./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec3_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec3_product34.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 34d763a2f472f3a687bfbf36d5640fefeb493025c54d66615a1e88fff5fbc163 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 15:03:49,500 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 15:03:49,554 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 15:03:49,559 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 15:03:49,560 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 15:03:49,581 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 15:03:49,582 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 15:03:49,582 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 15:03:49,583 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 15:03:49,586 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 15:03:49,586 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 15:03:49,586 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 15:03:49,586 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 15:03:49,587 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 15:03:49,588 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 15:03:49,588 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 15:03:49,588 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 15:03:49,589 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 15:03:49,589 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 15:03:49,589 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 15:03:49,589 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 15:03:49,590 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 15:03:49,590 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 15:03:49,591 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 15:03:49,592 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 15:03:49,592 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 15:03:49,592 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 15:03:49,592 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 15:03:49,592 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 15:03:49,593 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 15:03:49,593 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 15:03:49,593 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 15:03:49,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:03:49,594 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 15:03:49,594 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 15:03:49,595 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 15:03:49,595 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 15:03:49,595 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 15:03:49,595 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 15:03:49,595 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 15:03:49,596 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 15:03:49,596 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 15:03:49,596 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34d763a2f472f3a687bfbf36d5640fefeb493025c54d66615a1e88fff5fbc163 [2024-11-08 15:03:49,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 15:03:49,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 15:03:49,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 15:03:49,831 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 15:03:49,831 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 15:03:49,832 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec3_product34.cil.c [2024-11-08 15:03:50,994 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 15:03:51,228 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 15:03:51,229 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product34.cil.c [2024-11-08 15:03:51,252 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6eb989b39/e5d0b94b1bac4dcfa2797504350e5479/FLAG9f1ae442f [2024-11-08 15:03:51,571 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6eb989b39/e5d0b94b1bac4dcfa2797504350e5479 [2024-11-08 15:03:51,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 15:03:51,573 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 15:03:51,574 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 15:03:51,575 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 15:03:51,579 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 15:03:51,580 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:03:51" (1/1) ... [2024-11-08 15:03:51,580 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d8ace24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:03:51, skipping insertion in model container [2024-11-08 15:03:51,580 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:03:51" (1/1) ... [2024-11-08 15:03:51,634 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 15:03:52,013 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product34.cil.c[43803,43816] [2024-11-08 15:03:52,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:03:52,066 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 15:03:52,075 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [48] [2024-11-08 15:03:52,076 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [125] [2024-11-08 15:03:52,077 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [444] [2024-11-08 15:03:52,077 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1512] [2024-11-08 15:03:52,077 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1926] [2024-11-08 15:03:52,077 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1961] [2024-11-08 15:03:52,077 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2098] [2024-11-08 15:03:52,078 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2107] [2024-11-08 15:03:52,078 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2124] [2024-11-08 15:03:52,078 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2343] [2024-11-08 15:03:52,079 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2740] [2024-11-08 15:03:52,134 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product34.cil.c[43803,43816] [2024-11-08 15:03:52,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:03:52,195 INFO L204 MainTranslator]: Completed translation [2024-11-08 15:03:52,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:03:52 WrapperNode [2024-11-08 15:03:52,196 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 15:03:52,196 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 15:03:52,197 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 15:03:52,197 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 15:03:52,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:03:52" (1/1) ... [2024-11-08 15:03:52,224 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:03:52" (1/1) ... [2024-11-08 15:03:52,276 INFO L138 Inliner]: procedures = 135, calls = 226, calls flagged for inlining = 62, calls inlined = 59, statements flattened = 1135 [2024-11-08 15:03:52,276 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 15:03:52,277 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 15:03:52,277 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 15:03:52,277 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 15:03:52,286 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:03:52" (1/1) ... [2024-11-08 15:03:52,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:03:52" (1/1) ... [2024-11-08 15:03:52,291 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:03:52" (1/1) ... [2024-11-08 15:03:52,310 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 15:03:52,311 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:03:52" (1/1) ... [2024-11-08 15:03:52,311 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:03:52" (1/1) ... [2024-11-08 15:03:52,343 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:03:52" (1/1) ... [2024-11-08 15:03:52,349 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:03:52" (1/1) ... [2024-11-08 15:03:52,356 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:03:52" (1/1) ... [2024-11-08 15:03:52,364 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:03:52" (1/1) ... [2024-11-08 15:03:52,373 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 15:03:52,373 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 15:03:52,374 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 15:03:52,374 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 15:03:52,377 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:03:52" (1/1) ... [2024-11-08 15:03:52,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:03:52,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:03:52,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 15:03:52,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 15:03:52,473 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-08 15:03:52,474 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-08 15:03:52,474 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-08 15:03:52,474 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-08 15:03:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-08 15:03:52,475 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-08 15:03:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-08 15:03:52,476 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-08 15:03:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-08 15:03:52,476 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-08 15:03:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-08 15:03:52,476 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-08 15:03:52,479 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-08 15:03:52,480 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-08 15:03:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-08 15:03:52,480 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-08 15:03:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-08 15:03:52,480 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-08 15:03:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-08 15:03:52,480 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-08 15:03:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-08 15:03:52,480 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-08 15:03:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-08 15:03:52,480 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-08 15:03:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-08 15:03:52,481 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-08 15:03:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-08 15:03:52,481 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-08 15:03:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 15:03:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-08 15:03:52,481 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-08 15:03:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-08 15:03:52,481 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-08 15:03:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-08 15:03:52,481 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-08 15:03:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-08 15:03:52,481 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-08 15:03:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-08 15:03:52,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-08 15:03:52,482 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-08 15:03:52,482 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-08 15:03:52,482 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-08 15:03:52,482 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-08 15:03:52,482 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2024-11-08 15:03:52,482 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2024-11-08 15:03:52,482 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-08 15:03:52,482 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-08 15:03:52,482 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-08 15:03:52,482 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-08 15:03:52,482 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-08 15:03:52,482 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-08 15:03:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-08 15:03:52,483 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-08 15:03:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-08 15:03:52,483 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-08 15:03:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 15:03:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 15:03:52,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 15:03:52,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 15:03:52,501 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-08 15:03:52,502 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-08 15:03:52,502 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-08 15:03:52,502 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-08 15:03:52,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 15:03:52,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 15:03:52,682 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 15:03:52,684 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 15:03:53,544 INFO L? ?]: Removed 590 outVars from TransFormulas that were not future-live. [2024-11-08 15:03:53,544 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 15:03:53,568 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 15:03:53,569 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 15:03:53,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:03:53 BoogieIcfgContainer [2024-11-08 15:03:53,571 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 15:03:53,572 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 15:03:53,572 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 15:03:53,575 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 15:03:53,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 03:03:51" (1/3) ... [2024-11-08 15:03:53,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4391278c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:03:53, skipping insertion in model container [2024-11-08 15:03:53,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:03:52" (2/3) ... [2024-11-08 15:03:53,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4391278c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:03:53, skipping insertion in model container [2024-11-08 15:03:53,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:03:53" (3/3) ... [2024-11-08 15:03:53,578 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product34.cil.c [2024-11-08 15:03:53,590 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 15:03:53,590 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 15:03:53,652 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 15:03:53,658 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;@52cd8db3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 15:03:53,659 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 15:03:53,665 INFO L276 IsEmpty]: Start isEmpty. Operand has 458 states, 351 states have (on average 1.5327635327635327) internal successors, (538), 358 states have internal predecessors, (538), 76 states have call successors, (76), 29 states have call predecessors, (76), 29 states have return successors, (76), 74 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-08 15:03:53,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-08 15:03:53,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:03:53,690 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:03:53,690 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:03:53,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:03:53,694 INFO L85 PathProgramCache]: Analyzing trace with hash 379837730, now seen corresponding path program 1 times [2024-11-08 15:03:53,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:03:53,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081804006] [2024-11-08 15:03:53,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:03:53,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:03:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:54,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:03:54,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:54,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:03:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:54,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:03:54,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:54,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:03:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:54,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:03:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:54,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 15:03:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:54,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 15:03:54,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:54,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 15:03:54,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:54,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 15:03:54,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:54,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 15:03:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:54,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 15:03:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:54,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 15:03:54,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:54,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 15:03:54,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:54,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 15:03:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:54,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 15:03:54,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:54,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 15:03:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:54,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 15:03:54,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:54,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-08 15:03:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:54,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 15:03:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:54,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 15:03:54,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:54,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 15:03:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:54,374 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-08 15:03:54,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:03:54,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081804006] [2024-11-08 15:03:54,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081804006] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:03:54,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334668198] [2024-11-08 15:03:54,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:03:54,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:03:54,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:03:54,378 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:03:54,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 15:03:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:54,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 1321 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 15:03:54,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:03:54,717 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-08 15:03:54,718 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:03:54,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334668198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:03:54,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:03:54,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-08 15:03:54,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048647287] [2024-11-08 15:03:54,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:03:54,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 15:03:54,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:03:54,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 15:03:54,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:03:54,749 INFO L87 Difference]: Start difference. First operand has 458 states, 351 states have (on average 1.5327635327635327) internal successors, (538), 358 states have internal predecessors, (538), 76 states have call successors, (76), 29 states have call predecessors, (76), 29 states have return successors, (76), 74 states have call predecessors, (76), 76 states have call successors, (76) Second operand has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-08 15:03:54,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:03:54,792 INFO L93 Difference]: Finished difference Result 722 states and 1070 transitions. [2024-11-08 15:03:54,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 15:03:54,794 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 158 [2024-11-08 15:03:54,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:03:54,805 INFO L225 Difference]: With dead ends: 722 [2024-11-08 15:03:54,805 INFO L226 Difference]: Without dead ends: 450 [2024-11-08 15:03:54,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 196 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 15:03:54,814 INFO L432 NwaCegarLoop]: 684 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, 684 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 15:03:54,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:03:54,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-08 15:03:54,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2024-11-08 15:03:54,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 345 states have (on average 1.527536231884058) internal successors, (527), 350 states have internal predecessors, (527), 76 states have call successors, (76), 29 states have call predecessors, (76), 28 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-08 15:03:54,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 676 transitions. [2024-11-08 15:03:54,891 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 676 transitions. Word has length 158 [2024-11-08 15:03:54,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:03:54,893 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 676 transitions. [2024-11-08 15:03:54,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-08 15:03:54,893 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 676 transitions. [2024-11-08 15:03:54,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-08 15:03:54,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:03:54,903 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:03:54,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 15:03:55,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-08 15:03:55,105 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:03:55,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:03:55,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1402145748, now seen corresponding path program 1 times [2024-11-08 15:03:55,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:03:55,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063783442] [2024-11-08 15:03:55,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:03:55,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:03:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:55,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:03:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:55,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:03:55,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:55,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:03:55,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:55,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:03:55,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:55,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:03:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:55,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 15:03:55,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:55,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 15:03:55,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:55,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 15:03:55,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:55,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:03:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:55,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 15:03:55,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:55,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 15:03:55,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:55,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 15:03:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:55,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 15:03:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:55,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 15:03:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:55,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 15:03:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:55,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 15:03:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:55,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 15:03:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:55,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-08 15:03:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:55,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-08 15:03:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:55,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-08 15:03:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:55,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-08 15:03:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:55,384 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-08 15:03:55,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:03:55,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063783442] [2024-11-08 15:03:55,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063783442] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:03:55,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761838560] [2024-11-08 15:03:55,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:03:55,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:03:55,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:03:55,386 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:03:55,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 15:03:55,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:55,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 1322 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 15:03:55,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:03:55,683 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-08 15:03:55,683 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:03:55,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761838560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:03:55,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:03:55,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-08 15:03:55,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768489240] [2024-11-08 15:03:55,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:03:55,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:03:55,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:03:55,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:03:55,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:03:55,688 INFO L87 Difference]: Start difference. First operand 450 states and 676 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-08 15:03:55,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:03:55,724 INFO L93 Difference]: Finished difference Result 711 states and 1044 transitions. [2024-11-08 15:03:55,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:03:55,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 159 [2024-11-08 15:03:55,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:03:55,734 INFO L225 Difference]: With dead ends: 711 [2024-11-08 15:03:55,734 INFO L226 Difference]: Without dead ends: 453 [2024-11-08 15:03:55,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:03:55,737 INFO L432 NwaCegarLoop]: 674 mSDtfsCounter, 1 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1346 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 15:03:55,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1346 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:03:55,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2024-11-08 15:03:55,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 452. [2024-11-08 15:03:55,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 347 states have (on average 1.5244956772334295) internal successors, (529), 352 states have internal predecessors, (529), 76 states have call successors, (76), 29 states have call predecessors, (76), 28 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-08 15:03:55,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 678 transitions. [2024-11-08 15:03:55,776 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 678 transitions. Word has length 159 [2024-11-08 15:03:55,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:03:55,777 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 678 transitions. [2024-11-08 15:03:55,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-08 15:03:55,777 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 678 transitions. [2024-11-08 15:03:55,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-08 15:03:55,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:03:55,780 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:03:55,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 15:03:55,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-08 15:03:55,981 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:03:55,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:03:55,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1344644182, now seen corresponding path program 1 times [2024-11-08 15:03:55,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:03:55,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567201127] [2024-11-08 15:03:55,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:03:55,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:03:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:03:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:03:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:03:56,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:03:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:03:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 15:03:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 15:03:56,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 15:03:56,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 15:03:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 15:03:56,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 15:03:56,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 15:03:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-08 15:03:56,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 15:03:56,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 15:03:56,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 15:03:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-08 15:03:56,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 15:03:56,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,180 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-08 15:03:56,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:03:56,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567201127] [2024-11-08 15:03:56,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567201127] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:03:56,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126845547] [2024-11-08 15:03:56,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:03:56,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:03:56,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:03:56,182 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:03:56,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 15:03:56,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,429 INFO L255 TraceCheckSpWp]: Trace formula consists of 1256 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 15:03:56,435 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:03:56,452 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-08 15:03:56,452 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:03:56,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126845547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:03:56,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:03:56,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-08 15:03:56,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294864970] [2024-11-08 15:03:56,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:03:56,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:03:56,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:03:56,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:03:56,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:03:56,454 INFO L87 Difference]: Start difference. First operand 452 states and 678 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 15:03:56,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:03:56,486 INFO L93 Difference]: Finished difference Result 952 states and 1448 transitions. [2024-11-08 15:03:56,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:03:56,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 146 [2024-11-08 15:03:56,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:03:56,489 INFO L225 Difference]: With dead ends: 952 [2024-11-08 15:03:56,489 INFO L226 Difference]: Without dead ends: 527 [2024-11-08 15:03:56,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:03:56,491 INFO L432 NwaCegarLoop]: 682 mSDtfsCounter, 134 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1311 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 15:03:56,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1311 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:03:56,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-11-08 15:03:56,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 519. [2024-11-08 15:03:56,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 400 states have (on average 1.545) internal successors, (618), 405 states have internal predecessors, (618), 90 states have call successors, (90), 29 states have call predecessors, (90), 28 states have return successors, (87), 86 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-08 15:03:56,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 795 transitions. [2024-11-08 15:03:56,506 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 795 transitions. Word has length 146 [2024-11-08 15:03:56,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:03:56,507 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 795 transitions. [2024-11-08 15:03:56,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 15:03:56,507 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 795 transitions. [2024-11-08 15:03:56,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-08 15:03:56,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:03:56,509 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:03:56,523 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 15:03:56,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:03:56,714 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:03:56,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:03:56,714 INFO L85 PathProgramCache]: Analyzing trace with hash 303383336, now seen corresponding path program 1 times [2024-11-08 15:03:56,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:03:56,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380563342] [2024-11-08 15:03:56,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:03:56,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:03:56,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:03:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:03:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:03:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:03:56,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:03:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 15:03:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 15:03:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 15:03:56,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 15:03:56,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 15:03:56,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:03:56,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 15:03:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 15:03:56,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 15:03:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 15:03:56,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 15:03:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 15:03:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 15:03:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:56,884 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-08 15:03:56,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:03:56,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380563342] [2024-11-08 15:03:56,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380563342] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:03:56,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771985298] [2024-11-08 15:03:56,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:03:56,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:03:56,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:03:56,886 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:03:56,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 15:03:57,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:57,134 INFO L255 TraceCheckSpWp]: Trace formula consists of 1261 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 15:03:57,137 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:03:57,185 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 15:03:57,186 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:03:57,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771985298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:03:57,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:03:57,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-08 15:03:57,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316237973] [2024-11-08 15:03:57,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:03:57,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:03:57,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:03:57,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:03:57,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:03:57,188 INFO L87 Difference]: Start difference. First operand 519 states and 795 transitions. Second operand has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 15:03:57,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:03:57,244 INFO L93 Difference]: Finished difference Result 1029 states and 1580 transitions. [2024-11-08 15:03:57,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:03:57,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 147 [2024-11-08 15:03:57,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:03:57,247 INFO L225 Difference]: With dead ends: 1029 [2024-11-08 15:03:57,248 INFO L226 Difference]: Without dead ends: 521 [2024-11-08 15:03:57,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 176 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 15:03:57,250 INFO L432 NwaCegarLoop]: 668 mSDtfsCounter, 2 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2661 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 15:03:57,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2661 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:03:57,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-08 15:03:57,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2024-11-08 15:03:57,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 401 states have (on average 1.5436408977556109) internal successors, (619), 407 states have internal predecessors, (619), 90 states have call successors, (90), 29 states have call predecessors, (90), 29 states have return successors, (89), 86 states have call predecessors, (89), 87 states have call successors, (89) [2024-11-08 15:03:57,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 798 transitions. [2024-11-08 15:03:57,272 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 798 transitions. Word has length 147 [2024-11-08 15:03:57,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:03:57,272 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 798 transitions. [2024-11-08 15:03:57,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 15:03:57,273 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 798 transitions. [2024-11-08 15:03:57,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-08 15:03:57,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:03:57,275 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:03:57,290 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 15:03:57,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:03:57,476 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:03:57,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:03:57,476 INFO L85 PathProgramCache]: Analyzing trace with hash -612397421, now seen corresponding path program 1 times [2024-11-08 15:03:57,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:03:57,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064952646] [2024-11-08 15:03:57,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:03:57,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:03:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:57,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:03:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:57,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:03:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:57,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:03:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:57,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:03:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:57,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 15:03:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:57,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 15:03:57,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:57,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 15:03:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:57,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 15:03:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:57,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 15:03:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:57,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 15:03:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:57,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 15:03:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:57,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 15:03:57,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:57,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 15:03:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:57,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 15:03:57,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:57,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-08 15:03:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:57,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-08 15:03:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:57,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 15:03:57,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:57,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-08 15:03:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:57,701 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-08 15:03:57,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:03:57,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064952646] [2024-11-08 15:03:57,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064952646] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:03:57,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254834204] [2024-11-08 15:03:57,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:03:57,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:03:57,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:03:57,708 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:03:57,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 15:03:57,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:57,961 INFO L255 TraceCheckSpWp]: Trace formula consists of 1262 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 15:03:57,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:03:58,004 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 15:03:58,005 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:03:58,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254834204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:03:58,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:03:58,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-08 15:03:58,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952456715] [2024-11-08 15:03:58,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:03:58,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:03:58,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:03:58,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:03:58,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-08 15:03:58,007 INFO L87 Difference]: Start difference. First operand 521 states and 798 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 15:03:58,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:03:58,056 INFO L93 Difference]: Finished difference Result 1031 states and 1585 transitions. [2024-11-08 15:03:58,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:03:58,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 148 [2024-11-08 15:03:58,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:03:58,059 INFO L225 Difference]: With dead ends: 1031 [2024-11-08 15:03:58,059 INFO L226 Difference]: Without dead ends: 523 [2024-11-08 15:03:58,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 176 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 15:03:58,062 INFO L432 NwaCegarLoop]: 666 mSDtfsCounter, 2 mSDsluCounter, 1981 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2647 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:03:58,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2647 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:03:58,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-11-08 15:03:58,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2024-11-08 15:03:58,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 402 states have (on average 1.5422885572139304) internal successors, (620), 409 states have internal predecessors, (620), 90 states have call successors, (90), 29 states have call predecessors, (90), 30 states have return successors, (94), 86 states have call predecessors, (94), 87 states have call successors, (94) [2024-11-08 15:03:58,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 804 transitions. [2024-11-08 15:03:58,081 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 804 transitions. Word has length 148 [2024-11-08 15:03:58,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:03:58,082 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 804 transitions. [2024-11-08 15:03:58,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 15:03:58,082 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 804 transitions. [2024-11-08 15:03:58,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-08 15:03:58,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:03:58,084 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:03:58,099 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 15:03:58,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:03:58,285 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:03:58,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:03:58,286 INFO L85 PathProgramCache]: Analyzing trace with hash -342668476, now seen corresponding path program 1 times [2024-11-08 15:03:58,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:03:58,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856069054] [2024-11-08 15:03:58,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:03:58,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:03:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:58,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:03:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:58,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:03:58,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:58,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:03:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:58,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:03:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:58,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:03:58,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:58,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 15:03:58,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:58,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 15:03:58,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:58,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:03:58,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:58,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 15:03:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:58,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 15:03:58,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:58,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 15:03:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:58,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 15:03:58,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:58,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 15:03:58,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:58,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 15:03:58,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:58,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-08 15:03:58,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:58,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-08 15:03:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:58,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 15:03:58,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:58,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 15:03:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:03:58,463 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-08 15:03:58,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:03:58,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856069054] [2024-11-08 15:03:58,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856069054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:03:58,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:03:58,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 15:03:58,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847403718] [2024-11-08 15:03:58,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:03:58,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 15:03:58,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:03:58,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 15:03:58,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:03:58,465 INFO L87 Difference]: Start difference. First operand 523 states and 804 transitions. Second operand has 9 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 15:04:00,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:04:00,782 INFO L93 Difference]: Finished difference Result 1235 states and 1916 transitions. [2024-11-08 15:04:00,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 15:04:00,783 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 149 [2024-11-08 15:04:00,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:04:00,788 INFO L225 Difference]: With dead ends: 1235 [2024-11-08 15:04:00,788 INFO L226 Difference]: Without dead ends: 735 [2024-11-08 15:04:00,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-08 15:04:00,790 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 1522 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 3541 mSolverCounterSat, 534 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1339 SdHoareTripleChecker+Invalid, 4075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 534 IncrementalHoareTripleChecker+Valid, 3541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:04:00,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1339 Invalid, 4075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [534 Valid, 3541 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-08 15:04:00,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2024-11-08 15:04:00,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 523. [2024-11-08 15:04:00,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 402 states have (on average 1.5422885572139304) internal successors, (620), 409 states have internal predecessors, (620), 90 states have call successors, (90), 29 states have call predecessors, (90), 30 states have return successors, (93), 86 states have call predecessors, (93), 87 states have call successors, (93) [2024-11-08 15:04:00,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 803 transitions. [2024-11-08 15:04:00,832 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 803 transitions. Word has length 149 [2024-11-08 15:04:00,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:04:00,833 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 803 transitions. [2024-11-08 15:04:00,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 15:04:00,834 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 803 transitions. [2024-11-08 15:04:00,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-08 15:04:00,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:04:00,836 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:04:00,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 15:04:00,836 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:04:00,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:04:00,837 INFO L85 PathProgramCache]: Analyzing trace with hash 534730317, now seen corresponding path program 2 times [2024-11-08 15:04:00,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:04:00,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723775121] [2024-11-08 15:04:00,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:00,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:04:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:00,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:04:00,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:00,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:04:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:00,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:04:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:00,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:04:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:00,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:04:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:00,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 15:04:00,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:00,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-08 15:04:00,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:01,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 15:04:01,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:01,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 15:04:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:01,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 15:04:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:01,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 15:04:01,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:01,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 15:04:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:01,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 15:04:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:01,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-08 15:04:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:01,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-08 15:04:01,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:01,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 15:04:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:01,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-08 15:04:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:01,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-08 15:04:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:01,020 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-08 15:04:01,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:04:01,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723775121] [2024-11-08 15:04:01,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723775121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:04:01,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:04:01,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 15:04:01,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454158985] [2024-11-08 15:04:01,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:04:01,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 15:04:01,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:04:01,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 15:04:01,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:04:01,022 INFO L87 Difference]: Start difference. First operand 523 states and 803 transitions. Second operand has 9 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 15:04:03,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:04:03,247 INFO L93 Difference]: Finished difference Result 1237 states and 1919 transitions. [2024-11-08 15:04:03,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 15:04:03,248 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 150 [2024-11-08 15:04:03,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:04:03,253 INFO L225 Difference]: With dead ends: 1237 [2024-11-08 15:04:03,253 INFO L226 Difference]: Without dead ends: 737 [2024-11-08 15:04:03,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-08 15:04:03,255 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 1518 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 3557 mSolverCounterSat, 525 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 4082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 525 IncrementalHoareTripleChecker+Valid, 3557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:04:03,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1337 Invalid, 4082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [525 Valid, 3557 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 15:04:03,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2024-11-08 15:04:03,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 525. [2024-11-08 15:04:03,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 403 states have (on average 1.5409429280397022) internal successors, (621), 411 states have internal predecessors, (621), 90 states have call successors, (90), 29 states have call predecessors, (90), 31 states have return successors, (95), 86 states have call predecessors, (95), 87 states have call successors, (95) [2024-11-08 15:04:03,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 806 transitions. [2024-11-08 15:04:03,285 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 806 transitions. Word has length 150 [2024-11-08 15:04:03,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:04:03,286 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 806 transitions. [2024-11-08 15:04:03,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 15:04:03,286 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 806 transitions. [2024-11-08 15:04:03,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 15:04:03,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:04:03,300 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:04:03,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 15:04:03,300 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:04:03,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:04:03,301 INFO L85 PathProgramCache]: Analyzing trace with hash 344168745, now seen corresponding path program 1 times [2024-11-08 15:04:03,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:04:03,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313521408] [2024-11-08 15:04:03,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:03,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:04:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:03,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:04:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:03,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:04:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:03,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:04:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:03,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:04:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:03,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:04:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:03,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:04:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:03,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 15:04:03,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:03,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 15:04:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:03,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 15:04:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:03,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:04:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:03,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 15:04:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:03,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 15:04:03,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:03,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 15:04:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:03,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 15:04:03,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:03,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 15:04:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:03,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 15:04:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:03,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-08 15:04:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:03,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-08 15:04:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:03,483 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-08 15:04:03,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:04:03,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313521408] [2024-11-08 15:04:03,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313521408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:04:03,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:04:03,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 15:04:03,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074850092] [2024-11-08 15:04:03,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:04:03,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 15:04:03,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:04:03,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 15:04:03,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:04:03,485 INFO L87 Difference]: Start difference. First operand 525 states and 806 transitions. Second operand has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 15:04:06,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:04:06,001 INFO L93 Difference]: Finished difference Result 1235 states and 1914 transitions. [2024-11-08 15:04:06,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 15:04:06,002 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 151 [2024-11-08 15:04:06,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:04:06,005 INFO L225 Difference]: With dead ends: 1235 [2024-11-08 15:04:06,005 INFO L226 Difference]: Without dead ends: 737 [2024-11-08 15:04:06,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-08 15:04:06,007 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 1522 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 5950 mSolverCounterSat, 538 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1856 SdHoareTripleChecker+Invalid, 6488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 538 IncrementalHoareTripleChecker+Valid, 5950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-08 15:04:06,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1856 Invalid, 6488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [538 Valid, 5950 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-08 15:04:06,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2024-11-08 15:04:06,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 525. [2024-11-08 15:04:06,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 403 states have (on average 1.5409429280397022) internal successors, (621), 411 states have internal predecessors, (621), 90 states have call successors, (90), 29 states have call predecessors, (90), 31 states have return successors, (94), 86 states have call predecessors, (94), 87 states have call successors, (94) [2024-11-08 15:04:06,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 805 transitions. [2024-11-08 15:04:06,032 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 805 transitions. Word has length 151 [2024-11-08 15:04:06,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:04:06,033 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 805 transitions. [2024-11-08 15:04:06,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 15:04:06,033 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 805 transitions. [2024-11-08 15:04:06,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-08 15:04:06,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:04:06,035 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:04:06,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 15:04:06,035 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:04:06,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:04:06,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1928505728, now seen corresponding path program 2 times [2024-11-08 15:04:06,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:04:06,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467694494] [2024-11-08 15:04:06,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:06,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:04:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:06,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:04:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:06,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:04:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:06,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:04:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:06,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:04:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:06,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:04:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:06,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:04:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:06,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 15:04:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:06,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 15:04:06,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:06,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 15:04:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:06,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 15:04:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:06,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 15:04:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:06,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 15:04:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:06,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 15:04:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:06,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 15:04:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:06,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 15:04:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:06,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-08 15:04:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:06,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 15:04:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:06,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 15:04:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:06,201 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-08 15:04:06,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:04:06,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467694494] [2024-11-08 15:04:06,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467694494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:04:06,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:04:06,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 15:04:06,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309131565] [2024-11-08 15:04:06,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:04:06,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 15:04:06,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:04:06,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 15:04:06,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:04:06,203 INFO L87 Difference]: Start difference. First operand 525 states and 805 transitions. Second operand has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 15:04:08,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:04:08,633 INFO L93 Difference]: Finished difference Result 1237 states and 1920 transitions. [2024-11-08 15:04:08,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 15:04:08,633 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 152 [2024-11-08 15:04:08,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:04:08,636 INFO L225 Difference]: With dead ends: 1237 [2024-11-08 15:04:08,637 INFO L226 Difference]: Without dead ends: 739 [2024-11-08 15:04:08,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-08 15:04:08,638 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 1515 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 6031 mSolverCounterSat, 520 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1857 SdHoareTripleChecker+Invalid, 6551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 520 IncrementalHoareTripleChecker+Valid, 6031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:04:08,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1857 Invalid, 6551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [520 Valid, 6031 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-08 15:04:08,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2024-11-08 15:04:08,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 527. [2024-11-08 15:04:08,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 404 states have (on average 1.5396039603960396) internal successors, (622), 413 states have internal predecessors, (622), 90 states have call successors, (90), 29 states have call predecessors, (90), 32 states have return successors, (99), 86 states have call predecessors, (99), 87 states have call successors, (99) [2024-11-08 15:04:08,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 811 transitions. [2024-11-08 15:04:08,665 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 811 transitions. Word has length 152 [2024-11-08 15:04:08,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:04:08,665 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 811 transitions. [2024-11-08 15:04:08,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 15:04:08,665 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 811 transitions. [2024-11-08 15:04:08,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-08 15:04:08,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:04:08,667 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:04:08,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 15:04:08,668 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:04:08,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:04:08,668 INFO L85 PathProgramCache]: Analyzing trace with hash -905066005, now seen corresponding path program 1 times [2024-11-08 15:04:08,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:04:08,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456993499] [2024-11-08 15:04:08,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:08,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:04:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:08,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:04:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:08,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:04:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:08,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:04:08,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:08,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:04:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:08,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:04:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:08,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:04:08,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:08,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 15:04:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:08,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 15:04:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:08,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 15:04:08,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:08,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 15:04:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:08,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 15:04:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:08,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 15:04:08,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:08,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 15:04:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:08,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 15:04:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:08,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-08 15:04:08,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:08,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-08 15:04:08,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:08,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-08 15:04:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:08,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-08 15:04:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:08,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 15:04:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:08,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-08 15:04:08,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:08,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-08 15:04:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:08,790 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-08 15:04:08,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:04:08,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456993499] [2024-11-08 15:04:08,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456993499] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:04:08,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048318211] [2024-11-08 15:04:08,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:08,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:04:08,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:04:08,794 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:04:08,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 15:04:09,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:09,067 INFO L255 TraceCheckSpWp]: Trace formula consists of 1345 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 15:04:09,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:04:09,092 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-08 15:04:09,092 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:04:09,199 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-08 15:04:09,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048318211] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:04:09,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:04:09,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2024-11-08 15:04:09,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030865727] [2024-11-08 15:04:09,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:04:09,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 15:04:09,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:04:09,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 15:04:09,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:04:09,201 INFO L87 Difference]: Start difference. First operand 527 states and 811 transitions. Second operand has 11 states, 11 states have (on average 13.090909090909092) internal successors, (144), 7 states have internal predecessors, (144), 2 states have call successors, (50), 6 states have call predecessors, (50), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-08 15:04:11,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:04:11,076 INFO L93 Difference]: Finished difference Result 1439 states and 2313 transitions. [2024-11-08 15:04:11,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 15:04:11,077 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.090909090909092) internal successors, (144), 7 states have internal predecessors, (144), 2 states have call successors, (50), 6 states have call predecessors, (50), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 172 [2024-11-08 15:04:11,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:04:11,082 INFO L225 Difference]: With dead ends: 1439 [2024-11-08 15:04:11,082 INFO L226 Difference]: Without dead ends: 1181 [2024-11-08 15:04:11,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-11-08 15:04:11,084 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 1914 mSDsluCounter, 1446 mSDsCounter, 0 mSdLazyCounter, 3741 mSolverCounterSat, 703 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1971 SdHoareTripleChecker+Valid, 1714 SdHoareTripleChecker+Invalid, 4444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 703 IncrementalHoareTripleChecker+Valid, 3741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 15:04:11,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1971 Valid, 1714 Invalid, 4444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [703 Valid, 3741 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 15:04:11,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2024-11-08 15:04:11,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 945. [2024-11-08 15:04:11,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 743 states have (on average 1.6083445491251682) internal successors, (1195), 752 states have internal predecessors, (1195), 169 states have call successors, (169), 29 states have call predecessors, (169), 32 states have return successors, (188), 165 states have call predecessors, (188), 166 states have call successors, (188) [2024-11-08 15:04:11,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1552 transitions. [2024-11-08 15:04:11,135 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1552 transitions. Word has length 172 [2024-11-08 15:04:11,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:04:11,135 INFO L471 AbstractCegarLoop]: Abstraction has 945 states and 1552 transitions. [2024-11-08 15:04:11,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.090909090909092) internal successors, (144), 7 states have internal predecessors, (144), 2 states have call successors, (50), 6 states have call predecessors, (50), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-08 15:04:11,136 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1552 transitions. [2024-11-08 15:04:11,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-08 15:04:11,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:04:11,139 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:04:11,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 15:04:11,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:04:11,340 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:04:11,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:04:11,340 INFO L85 PathProgramCache]: Analyzing trace with hash -576021042, now seen corresponding path program 1 times [2024-11-08 15:04:11,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:04:11,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634809822] [2024-11-08 15:04:11,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:11,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:04:11,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:11,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:04:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:11,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:04:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:11,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:04:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:11,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:04:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:11,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:04:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:11,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:04:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:11,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 15:04:11,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:11,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 15:04:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:11,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:04:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:11,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 15:04:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:11,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 15:04:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:11,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 15:04:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:11,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 15:04:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:11,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-08 15:04:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:11,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-08 15:04:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:11,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-08 15:04:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:11,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-08 15:04:11,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:11,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 15:04:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:11,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-08 15:04:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:11,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-08 15:04:11,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:11,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-08 15:04:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:11,451 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-08 15:04:11,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:04:11,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634809822] [2024-11-08 15:04:11,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634809822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:04:11,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:04:11,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:04:11,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371814413] [2024-11-08 15:04:11,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:04:11,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:04:11,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:04:11,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:04:11,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:04:11,452 INFO L87 Difference]: Start difference. First operand 945 states and 1552 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-08 15:04:12,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:04:12,787 INFO L93 Difference]: Finished difference Result 2457 states and 4114 transitions. [2024-11-08 15:04:12,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:04:12,787 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 178 [2024-11-08 15:04:12,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:04:12,793 INFO L225 Difference]: With dead ends: 2457 [2024-11-08 15:04:12,794 INFO L226 Difference]: Without dead ends: 1580 [2024-11-08 15:04:12,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:04:12,796 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 1650 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 2030 mSolverCounterSat, 613 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1668 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 2643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 613 IncrementalHoareTripleChecker+Valid, 2030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:04:12,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1668 Valid, 1054 Invalid, 2643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [613 Valid, 2030 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 15:04:12,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2024-11-08 15:04:12,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1360. [2024-11-08 15:04:12,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1360 states, 1079 states have (on average 1.6265060240963856) internal successors, (1755), 1088 states have internal predecessors, (1755), 248 states have call successors, (248), 29 states have call predecessors, (248), 32 states have return successors, (277), 244 states have call predecessors, (277), 245 states have call successors, (277) [2024-11-08 15:04:12,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 2280 transitions. [2024-11-08 15:04:12,842 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 2280 transitions. Word has length 178 [2024-11-08 15:04:12,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:04:12,842 INFO L471 AbstractCegarLoop]: Abstraction has 1360 states and 2280 transitions. [2024-11-08 15:04:12,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-08 15:04:12,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 2280 transitions. [2024-11-08 15:04:12,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-08 15:04:12,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:04:12,847 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:04:12,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 15:04:12,847 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:04:12,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:04:12,847 INFO L85 PathProgramCache]: Analyzing trace with hash 2136429257, now seen corresponding path program 1 times [2024-11-08 15:04:12,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:04:12,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968014548] [2024-11-08 15:04:12,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:12,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:04:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:12,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:04:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:12,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:04:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:12,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:04:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:12,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:04:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:12,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:04:12,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:12,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:04:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:12,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 15:04:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:12,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 15:04:12,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:12,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 15:04:12,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:12,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 15:04:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:12,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 15:04:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:12,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 15:04:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:12,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 15:04:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:12,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-08 15:04:12,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:12,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-08 15:04:12,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:12,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-08 15:04:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:12,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-08 15:04:12,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:12,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 15:04:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:12,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-08 15:04:12,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:12,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-08 15:04:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:12,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 15:04:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:12,940 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-08 15:04:12,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:04:12,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968014548] [2024-11-08 15:04:12,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968014548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:04:12,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:04:12,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:04:12,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592705975] [2024-11-08 15:04:12,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:04:12,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:04:12,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:04:12,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:04:12,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:04:12,941 INFO L87 Difference]: Start difference. First operand 1360 states and 2280 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-08 15:04:14,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:04:14,364 INFO L93 Difference]: Finished difference Result 3471 states and 5892 transitions. [2024-11-08 15:04:14,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:04:14,365 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 179 [2024-11-08 15:04:14,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:04:14,374 INFO L225 Difference]: With dead ends: 3471 [2024-11-08 15:04:14,374 INFO L226 Difference]: Without dead ends: 2232 [2024-11-08 15:04:14,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:04:14,377 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 1649 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 1980 mSolverCounterSat, 608 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1668 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 2588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 608 IncrementalHoareTripleChecker+Valid, 1980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:04:14,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1668 Valid, 982 Invalid, 2588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [608 Valid, 1980 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 15:04:14,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2232 states. [2024-11-08 15:04:14,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2232 to 2012. [2024-11-08 15:04:14,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2012 states, 1612 states have (on average 1.6389578163771712) internal successors, (2642), 1621 states have internal predecessors, (2642), 367 states have call successors, (367), 29 states have call predecessors, (367), 32 states have return successors, (396), 363 states have call predecessors, (396), 364 states have call successors, (396) [2024-11-08 15:04:14,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2012 states to 2012 states and 3405 transitions. [2024-11-08 15:04:14,456 INFO L78 Accepts]: Start accepts. Automaton has 2012 states and 3405 transitions. Word has length 179 [2024-11-08 15:04:14,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:04:14,456 INFO L471 AbstractCegarLoop]: Abstraction has 2012 states and 3405 transitions. [2024-11-08 15:04:14,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-08 15:04:14,456 INFO L276 IsEmpty]: Start isEmpty. Operand 2012 states and 3405 transitions. [2024-11-08 15:04:14,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-08 15:04:14,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:04:14,463 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:04:14,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 15:04:14,463 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:04:14,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:04:14,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1487363699, now seen corresponding path program 1 times [2024-11-08 15:04:14,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:04:14,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985566708] [2024-11-08 15:04:14,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:14,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:04:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:14,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:04:14,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:14,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:04:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:14,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:04:14,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:14,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:04:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:14,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:04:14,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:14,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:04:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:14,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 15:04:14,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:14,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 15:04:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:14,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 15:04:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:14,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 15:04:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:14,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 15:04:14,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:14,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 15:04:14,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:14,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-08 15:04:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:14,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-08 15:04:14,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:14,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-08 15:04:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:14,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 15:04:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:14,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-08 15:04:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:14,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-08 15:04:14,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:14,558 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-08 15:04:14,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:04:14,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985566708] [2024-11-08 15:04:14,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985566708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:04:14,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:04:14,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:04:14,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211165936] [2024-11-08 15:04:14,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:04:14,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:04:14,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:04:14,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:04:14,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:04:14,560 INFO L87 Difference]: Start difference. First operand 2012 states and 3405 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 15:04:15,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:04:15,920 INFO L93 Difference]: Finished difference Result 5001 states and 8594 transitions. [2024-11-08 15:04:15,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:04:15,921 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 161 [2024-11-08 15:04:15,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:04:15,933 INFO L225 Difference]: With dead ends: 5001 [2024-11-08 15:04:15,933 INFO L226 Difference]: Without dead ends: 3235 [2024-11-08 15:04:15,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:04:15,937 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 1648 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1945 mSolverCounterSat, 610 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1667 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 2555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 610 IncrementalHoareTripleChecker+Valid, 1945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:04:15,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1667 Valid, 981 Invalid, 2555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [610 Valid, 1945 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 15:04:15,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3235 states. [2024-11-08 15:04:16,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3235 to 3015. [2024-11-08 15:04:16,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3015 states, 2453 states have (on average 1.6485935589074603) internal successors, (4044), 2462 states have internal predecessors, (4044), 529 states have call successors, (529), 29 states have call predecessors, (529), 32 states have return successors, (574), 525 states have call predecessors, (574), 526 states have call successors, (574) [2024-11-08 15:04:16,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3015 states to 3015 states and 5147 transitions. [2024-11-08 15:04:16,025 INFO L78 Accepts]: Start accepts. Automaton has 3015 states and 5147 transitions. Word has length 161 [2024-11-08 15:04:16,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:04:16,025 INFO L471 AbstractCegarLoop]: Abstraction has 3015 states and 5147 transitions. [2024-11-08 15:04:16,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 15:04:16,025 INFO L276 IsEmpty]: Start isEmpty. Operand 3015 states and 5147 transitions. [2024-11-08 15:04:16,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-08 15:04:16,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:04:16,036 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:04:16,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 15:04:16,036 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:04:16,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:04:16,036 INFO L85 PathProgramCache]: Analyzing trace with hash 531620904, now seen corresponding path program 1 times [2024-11-08 15:04:16,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:04:16,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170619381] [2024-11-08 15:04:16,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:16,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:04:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:16,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:04:16,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:16,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:04:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:16,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:04:16,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:16,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:04:16,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:16,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:04:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:16,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:04:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:16,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 15:04:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:16,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 15:04:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:16,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 15:04:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:16,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 15:04:16,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:16,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 15:04:16,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:16,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 15:04:16,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:16,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 15:04:16,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:16,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 15:04:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:16,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 15:04:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:16,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 15:04:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:16,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-08 15:04:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:16,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-08 15:04:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:16,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-08 15:04:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:16,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-08 15:04:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:16,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-08 15:04:16,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:16,131 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-08 15:04:16,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:04:16,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170619381] [2024-11-08 15:04:16,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170619381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:04:16,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:04:16,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:04:16,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793888395] [2024-11-08 15:04:16,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:04:16,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:04:16,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:04:16,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:04:16,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:04:16,132 INFO L87 Difference]: Start difference. First operand 3015 states and 5147 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-08 15:04:17,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:04:17,573 INFO L93 Difference]: Finished difference Result 7425 states and 12883 transitions. [2024-11-08 15:04:17,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:04:17,574 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 181 [2024-11-08 15:04:17,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:04:17,592 INFO L225 Difference]: With dead ends: 7425 [2024-11-08 15:04:17,592 INFO L226 Difference]: Without dead ends: 4860 [2024-11-08 15:04:17,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:04:17,600 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 1643 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1991 mSolverCounterSat, 581 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1662 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 2572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 581 IncrementalHoareTripleChecker+Valid, 1991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:04:17,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1662 Valid, 981 Invalid, 2572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [581 Valid, 1991 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 15:04:17,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4860 states. [2024-11-08 15:04:17,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4860 to 4640. [2024-11-08 15:04:17,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4640 states, 3833 states have (on average 1.6553613357683277) internal successors, (6345), 3842 states have internal predecessors, (6345), 774 states have call successors, (774), 29 states have call predecessors, (774), 32 states have return successors, (845), 770 states have call predecessors, (845), 771 states have call successors, (845) [2024-11-08 15:04:17,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4640 states to 4640 states and 7964 transitions. [2024-11-08 15:04:17,756 INFO L78 Accepts]: Start accepts. Automaton has 4640 states and 7964 transitions. Word has length 181 [2024-11-08 15:04:17,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:04:17,756 INFO L471 AbstractCegarLoop]: Abstraction has 4640 states and 7964 transitions. [2024-11-08 15:04:17,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-08 15:04:17,760 INFO L276 IsEmpty]: Start isEmpty. Operand 4640 states and 7964 transitions. [2024-11-08 15:04:17,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-08 15:04:17,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:04:17,778 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:04:17,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 15:04:17,778 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:04:17,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:04:17,778 INFO L85 PathProgramCache]: Analyzing trace with hash -3258512, now seen corresponding path program 1 times [2024-11-08 15:04:17,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:04:17,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236735688] [2024-11-08 15:04:17,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:17,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:04:17,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:17,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:04:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:17,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:04:17,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:17,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:04:17,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:17,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:04:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:17,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:04:17,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:17,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:04:17,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:17,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 15:04:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:17,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 15:04:17,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:17,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 15:04:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:17,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 15:04:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:17,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 15:04:17,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:17,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 15:04:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:17,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 15:04:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:17,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 15:04:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:17,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-08 15:04:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:17,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-08 15:04:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:17,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-08 15:04:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:17,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-08 15:04:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:17,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-08 15:04:17,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:17,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-08 15:04:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:17,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-08 15:04:17,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:17,917 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-08 15:04:17,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:04:17,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236735688] [2024-11-08 15:04:17,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236735688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:04:17,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:04:17,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:04:17,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682144404] [2024-11-08 15:04:17,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:04:17,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:04:17,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:04:17,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:04:17,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:04:17,919 INFO L87 Difference]: Start difference. First operand 4640 states and 7964 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-08 15:04:19,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:04:19,340 INFO L93 Difference]: Finished difference Result 11471 states and 20043 transitions. [2024-11-08 15:04:19,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:04:19,340 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 182 [2024-11-08 15:04:19,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:04:19,371 INFO L225 Difference]: With dead ends: 11471 [2024-11-08 15:04:19,371 INFO L226 Difference]: Without dead ends: 7593 [2024-11-08 15:04:19,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:04:19,382 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 1639 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 2021 mSolverCounterSat, 599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1657 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 2620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 599 IncrementalHoareTripleChecker+Valid, 2021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:04:19,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1657 Valid, 1011 Invalid, 2620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [599 Valid, 2021 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 15:04:19,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7593 states. [2024-11-08 15:04:19,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7593 to 7373. [2024-11-08 15:04:19,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7373 states, 6073 states have (on average 1.654865799440145) internal successors, (10050), 6082 states have internal predecessors, (10050), 1267 states have call successors, (1267), 29 states have call predecessors, (1267), 32 states have return successors, (1382), 1263 states have call predecessors, (1382), 1264 states have call successors, (1382) [2024-11-08 15:04:19,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7373 states to 7373 states and 12699 transitions. [2024-11-08 15:04:19,678 INFO L78 Accepts]: Start accepts. Automaton has 7373 states and 12699 transitions. Word has length 182 [2024-11-08 15:04:19,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:04:19,679 INFO L471 AbstractCegarLoop]: Abstraction has 7373 states and 12699 transitions. [2024-11-08 15:04:19,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-08 15:04:19,681 INFO L276 IsEmpty]: Start isEmpty. Operand 7373 states and 12699 transitions. [2024-11-08 15:04:19,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-08 15:04:19,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:04:19,702 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:04:19,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 15:04:19,702 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:04:19,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:04:19,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1296412629, now seen corresponding path program 1 times [2024-11-08 15:04:19,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:04:19,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139558006] [2024-11-08 15:04:19,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:19,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:04:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:19,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:04:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:19,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:04:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:19,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:04:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:19,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:04:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:19,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:04:19,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:19,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:04:19,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:19,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 15:04:19,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:19,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 15:04:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:19,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:04:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:19,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 15:04:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:19,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 15:04:19,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:19,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 15:04:19,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:19,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 15:04:19,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:19,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 15:04:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:19,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 15:04:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:19,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 15:04:19,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:19,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 15:04:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:19,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-08 15:04:19,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:19,790 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-08 15:04:19,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:04:19,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139558006] [2024-11-08 15:04:19,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139558006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:04:19,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:04:19,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:04:19,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222777645] [2024-11-08 15:04:19,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:04:19,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:04:19,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:04:19,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:04:19,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:04:19,792 INFO L87 Difference]: Start difference. First operand 7373 states and 12699 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 15:04:21,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:04:21,312 INFO L93 Difference]: Finished difference Result 18806 states and 32927 transitions. [2024-11-08 15:04:21,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:04:21,313 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 164 [2024-11-08 15:04:21,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:04:21,344 INFO L225 Difference]: With dead ends: 18806 [2024-11-08 15:04:21,344 INFO L226 Difference]: Without dead ends: 12572 [2024-11-08 15:04:21,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:04:21,356 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 1636 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 1994 mSolverCounterSat, 601 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1654 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 2595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 601 IncrementalHoareTripleChecker+Valid, 1994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:04:21,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1654 Valid, 989 Invalid, 2595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [601 Valid, 1994 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 15:04:21,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12572 states. [2024-11-08 15:04:21,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12572 to 12352. [2024-11-08 15:04:21,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12352 states, 10230 states have (on average 1.6559139784946237) internal successors, (16940), 10239 states have internal predecessors, (16940), 2089 states have call successors, (2089), 29 states have call predecessors, (2089), 32 states have return successors, (2282), 2085 states have call predecessors, (2282), 2086 states have call successors, (2282) [2024-11-08 15:04:21,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12352 states to 12352 states and 21311 transitions. [2024-11-08 15:04:21,709 INFO L78 Accepts]: Start accepts. Automaton has 12352 states and 21311 transitions. Word has length 164 [2024-11-08 15:04:21,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:04:21,709 INFO L471 AbstractCegarLoop]: Abstraction has 12352 states and 21311 transitions. [2024-11-08 15:04:21,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 15:04:21,710 INFO L276 IsEmpty]: Start isEmpty. Operand 12352 states and 21311 transitions. [2024-11-08 15:04:21,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-08 15:04:21,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:04:21,745 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:04:21,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 15:04:21,745 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:04:21,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:04:21,746 INFO L85 PathProgramCache]: Analyzing trace with hash 465039970, now seen corresponding path program 1 times [2024-11-08 15:04:21,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:04:21,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702821727] [2024-11-08 15:04:21,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:21,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:04:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:21,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:04:21,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:21,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:04:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:21,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:04:21,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:21,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:04:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:21,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:04:21,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:21,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:04:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:21,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 15:04:21,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:21,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 15:04:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:21,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 15:04:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:21,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 15:04:21,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:21,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 15:04:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:21,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 15:04:21,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:21,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 15:04:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:21,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-08 15:04:21,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:21,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-08 15:04:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:21,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-08 15:04:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:21,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-08 15:04:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:21,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-08 15:04:21,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:21,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-08 15:04:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:21,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-08 15:04:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:21,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-08 15:04:21,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:21,839 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-08 15:04:21,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:04:21,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702821727] [2024-11-08 15:04:21,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702821727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:04:21,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:04:21,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:04:21,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943506528] [2024-11-08 15:04:21,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:04:21,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:04:21,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:04:21,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:04:21,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:04:21,840 INFO L87 Difference]: Start difference. First operand 12352 states and 21311 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-08 15:04:23,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:04:23,534 INFO L93 Difference]: Finished difference Result 29764 states and 51892 transitions. [2024-11-08 15:04:23,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:04:23,534 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 184 [2024-11-08 15:04:23,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:04:23,592 INFO L225 Difference]: With dead ends: 29764 [2024-11-08 15:04:23,592 INFO L226 Difference]: Without dead ends: 19525 [2024-11-08 15:04:23,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:04:23,619 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 1638 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 1967 mSolverCounterSat, 602 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1657 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 2569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 602 IncrementalHoareTripleChecker+Valid, 1967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:04:23,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1657 Valid, 955 Invalid, 2569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [602 Valid, 1967 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 15:04:23,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19525 states. [2024-11-08 15:04:24,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19525 to 19305. [2024-11-08 15:04:24,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19305 states, 15980 states have (on average 1.6321652065081351) internal successors, (26082), 15989 states have internal predecessors, (26082), 3292 states have call successors, (3292), 29 states have call predecessors, (3292), 32 states have return successors, (3629), 3288 states have call predecessors, (3629), 3289 states have call successors, (3629) [2024-11-08 15:04:24,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19305 states to 19305 states and 33003 transitions. [2024-11-08 15:04:24,237 INFO L78 Accepts]: Start accepts. Automaton has 19305 states and 33003 transitions. Word has length 184 [2024-11-08 15:04:24,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:04:24,238 INFO L471 AbstractCegarLoop]: Abstraction has 19305 states and 33003 transitions. [2024-11-08 15:04:24,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-08 15:04:24,238 INFO L276 IsEmpty]: Start isEmpty. Operand 19305 states and 33003 transitions. [2024-11-08 15:04:24,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-08 15:04:24,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:04:24,271 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:04:24,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 15:04:24,271 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:04:24,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:04:24,271 INFO L85 PathProgramCache]: Analyzing trace with hash -842314877, now seen corresponding path program 1 times [2024-11-08 15:04:24,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:04:24,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167396448] [2024-11-08 15:04:24,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:24,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:04:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:24,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:04:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:24,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:04:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:24,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:04:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:24,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:04:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:24,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:04:24,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:24,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:04:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:24,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 15:04:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:24,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 15:04:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:24,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 15:04:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:24,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 15:04:24,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:24,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 15:04:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:24,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 15:04:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:24,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-08 15:04:24,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:24,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-08 15:04:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:24,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-08 15:04:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:24,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-08 15:04:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:24,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 15:04:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:24,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-08 15:04:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:24,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 15:04:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:24,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 15:04:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:24,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-08 15:04:24,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:24,364 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-08 15:04:24,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:04:24,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167396448] [2024-11-08 15:04:24,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167396448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:04:24,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:04:24,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:04:24,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864264036] [2024-11-08 15:04:24,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:04:24,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:04:24,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:04:24,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:04:24,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:04:24,365 INFO L87 Difference]: Start difference. First operand 19305 states and 33003 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-08 15:04:26,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:04:26,404 INFO L93 Difference]: Finished difference Result 51196 states and 89012 transitions. [2024-11-08 15:04:26,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:04:26,404 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 185 [2024-11-08 15:04:26,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:04:26,529 INFO L225 Difference]: With dead ends: 51196 [2024-11-08 15:04:26,529 INFO L226 Difference]: Without dead ends: 34646 [2024-11-08 15:04:26,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:04:26,576 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 1635 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 1984 mSolverCounterSat, 602 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1653 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 2586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 602 IncrementalHoareTripleChecker+Valid, 1984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 15:04:26,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1653 Valid, 983 Invalid, 2586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [602 Valid, 1984 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 15:04:26,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34646 states. [2024-11-08 15:04:27,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34646 to 34426. [2024-11-08 15:04:27,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34426 states, 28651 states have (on average 1.6294370179051343) internal successors, (46685), 28660 states have internal predecessors, (46685), 5742 states have call successors, (5742), 29 states have call predecessors, (5742), 32 states have return successors, (6353), 5738 states have call predecessors, (6353), 5739 states have call successors, (6353) [2024-11-08 15:04:27,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34426 states to 34426 states and 58780 transitions. [2024-11-08 15:04:27,802 INFO L78 Accepts]: Start accepts. Automaton has 34426 states and 58780 transitions. Word has length 185 [2024-11-08 15:04:27,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:04:27,803 INFO L471 AbstractCegarLoop]: Abstraction has 34426 states and 58780 transitions. [2024-11-08 15:04:27,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-08 15:04:27,803 INFO L276 IsEmpty]: Start isEmpty. Operand 34426 states and 58780 transitions. [2024-11-08 15:04:27,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-08 15:04:27,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:04:27,850 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:04:27,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 15:04:27,850 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:04:27,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:04:27,851 INFO L85 PathProgramCache]: Analyzing trace with hash -980546319, now seen corresponding path program 1 times [2024-11-08 15:04:27,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:04:27,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892377380] [2024-11-08 15:04:27,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:27,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:04:27,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:27,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:04:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:27,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:04:27,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:27,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:04:27,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:27,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:04:27,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:27,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:04:27,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:27,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:04:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:27,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 15:04:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:27,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 15:04:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:27,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 15:04:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:27,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 15:04:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:27,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 15:04:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:27,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-08 15:04:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:27,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-08 15:04:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:27,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-08 15:04:27,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:27,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 15:04:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:27,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 15:04:27,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:27,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-08 15:04:27,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:27,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-08 15:04:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:27,951 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-08 15:04:27,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:04:27,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892377380] [2024-11-08 15:04:27,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892377380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:04:27,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:04:27,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:04:27,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030190757] [2024-11-08 15:04:27,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:04:27,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:04:27,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:04:27,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:04:27,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:04:27,953 INFO L87 Difference]: Start difference. First operand 34426 states and 58780 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 15:04:30,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:04:30,821 INFO L93 Difference]: Finished difference Result 94068 states and 162806 transitions. [2024-11-08 15:04:30,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:04:30,821 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 167 [2024-11-08 15:04:30,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:04:31,006 INFO L225 Difference]: With dead ends: 94068 [2024-11-08 15:04:31,007 INFO L226 Difference]: Without dead ends: 63313 [2024-11-08 15:04:31,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:04:31,060 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 1635 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 1988 mSolverCounterSat, 611 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1654 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 2599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 611 IncrementalHoareTripleChecker+Valid, 1988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 15:04:31,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1654 Valid, 1022 Invalid, 2599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [611 Valid, 1988 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 15:04:31,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63313 states. [2024-11-08 15:04:32,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63313 to 63093. [2024-11-08 15:04:32,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63093 states, 52805 states have (on average 1.6255278856168924) internal successors, (85836), 52814 states have internal predecessors, (85836), 10255 states have call successors, (10255), 29 states have call predecessors, (10255), 32 states have return successors, (11398), 10251 states have call predecessors, (11398), 10252 states have call successors, (11398) [2024-11-08 15:04:33,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63093 states to 63093 states and 107489 transitions. [2024-11-08 15:04:33,105 INFO L78 Accepts]: Start accepts. Automaton has 63093 states and 107489 transitions. Word has length 167 [2024-11-08 15:04:33,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:04:33,106 INFO L471 AbstractCegarLoop]: Abstraction has 63093 states and 107489 transitions. [2024-11-08 15:04:33,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 15:04:33,106 INFO L276 IsEmpty]: Start isEmpty. Operand 63093 states and 107489 transitions. [2024-11-08 15:04:33,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-08 15:04:33,189 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:04:33,189 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:04:33,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 15:04:33,190 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:04:33,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:04:33,190 INFO L85 PathProgramCache]: Analyzing trace with hash 19121078, now seen corresponding path program 1 times [2024-11-08 15:04:33,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:04:33,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346745538] [2024-11-08 15:04:33,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:33,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:04:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:33,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:04:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:33,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:04:33,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:33,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:04:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:33,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:04:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:33,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:04:33,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:33,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:04:33,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:33,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 15:04:33,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:33,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:04:33,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:33,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 15:04:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:33,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 15:04:33,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:33,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 15:04:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:33,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 15:04:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:33,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-08 15:04:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:33,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-08 15:04:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:33,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 15:04:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:33,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-08 15:04:33,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:33,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-08 15:04:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:33,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-08 15:04:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:33,607 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-08 15:04:33,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:04:33,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346745538] [2024-11-08 15:04:33,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346745538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:04:33,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:04:33,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:04:33,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745734111] [2024-11-08 15:04:33,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:04:33,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:04:33,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:04:33,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:04:33,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:04:33,609 INFO L87 Difference]: Start difference. First operand 63093 states and 107489 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 15:04:36,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:04:36,783 INFO L93 Difference]: Finished difference Result 118444 states and 205440 transitions. [2024-11-08 15:04:36,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:04:36,783 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 168 [2024-11-08 15:04:36,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:04:37,338 INFO L225 Difference]: With dead ends: 118444 [2024-11-08 15:04:37,339 INFO L226 Difference]: Without dead ends: 118186 [2024-11-08 15:04:37,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:04:37,368 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 1630 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 1981 mSolverCounterSat, 604 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1648 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 2585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 604 IncrementalHoareTripleChecker+Valid, 1981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 15:04:37,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1648 Valid, 1019 Invalid, 2585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [604 Valid, 1981 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 15:04:37,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118186 states. [2024-11-08 15:04:40,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118186 to 117966. [2024-11-08 15:04:40,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117966 states, 99310 states have (on average 1.6204511126774745) internal successors, (160927), 99319 states have internal predecessors, (160927), 18623 states have call successors, (18623), 29 states have call predecessors, (18623), 32 states have return successors, (20812), 18619 states have call predecessors, (20812), 18620 states have call successors, (20812) [2024-11-08 15:04:40,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117966 states to 117966 states and 200362 transitions. [2024-11-08 15:04:40,952 INFO L78 Accepts]: Start accepts. Automaton has 117966 states and 200362 transitions. Word has length 168 [2024-11-08 15:04:40,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:04:40,952 INFO L471 AbstractCegarLoop]: Abstraction has 117966 states and 200362 transitions. [2024-11-08 15:04:40,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 15:04:40,952 INFO L276 IsEmpty]: Start isEmpty. Operand 117966 states and 200362 transitions. [2024-11-08 15:04:41,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-08 15:04:41,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:04:41,038 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:04:41,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 15:04:41,038 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:04:41,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:04:41,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1942634320, now seen corresponding path program 1 times [2024-11-08 15:04:41,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:04:41,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641554925] [2024-11-08 15:04:41,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:41,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:04:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:41,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:04:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:41,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:04:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:41,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:04:41,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:41,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:04:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:41,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:04:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:41,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:04:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:41,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 15:04:41,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:41,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 15:04:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:41,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 15:04:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:41,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 15:04:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:41,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 15:04:41,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:41,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 15:04:41,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:41,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 15:04:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:41,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 15:04:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:41,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-08 15:04:41,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:41,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-08 15:04:41,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:41,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-08 15:04:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:41,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-08 15:04:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:41,619 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-08 15:04:41,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:04:41,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641554925] [2024-11-08 15:04:41,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641554925] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:04:41,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796031913] [2024-11-08 15:04:41,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:41,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:04:41,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:04:41,621 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:04:41,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 15:04:41,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:41,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 15:04:41,923 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:04:42,097 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-08 15:04:42,098 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:04:42,350 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-08 15:04:42,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796031913] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:04:42,350 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:04:42,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 9, 9] total 32 [2024-11-08 15:04:42,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556410855] [2024-11-08 15:04:42,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:04:42,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-08 15:04:42,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:04:42,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-08 15:04:42,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=914, Unknown=0, NotChecked=0, Total=992 [2024-11-08 15:04:42,352 INFO L87 Difference]: Start difference. First operand 117966 states and 200362 transitions. Second operand has 32 states, 30 states have (on average 8.733333333333333) internal successors, (262), 24 states have internal predecessors, (262), 9 states have call successors, (56), 12 states have call predecessors, (56), 12 states have return successors, (47), 11 states have call predecessors, (47), 9 states have call successors, (47)