./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product16.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product16.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX --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 47500ba035fb95802358be3af8dbcb0499051de1fc18562b910c6b7689271057 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:40:24,145 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:40:24,229 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:40:24,242 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:40:24,243 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:40:24,282 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:40:24,286 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:40:24,287 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:40:24,288 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:40:24,292 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:40:24,293 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:40:24,293 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:40:24,294 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:40:24,295 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:40:24,295 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:40:24,296 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:40:24,296 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:40:24,297 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:40:24,298 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:40:24,298 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:40:24,298 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:40:24,302 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:40:24,303 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:40:24,303 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:40:24,304 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:40:24,304 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:40:24,304 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:40:24,304 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:40:24,305 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:40:24,305 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:40:24,305 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:40:24,306 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:40:24,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:40:24,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:40:24,310 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:40:24,310 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:40:24,311 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:40:24,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:40:24,312 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:40:24,313 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:40:24,313 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:40:24,314 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:40:24,315 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_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47500ba035fb95802358be3af8dbcb0499051de1fc18562b910c6b7689271057 [2024-11-08 18:40:24,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:40:24,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:40:24,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:40:24,667 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:40:24,668 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:40:24,670 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/product-lines/email_spec9_product16.cil.c Unable to find full path for "g++" [2024-11-08 18:40:27,166 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:40:27,546 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:40:27,547 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/sv-benchmarks/c/product-lines/email_spec9_product16.cil.c [2024-11-08 18:40:27,583 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/data/0969526ed/13d7e944cdce490fa732224ccae4ad32/FLAG7e5d73c4c [2024-11-08 18:40:27,763 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/data/0969526ed/13d7e944cdce490fa732224ccae4ad32 [2024-11-08 18:40:27,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:40:27,772 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:40:27,774 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:40:27,774 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:40:27,781 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:40:27,782 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:40:27" (1/1) ... [2024-11-08 18:40:27,784 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3989b3cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:27, skipping insertion in model container [2024-11-08 18:40:27,784 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:40:27" (1/1) ... [2024-11-08 18:40:27,873 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:40:28,604 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/sv-benchmarks/c/product-lines/email_spec9_product16.cil.c[33283,33296] [2024-11-08 18:40:28,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:40:28,781 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:40:28,796 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptForward_spec.i","") [48] [2024-11-08 18:40:28,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [105] [2024-11-08 18:40:28,801 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [216] [2024-11-08 18:40:28,801 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [233] [2024-11-08 18:40:28,801 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [599] [2024-11-08 18:40:28,802 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1004] [2024-11-08 18:40:28,802 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1278] [2024-11-08 18:40:28,802 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1316] [2024-11-08 18:40:28,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1541] [2024-11-08 18:40:28,804 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1550] [2024-11-08 18:40:28,804 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1832] [2024-11-08 18:40:28,928 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/sv-benchmarks/c/product-lines/email_spec9_product16.cil.c[33283,33296] [2024-11-08 18:40:28,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:40:29,014 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:40:29,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:29 WrapperNode [2024-11-08 18:40:29,015 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:40:29,016 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:40:29,017 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:40:29,017 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:40:29,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:29" (1/1) ... [2024-11-08 18:40:29,058 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:29" (1/1) ... [2024-11-08 18:40:29,134 INFO L138 Inliner]: procedures = 126, calls = 185, calls flagged for inlining = 57, calls inlined = 52, statements flattened = 1002 [2024-11-08 18:40:29,135 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:40:29,136 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:40:29,136 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:40:29,137 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:40:29,150 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:29" (1/1) ... [2024-11-08 18:40:29,150 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:29" (1/1) ... [2024-11-08 18:40:29,158 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:29" (1/1) ... [2024-11-08 18:40:29,186 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-08 18:40:29,187 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:29" (1/1) ... [2024-11-08 18:40:29,187 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:29" (1/1) ... [2024-11-08 18:40:29,208 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:29" (1/1) ... [2024-11-08 18:40:29,218 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:29" (1/1) ... [2024-11-08 18:40:29,223 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:29" (1/1) ... [2024-11-08 18:40:29,227 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:29" (1/1) ... [2024-11-08 18:40:29,269 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:40:29,271 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:40:29,275 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:40:29,275 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:40:29,276 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:29" (1/1) ... [2024-11-08 18:40:29,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:40:29,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:40:29,363 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:40:29,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:40:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-08 18:40:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-08 18:40:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-08 18:40:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-08 18:40:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-08 18:40:29,422 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-08 18:40:29,423 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-08 18:40:29,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-08 18:40:29,423 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-08 18:40:29,424 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-08 18:40:29,424 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-08 18:40:29,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-08 18:40:29,424 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-08 18:40:29,425 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-08 18:40:29,425 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-08 18:40:29,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-08 18:40:29,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:40:29,425 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-08 18:40:29,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-08 18:40:29,426 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-08 18:40:29,426 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-08 18:40:29,426 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-08 18:40:29,426 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-08 18:40:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-08 18:40:29,427 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-08 18:40:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-08 18:40:29,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-08 18:40:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-08 18:40:29,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-08 18:40:29,428 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-08 18:40:29,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-08 18:40:29,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:40:29,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:40:29,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 18:40:29,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 18:40:29,429 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-08 18:40:29,429 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-08 18:40:29,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:40:29,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:40:29,692 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:40:29,695 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:40:30,737 INFO L? ?]: Removed 417 outVars from TransFormulas that were not future-live. [2024-11-08 18:40:30,737 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:40:30,776 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:40:30,777 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:40:30,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:40:30 BoogieIcfgContainer [2024-11-08 18:40:30,777 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:40:30,780 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:40:30,780 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:40:30,785 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:40:30,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:40:27" (1/3) ... [2024-11-08 18:40:30,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6a4818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:40:30, skipping insertion in model container [2024-11-08 18:40:30,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:29" (2/3) ... [2024-11-08 18:40:30,787 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6a4818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:40:30, skipping insertion in model container [2024-11-08 18:40:30,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:40:30" (3/3) ... [2024-11-08 18:40:30,789 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product16.cil.c [2024-11-08 18:40:30,812 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:40:30,813 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:40:30,952 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:40:30,962 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@77d0e930, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:40:30,962 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:40:30,976 INFO L276 IsEmpty]: Start isEmpty. Operand has 299 states, 236 states have (on average 1.5338983050847457) internal successors, (362), 240 states have internal predecessors, (362), 45 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-08 18:40:31,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-08 18:40:31,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:31,002 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:31,002 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:31,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:31,007 INFO L85 PathProgramCache]: Analyzing trace with hash 245710345, now seen corresponding path program 1 times [2024-11-08 18:40:31,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:31,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120647270] [2024-11-08 18:40:31,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:31,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:31,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:40:31,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:31,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:40:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:31,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:40:31,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:31,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 18:40:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:31,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 18:40:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:31,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:40:31,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:31,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:40:31,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:31,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 18:40:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:31,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 18:40:31,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:31,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:40:31,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:31,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:40:31,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:31,886 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-08 18:40:31,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:31,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120647270] [2024-11-08 18:40:31,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120647270] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:40:31,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276925971] [2024-11-08 18:40:31,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:31,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:40:31,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:40:31,894 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:40:31,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:40:32,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:32,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 18:40:32,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:32,433 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 18:40:32,437 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:40:32,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276925971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:32,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:40:32,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-08 18:40:32,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846804873] [2024-11-08 18:40:32,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:32,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 18:40:32,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:32,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 18:40:32,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:40:32,500 INFO L87 Difference]: Start difference. First operand has 299 states, 236 states have (on average 1.5338983050847457) internal successors, (362), 240 states have internal predecessors, (362), 45 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:40:32,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:32,607 INFO L93 Difference]: Finished difference Result 444 states and 658 transitions. [2024-11-08 18:40:32,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 18:40:32,610 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 89 [2024-11-08 18:40:32,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:32,657 INFO L225 Difference]: With dead ends: 444 [2024-11-08 18:40:32,658 INFO L226 Difference]: Without dead ends: 292 [2024-11-08 18:40:32,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:40:32,682 INFO L432 NwaCegarLoop]: 448 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, 448 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 [2024-11-08 18:40:32,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:40:32,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-08 18:40:32,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2024-11-08 18:40:32,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 230 states have (on average 1.5260869565217392) internal successors, (351), 233 states have internal predecessors, (351), 45 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-08 18:40:32,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 440 transitions. [2024-11-08 18:40:32,830 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 440 transitions. Word has length 89 [2024-11-08 18:40:32,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:32,833 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 440 transitions. [2024-11-08 18:40:32,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:40:32,834 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 440 transitions. [2024-11-08 18:40:32,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 18:40:32,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:32,841 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:32,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 18:40:33,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-08 18:40:33,043 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:33,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:33,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1788263903, now seen corresponding path program 1 times [2024-11-08 18:40:33,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:33,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586076446] [2024-11-08 18:40:33,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:33,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:33,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:40:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:33,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:40:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:33,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:40:33,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:33,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 18:40:33,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:33,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 18:40:33,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:33,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:40:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:33,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 18:40:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:33,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:40:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:33,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:40:33,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:33,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 18:40:33,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:33,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 18:40:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:33,543 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-08 18:40:33,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:33,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586076446] [2024-11-08 18:40:33,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586076446] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:40:33,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787837484] [2024-11-08 18:40:33,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:33,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:40:33,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:40:33,551 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:40:33,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:40:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:34,003 INFO L255 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:40:34,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:34,058 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 18:40:34,058 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:40:34,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787837484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:34,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:40:34,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-08 18:40:34,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416439903] [2024-11-08 18:40:34,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:34,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:40:34,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:34,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:40:34,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:40:34,063 INFO L87 Difference]: Start difference. First operand 292 states and 440 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:40:34,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:34,114 INFO L93 Difference]: Finished difference Result 434 states and 639 transitions. [2024-11-08 18:40:34,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:40:34,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 90 [2024-11-08 18:40:34,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:34,122 INFO L225 Difference]: With dead ends: 434 [2024-11-08 18:40:34,126 INFO L226 Difference]: Without dead ends: 295 [2024-11-08 18:40:34,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:40:34,129 INFO L432 NwaCegarLoop]: 438 mSDtfsCounter, 1 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 874 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 [2024-11-08 18:40:34,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 874 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:40:34,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2024-11-08 18:40:34,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 294. [2024-11-08 18:40:34,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 232 states have (on average 1.521551724137931) internal successors, (353), 235 states have internal predecessors, (353), 45 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-08 18:40:34,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 442 transitions. [2024-11-08 18:40:34,177 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 442 transitions. Word has length 90 [2024-11-08 18:40:34,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:34,179 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 442 transitions. [2024-11-08 18:40:34,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:40:34,180 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 442 transitions. [2024-11-08 18:40:34,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-08 18:40:34,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:34,188 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:34,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 18:40:34,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:40:34,389 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:34,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:34,389 INFO L85 PathProgramCache]: Analyzing trace with hash 750911176, now seen corresponding path program 1 times [2024-11-08 18:40:34,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:34,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946918173] [2024-11-08 18:40:34,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:34,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:34,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:40:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:34,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:40:34,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:34,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:40:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:34,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 18:40:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:34,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 18:40:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:34,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:40:34,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:34,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 18:40:34,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:34,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:40:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:34,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:40:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:34,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:40:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:34,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 18:40:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:34,791 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 18:40:34,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:34,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946918173] [2024-11-08 18:40:34,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946918173] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:40:34,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935042708] [2024-11-08 18:40:34,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:34,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:40:34,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:40:34,798 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:40:34,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:40:35,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:35,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 932 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:40:35,220 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:35,260 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 18:40:35,260 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:40:35,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935042708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:35,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:40:35,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-08 18:40:35,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940489299] [2024-11-08 18:40:35,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:35,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:40:35,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:35,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:40:35,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:40:35,269 INFO L87 Difference]: Start difference. First operand 294 states and 442 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:40:35,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:35,335 INFO L93 Difference]: Finished difference Result 618 states and 943 transitions. [2024-11-08 18:40:35,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:40:35,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2024-11-08 18:40:35,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:35,343 INFO L225 Difference]: With dead ends: 618 [2024-11-08 18:40:35,343 INFO L226 Difference]: Without dead ends: 351 [2024-11-08 18:40:35,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:40:35,349 INFO L432 NwaCegarLoop]: 454 mSDtfsCounter, 107 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:35,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 847 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:40:35,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-08 18:40:35,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 343. [2024-11-08 18:40:35,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 270 states have (on average 1.537037037037037) internal successors, (415), 273 states have internal predecessors, (415), 56 states have call successors, (56), 16 states have call predecessors, (56), 16 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-08 18:40:35,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 526 transitions. [2024-11-08 18:40:35,410 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 526 transitions. Word has length 96 [2024-11-08 18:40:35,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:35,411 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 526 transitions. [2024-11-08 18:40:35,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:40:35,412 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 526 transitions. [2024-11-08 18:40:35,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 18:40:35,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:35,416 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:35,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 18:40:35,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:40:35,623 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:35,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:35,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1286919024, now seen corresponding path program 1 times [2024-11-08 18:40:35,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:35,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464637609] [2024-11-08 18:40:35,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:35,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:35,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:40:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:35,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:40:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:35,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:40:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:35,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 18:40:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:35,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 18:40:35,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:35,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:40:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:35,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 18:40:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:35,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 18:40:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:35,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 18:40:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:35,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 18:40:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:35,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 18:40:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:35,959 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 18:40:35,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:35,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464637609] [2024-11-08 18:40:35,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464637609] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:40:35,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146567206] [2024-11-08 18:40:35,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:35,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:40:35,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:40:35,965 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:40:35,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 18:40:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:36,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 937 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 18:40:36,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:36,384 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 18:40:36,385 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:40:36,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146567206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:36,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:40:36,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-08 18:40:36,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334322524] [2024-11-08 18:40:36,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:36,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:40:36,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:36,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:40:36,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:40:36,388 INFO L87 Difference]: Start difference. First operand 343 states and 526 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 18:40:36,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:36,469 INFO L93 Difference]: Finished difference Result 677 states and 1042 transitions. [2024-11-08 18:40:36,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:40:36,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 97 [2024-11-08 18:40:36,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:36,473 INFO L225 Difference]: With dead ends: 677 [2024-11-08 18:40:36,473 INFO L226 Difference]: Without dead ends: 345 [2024-11-08 18:40:36,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:40:36,476 INFO L432 NwaCegarLoop]: 432 mSDtfsCounter, 2 mSDsluCounter, 1285 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:36,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1717 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:40:36,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-08 18:40:36,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2024-11-08 18:40:36,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 271 states have (on average 1.5350553505535056) internal successors, (416), 275 states have internal predecessors, (416), 56 states have call successors, (56), 16 states have call predecessors, (56), 17 states have return successors, (57), 55 states have call predecessors, (57), 55 states have call successors, (57) [2024-11-08 18:40:36,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 529 transitions. [2024-11-08 18:40:36,525 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 529 transitions. Word has length 97 [2024-11-08 18:40:36,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:36,526 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 529 transitions. [2024-11-08 18:40:36,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 18:40:36,527 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 529 transitions. [2024-11-08 18:40:36,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 18:40:36,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:36,529 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:36,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 18:40:36,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:40:36,731 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:36,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:36,731 INFO L85 PathProgramCache]: Analyzing trace with hash 167225951, now seen corresponding path program 1 times [2024-11-08 18:40:36,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:36,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600729771] [2024-11-08 18:40:36,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:36,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:36,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:36,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:40:36,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:36,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:40:36,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:36,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:40:36,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:37,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:40:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:37,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 18:40:37,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:37,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 18:40:37,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:37,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:40:37,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:37,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 18:40:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:37,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 18:40:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:37,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:40:37,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:37,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 18:40:37,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:37,091 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 18:40:37,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:37,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600729771] [2024-11-08 18:40:37,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600729771] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:40:37,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168922183] [2024-11-08 18:40:37,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:37,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:40:37,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:40:37,095 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:40:37,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:40:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:37,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 938 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:40:37,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:37,510 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 18:40:37,511 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:40:37,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168922183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:37,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:40:37,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-08 18:40:37,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289782983] [2024-11-08 18:40:37,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:37,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:40:37,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:37,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:40:37,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:40:37,516 INFO L87 Difference]: Start difference. First operand 345 states and 529 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 18:40:37,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:37,608 INFO L93 Difference]: Finished difference Result 679 states and 1047 transitions. [2024-11-08 18:40:37,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:40:37,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 98 [2024-11-08 18:40:37,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:37,612 INFO L225 Difference]: With dead ends: 679 [2024-11-08 18:40:37,612 INFO L226 Difference]: Without dead ends: 347 [2024-11-08 18:40:37,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:40:37,615 INFO L432 NwaCegarLoop]: 430 mSDtfsCounter, 2 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1703 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:37,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1703 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:40:37,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-11-08 18:40:37,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2024-11-08 18:40:37,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 272 states have (on average 1.5330882352941178) internal successors, (417), 277 states have internal predecessors, (417), 56 states have call successors, (56), 16 states have call predecessors, (56), 18 states have return successors, (62), 55 states have call predecessors, (62), 55 states have call successors, (62) [2024-11-08 18:40:37,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 535 transitions. [2024-11-08 18:40:37,639 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 535 transitions. Word has length 98 [2024-11-08 18:40:37,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:37,639 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 535 transitions. [2024-11-08 18:40:37,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 18:40:37,639 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 535 transitions. [2024-11-08 18:40:37,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 18:40:37,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:37,642 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:37,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 18:40:37,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:40:37,846 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:37,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:37,848 INFO L85 PathProgramCache]: Analyzing trace with hash 204993275, now seen corresponding path program 1 times [2024-11-08 18:40:37,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:37,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404455795] [2024-11-08 18:40:37,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:37,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:38,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:40:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:38,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:40:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:38,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:40:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:38,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:40:38,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:38,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:40:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:38,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:40:38,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:38,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 18:40:38,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:38,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:40:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:38,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:40:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:38,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:40:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:38,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 18:40:38,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:38,262 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 18:40:38,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:38,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404455795] [2024-11-08 18:40:38,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404455795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:38,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:38,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:40:38,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551672864] [2024-11-08 18:40:38,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:38,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:40:38,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:38,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:40:38,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:40:38,266 INFO L87 Difference]: Start difference. First operand 347 states and 535 transitions. Second operand has 9 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 18:40:41,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:41,305 INFO L93 Difference]: Finished difference Result 819 states and 1261 transitions. [2024-11-08 18:40:41,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:40:41,306 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 99 [2024-11-08 18:40:41,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:41,311 INFO L225 Difference]: With dead ends: 819 [2024-11-08 18:40:41,311 INFO L226 Difference]: Without dead ends: 495 [2024-11-08 18:40:41,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:40:41,314 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 914 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 2300 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 2570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 2300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:41,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [915 Valid, 1108 Invalid, 2570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 2300 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-08 18:40:41,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-11-08 18:40:41,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 347. [2024-11-08 18:40:41,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 272 states have (on average 1.5330882352941178) internal successors, (417), 277 states have internal predecessors, (417), 56 states have call successors, (56), 16 states have call predecessors, (56), 18 states have return successors, (61), 55 states have call predecessors, (61), 55 states have call successors, (61) [2024-11-08 18:40:41,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 534 transitions. [2024-11-08 18:40:41,365 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 534 transitions. Word has length 99 [2024-11-08 18:40:41,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:41,365 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 534 transitions. [2024-11-08 18:40:41,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 18:40:41,366 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 534 transitions. [2024-11-08 18:40:41,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 18:40:41,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:41,369 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:41,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:40:41,369 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:41,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:41,370 INFO L85 PathProgramCache]: Analyzing trace with hash -787311064, now seen corresponding path program 2 times [2024-11-08 18:40:41,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:41,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766047495] [2024-11-08 18:40:41,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:41,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:41,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:40:41,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:41,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:40:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:41,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:40:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:41,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:40:41,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:41,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:40:41,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:41,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 18:40:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:41,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-08 18:40:41,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:41,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 18:40:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:41,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 18:40:41,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:41,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 18:40:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:41,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 18:40:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:41,664 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 18:40:41,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:41,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766047495] [2024-11-08 18:40:41,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766047495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:41,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:41,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:40:41,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142329233] [2024-11-08 18:40:41,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:41,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:40:41,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:41,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:40:41,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:40:41,668 INFO L87 Difference]: Start difference. First operand 347 states and 534 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 18:40:44,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:44,580 INFO L93 Difference]: Finished difference Result 821 states and 1264 transitions. [2024-11-08 18:40:44,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:40:44,581 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 100 [2024-11-08 18:40:44,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:44,586 INFO L225 Difference]: With dead ends: 821 [2024-11-08 18:40:44,586 INFO L226 Difference]: Without dead ends: 497 [2024-11-08 18:40:44,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:40:44,589 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 910 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 2311 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 2582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 2311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:44,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [911 Valid, 1108 Invalid, 2582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 2311 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 18:40:44,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-11-08 18:40:44,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 349. [2024-11-08 18:40:44,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 273 states have (on average 1.531135531135531) internal successors, (418), 279 states have internal predecessors, (418), 56 states have call successors, (56), 16 states have call predecessors, (56), 19 states have return successors, (63), 55 states have call predecessors, (63), 55 states have call successors, (63) [2024-11-08 18:40:44,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 537 transitions. [2024-11-08 18:40:44,637 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 537 transitions. Word has length 100 [2024-11-08 18:40:44,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:44,637 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 537 transitions. [2024-11-08 18:40:44,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 18:40:44,637 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 537 transitions. [2024-11-08 18:40:44,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-08 18:40:44,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:44,640 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:44,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:40:44,640 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:44,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:44,641 INFO L85 PathProgramCache]: Analyzing trace with hash 743026848, now seen corresponding path program 1 times [2024-11-08 18:40:44,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:44,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502343749] [2024-11-08 18:40:44,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:44,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:44,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:44,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:40:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:44,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:40:44,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:44,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:40:44,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:44,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:40:44,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:44,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:40:44,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:44,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:40:44,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:45,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:40:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:45,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 18:40:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:45,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 18:40:45,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:45,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 18:40:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:45,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 18:40:45,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:45,034 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 18:40:45,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:45,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502343749] [2024-11-08 18:40:45,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502343749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:45,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:45,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 18:40:45,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523265820] [2024-11-08 18:40:45,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:45,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:40:45,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:45,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:40:45,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:40:45,037 INFO L87 Difference]: Start difference. First operand 349 states and 537 transitions. Second operand has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-08 18:40:48,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:48,595 INFO L93 Difference]: Finished difference Result 819 states and 1259 transitions. [2024-11-08 18:40:48,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:40:48,596 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 101 [2024-11-08 18:40:48,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:48,600 INFO L225 Difference]: With dead ends: 819 [2024-11-08 18:40:48,600 INFO L226 Difference]: Without dead ends: 497 [2024-11-08 18:40:48,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-08 18:40:48,603 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 914 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3812 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 4088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 3812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:48,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [915 Valid, 1535 Invalid, 4088 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [276 Valid, 3812 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-08 18:40:48,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-11-08 18:40:48,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 349. [2024-11-08 18:40:48,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 273 states have (on average 1.531135531135531) internal successors, (418), 279 states have internal predecessors, (418), 56 states have call successors, (56), 16 states have call predecessors, (56), 19 states have return successors, (62), 55 states have call predecessors, (62), 55 states have call successors, (62) [2024-11-08 18:40:48,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 536 transitions. [2024-11-08 18:40:48,646 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 536 transitions. Word has length 101 [2024-11-08 18:40:48,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:48,646 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 536 transitions. [2024-11-08 18:40:48,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-08 18:40:48,647 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 536 transitions. [2024-11-08 18:40:48,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 18:40:48,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:48,650 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:48,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:40:48,650 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:48,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:48,651 INFO L85 PathProgramCache]: Analyzing trace with hash -721188630, now seen corresponding path program 2 times [2024-11-08 18:40:48,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:48,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788971037] [2024-11-08 18:40:48,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:48,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:48,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:48,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:40:48,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:48,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:40:48,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:48,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:40:48,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:48,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:40:48,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:48,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:40:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:48,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:40:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:48,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 18:40:48,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:48,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:40:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:48,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:40:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:48,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 18:40:48,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:48,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 18:40:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:48,967 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 18:40:48,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:48,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788971037] [2024-11-08 18:40:48,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788971037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:48,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:48,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 18:40:48,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338792677] [2024-11-08 18:40:48,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:48,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:40:48,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:48,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:40:48,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:40:48,971 INFO L87 Difference]: Start difference. First operand 349 states and 536 transitions. Second operand has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-08 18:40:52,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:52,696 INFO L93 Difference]: Finished difference Result 821 states and 1265 transitions. [2024-11-08 18:40:52,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:40:52,697 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 102 [2024-11-08 18:40:52,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:52,702 INFO L225 Difference]: With dead ends: 821 [2024-11-08 18:40:52,702 INFO L226 Difference]: Without dead ends: 499 [2024-11-08 18:40:52,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-08 18:40:52,707 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 910 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3847 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 4121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 3847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:52,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [911 Valid, 1536 Invalid, 4121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 3847 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-08 18:40:52,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-11-08 18:40:52,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 351. [2024-11-08 18:40:52,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 274 states have (on average 1.5291970802919708) internal successors, (419), 281 states have internal predecessors, (419), 56 states have call successors, (56), 16 states have call predecessors, (56), 20 states have return successors, (67), 55 states have call predecessors, (67), 55 states have call successors, (67) [2024-11-08 18:40:52,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 542 transitions. [2024-11-08 18:40:52,812 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 542 transitions. Word has length 102 [2024-11-08 18:40:52,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:52,813 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 542 transitions. [2024-11-08 18:40:52,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-08 18:40:52,814 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 542 transitions. [2024-11-08 18:40:52,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 18:40:52,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:52,817 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:52,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:40:52,818 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:52,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:52,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1760446043, now seen corresponding path program 1 times [2024-11-08 18:40:52,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:52,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936208910] [2024-11-08 18:40:52,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:52,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:52,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:52,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:40:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:52,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:40:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:52,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:40:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:53,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:40:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:53,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:40:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:53,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:40:53,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:53,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 18:40:53,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:53,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:40:53,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:53,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 18:40:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:53,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 18:40:53,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:53,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 18:40:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:53,058 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 18:40:53,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:53,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936208910] [2024-11-08 18:40:53,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936208910] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:40:53,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198316518] [2024-11-08 18:40:53,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:53,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:40:53,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:40:53,062 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:40:53,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 18:40:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:53,456 INFO L255 TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:40:53,460 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:53,503 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 18:40:53,506 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:40:53,635 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 18:40:53,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198316518] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:40:53,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:40:53,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2024-11-08 18:40:53,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496386726] [2024-11-08 18:40:53,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:40:53,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:40:53,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:53,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:40:53,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:40:53,643 INFO L87 Difference]: Start difference. First operand 351 states and 542 transitions. Second operand has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 7 states have internal predecessors, (96), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 18:40:56,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:56,420 INFO L93 Difference]: Finished difference Result 990 states and 1593 transitions. [2024-11-08 18:40:56,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 18:40:56,421 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 7 states have internal predecessors, (96), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 103 [2024-11-08 18:40:56,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:56,429 INFO L225 Difference]: With dead ends: 990 [2024-11-08 18:40:56,429 INFO L226 Difference]: Without dead ends: 851 [2024-11-08 18:40:56,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:40:56,433 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 1325 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 1933 mSolverCounterSat, 423 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 2356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 423 IncrementalHoareTripleChecker+Valid, 1933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:56,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 1293 Invalid, 2356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [423 Valid, 1933 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-08 18:40:56,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2024-11-08 18:40:56,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 679. [2024-11-08 18:40:56,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 538 states have (on average 1.5929368029739777) internal successors, (857), 545 states have internal predecessors, (857), 120 states have call successors, (120), 16 states have call predecessors, (120), 20 states have return successors, (141), 119 states have call predecessors, (141), 119 states have call successors, (141) [2024-11-08 18:40:56,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 1118 transitions. [2024-11-08 18:40:56,496 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 1118 transitions. Word has length 103 [2024-11-08 18:40:56,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:56,496 INFO L471 AbstractCegarLoop]: Abstraction has 679 states and 1118 transitions. [2024-11-08 18:40:56,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 7 states have internal predecessors, (96), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 18:40:56,497 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 1118 transitions. [2024-11-08 18:40:56,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 18:40:56,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:56,502 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:56,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 18:40:56,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba07c01-3948-4db0-9532-ff51d00ad3aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 18:40:56,703 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:56,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:56,704 INFO L85 PathProgramCache]: Analyzing trace with hash -2139338142, now seen corresponding path program 1 times [2024-11-08 18:40:56,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:56,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242397005] [2024-11-08 18:40:56,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:56,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:56,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:40:56,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:56,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:40:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:56,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:40:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:56,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:40:56,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:56,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:40:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:56,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:40:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:56,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 18:40:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:56,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 18:40:56,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:56,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:40:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:56,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 18:40:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:56,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:40:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:56,885 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 18:40:56,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:56,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242397005] [2024-11-08 18:40:56,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242397005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:56,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:56,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:40:56,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515201191] [2024-11-08 18:40:56,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:56,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:40:56,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:56,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:40:56,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:40:56,888 INFO L87 Difference]: Start difference. First operand 679 states and 1118 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:40:59,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:59,086 INFO L93 Difference]: Finished difference Result 1771 states and 2964 transitions. [2024-11-08 18:40:59,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:40:59,087 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2024-11-08 18:40:59,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:59,096 INFO L225 Difference]: With dead ends: 1771 [2024-11-08 18:40:59,096 INFO L226 Difference]: Without dead ends: 1160 [2024-11-08 18:40:59,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:40:59,101 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 1014 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:59,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1029 Valid, 860 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 1347 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 18:40:59,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2024-11-08 18:40:59,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1004. [2024-11-08 18:40:59,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 799 states have (on average 1.6045056320400501) internal successors, (1282), 806 states have internal predecessors, (1282), 184 states have call successors, (184), 16 states have call predecessors, (184), 20 states have return successors, (215), 183 states have call predecessors, (215), 183 states have call successors, (215) [2024-11-08 18:40:59,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1681 transitions. [2024-11-08 18:40:59,180 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1681 transitions. Word has length 109 [2024-11-08 18:40:59,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:59,180 INFO L471 AbstractCegarLoop]: Abstraction has 1004 states and 1681 transitions. [2024-11-08 18:40:59,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:40:59,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1681 transitions. [2024-11-08 18:40:59,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 18:40:59,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:59,187 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:59,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:40:59,188 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:59,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:59,188 INFO L85 PathProgramCache]: Analyzing trace with hash -419005101, now seen corresponding path program 1 times [2024-11-08 18:40:59,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:59,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436205902] [2024-11-08 18:40:59,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:59,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:59,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:40:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:59,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:40:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:59,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:40:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:59,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:40:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:59,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:40:59,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:59,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:40:59,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:59,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:40:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:59,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 18:40:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:59,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 18:40:59,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:59,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 18:40:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:59,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-08 18:40:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:59,343 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 18:40:59,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:59,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436205902] [2024-11-08 18:40:59,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436205902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:59,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:59,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:40:59,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116063371] [2024-11-08 18:40:59,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:59,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:40:59,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:59,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:40:59,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:40:59,347 INFO L87 Difference]: Start difference. First operand 1004 states and 1681 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:41:01,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:01,527 INFO L93 Difference]: Finished difference Result 2551 states and 4313 transitions. [2024-11-08 18:41:01,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:41:01,529 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2024-11-08 18:41:01,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:01,545 INFO L225 Difference]: With dead ends: 2551 [2024-11-08 18:41:01,546 INFO L226 Difference]: Without dead ends: 1668 [2024-11-08 18:41:01,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:41:01,551 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1012 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 1651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:01,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1027 Valid, 812 Invalid, 1651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 1321 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 18:41:01,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2024-11-08 18:41:01,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1512. [2024-11-08 18:41:01,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1212 states have (on average 1.6113861386138615) internal successors, (1953), 1219 states have internal predecessors, (1953), 279 states have call successors, (279), 16 states have call predecessors, (279), 20 states have return successors, (310), 278 states have call predecessors, (310), 278 states have call successors, (310) [2024-11-08 18:41:01,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2542 transitions. [2024-11-08 18:41:01,668 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2542 transitions. Word has length 110 [2024-11-08 18:41:01,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:01,669 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2542 transitions. [2024-11-08 18:41:01,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:41:01,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2542 transitions. [2024-11-08 18:41:01,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 18:41:01,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:01,678 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:41:01,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 18:41:01,679 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:01,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:01,679 INFO L85 PathProgramCache]: Analyzing trace with hash 779163748, now seen corresponding path program 1 times [2024-11-08 18:41:01,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:01,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143330813] [2024-11-08 18:41:01,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:01,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:01,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:01,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:41:01,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:01,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:41:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:01,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:41:01,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:01,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:41:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:01,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:41:01,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:01,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:41:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:01,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 18:41:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:01,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:41:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:01,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:41:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:01,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 18:41:01,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:01,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 18:41:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:01,835 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 18:41:01,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:01,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143330813] [2024-11-08 18:41:01,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143330813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:01,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:01,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:41:01,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847789444] [2024-11-08 18:41:01,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:01,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:41:01,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:01,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:41:01,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:41:01,839 INFO L87 Difference]: Start difference. First operand 1512 states and 2542 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:41:03,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:03,992 INFO L93 Difference]: Finished difference Result 3703 states and 6322 transitions. [2024-11-08 18:41:03,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:41:03,993 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-11-08 18:41:03,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:04,010 INFO L225 Difference]: With dead ends: 3703 [2024-11-08 18:41:04,011 INFO L226 Difference]: Without dead ends: 2437 [2024-11-08 18:41:04,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:41:04,019 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1010 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 1638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:04,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 811 Invalid, 1638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 18:41:04,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2437 states. [2024-11-08 18:41:04,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2437 to 2281. [2024-11-08 18:41:04,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2281 states, 1858 states have (on average 1.6167922497308935) internal successors, (3004), 1865 states have internal predecessors, (3004), 402 states have call successors, (402), 16 states have call predecessors, (402), 20 states have return successors, (449), 401 states have call predecessors, (449), 401 states have call successors, (449) [2024-11-08 18:41:04,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 3855 transitions. [2024-11-08 18:41:04,169 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 3855 transitions. Word has length 111 [2024-11-08 18:41:04,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:04,170 INFO L471 AbstractCegarLoop]: Abstraction has 2281 states and 3855 transitions. [2024-11-08 18:41:04,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:41:04,171 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 3855 transitions. [2024-11-08 18:41:04,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 18:41:04,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:04,181 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:41:04,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 18:41:04,182 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:04,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:04,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1442190572, now seen corresponding path program 1 times [2024-11-08 18:41:04,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:04,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529613552] [2024-11-08 18:41:04,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:04,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:04,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:41:04,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:04,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:41:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:04,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:41:04,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:04,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:41:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:04,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:41:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:04,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:41:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:04,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 18:41:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:04,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 18:41:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:04,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:41:04,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:04,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 18:41:04,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:04,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 18:41:04,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:04,341 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 18:41:04,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:04,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529613552] [2024-11-08 18:41:04,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529613552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:04,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:04,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:41:04,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385560352] [2024-11-08 18:41:04,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:04,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:41:04,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:04,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:41:04,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:41:04,343 INFO L87 Difference]: Start difference. First operand 2281 states and 3855 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:41:06,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:06,343 INFO L93 Difference]: Finished difference Result 5497 states and 9456 transitions. [2024-11-08 18:41:06,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:41:06,344 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 112 [2024-11-08 18:41:06,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:06,369 INFO L225 Difference]: With dead ends: 5497 [2024-11-08 18:41:06,369 INFO L226 Difference]: Without dead ends: 3666 [2024-11-08 18:41:06,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:41:06,380 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1008 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1322 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 1644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 1322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:06,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1023 Valid, 811 Invalid, 1644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 1322 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 18:41:06,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3666 states. [2024-11-08 18:41:06,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3666 to 3510. [2024-11-08 18:41:06,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3510 states, 2908 states have (on average 1.6200137551581844) internal successors, (4711), 2915 states have internal predecessors, (4711), 581 states have call successors, (581), 16 states have call predecessors, (581), 20 states have return successors, (654), 580 states have call predecessors, (654), 580 states have call successors, (654) [2024-11-08 18:41:06,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3510 states to 3510 states and 5946 transitions. [2024-11-08 18:41:06,618 INFO L78 Accepts]: Start accepts. Automaton has 3510 states and 5946 transitions. Word has length 112 [2024-11-08 18:41:06,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:06,619 INFO L471 AbstractCegarLoop]: Abstraction has 3510 states and 5946 transitions. [2024-11-08 18:41:06,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:41:06,619 INFO L276 IsEmpty]: Start isEmpty. Operand 3510 states and 5946 transitions. [2024-11-08 18:41:06,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 18:41:06,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:06,632 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:41:06,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 18:41:06,633 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:06,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:06,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1646093952, now seen corresponding path program 1 times [2024-11-08 18:41:06,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:06,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732657166] [2024-11-08 18:41:06,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:06,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:06,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:41:06,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:06,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:41:06,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:06,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:41:06,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:06,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:41:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:06,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:41:06,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:06,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:41:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:06,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:41:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:06,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 18:41:06,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:06,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 18:41:06,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:06,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 18:41:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:06,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 18:41:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:06,835 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 18:41:06,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:06,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732657166] [2024-11-08 18:41:06,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732657166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:06,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:06,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:41:06,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448927946] [2024-11-08 18:41:06,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:06,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:41:06,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:06,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:41:06,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:41:06,838 INFO L87 Difference]: Start difference. First operand 3510 states and 5946 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:41:08,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:08,930 INFO L93 Difference]: Finished difference Result 8445 states and 14603 transitions. [2024-11-08 18:41:08,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:41:08,931 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 113 [2024-11-08 18:41:08,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:08,975 INFO L225 Difference]: With dead ends: 8445 [2024-11-08 18:41:08,976 INFO L226 Difference]: Without dead ends: 5697 [2024-11-08 18:41:08,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:41:08,992 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 1006 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 1664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:08,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1021 Valid, 830 Invalid, 1664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 18:41:09,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5697 states. [2024-11-08 18:41:09,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5697 to 5541. [2024-11-08 18:41:09,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5541 states, 4563 states have (on average 1.613631382862152) internal successors, (7363), 4570 states have internal predecessors, (7363), 957 states have call successors, (957), 16 states have call predecessors, (957), 20 states have return successors, (1074), 956 states have call predecessors, (1074), 956 states have call successors, (1074) [2024-11-08 18:41:09,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5541 states to 5541 states and 9394 transitions. [2024-11-08 18:41:09,393 INFO L78 Accepts]: Start accepts. Automaton has 5541 states and 9394 transitions. Word has length 113 [2024-11-08 18:41:09,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:09,393 INFO L471 AbstractCegarLoop]: Abstraction has 5541 states and 9394 transitions. [2024-11-08 18:41:09,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:41:09,394 INFO L276 IsEmpty]: Start isEmpty. Operand 5541 states and 9394 transitions. [2024-11-08 18:41:09,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-08 18:41:09,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:09,408 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:41:09,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:41:09,409 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:09,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:09,409 INFO L85 PathProgramCache]: Analyzing trace with hash -604377864, now seen corresponding path program 1 times [2024-11-08 18:41:09,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:09,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276903072] [2024-11-08 18:41:09,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:09,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:09,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:09,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:41:09,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:09,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:41:09,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:09,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:41:09,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:09,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:41:09,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:09,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:41:09,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:09,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:41:09,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:09,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 18:41:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:09,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:41:09,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:09,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 18:41:09,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:09,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 18:41:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:09,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 18:41:09,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:09,573 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 18:41:09,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:09,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276903072] [2024-11-08 18:41:09,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276903072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:09,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:09,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:41:09,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091662974] [2024-11-08 18:41:09,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:09,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:41:09,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:09,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:41:09,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:41:09,576 INFO L87 Difference]: Start difference. First operand 5541 states and 9394 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:41:11,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:11,544 INFO L93 Difference]: Finished difference Result 13782 states and 23824 transitions. [2024-11-08 18:41:11,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:41:11,544 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 114 [2024-11-08 18:41:11,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:11,606 INFO L225 Difference]: With dead ends: 13782 [2024-11-08 18:41:11,606 INFO L226 Difference]: Without dead ends: 9380 [2024-11-08 18:41:11,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:41:11,628 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 1004 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:11,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1019 Valid, 818 Invalid, 1647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 1316 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 18:41:11,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9380 states. [2024-11-08 18:41:12,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9380 to 9224. [2024-11-08 18:41:12,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9224 states, 7640 states have (on average 1.6111256544502617) internal successors, (12309), 7647 states have internal predecessors, (12309), 1563 states have call successors, (1563), 16 states have call predecessors, (1563), 20 states have return successors, (1758), 1562 states have call predecessors, (1758), 1562 states have call successors, (1758) [2024-11-08 18:41:12,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9224 states to 9224 states and 15630 transitions. [2024-11-08 18:41:12,231 INFO L78 Accepts]: Start accepts. Automaton has 9224 states and 15630 transitions. Word has length 114 [2024-11-08 18:41:12,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:12,231 INFO L471 AbstractCegarLoop]: Abstraction has 9224 states and 15630 transitions. [2024-11-08 18:41:12,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:41:12,232 INFO L276 IsEmpty]: Start isEmpty. Operand 9224 states and 15630 transitions. [2024-11-08 18:41:12,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-08 18:41:12,250 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:12,251 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:41:12,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 18:41:12,251 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:12,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:12,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1523583538, now seen corresponding path program 1 times [2024-11-08 18:41:12,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:12,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348646820] [2024-11-08 18:41:12,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:12,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:12,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:12,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:41:12,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:12,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:41:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:12,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:41:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:12,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:41:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:12,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:41:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:12,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:41:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:12,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 18:41:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:12,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 18:41:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:12,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 18:41:12,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:12,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 18:41:12,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:12,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 18:41:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:12,392 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 18:41:12,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:12,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348646820] [2024-11-08 18:41:12,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348646820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:12,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:12,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:41:12,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485398171] [2024-11-08 18:41:12,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:12,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:41:12,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:12,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:41:12,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:41:12,395 INFO L87 Difference]: Start difference. First operand 9224 states and 15630 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:41:14,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:14,888 INFO L93 Difference]: Finished difference Result 23966 states and 41370 transitions. [2024-11-08 18:41:14,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:41:14,889 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 115 [2024-11-08 18:41:14,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:14,975 INFO L225 Difference]: With dead ends: 23966 [2024-11-08 18:41:14,975 INFO L226 Difference]: Without dead ends: 16333 [2024-11-08 18:41:15,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:41:15,008 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 1002 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 1370 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 1696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 1370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:15,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1017 Valid, 884 Invalid, 1696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [326 Valid, 1370 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 18:41:15,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16333 states. [2024-11-08 18:41:15,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16333 to 16177. [2024-11-08 18:41:15,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16177 states, 13390 states have (on average 1.6020164301717699) internal successors, (21451), 13397 states have internal predecessors, (21451), 2766 states have call successors, (2766), 16 states have call predecessors, (2766), 20 states have return successors, (3105), 2765 states have call predecessors, (3105), 2765 states have call successors, (3105) [2024-11-08 18:41:15,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16177 states to 16177 states and 27322 transitions. [2024-11-08 18:41:15,907 INFO L78 Accepts]: Start accepts. Automaton has 16177 states and 27322 transitions. Word has length 115 [2024-11-08 18:41:15,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:15,908 INFO L471 AbstractCegarLoop]: Abstraction has 16177 states and 27322 transitions. [2024-11-08 18:41:15,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:41:15,908 INFO L276 IsEmpty]: Start isEmpty. Operand 16177 states and 27322 transitions. [2024-11-08 18:41:15,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-08 18:41:15,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:15,939 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:41:15,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 18:41:15,940 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:15,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:15,940 INFO L85 PathProgramCache]: Analyzing trace with hash -2034496551, now seen corresponding path program 1 times [2024-11-08 18:41:15,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:15,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263431320] [2024-11-08 18:41:15,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:15,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:16,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:41:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:16,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:41:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:16,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:41:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:16,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:41:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:16,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:41:16,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:16,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:41:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:16,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:41:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:16,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 18:41:16,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:16,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 18:41:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:16,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:41:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:16,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 18:41:16,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:16,105 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 18:41:16,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:16,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263431320] [2024-11-08 18:41:16,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263431320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:16,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:16,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:41:16,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365630353] [2024-11-08 18:41:16,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:16,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:41:16,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:16,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:41:16,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:41:16,110 INFO L87 Difference]: Start difference. First operand 16177 states and 27322 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:41:18,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:18,894 INFO L93 Difference]: Finished difference Result 42932 states and 73969 transitions. [2024-11-08 18:41:18,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:41:18,895 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 116 [2024-11-08 18:41:18,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:19,090 INFO L225 Difference]: With dead ends: 42932 [2024-11-08 18:41:19,091 INFO L226 Difference]: Without dead ends: 28988 [2024-11-08 18:41:19,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:41:19,157 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1000 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 1651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:19,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1015 Valid, 812 Invalid, 1651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 1321 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 18:41:19,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28988 states. [2024-11-08 18:41:20,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28988 to 28832. [2024-11-08 18:41:20,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28832 states, 24006 states have (on average 1.597725568607848) internal successors, (38355), 24013 states have internal predecessors, (38355), 4805 states have call successors, (4805), 16 states have call predecessors, (4805), 20 states have return successors, (5418), 4804 states have call predecessors, (5418), 4804 states have call successors, (5418) [2024-11-08 18:41:20,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28832 states to 28832 states and 48578 transitions. [2024-11-08 18:41:20,861 INFO L78 Accepts]: Start accepts. Automaton has 28832 states and 48578 transitions. Word has length 116 [2024-11-08 18:41:20,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:20,862 INFO L471 AbstractCegarLoop]: Abstraction has 28832 states and 48578 transitions. [2024-11-08 18:41:20,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:41:20,863 INFO L276 IsEmpty]: Start isEmpty. Operand 28832 states and 48578 transitions. [2024-11-08 18:41:20,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-08 18:41:20,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:20,894 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:41:20,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 18:41:20,894 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:20,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:20,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1285343088, now seen corresponding path program 1 times [2024-11-08 18:41:20,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:20,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445757230] [2024-11-08 18:41:20,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:20,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:20,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:20,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:41:20,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:20,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:41:21,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:21,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:41:21,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:21,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:41:21,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:21,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:41:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:21,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:41:21,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:21,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 18:41:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:21,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 18:41:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:21,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 18:41:21,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:21,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-08 18:41:21,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:21,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 18:41:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:21,060 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 18:41:21,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:21,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445757230] [2024-11-08 18:41:21,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445757230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:21,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:21,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:41:21,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907420379] [2024-11-08 18:41:21,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:21,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:41:21,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:21,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:41:21,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:41:21,064 INFO L87 Difference]: Start difference. First operand 28832 states and 48578 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:41:25,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:25,100 INFO L93 Difference]: Finished difference Result 78694 states and 134728 transitions. [2024-11-08 18:41:25,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:41:25,101 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 117 [2024-11-08 18:41:25,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:25,411 INFO L225 Difference]: With dead ends: 78694 [2024-11-08 18:41:25,411 INFO L226 Difference]: Without dead ends: 52867 [2024-11-08 18:41:25,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:41:25,493 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 998 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:25,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1013 Valid, 854 Invalid, 1662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 18:41:25,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52867 states. [2024-11-08 18:41:28,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52867 to 52711. [2024-11-08 18:41:28,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52711 states, 44170 states have (on average 1.5921213493321258) internal successors, (70324), 44177 states have internal predecessors, (70324), 8520 states have call successors, (8520), 16 states have call predecessors, (8520), 20 states have return successors, (9665), 8519 states have call predecessors, (9665), 8519 states have call successors, (9665) [2024-11-08 18:41:28,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52711 states to 52711 states and 88509 transitions. [2024-11-08 18:41:28,990 INFO L78 Accepts]: Start accepts. Automaton has 52711 states and 88509 transitions. Word has length 117 [2024-11-08 18:41:28,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:28,991 INFO L471 AbstractCegarLoop]: Abstraction has 52711 states and 88509 transitions. [2024-11-08 18:41:28,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:41:28,991 INFO L276 IsEmpty]: Start isEmpty. Operand 52711 states and 88509 transitions. [2024-11-08 18:41:29,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-08 18:41:29,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:29,022 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:41:29,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 18:41:29,022 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:29,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:29,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1260232985, now seen corresponding path program 1 times [2024-11-08 18:41:29,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:29,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094500607] [2024-11-08 18:41:29,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:29,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:29,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:29,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:41:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:29,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:41:29,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:29,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:41:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:29,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:41:29,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:29,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:41:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:29,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:41:29,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:29,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 18:41:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:29,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:41:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:29,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 18:41:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:29,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 18:41:29,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:29,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 18:41:29,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:29,179 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 18:41:29,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:29,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094500607] [2024-11-08 18:41:29,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094500607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:29,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:29,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:41:29,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570027042] [2024-11-08 18:41:29,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:29,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:41:29,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:29,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:41:29,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:41:29,185 INFO L87 Difference]: Start difference. First operand 52711 states and 88509 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:41:33,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:33,320 INFO L93 Difference]: Finished difference Result 98465 states and 168915 transitions. [2024-11-08 18:41:33,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:41:33,321 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 118 [2024-11-08 18:41:33,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:33,785 INFO L225 Difference]: With dead ends: 98465 [2024-11-08 18:41:33,785 INFO L226 Difference]: Without dead ends: 98326 [2024-11-08 18:41:33,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:41:33,831 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 993 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:33,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1007 Valid, 852 Invalid, 1660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 18:41:33,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98326 states. [2024-11-08 18:41:37,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98326 to 98170. [2024-11-08 18:41:37,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98170 states, 82830 states have (on average 1.5851020161777134) internal successors, (131294), 82837 states have internal predecessors, (131294), 15319 states have call successors, (15319), 16 states have call predecessors, (15319), 20 states have return successors, (17510), 15318 states have call predecessors, (17510), 15318 states have call successors, (17510) [2024-11-08 18:41:38,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98170 states to 98170 states and 164123 transitions. [2024-11-08 18:41:38,336 INFO L78 Accepts]: Start accepts. Automaton has 98170 states and 164123 transitions. Word has length 118 [2024-11-08 18:41:38,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:38,337 INFO L471 AbstractCegarLoop]: Abstraction has 98170 states and 164123 transitions. [2024-11-08 18:41:38,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:41:38,338 INFO L276 IsEmpty]: Start isEmpty. Operand 98170 states and 164123 transitions. [2024-11-08 18:41:38,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 18:41:38,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:38,379 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:41:38,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 18:41:38,380 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:38,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:38,381 INFO L85 PathProgramCache]: Analyzing trace with hash 810918191, now seen corresponding path program 1 times [2024-11-08 18:41:38,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:38,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448267419] [2024-11-08 18:41:38,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:38,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:38,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:39,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:41:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:39,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:41:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:39,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:41:39,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:39,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:41:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:39,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:41:39,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:39,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:41:39,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:39,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:41:39,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:39,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 18:41:39,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:39,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 18:41:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:39,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 18:41:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:39,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:41:39,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:39,518 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 18:41:39,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:39,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448267419] [2024-11-08 18:41:39,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448267419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:39,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:39,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-08 18:41:39,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769780717] [2024-11-08 18:41:39,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:39,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 18:41:39,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:39,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 18:41:39,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2024-11-08 18:41:39,522 INFO L87 Difference]: Start difference. First operand 98170 states and 164123 transitions. Second operand has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 10 states have internal predecessors, (82), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-08 18:41:51,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:51,244 INFO L93 Difference]: Finished difference Result 196073 states and 339717 transitions. [2024-11-08 18:41:51,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-08 18:41:51,249 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 10 states have internal predecessors, (82), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 119 [2024-11-08 18:41:51,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:52,216 INFO L225 Difference]: With dead ends: 196073 [2024-11-08 18:41:52,217 INFO L226 Difference]: Without dead ends: 195940 [2024-11-08 18:41:52,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 957 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=715, Invalid=2825, Unknown=0, NotChecked=0, Total=3540 [2024-11-08 18:41:52,305 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 3709 mSDsluCounter, 2395 mSDsCounter, 0 mSdLazyCounter, 6100 mSolverCounterSat, 1158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3709 SdHoareTripleChecker+Valid, 2629 SdHoareTripleChecker+Invalid, 7258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1158 IncrementalHoareTripleChecker+Valid, 6100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:52,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3709 Valid, 2629 Invalid, 7258 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1158 Valid, 6100 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-08 18:41:52,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195940 states. [2024-11-08 18:42:00,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195940 to 195512. [2024-11-08 18:42:00,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195512 states, 165032 states have (on average 1.5858984924135926) internal successors, (261724), 164935 states have internal predecessors, (261724), 30430 states have call successors, (30430), 41 states have call predecessors, (30430), 49 states have return successors, (38087), 30541 states have call predecessors, (38087), 30427 states have call successors, (38087) [2024-11-08 18:42:01,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195512 states to 195512 states and 330241 transitions. [2024-11-08 18:42:01,448 INFO L78 Accepts]: Start accepts. Automaton has 195512 states and 330241 transitions. Word has length 119 [2024-11-08 18:42:01,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:01,448 INFO L471 AbstractCegarLoop]: Abstraction has 195512 states and 330241 transitions. [2024-11-08 18:42:01,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 10 states have internal predecessors, (82), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-08 18:42:01,448 INFO L276 IsEmpty]: Start isEmpty. Operand 195512 states and 330241 transitions. [2024-11-08 18:42:01,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-08 18:42:01,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:01,502 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:01,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 18:42:01,503 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:01,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:01,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1972999234, now seen corresponding path program 1 times [2024-11-08 18:42:01,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:01,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344873894] [2024-11-08 18:42:01,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:01,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:01,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:42:01,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:01,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:42:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:01,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:42:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:01,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:42:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:01,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:42:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:01,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:42:01,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:01,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:42:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:01,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 18:42:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:01,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 18:42:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:01,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 18:42:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:01,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-08 18:42:01,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:01,822 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 18:42:01,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:01,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344873894] [2024-11-08 18:42:01,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344873894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:01,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:01,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 18:42:01,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081142450] [2024-11-08 18:42:01,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:01,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:42:01,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:01,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:42:01,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:42:01,825 INFO L87 Difference]: Start difference. First operand 195512 states and 330241 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 6 states have internal predecessors, (83), 4 states have call successors, (13), 7 states have call predecessors, (13), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-08 18:42:10,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:10,501 INFO L93 Difference]: Finished difference Result 196940 states and 338828 transitions. [2024-11-08 18:42:10,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 18:42:10,502 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 6 states have internal predecessors, (83), 4 states have call successors, (13), 7 states have call predecessors, (13), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 120 [2024-11-08 18:42:10,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted.