, (69), 24 states have call predecessors, (69), 27 states have return successors, (78), 66 states have call predecessors, (78), 66 states have call successors, (78) [2023-11-19 07:47:16,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 618 transitions. [2023-11-19 07:47:16,175 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 618 transitions. Word has length 146 [2023-11-19 07:47:16,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:16,177 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 618 transitions. [2023-11-19 07:47:16,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-19 07:47:16,177 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 618 transitions. [2023-11-19 07:47:16,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-19 07:47:16,181 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:16,181 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:16,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:47:16,181 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:47:16,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:16,182 INFO L85 PathProgramCache]: Analyzing trace with hash -2142759503, now seen corresponding path program 1 times [2023-11-19 07:47:16,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:16,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631496735] [2023-11-19 07:47:16,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:16,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:16,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:47:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:16,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:47:16,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:16,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:47:16,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:16,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:47:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:16,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:47:16,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:16,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:47:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:16,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-19 07:47:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:16,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-19 07:47:16,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:16,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-19 07:47:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:16,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-19 07:47:16,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:16,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-19 07:47:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:16,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-19 07:47:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:16,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-19 07:47:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:16,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-19 07:47:16,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:16,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-19 07:47:16,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:16,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-19 07:47:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:16,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-19 07:47:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:16,544 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-19 07:47:16,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:16,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631496735] [2023-11-19 07:47:16,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631496735] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:47:16,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045409087] [2023-11-19 07:47:16,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:16,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:47:16,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:16,548 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:47:16,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:47:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:16,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 1231 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:47:16,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:17,003 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-19 07:47:17,003 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:47:17,115 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-19 07:47:17,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045409087] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:47:17,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:47:17,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-11-19 07:47:17,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108662266] [2023-11-19 07:47:17,119 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:47:17,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-19 07:47:17,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:17,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-19 07:47:17,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:47:17,122 INFO L87 Difference]: Start difference. First operand 409 states and 618 transitions. Second operand has 15 states, 14 states have (on average 10.571428571428571) internal successors, (148), 11 states have internal predecessors, (148), 4 states have call successors, (40), 6 states have call predecessors, (40), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) [2023-11-19 07:47:20,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:20,843 INFO L93 Difference]: Finished difference Result 1262 states and 2012 transitions. [2023-11-19 07:47:20,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-19 07:47:20,844 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.571428571428571) internal successors, (148), 11 states have internal predecessors, (148), 4 states have call successors, (40), 6 states have call predecessors, (40), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) Word has length 147 [2023-11-19 07:47:20,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:20,854 INFO L225 Difference]: With dead ends: 1262 [2023-11-19 07:47:20,854 INFO L226 Difference]: Without dead ends: 884 [2023-11-19 07:47:20,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2023-11-19 07:47:20,858 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 2217 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 4316 mSolverCounterSat, 703 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2234 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 5019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 703 IncrementalHoareTripleChecker+Valid, 4316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:20,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2234 Valid, 1685 Invalid, 5019 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [703 Valid, 4316 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-19 07:47:20,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2023-11-19 07:47:20,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 737. [2023-11-19 07:47:20,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 576 states have (on average 1.5659722222222223) internal successors, (902), 584 states have internal predecessors, (902), 133 states have call successors, (133), 24 states have call predecessors, (133), 27 states have return successors, (152), 130 states have call predecessors, (152), 130 states have call successors, (152) [2023-11-19 07:47:20,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1187 transitions. [2023-11-19 07:47:20,963 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1187 transitions. Word has length 147 [2023-11-19 07:47:20,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:20,964 INFO L495 AbstractCegarLoop]: Abstraction has 737 states and 1187 transitions. [2023-11-19 07:47:20,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.571428571428571) internal successors, (148), 11 states have internal predecessors, (148), 4 states have call successors, (40), 6 states have call predecessors, (40), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) [2023-11-19 07:47:20,964 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1187 transitions. [2023-11-19 07:47:20,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-19 07:47:20,970 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:20,971 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:20,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:21,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c732af72-f622-4c56-8d61-6a404cea0abd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:47:21,192 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:47:21,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:21,192 INFO L85 PathProgramCache]: Analyzing trace with hash 631914593, now seen corresponding path program 1 times [2023-11-19 07:47:21,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:21,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093668230] [2023-11-19 07:47:21,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:21,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:21,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:21,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:47:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:21,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:47:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:21,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:47:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:21,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:47:21,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:21,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:47:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:21,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:47:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:21,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-19 07:47:21,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:21,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-19 07:47:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:21,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-19 07:47:21,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:21,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-19 07:47:21,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:21,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-19 07:47:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:21,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-19 07:47:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:21,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-19 07:47:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:21,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-19 07:47:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:21,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-19 07:47:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:21,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-19 07:47:21,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:21,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-19 07:47:21,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:21,342 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-19 07:47:21,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:21,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093668230] [2023-11-19 07:47:21,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093668230] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:21,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:21,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:47:21,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361358834] [2023-11-19 07:47:21,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:21,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:47:21,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:21,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:47:21,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:47:21,345 INFO L87 Difference]: Start difference. First operand 737 states and 1187 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (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) [2023-11-19 07:47:23,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:23,126 INFO L93 Difference]: Finished difference Result 1827 states and 3011 transitions. [2023-11-19 07:47:23,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:47:23,127 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (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 150 [2023-11-19 07:47:23,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:23,137 INFO L225 Difference]: With dead ends: 1827 [2023-11-19 07:47:23,137 INFO L226 Difference]: Without dead ends: 1168 [2023-11-19 07:47:23,174 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 [2023-11-19 07:47:23,175 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 1233 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 1762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:23,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1248 Valid, 821 Invalid, 1762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [433 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-19 07:47:23,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2023-11-19 07:47:23,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1037. [2023-11-19 07:47:23,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 812 states have (on average 1.5849753694581281) internal successors, (1287), 820 states have internal predecessors, (1287), 197 states have call successors, (197), 24 states have call predecessors, (197), 27 states have return successors, (226), 194 states have call predecessors, (226), 194 states have call successors, (226) [2023-11-19 07:47:23,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1710 transitions. [2023-11-19 07:47:23,259 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1710 transitions. Word has length 150 [2023-11-19 07:47:23,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:23,260 INFO L495 AbstractCegarLoop]: Abstraction has 1037 states and 1710 transitions. [2023-11-19 07:47:23,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (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) [2023-11-19 07:47:23,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1710 transitions. [2023-11-19 07:47:23,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-19 07:47:23,268 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:23,268 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:23,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:47:23,268 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:47:23,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:23,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1749811701, now seen corresponding path program 1 times [2023-11-19 07:47:23,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:23,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495439599] [2023-11-19 07:47:23,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:23,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:23,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:47:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:23,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:47:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:23,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:47:23,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:23,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:47:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:23,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:47:23,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:23,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:47:23,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:23,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-19 07:47:23,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:23,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-19 07:47:23,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:23,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 07:47:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:23,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-19 07:47:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:23,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-19 07:47:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:23,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-19 07:47:23,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:23,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-19 07:47:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:23,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-19 07:47:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:23,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-19 07:47:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:23,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-19 07:47:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:23,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-19 07:47:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:23,425 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-19 07:47:23,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:23,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495439599] [2023-11-19 07:47:23,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495439599] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:23,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:23,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:47:23,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185487978] [2023-11-19 07:47:23,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:23,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:47:23,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:23,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:47:23,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:47:23,429 INFO L87 Difference]: Start difference. First operand 1037 states and 1710 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (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) [2023-11-19 07:47:25,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:25,142 INFO L93 Difference]: Finished difference Result 2567 states and 4291 transitions. [2023-11-19 07:47:25,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:47:25,143 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (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 151 [2023-11-19 07:47:25,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:25,156 INFO L225 Difference]: With dead ends: 2567 [2023-11-19 07:47:25,157 INFO L226 Difference]: Without dead ends: 1661 [2023-11-19 07:47:25,161 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 [2023-11-19 07:47:25,162 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 1232 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1247 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 436 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:25,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1247 Valid, 811 Invalid, 1732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [436 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-19 07:47:25,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2023-11-19 07:47:25,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 1530. [2023-11-19 07:47:25,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1530 states, 1210 states have (on average 1.594214876033058) internal successors, (1929), 1218 states have internal predecessors, (1929), 292 states have call successors, (292), 24 states have call predecessors, (292), 27 states have return successors, (321), 289 states have call predecessors, (321), 289 states have call successors, (321) [2023-11-19 07:47:25,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1530 states to 1530 states and 2542 transitions. [2023-11-19 07:47:25,277 INFO L78 Accepts]: Start accepts. Automaton has 1530 states and 2542 transitions. Word has length 151 [2023-11-19 07:47:25,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:25,277 INFO L495 AbstractCegarLoop]: Abstraction has 1530 states and 2542 transitions. [2023-11-19 07:47:25,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (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) [2023-11-19 07:47:25,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1530 states and 2542 transitions. [2023-11-19 07:47:25,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-19 07:47:25,290 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:25,290 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:25,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:47:25,291 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:47:25,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:25,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1554372947, now seen corresponding path program 1 times [2023-11-19 07:47:25,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:25,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421214227] [2023-11-19 07:47:25,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:25,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:25,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:25,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:47:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:25,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:47:25,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:25,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:47:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:25,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:47:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:25,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:47:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:25,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:47:25,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:25,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-19 07:47:25,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:25,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-19 07:47:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:25,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-19 07:47:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:25,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-19 07:47:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:25,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-19 07:47:25,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:25,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-19 07:47:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:25,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-19 07:47:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:25,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-19 07:47:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:25,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-19 07:47:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:25,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-19 07:47:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:25,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-19 07:47:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:25,434 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-19 07:47:25,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:25,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421214227] [2023-11-19 07:47:25,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421214227] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:25,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:25,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:47:25,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638910239] [2023-11-19 07:47:25,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:25,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:47:25,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:25,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:47:25,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:47:25,437 INFO L87 Difference]: Start difference. First operand 1530 states and 2542 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (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) [2023-11-19 07:47:27,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:27,136 INFO L93 Difference]: Finished difference Result 3669 states and 6209 transitions. [2023-11-19 07:47:27,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:47:27,137 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 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 152 [2023-11-19 07:47:27,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:27,163 INFO L225 Difference]: With dead ends: 3669 [2023-11-19 07:47:27,163 INFO L226 Difference]: Without dead ends: 2405 [2023-11-19 07:47:27,169 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 [2023-11-19 07:47:27,170 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 1223 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 423 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 1737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 423 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:27,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1238 Valid, 805 Invalid, 1737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [423 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-19 07:47:27,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2405 states. [2023-11-19 07:47:27,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2405 to 2274. [2023-11-19 07:47:27,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2274 states, 1831 states have (on average 1.6013107591480065) internal successors, (2932), 1839 states have internal predecessors, (2932), 415 states have call successors, (415), 24 states have call predecessors, (415), 27 states have return successors, (460), 412 states have call predecessors, (460), 412 states have call successors, (460) [2023-11-19 07:47:27,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 3807 transitions. [2023-11-19 07:47:27,347 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 3807 transitions. Word has length 152 [2023-11-19 07:47:27,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:27,347 INFO L495 AbstractCegarLoop]: Abstraction has 2274 states and 3807 transitions. [2023-11-19 07:47:27,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 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) [2023-11-19 07:47:27,348 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 3807 transitions. [2023-11-19 07:47:27,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-19 07:47:27,364 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:27,365 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:27,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:47:27,365 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:47:27,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:27,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1137027892, now seen corresponding path program 1 times [2023-11-19 07:47:27,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:27,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735747309] [2023-11-19 07:47:27,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:27,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:27,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:27,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:47:27,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:27,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:47:27,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:27,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:47:27,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:27,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:47:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:27,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:47:27,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:27,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:47:27,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:27,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-19 07:47:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:27,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-19 07:47:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:27,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-19 07:47:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:27,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-19 07:47:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:27,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-19 07:47:27,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:27,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-19 07:47:27,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:27,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-19 07:47:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:27,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-19 07:47:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:27,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-19 07:47:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:27,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-19 07:47:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:27,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-19 07:47:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:27,538 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-19 07:47:27,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:27,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735747309] [2023-11-19 07:47:27,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735747309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:27,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:27,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:47:27,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500876383] [2023-11-19 07:47:27,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:27,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:47:27,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:27,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:47:27,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:47:27,542 INFO L87 Difference]: Start difference. First operand 2274 states and 3807 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 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) [2023-11-19 07:47:29,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:29,229 INFO L93 Difference]: Finished difference Result 5378 states and 9189 transitions. [2023-11-19 07:47:29,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:47:29,230 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 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 153 [2023-11-19 07:47:29,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:29,259 INFO L225 Difference]: With dead ends: 5378 [2023-11-19 07:47:29,260 INFO L226 Difference]: Without dead ends: 3589 [2023-11-19 07:47:29,269 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 [2023-11-19 07:47:29,269 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 1228 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 432 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 1723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 432 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:29,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1243 Valid, 806 Invalid, 1723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [432 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-19 07:47:29,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3589 states. [2023-11-19 07:47:29,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3589 to 3458. [2023-11-19 07:47:29,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3458 states, 2836 states have (on average 1.6057827926657264) internal successors, (4554), 2844 states have internal predecessors, (4554), 594 states have call successors, (594), 24 states have call predecessors, (594), 27 states have return successors, (665), 591 states have call predecessors, (665), 591 states have call successors, (665) [2023-11-19 07:47:29,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3458 states to 3458 states and 5813 transitions. [2023-11-19 07:47:29,592 INFO L78 Accepts]: Start accepts. Automaton has 3458 states and 5813 transitions. Word has length 153 [2023-11-19 07:47:29,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:29,593 INFO L495 AbstractCegarLoop]: Abstraction has 3458 states and 5813 transitions. [2023-11-19 07:47:29,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 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) [2023-11-19 07:47:29,593 INFO L276 IsEmpty]: Start isEmpty. Operand 3458 states and 5813 transitions. [2023-11-19 07:47:29,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-19 07:47:29,612 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:29,613 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:29,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 07:47:29,613 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:47:29,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:29,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1907813591, now seen corresponding path program 1 times [2023-11-19 07:47:29,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:29,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805855852] [2023-11-19 07:47:29,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:29,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:29,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:47:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:29,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:47:29,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:29,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:47:29,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:29,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:47:29,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:29,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:47:29,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:29,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:47:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:29,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 07:47:29,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:29,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:47:29,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:29,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-19 07:47:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:29,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-19 07:47:29,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:29,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-19 07:47:29,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:29,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-19 07:47:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:29,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-19 07:47:29,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:29,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-19 07:47:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:29,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-19 07:47:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:29,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-19 07:47:29,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:29,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-19 07:47:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:29,770 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-19 07:47:29,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:29,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805855852] [2023-11-19 07:47:29,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805855852] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:29,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:29,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:47:29,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953202800] [2023-11-19 07:47:29,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:29,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:47:29,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:29,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:47:29,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:47:29,774 INFO L87 Difference]: Start difference. First operand 3458 states and 5813 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 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) [2023-11-19 07:47:31,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:31,595 INFO L93 Difference]: Finished difference Result 8451 states and 14505 transitions. [2023-11-19 07:47:31,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:47:31,600 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 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 154 [2023-11-19 07:47:31,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:31,646 INFO L225 Difference]: With dead ends: 8451 [2023-11-19 07:47:31,647 INFO L226 Difference]: Without dead ends: 5730 [2023-11-19 07:47:31,657 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 [2023-11-19 07:47:31,658 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 1219 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 423 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 1768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 423 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:31,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1234 Valid, 836 Invalid, 1768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [423 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-19 07:47:31,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5730 states. [2023-11-19 07:47:32,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5730 to 5599. [2023-11-19 07:47:32,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5599 states, 4601 states have (on average 1.599652249510976) internal successors, (7360), 4609 states have internal predecessors, (7360), 970 states have call successors, (970), 24 states have call predecessors, (970), 27 states have return successors, (1085), 967 states have call predecessors, (1085), 967 states have call successors, (1085) [2023-11-19 07:47:32,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5599 states to 5599 states and 9415 transitions. [2023-11-19 07:47:32,090 INFO L78 Accepts]: Start accepts. Automaton has 5599 states and 9415 transitions. Word has length 154 [2023-11-19 07:47:32,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:32,091 INFO L495 AbstractCegarLoop]: Abstraction has 5599 states and 9415 transitions. [2023-11-19 07:47:32,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 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) [2023-11-19 07:47:32,092 INFO L276 IsEmpty]: Start isEmpty. Operand 5599 states and 9415 transitions. [2023-11-19 07:47:32,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-19 07:47:32,122 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:32,122 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:32,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 07:47:32,123 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:47:32,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:32,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1465087056, now seen corresponding path program 1 times [2023-11-19 07:47:32,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:32,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23396815] [2023-11-19 07:47:32,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:32,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:32,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:47:32,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:32,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:47:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:32,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:47:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:32,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:47:32,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:32,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:47:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:32,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:47:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:32,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-19 07:47:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:32,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-19 07:47:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:32,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-19 07:47:32,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:32,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-19 07:47:32,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:32,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-19 07:47:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:32,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-19 07:47:32,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:32,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-19 07:47:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:32,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-19 07:47:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:32,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-19 07:47:32,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:32,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-19 07:47:32,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:32,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-19 07:47:32,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:32,295 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-19 07:47:32,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:32,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23396815] [2023-11-19 07:47:32,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23396815] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:32,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:32,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:47:32,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712086883] [2023-11-19 07:47:32,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:32,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:47:32,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:32,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:47:32,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:47:32,298 INFO L87 Difference]: Start difference. First operand 5599 states and 9415 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 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) [2023-11-19 07:47:34,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:34,246 INFO L93 Difference]: Finished difference Result 13873 states and 23806 transitions. [2023-11-19 07:47:34,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:47:34,247 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 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 155 [2023-11-19 07:47:34,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:34,317 INFO L225 Difference]: With dead ends: 13873 [2023-11-19 07:47:34,317 INFO L226 Difference]: Without dead ends: 9413 [2023-11-19 07:47:34,339 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 [2023-11-19 07:47:34,340 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 1217 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:34,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1232 Valid, 837 Invalid, 1758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-19 07:47:34,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9413 states. [2023-11-19 07:47:35,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9413 to 9282. [2023-11-19 07:47:35,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9282 states, 7678 states have (on average 1.5976816879395677) internal successors, (12267), 7686 states have internal predecessors, (12267), 1576 states have call successors, (1576), 24 states have call predecessors, (1576), 27 states have return successors, (1769), 1573 states have call predecessors, (1769), 1573 states have call successors, (1769) [2023-11-19 07:47:35,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9282 states to 9282 states and 15612 transitions. [2023-11-19 07:47:35,121 INFO L78 Accepts]: Start accepts. Automaton has 9282 states and 15612 transitions. Word has length 155 [2023-11-19 07:47:35,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:35,122 INFO L495 AbstractCegarLoop]: Abstraction has 9282 states and 15612 transitions. [2023-11-19 07:47:35,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 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) [2023-11-19 07:47:35,122 INFO L276 IsEmpty]: Start isEmpty. Operand 9282 states and 15612 transitions. [2023-11-19 07:47:35,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-19 07:47:35,175 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:35,175 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:35,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-19 07:47:35,176 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:47:35,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:35,176 INFO L85 PathProgramCache]: Analyzing trace with hash 626261333, now seen corresponding path program 1 times [2023-11-19 07:47:35,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:35,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429855460] [2023-11-19 07:47:35,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:35,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:35,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:47:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:35,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:47:35,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:35,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:47:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:35,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:47:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:35,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:47:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:35,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:47:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:35,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-19 07:47:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:35,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-19 07:47:35,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:35,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-19 07:47:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:35,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-19 07:47:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:35,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-19 07:47:35,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:35,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-19 07:47:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:35,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-19 07:47:35,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:35,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-19 07:47:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:35,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-19 07:47:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:35,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-19 07:47:35,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:35,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-11-19 07:47:35,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:35,354 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-19 07:47:35,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:35,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429855460] [2023-11-19 07:47:35,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429855460] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:35,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:35,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:47:35,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998382090] [2023-11-19 07:47:35,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:35,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:47:35,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:35,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:47:35,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:47:35,359 INFO L87 Difference]: Start difference. First operand 9282 states and 15612 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 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)