./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec3_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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_product27.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 1c4d0e54eab5e94cf1a4af64165a2546f1c45e063bd8600195a743522777000c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 01:55:31,911 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 01:55:31,991 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 01:55:31,996 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 01:55:31,997 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 01:55:32,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 01:55:32,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 01:55:32,022 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 01:55:32,023 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 01:55:32,023 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 01:55:32,024 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 01:55:32,024 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 01:55:32,024 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 01:55:32,025 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 01:55:32,025 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 01:55:32,026 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 01:55:32,026 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 01:55:32,026 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 01:55:32,027 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 01:55:32,027 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 01:55:32,027 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 01:55:32,028 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 01:55:32,028 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 01:55:32,029 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 01:55:32,029 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 01:55:32,029 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 01:55:32,030 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 01:55:32,030 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 01:55:32,030 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 01:55:32,031 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 01:55:32,031 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 01:55:32,031 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 01:55:32,032 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:55:32,032 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 01:55:32,032 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 01:55:32,033 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 01:55:32,033 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 01:55:32,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 01:55:32,034 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 01:55:32,034 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 01:55:32,034 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 01:55:32,036 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 01:55:32,036 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c4d0e54eab5e94cf1a4af64165a2546f1c45e063bd8600195a743522777000c [2024-11-22 01:55:32,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 01:55:32,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 01:55:32,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 01:55:32,337 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 01:55:32,338 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 01:55:32,339 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec3_product27.cil.c [2024-11-22 01:55:33,850 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 01:55:34,180 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 01:55:34,181 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product27.cil.c [2024-11-22 01:55:34,207 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef87c7342/1ba2b675090e422db215f686c72a2fb0/FLAG0b1005cae [2024-11-22 01:55:34,434 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef87c7342/1ba2b675090e422db215f686c72a2fb0 [2024-11-22 01:55:34,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 01:55:34,438 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 01:55:34,439 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 01:55:34,439 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 01:55:34,445 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 01:55:34,446 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:55:34" (1/1) ... [2024-11-22 01:55:34,447 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f279857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:34, skipping insertion in model container [2024-11-22 01:55:34,449 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:55:34" (1/1) ... [2024-11-22 01:55:34,551 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 01:55:35,106 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_product27.cil.c[40661,40674] [2024-11-22 01:55:35,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:55:35,171 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 01:55:35,181 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2024-11-22 01:55:35,183 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [167] [2024-11-22 01:55:35,183 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [184] [2024-11-22 01:55:35,183 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [550] [2024-11-22 01:55:35,183 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [612] [2024-11-22 01:55:35,184 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [650] [2024-11-22 01:55:35,184 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1054] [2024-11-22 01:55:35,184 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1435] [2024-11-22 01:55:35,185 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1756] [2024-11-22 01:55:35,185 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1978] [2024-11-22 01:55:35,186 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1987] [2024-11-22 01:55:35,273 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_product27.cil.c[40661,40674] [2024-11-22 01:55:35,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:55:35,340 INFO L204 MainTranslator]: Completed translation [2024-11-22 01:55:35,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:35 WrapperNode [2024-11-22 01:55:35,341 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 01:55:35,342 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 01:55:35,343 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 01:55:35,343 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 01:55:35,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:35" (1/1) ... [2024-11-22 01:55:35,381 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:35" (1/1) ... [2024-11-22 01:55:35,453 INFO L138 Inliner]: procedures = 134, calls = 215, calls flagged for inlining = 63, calls inlined = 60, statements flattened = 1103 [2024-11-22 01:55:35,454 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 01:55:35,459 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 01:55:35,460 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 01:55:35,460 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 01:55:35,474 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:35" (1/1) ... [2024-11-22 01:55:35,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:35" (1/1) ... [2024-11-22 01:55:35,480 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:35" (1/1) ... [2024-11-22 01:55:35,506 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]. [2024-11-22 01:55:35,507 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:35" (1/1) ... [2024-11-22 01:55:35,507 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:35" (1/1) ... [2024-11-22 01:55:35,526 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:35" (1/1) ... [2024-11-22 01:55:35,536 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:35" (1/1) ... [2024-11-22 01:55:35,542 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:35" (1/1) ... [2024-11-22 01:55:35,547 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:35" (1/1) ... [2024-11-22 01:55:35,556 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 01:55:35,558 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 01:55:35,558 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 01:55:35,558 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 01:55:35,559 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:35" (1/1) ... [2024-11-22 01:55:35,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:55:35,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:55:35,597 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) [2024-11-22 01:55:35,603 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 [2024-11-22 01:55:35,642 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-22 01:55:35,642 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-22 01:55:35,642 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-22 01:55:35,642 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-22 01:55:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-22 01:55:35,643 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-22 01:55:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2024-11-22 01:55:35,643 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2024-11-22 01:55:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-22 01:55:35,643 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-22 01:55:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-22 01:55:35,643 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-22 01:55:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-22 01:55:35,644 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-22 01:55:35,644 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-22 01:55:35,644 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-22 01:55:35,644 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-22 01:55:35,644 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-22 01:55:35,644 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-22 01:55:35,645 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-22 01:55:35,645 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-22 01:55:35,645 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-22 01:55:35,645 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-22 01:55:35,645 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-22 01:55:35,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 01:55:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-22 01:55:35,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-22 01:55:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-22 01:55:35,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-22 01:55:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-22 01:55:35,646 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-22 01:55:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-22 01:55:35,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-22 01:55:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-22 01:55:35,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-22 01:55:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-22 01:55:35,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-22 01:55:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-22 01:55:35,648 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-22 01:55:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-22 01:55:35,648 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-22 01:55:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-22 01:55:35,648 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-22 01:55:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-22 01:55:35,648 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-22 01:55:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-22 01:55:35,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-22 01:55:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 01:55:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 01:55:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 01:55:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 01:55:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-22 01:55:35,650 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-22 01:55:35,650 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-22 01:55:35,650 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-22 01:55:35,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 01:55:35,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 01:55:35,854 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 01:55:35,857 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 01:55:36,873 INFO L? ?]: Removed 564 outVars from TransFormulas that were not future-live. [2024-11-22 01:55:36,874 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 01:55:36,907 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 01:55:36,907 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 01:55:36,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:55:36 BoogieIcfgContainer [2024-11-22 01:55:36,908 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 01:55:36,913 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 01:55:36,913 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 01:55:36,916 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 01:55:36,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:55:34" (1/3) ... [2024-11-22 01:55:36,917 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f017a63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:55:36, skipping insertion in model container [2024-11-22 01:55:36,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:35" (2/3) ... [2024-11-22 01:55:36,917 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f017a63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:55:36, skipping insertion in model container [2024-11-22 01:55:36,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:55:36" (3/3) ... [2024-11-22 01:55:36,919 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product27.cil.c [2024-11-22 01:55:36,934 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 01:55:36,935 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 01:55:37,028 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 01:55:37,035 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;@4b2ec2ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 01:55:37,036 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 01:55:37,045 INFO L276 IsEmpty]: Start isEmpty. Operand has 420 states, 327 states have (on average 1.5535168195718654) internal successors, (508), 332 states have internal predecessors, (508), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (66), 64 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-22 01:55:37,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-22 01:55:37,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:37,080 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:37,080 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:37,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:37,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1553768308, now seen corresponding path program 1 times [2024-11-22 01:55:37,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:37,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239795607] [2024-11-22 01:55:37,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:37,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:37,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:37,931 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-22 01:55:37,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:37,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239795607] [2024-11-22 01:55:37,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239795607] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:55:37,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589377637] [2024-11-22 01:55:37,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:37,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:55:37,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:55:37,938 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) [2024-11-22 01:55:37,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 01:55:38,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:38,334 INFO L255 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 01:55:38,360 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:55:38,382 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 01:55:38,383 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:55:38,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589377637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:38,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:55:38,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2024-11-22 01:55:38,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356296542] [2024-11-22 01:55:38,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:38,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 01:55:38,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:38,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 01:55:38,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:55:38,427 INFO L87 Difference]: Start difference. First operand has 420 states, 327 states have (on average 1.5535168195718654) internal successors, (508), 332 states have internal predecessors, (508), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (66), 64 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:38,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:38,514 INFO L93 Difference]: Finished difference Result 641 states and 962 transitions. [2024-11-22 01:55:38,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 01:55:38,519 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 112 [2024-11-22 01:55:38,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:38,545 INFO L225 Difference]: With dead ends: 641 [2024-11-22 01:55:38,546 INFO L226 Difference]: Without dead ends: 412 [2024-11-22 01:55:38,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:55:38,563 INFO L432 NwaCegarLoop]: 634 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, 634 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 [2024-11-22 01:55:38,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:38,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-11-22 01:55:38,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2024-11-22 01:55:38,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 321 states have (on average 1.5482866043613708) internal successors, (497), 324 states have internal predecessors, (497), 66 states have call successors, (66), 25 states have call predecessors, (66), 24 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-22 01:55:38,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 626 transitions. [2024-11-22 01:55:38,672 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 626 transitions. Word has length 112 [2024-11-22 01:55:38,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:38,675 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 626 transitions. [2024-11-22 01:55:38,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:38,675 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 626 transitions. [2024-11-22 01:55:38,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-22 01:55:38,683 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:38,683 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:38,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 01:55:38,886 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 [2024-11-22 01:55:38,886 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:38,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:38,887 INFO L85 PathProgramCache]: Analyzing trace with hash -179595385, now seen corresponding path program 1 times [2024-11-22 01:55:38,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:38,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612097398] [2024-11-22 01:55:38,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:38,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:39,216 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:55:39,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:39,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612097398] [2024-11-22 01:55:39,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612097398] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:55:39,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489049610] [2024-11-22 01:55:39,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:39,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:55:39,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:55:39,221 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) [2024-11-22 01:55:39,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 01:55:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:39,621 INFO L255 TraceCheckSpWp]: Trace formula consists of 1172 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 01:55:39,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:55:39,664 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-22 01:55:39,664 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:55:39,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489049610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:39,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:55:39,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 01:55:39,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645377711] [2024-11-22 01:55:39,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:39,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:55:39,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:39,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:55:39,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:55:39,671 INFO L87 Difference]: Start difference. First operand 412 states and 626 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:55:39,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:39,726 INFO L93 Difference]: Finished difference Result 630 states and 936 transitions. [2024-11-22 01:55:39,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:55:39,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 132 [2024-11-22 01:55:39,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:39,736 INFO L225 Difference]: With dead ends: 630 [2024-11-22 01:55:39,736 INFO L226 Difference]: Without dead ends: 415 [2024-11-22 01:55:39,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:55:39,739 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 1 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1246 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 [2024-11-22 01:55:39,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1246 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:39,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-22 01:55:39,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 414. [2024-11-22 01:55:39,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 323 states have (on average 1.5448916408668731) internal successors, (499), 326 states have internal predecessors, (499), 66 states have call successors, (66), 25 states have call predecessors, (66), 24 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-22 01:55:39,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 628 transitions. [2024-11-22 01:55:39,768 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 628 transitions. Word has length 132 [2024-11-22 01:55:39,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:39,772 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 628 transitions. [2024-11-22 01:55:39,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:55:39,773 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 628 transitions. [2024-11-22 01:55:39,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-22 01:55:39,775 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:39,776 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:39,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 01:55:39,977 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 [2024-11-22 01:55:39,978 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:39,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:39,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1636196821, now seen corresponding path program 1 times [2024-11-22 01:55:39,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:39,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573412047] [2024-11-22 01:55:39,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:39,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:40,207 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 01:55:40,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:40,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573412047] [2024-11-22 01:55:40,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573412047] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:55:40,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190846213] [2024-11-22 01:55:40,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:40,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:55:40,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:55:40,215 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) [2024-11-22 01:55:40,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 01:55:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:40,533 INFO L255 TraceCheckSpWp]: Trace formula consists of 1119 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:55:40,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:55:40,566 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 01:55:40,566 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:55:40,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190846213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:40,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:55:40,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 01:55:40,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715975064] [2024-11-22 01:55:40,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:40,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:55:40,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:40,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:55:40,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:55:40,569 INFO L87 Difference]: Start difference. First operand 414 states and 628 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:40,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:40,640 INFO L93 Difference]: Finished difference Result 881 states and 1356 transitions. [2024-11-22 01:55:40,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:55:40,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 122 [2024-11-22 01:55:40,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:40,646 INFO L225 Difference]: With dead ends: 881 [2024-11-22 01:55:40,646 INFO L226 Difference]: Without dead ends: 494 [2024-11-22 01:55:40,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:55:40,651 INFO L432 NwaCegarLoop]: 642 mSDtfsCounter, 142 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1221 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 [2024-11-22 01:55:40,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1221 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:40,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-11-22 01:55:40,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 486. [2024-11-22 01:55:40,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 381 states have (on average 1.5643044619422573) internal successors, (596), 384 states have internal predecessors, (596), 80 states have call successors, (80), 25 states have call predecessors, (80), 24 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-22 01:55:40,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 753 transitions. [2024-11-22 01:55:40,689 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 753 transitions. Word has length 122 [2024-11-22 01:55:40,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:40,691 INFO L471 AbstractCegarLoop]: Abstraction has 486 states and 753 transitions. [2024-11-22 01:55:40,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:40,692 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 753 transitions. [2024-11-22 01:55:40,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-22 01:55:40,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:40,695 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-11-22 01:55:40,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 01:55:40,897 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 [2024-11-22 01:55:40,898 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:40,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:40,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1246448940, now seen corresponding path program 1 times [2024-11-22 01:55:40,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:40,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269980574] [2024-11-22 01:55:40,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:40,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:40,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:41,082 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-22 01:55:41,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:41,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269980574] [2024-11-22 01:55:41,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269980574] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:55:41,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422268807] [2024-11-22 01:55:41,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:41,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:55:41,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:55:41,089 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) [2024-11-22 01:55:41,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 01:55:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:41,438 INFO L255 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 01:55:41,444 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:55:41,514 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-22 01:55:41,516 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:55:41,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422268807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:41,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:55:41,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-22 01:55:41,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740606207] [2024-11-22 01:55:41,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:41,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:55:41,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:41,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:55:41,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:55:41,519 INFO L87 Difference]: Start difference. First operand 486 states and 753 transitions. Second operand has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 01:55:41,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:41,590 INFO L93 Difference]: Finished difference Result 963 states and 1496 transitions. [2024-11-22 01:55:41,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:55:41,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 142 [2024-11-22 01:55:41,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:41,595 INFO L225 Difference]: With dead ends: 963 [2024-11-22 01:55:41,595 INFO L226 Difference]: Without dead ends: 488 [2024-11-22 01:55:41,597 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:55:41,598 INFO L432 NwaCegarLoop]: 618 mSDtfsCounter, 2 mSDsluCounter, 1843 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2461 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 [2024-11-22 01:55:41,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2461 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:41,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-11-22 01:55:41,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2024-11-22 01:55:41,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 382 states have (on average 1.5628272251308901) internal successors, (597), 386 states have internal predecessors, (597), 80 states have call successors, (80), 25 states have call predecessors, (80), 25 states have return successors, (79), 76 states have call predecessors, (79), 77 states have call successors, (79) [2024-11-22 01:55:41,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 756 transitions. [2024-11-22 01:55:41,641 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 756 transitions. Word has length 142 [2024-11-22 01:55:41,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:41,642 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 756 transitions. [2024-11-22 01:55:41,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 01:55:41,642 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 756 transitions. [2024-11-22 01:55:41,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-22 01:55:41,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:41,645 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2024-11-22 01:55:41,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 01:55:41,846 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 [2024-11-22 01:55:41,847 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:41,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:41,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1898086940, now seen corresponding path program 1 times [2024-11-22 01:55:41,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:41,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363044304] [2024-11-22 01:55:41,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:41,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:41,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:42,041 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 01:55:42,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:42,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363044304] [2024-11-22 01:55:42,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363044304] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:55:42,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80515902] [2024-11-22 01:55:42,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:42,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:55:42,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:55:42,045 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) [2024-11-22 01:55:42,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 01:55:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:42,379 INFO L255 TraceCheckSpWp]: Trace formula consists of 1203 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 01:55:42,385 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:55:42,445 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-22 01:55:42,446 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:55:42,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80515902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:42,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:55:42,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-22 01:55:42,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795393893] [2024-11-22 01:55:42,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:42,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:55:42,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:42,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:55:42,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:55:42,448 INFO L87 Difference]: Start difference. First operand 488 states and 756 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 01:55:42,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:42,522 INFO L93 Difference]: Finished difference Result 965 states and 1501 transitions. [2024-11-22 01:55:42,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:55:42,522 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 143 [2024-11-22 01:55:42,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:42,527 INFO L225 Difference]: With dead ends: 965 [2024-11-22 01:55:42,527 INFO L226 Difference]: Without dead ends: 490 [2024-11-22 01:55:42,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:55:42,530 INFO L432 NwaCegarLoop]: 616 mSDtfsCounter, 2 mSDsluCounter, 1831 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2447 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 [2024-11-22 01:55:42,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2447 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:42,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-11-22 01:55:42,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2024-11-22 01:55:42,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 383 states have (on average 1.5613577023498695) internal successors, (598), 388 states have internal predecessors, (598), 80 states have call successors, (80), 25 states have call predecessors, (80), 26 states have return successors, (84), 76 states have call predecessors, (84), 77 states have call successors, (84) [2024-11-22 01:55:42,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 762 transitions. [2024-11-22 01:55:42,553 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 762 transitions. Word has length 143 [2024-11-22 01:55:42,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:42,553 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 762 transitions. [2024-11-22 01:55:42,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 01:55:42,554 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 762 transitions. [2024-11-22 01:55:42,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-22 01:55:42,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:42,557 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-22 01:55:42,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-22 01:55:42,757 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 [2024-11-22 01:55:42,758 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:42,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:42,759 INFO L85 PathProgramCache]: Analyzing trace with hash 684875090, now seen corresponding path program 1 times [2024-11-22 01:55:42,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:42,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719267069] [2024-11-22 01:55:42,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:42,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:42,975 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-22 01:55:42,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:42,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719267069] [2024-11-22 01:55:42,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719267069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:42,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:42,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:55:42,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267040657] [2024-11-22 01:55:42,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:42,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:55:42,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:42,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:55:42,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:55:42,977 INFO L87 Difference]: Start difference. First operand 490 states and 762 transitions. Second operand has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 01:55:43,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:43,025 INFO L93 Difference]: Finished difference Result 957 states and 1492 transitions. [2024-11-22 01:55:43,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:55:43,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 144 [2024-11-22 01:55:43,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:43,032 INFO L225 Difference]: With dead ends: 957 [2024-11-22 01:55:43,032 INFO L226 Difference]: Without dead ends: 490 [2024-11-22 01:55:43,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:55:43,035 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 2 mSDsluCounter, 1846 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2465 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:55:43,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2465 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:43,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-11-22 01:55:43,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2024-11-22 01:55:43,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 383 states have (on average 1.5613577023498695) internal successors, (598), 388 states have internal predecessors, (598), 80 states have call successors, (80), 25 states have call predecessors, (80), 26 states have return successors, (83), 76 states have call predecessors, (83), 77 states have call successors, (83) [2024-11-22 01:55:43,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 761 transitions. [2024-11-22 01:55:43,064 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 761 transitions. Word has length 144 [2024-11-22 01:55:43,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:43,064 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 761 transitions. [2024-11-22 01:55:43,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 01:55:43,065 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 761 transitions. [2024-11-22 01:55:43,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-22 01:55:43,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:43,067 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:43,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 01:55:43,068 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:43,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:43,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1240025766, now seen corresponding path program 1 times [2024-11-22 01:55:43,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:43,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603738801] [2024-11-22 01:55:43,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:43,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:43,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:43,218 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 01:55:43,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:43,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603738801] [2024-11-22 01:55:43,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603738801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:43,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:43,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:55:43,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738419247] [2024-11-22 01:55:43,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:43,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:55:43,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:43,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:55:43,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:55:43,222 INFO L87 Difference]: Start difference. First operand 490 states and 761 transitions. Second operand has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:55:43,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:43,269 INFO L93 Difference]: Finished difference Result 959 states and 1495 transitions. [2024-11-22 01:55:43,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:55:43,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 126 [2024-11-22 01:55:43,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:43,302 INFO L225 Difference]: With dead ends: 959 [2024-11-22 01:55:43,302 INFO L226 Difference]: Without dead ends: 492 [2024-11-22 01:55:43,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:55:43,304 INFO L432 NwaCegarLoop]: 620 mSDtfsCounter, 1 mSDsluCounter, 1848 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2468 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 [2024-11-22 01:55:43,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2468 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:43,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2024-11-22 01:55:43,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 492. [2024-11-22 01:55:43,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 384 states have (on average 1.5598958333333333) internal successors, (599), 390 states have internal predecessors, (599), 80 states have call successors, (80), 25 states have call predecessors, (80), 27 states have return successors, (85), 76 states have call predecessors, (85), 77 states have call successors, (85) [2024-11-22 01:55:43,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 764 transitions. [2024-11-22 01:55:43,320 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 764 transitions. Word has length 126 [2024-11-22 01:55:43,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:43,320 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 764 transitions. [2024-11-22 01:55:43,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:55:43,320 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 764 transitions. [2024-11-22 01:55:43,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-22 01:55:43,322 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:43,323 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:43,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 01:55:43,323 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:43,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:43,323 INFO L85 PathProgramCache]: Analyzing trace with hash -724612385, now seen corresponding path program 1 times [2024-11-22 01:55:43,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:43,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794546853] [2024-11-22 01:55:43,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:43,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:43,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:43,452 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 01:55:43,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:43,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794546853] [2024-11-22 01:55:43,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794546853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:43,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:43,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:55:43,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245339110] [2024-11-22 01:55:43,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:43,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:55:43,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:43,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:55:43,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:55:43,455 INFO L87 Difference]: Start difference. First operand 492 states and 764 transitions. Second operand has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:55:43,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:43,502 INFO L93 Difference]: Finished difference Result 961 states and 1498 transitions. [2024-11-22 01:55:43,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:55:43,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 127 [2024-11-22 01:55:43,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:43,506 INFO L225 Difference]: With dead ends: 961 [2024-11-22 01:55:43,506 INFO L226 Difference]: Without dead ends: 494 [2024-11-22 01:55:43,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:55:43,508 INFO L432 NwaCegarLoop]: 618 mSDtfsCounter, 0 mSDsluCounter, 1843 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:55:43,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2461 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:43,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-11-22 01:55:43,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 492. [2024-11-22 01:55:43,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 384 states have (on average 1.5598958333333333) internal successors, (599), 390 states have internal predecessors, (599), 80 states have call successors, (80), 25 states have call predecessors, (80), 27 states have return successors, (85), 76 states have call predecessors, (85), 77 states have call successors, (85) [2024-11-22 01:55:43,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 764 transitions. [2024-11-22 01:55:43,526 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 764 transitions. Word has length 127 [2024-11-22 01:55:43,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:43,527 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 764 transitions. [2024-11-22 01:55:43,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:55:43,527 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 764 transitions. [2024-11-22 01:55:43,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-22 01:55:43,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:43,530 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:43,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 01:55:43,530 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:43,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:43,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1215969629, now seen corresponding path program 1 times [2024-11-22 01:55:43,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:43,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885067695] [2024-11-22 01:55:43,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:43,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:43,681 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:55:43,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:43,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885067695] [2024-11-22 01:55:43,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885067695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:43,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:43,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 01:55:43,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802715964] [2024-11-22 01:55:43,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:43,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:55:43,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:43,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:55:43,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:55:43,683 INFO L87 Difference]: Start difference. First operand 492 states and 764 transitions. Second operand has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 01:55:43,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:43,828 INFO L93 Difference]: Finished difference Result 961 states and 1494 transitions. [2024-11-22 01:55:43,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 01:55:43,829 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 127 [2024-11-22 01:55:43,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:43,833 INFO L225 Difference]: With dead ends: 961 [2024-11-22 01:55:43,833 INFO L226 Difference]: Without dead ends: 494 [2024-11-22 01:55:43,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:55:43,835 INFO L432 NwaCegarLoop]: 610 mSDtfsCounter, 7 mSDsluCounter, 3631 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4241 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:55:43,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4241 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:55:43,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-11-22 01:55:43,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2024-11-22 01:55:43,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 386 states have (on average 1.5569948186528497) internal successors, (601), 391 states have internal predecessors, (601), 80 states have call successors, (80), 26 states have call predecessors, (80), 27 states have return successors, (84), 76 states have call predecessors, (84), 77 states have call successors, (84) [2024-11-22 01:55:43,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 765 transitions. [2024-11-22 01:55:43,852 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 765 transitions. Word has length 127 [2024-11-22 01:55:43,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:43,853 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 765 transitions. [2024-11-22 01:55:43,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 01:55:43,853 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 765 transitions. [2024-11-22 01:55:43,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-22 01:55:43,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:43,856 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1] [2024-11-22 01:55:43,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 01:55:43,856 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:43,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:43,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1052264181, now seen corresponding path program 1 times [2024-11-22 01:55:43,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:43,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963601469] [2024-11-22 01:55:43,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:43,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:43,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:44,024 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 01:55:44,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:44,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963601469] [2024-11-22 01:55:44,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963601469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:44,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:44,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 01:55:44,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923607367] [2024-11-22 01:55:44,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:44,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:55:44,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:44,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:55:44,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:55:44,027 INFO L87 Difference]: Start difference. First operand 494 states and 765 transitions. Second operand has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 8 states have internal predecessors, (95), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-22 01:55:44,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:44,161 INFO L93 Difference]: Finished difference Result 966 states and 1504 transitions. [2024-11-22 01:55:44,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 01:55:44,162 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 8 states have internal predecessors, (95), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 147 [2024-11-22 01:55:44,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:44,166 INFO L225 Difference]: With dead ends: 966 [2024-11-22 01:55:44,166 INFO L226 Difference]: Without dead ends: 499 [2024-11-22 01:55:44,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:55:44,169 INFO L432 NwaCegarLoop]: 612 mSDtfsCounter, 5 mSDsluCounter, 3643 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4255 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:55:44,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4255 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:55:44,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-11-22 01:55:44,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 497. [2024-11-22 01:55:44,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 388 states have (on average 1.5541237113402062) internal successors, (603), 394 states have internal predecessors, (603), 80 states have call successors, (80), 26 states have call predecessors, (80), 28 states have return successors, (89), 76 states have call predecessors, (89), 77 states have call successors, (89) [2024-11-22 01:55:44,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 772 transitions. [2024-11-22 01:55:44,187 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 772 transitions. Word has length 147 [2024-11-22 01:55:44,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:44,188 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 772 transitions. [2024-11-22 01:55:44,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 8 states have internal predecessors, (95), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-22 01:55:44,188 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 772 transitions. [2024-11-22 01:55:44,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-22 01:55:44,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:44,191 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:44,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 01:55:44,191 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:44,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:44,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1820702430, now seen corresponding path program 1 times [2024-11-22 01:55:44,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:44,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830734992] [2024-11-22 01:55:44,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:44,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:44,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:44,388 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-22 01:55:44,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:44,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830734992] [2024-11-22 01:55:44,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830734992] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:55:44,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612601039] [2024-11-22 01:55:44,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:44,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:55:44,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:55:44,391 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) [2024-11-22 01:55:44,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 01:55:44,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:44,712 INFO L255 TraceCheckSpWp]: Trace formula consists of 1130 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:55:44,718 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:55:44,759 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:55:44,760 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 01:55:44,849 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:55:44,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612601039] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 01:55:44,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 01:55:44,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 11 [2024-11-22 01:55:44,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010202742] [2024-11-22 01:55:44,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 01:55:44,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 01:55:44,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:44,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 01:55:44,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:55:44,852 INFO L87 Difference]: Start difference. First operand 497 states and 772 transitions. Second operand has 11 states, 10 states have (on average 14.1) internal successors, (141), 11 states have internal predecessors, (141), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2024-11-22 01:55:45,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:45,589 INFO L93 Difference]: Finished difference Result 1431 states and 2316 transitions. [2024-11-22 01:55:45,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 01:55:45,590 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.1) internal successors, (141), 11 states have internal predecessors, (141), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 129 [2024-11-22 01:55:45,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:45,596 INFO L225 Difference]: With dead ends: 1431 [2024-11-22 01:55:45,597 INFO L226 Difference]: Without dead ends: 966 [2024-11-22 01:55:45,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2024-11-22 01:55:45,600 INFO L432 NwaCegarLoop]: 617 mSDtfsCounter, 1340 mSDsluCounter, 4800 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1340 SdHoareTripleChecker+Valid, 5417 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 01:55:45,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1340 Valid, 5417 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 01:55:45,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2024-11-22 01:55:45,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 942. [2024-11-22 01:55:45,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 754 states have (on average 1.606100795755968) internal successors, (1211), 759 states have internal predecessors, (1211), 159 states have call successors, (159), 27 states have call predecessors, (159), 28 states have return successors, (178), 155 states have call predecessors, (178), 156 states have call successors, (178) [2024-11-22 01:55:45,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1548 transitions. [2024-11-22 01:55:45,643 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1548 transitions. Word has length 129 [2024-11-22 01:55:45,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:45,643 INFO L471 AbstractCegarLoop]: Abstraction has 942 states and 1548 transitions. [2024-11-22 01:55:45,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.1) internal successors, (141), 11 states have internal predecessors, (141), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2024-11-22 01:55:45,643 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1548 transitions. [2024-11-22 01:55:45,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-22 01:55:45,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:45,648 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-22 01:55:45,659 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 01:55:45,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:55:45,849 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:45,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:45,850 INFO L85 PathProgramCache]: Analyzing trace with hash 509361892, now seen corresponding path program 1 times [2024-11-22 01:55:45,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:45,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881343619] [2024-11-22 01:55:45,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:45,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:45,971 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-22 01:55:45,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:45,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881343619] [2024-11-22 01:55:45,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881343619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:45,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:45,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:55:45,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569185410] [2024-11-22 01:55:45,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:45,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:55:45,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:45,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:55:45,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:45,975 INFO L87 Difference]: Start difference. First operand 942 states and 1548 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:55:46,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:46,037 INFO L93 Difference]: Finished difference Result 2224 states and 3714 transitions. [2024-11-22 01:55:46,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:55:46,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 151 [2024-11-22 01:55:46,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:46,049 INFO L225 Difference]: With dead ends: 2224 [2024-11-22 01:55:46,049 INFO L226 Difference]: Without dead ends: 1365 [2024-11-22 01:55:46,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:46,055 INFO L432 NwaCegarLoop]: 642 mSDtfsCounter, 139 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 1258 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 [2024-11-22 01:55:46,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 1258 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:46,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2024-11-22 01:55:46,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 1357. [2024-11-22 01:55:46,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 1090 states have (on average 1.6247706422018349) internal successors, (1771), 1095 states have internal predecessors, (1771), 238 states have call successors, (238), 27 states have call predecessors, (238), 28 states have return successors, (267), 234 states have call predecessors, (267), 235 states have call successors, (267) [2024-11-22 01:55:46,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 2276 transitions. [2024-11-22 01:55:46,126 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 2276 transitions. Word has length 151 [2024-11-22 01:55:46,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:46,126 INFO L471 AbstractCegarLoop]: Abstraction has 1357 states and 2276 transitions. [2024-11-22 01:55:46,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:55:46,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 2276 transitions. [2024-11-22 01:55:46,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 01:55:46,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:46,134 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:46,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 01:55:46,135 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:46,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:46,135 INFO L85 PathProgramCache]: Analyzing trace with hash 93471974, now seen corresponding path program 1 times [2024-11-22 01:55:46,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:46,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280211373] [2024-11-22 01:55:46,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:46,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:46,198 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:55:46,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:46,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280211373] [2024-11-22 01:55:46,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280211373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:46,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:46,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:55:46,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373169014] [2024-11-22 01:55:46,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:46,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:55:46,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:46,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:55:46,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:46,200 INFO L87 Difference]: Start difference. First operand 1357 states and 2276 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:46,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:46,262 INFO L93 Difference]: Finished difference Result 3263 states and 5511 transitions. [2024-11-22 01:55:46,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:55:46,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2024-11-22 01:55:46,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:46,276 INFO L225 Difference]: With dead ends: 3263 [2024-11-22 01:55:46,277 INFO L226 Difference]: Without dead ends: 2042 [2024-11-22 01:55:46,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:46,284 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 137 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1242 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 [2024-11-22 01:55:46,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 1242 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:46,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2042 states. [2024-11-22 01:55:46,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2042 to 2034. [2024-11-22 01:55:46,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2034 states, 1648 states have (on average 1.6341019417475728) internal successors, (2693), 1653 states have internal predecessors, (2693), 357 states have call successors, (357), 27 states have call predecessors, (357), 28 states have return successors, (386), 353 states have call predecessors, (386), 354 states have call successors, (386) [2024-11-22 01:55:46,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2034 states to 2034 states and 3436 transitions. [2024-11-22 01:55:46,389 INFO L78 Accepts]: Start accepts. Automaton has 2034 states and 3436 transitions. Word has length 133 [2024-11-22 01:55:46,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:46,389 INFO L471 AbstractCegarLoop]: Abstraction has 2034 states and 3436 transitions. [2024-11-22 01:55:46,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:46,390 INFO L276 IsEmpty]: Start isEmpty. Operand 2034 states and 3436 transitions. [2024-11-22 01:55:46,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-22 01:55:46,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:46,402 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-22 01:55:46,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 01:55:46,402 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:46,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:46,403 INFO L85 PathProgramCache]: Analyzing trace with hash -409306446, now seen corresponding path program 1 times [2024-11-22 01:55:46,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:46,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864861901] [2024-11-22 01:55:46,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:46,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:46,500 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-22 01:55:46,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:46,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864861901] [2024-11-22 01:55:46,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864861901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:46,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:46,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:55:46,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813436197] [2024-11-22 01:55:46,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:46,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:55:46,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:46,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:55:46,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:46,503 INFO L87 Difference]: Start difference. First operand 2034 states and 3436 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:55:46,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:46,594 INFO L93 Difference]: Finished difference Result 4848 states and 8256 transitions. [2024-11-22 01:55:46,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:55:46,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2024-11-22 01:55:46,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:46,615 INFO L225 Difference]: With dead ends: 4848 [2024-11-22 01:55:46,616 INFO L226 Difference]: Without dead ends: 3085 [2024-11-22 01:55:46,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:46,626 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 135 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1239 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 [2024-11-22 01:55:46,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1239 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:46,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3085 states. [2024-11-22 01:55:46,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3085 to 3077. [2024-11-22 01:55:46,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3077 states, 2529 states have (on average 1.6413602214313958) internal successors, (4151), 2534 states have internal predecessors, (4151), 519 states have call successors, (519), 27 states have call predecessors, (519), 28 states have return successors, (564), 515 states have call predecessors, (564), 516 states have call successors, (564) [2024-11-22 01:55:46,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3077 states to 3077 states and 5234 transitions. [2024-11-22 01:55:46,793 INFO L78 Accepts]: Start accepts. Automaton has 3077 states and 5234 transitions. Word has length 153 [2024-11-22 01:55:46,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:46,795 INFO L471 AbstractCegarLoop]: Abstraction has 3077 states and 5234 transitions. [2024-11-22 01:55:46,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:55:46,795 INFO L276 IsEmpty]: Start isEmpty. Operand 3077 states and 5234 transitions. [2024-11-22 01:55:46,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-22 01:55:46,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:46,810 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-22 01:55:46,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 01:55:46,811 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:46,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:46,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1019510181, now seen corresponding path program 1 times [2024-11-22 01:55:46,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:46,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695532861] [2024-11-22 01:55:46,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:46,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:46,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:46,889 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-22 01:55:46,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:46,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695532861] [2024-11-22 01:55:46,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695532861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:46,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:46,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:55:46,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834341767] [2024-11-22 01:55:46,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:46,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:55:46,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:46,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:55:46,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:46,892 INFO L87 Difference]: Start difference. First operand 3077 states and 5234 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:55:47,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:47,055 INFO L93 Difference]: Finished difference Result 7362 states and 12614 transitions. [2024-11-22 01:55:47,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:55:47,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 154 [2024-11-22 01:55:47,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:47,084 INFO L225 Difference]: With dead ends: 7362 [2024-11-22 01:55:47,084 INFO L226 Difference]: Without dead ends: 4775 [2024-11-22 01:55:47,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:47,097 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 133 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1239 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 [2024-11-22 01:55:47,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1239 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:47,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4775 states. [2024-11-22 01:55:47,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4775 to 4767. [2024-11-22 01:55:47,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4767 states, 3974 states have (on average 1.6464519375943634) internal successors, (6543), 3979 states have internal predecessors, (6543), 764 states have call successors, (764), 27 states have call predecessors, (764), 28 states have return successors, (835), 760 states have call predecessors, (835), 761 states have call successors, (835) [2024-11-22 01:55:47,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4767 states to 4767 states and 8142 transitions. [2024-11-22 01:55:47,321 INFO L78 Accepts]: Start accepts. Automaton has 4767 states and 8142 transitions. Word has length 154 [2024-11-22 01:55:47,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:47,322 INFO L471 AbstractCegarLoop]: Abstraction has 4767 states and 8142 transitions. [2024-11-22 01:55:47,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:55:47,322 INFO L276 IsEmpty]: Start isEmpty. Operand 4767 states and 8142 transitions. [2024-11-22 01:55:47,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-22 01:55:47,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:47,341 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-22 01:55:47,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 01:55:47,341 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:47,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:47,341 INFO L85 PathProgramCache]: Analyzing trace with hash 2124344878, now seen corresponding path program 1 times [2024-11-22 01:55:47,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:47,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721981378] [2024-11-22 01:55:47,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:47,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:47,457 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-22 01:55:47,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:47,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721981378] [2024-11-22 01:55:47,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721981378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:47,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:47,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:55:47,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149261755] [2024-11-22 01:55:47,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:47,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:55:47,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:47,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:55:47,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:47,459 INFO L87 Difference]: Start difference. First operand 4767 states and 8142 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:55:47,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:47,636 INFO L93 Difference]: Finished difference Result 11563 states and 19891 transitions. [2024-11-22 01:55:47,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:55:47,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 155 [2024-11-22 01:55:47,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:47,700 INFO L225 Difference]: With dead ends: 11563 [2024-11-22 01:55:47,700 INFO L226 Difference]: Without dead ends: 7618 [2024-11-22 01:55:47,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:47,726 INFO L432 NwaCegarLoop]: 646 mSDtfsCounter, 131 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1261 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 [2024-11-22 01:55:47,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1261 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:47,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7618 states. [2024-11-22 01:55:48,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7618 to 7610. [2024-11-22 01:55:48,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7610 states, 6324 states have (on average 1.6448450347881087) internal successors, (10402), 6329 states have internal predecessors, (10402), 1257 states have call successors, (1257), 27 states have call predecessors, (1257), 28 states have return successors, (1372), 1253 states have call predecessors, (1372), 1254 states have call successors, (1372) [2024-11-22 01:55:48,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7610 states to 7610 states and 13031 transitions. [2024-11-22 01:55:48,247 INFO L78 Accepts]: Start accepts. Automaton has 7610 states and 13031 transitions. Word has length 155 [2024-11-22 01:55:48,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:48,248 INFO L471 AbstractCegarLoop]: Abstraction has 7610 states and 13031 transitions. [2024-11-22 01:55:48,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:55:48,249 INFO L276 IsEmpty]: Start isEmpty. Operand 7610 states and 13031 transitions. [2024-11-22 01:55:48,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-22 01:55:48,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:48,279 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:48,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 01:55:48,279 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:48,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:48,280 INFO L85 PathProgramCache]: Analyzing trace with hash 431580257, now seen corresponding path program 1 times [2024-11-22 01:55:48,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:48,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592413166] [2024-11-22 01:55:48,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:48,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:48,356 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:55:48,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:48,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592413166] [2024-11-22 01:55:48,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592413166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:48,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:48,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:55:48,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888993730] [2024-11-22 01:55:48,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:48,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:55:48,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:48,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:55:48,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:48,359 INFO L87 Difference]: Start difference. First operand 7610 states and 13031 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:48,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:48,689 INFO L93 Difference]: Finished difference Result 19178 states and 33056 transitions. [2024-11-22 01:55:48,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:55:48,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 137 [2024-11-22 01:55:48,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:48,761 INFO L225 Difference]: With dead ends: 19178 [2024-11-22 01:55:48,761 INFO L226 Difference]: Without dead ends: 12792 [2024-11-22 01:55:48,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:48,794 INFO L432 NwaCegarLoop]: 626 mSDtfsCounter, 129 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1244 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 [2024-11-22 01:55:48,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1244 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:48,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12792 states. [2024-11-22 01:55:49,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12792 to 12784. [2024-11-22 01:55:49,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12784 states, 10676 states have (on average 1.6452791307605845) internal successors, (17565), 10681 states have internal predecessors, (17565), 2079 states have call successors, (2079), 27 states have call predecessors, (2079), 28 states have return successors, (2272), 2075 states have call predecessors, (2272), 2076 states have call successors, (2272) [2024-11-22 01:55:49,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12784 states to 12784 states and 21916 transitions. [2024-11-22 01:55:49,422 INFO L78 Accepts]: Start accepts. Automaton has 12784 states and 21916 transitions. Word has length 137 [2024-11-22 01:55:49,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:49,422 INFO L471 AbstractCegarLoop]: Abstraction has 12784 states and 21916 transitions. [2024-11-22 01:55:49,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:49,423 INFO L276 IsEmpty]: Start isEmpty. Operand 12784 states and 21916 transitions. [2024-11-22 01:55:49,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-22 01:55:49,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:49,461 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:49,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 01:55:49,462 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:49,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:49,462 INFO L85 PathProgramCache]: Analyzing trace with hash -370000626, now seen corresponding path program 1 times [2024-11-22 01:55:49,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:49,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545818691] [2024-11-22 01:55:49,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:49,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:49,534 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:55:49,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:49,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545818691] [2024-11-22 01:55:49,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545818691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:49,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:49,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:55:49,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523737690] [2024-11-22 01:55:49,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:49,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:55:49,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:49,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:55:49,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:49,538 INFO L87 Difference]: Start difference. First operand 12784 states and 21916 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:50,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:50,231 INFO L93 Difference]: Finished difference Result 30661 states and 52475 transitions. [2024-11-22 01:55:50,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:55:50,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 138 [2024-11-22 01:55:50,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:50,348 INFO L225 Difference]: With dead ends: 30661 [2024-11-22 01:55:50,348 INFO L226 Difference]: Without dead ends: 20105 [2024-11-22 01:55:50,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:50,400 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 127 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1214 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 [2024-11-22 01:55:50,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 1214 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:50,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20105 states. [2024-11-22 01:55:51,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20105 to 20097. [2024-11-22 01:55:51,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20097 states, 16786 states have (on average 1.6210532586679376) internal successors, (27211), 16791 states have internal predecessors, (27211), 3282 states have call successors, (3282), 27 states have call predecessors, (3282), 28 states have return successors, (3619), 3278 states have call predecessors, (3619), 3279 states have call successors, (3619) [2024-11-22 01:55:51,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20097 states to 20097 states and 34112 transitions. [2024-11-22 01:55:51,563 INFO L78 Accepts]: Start accepts. Automaton has 20097 states and 34112 transitions. Word has length 138 [2024-11-22 01:55:51,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:51,564 INFO L471 AbstractCegarLoop]: Abstraction has 20097 states and 34112 transitions. [2024-11-22 01:55:51,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:51,564 INFO L276 IsEmpty]: Start isEmpty. Operand 20097 states and 34112 transitions. [2024-11-22 01:55:51,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-22 01:55:51,598 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:51,598 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-22 01:55:51,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 01:55:51,599 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:51,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:51,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1876260714, now seen corresponding path program 1 times [2024-11-22 01:55:51,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:51,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639522410] [2024-11-22 01:55:51,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:51,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:51,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:51,666 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-22 01:55:51,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:51,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639522410] [2024-11-22 01:55:51,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639522410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:51,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:51,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:55:51,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927897978] [2024-11-22 01:55:51,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:51,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:55:51,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:51,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:55:51,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:51,669 INFO L87 Difference]: Start difference. First operand 20097 states and 34112 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:55:52,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:52,812 INFO L93 Difference]: Finished difference Result 53103 states and 90469 transitions. [2024-11-22 01:55:52,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:55:52,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 158 [2024-11-22 01:55:52,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:52,992 INFO L225 Difference]: With dead ends: 53103 [2024-11-22 01:55:52,992 INFO L226 Difference]: Without dead ends: 35911 [2024-11-22 01:55:53,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:53,042 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 125 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1242 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 [2024-11-22 01:55:53,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1242 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:53,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35911 states. [2024-11-22 01:55:54,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35911 to 35903. [2024-11-22 01:55:54,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35903 states, 30142 states have (on average 1.6181076239134762) internal successors, (48773), 30147 states have internal predecessors, (48773), 5732 states have call successors, (5732), 27 states have call predecessors, (5732), 28 states have return successors, (6343), 5728 states have call predecessors, (6343), 5729 states have call successors, (6343) [2024-11-22 01:55:54,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35903 states to 35903 states and 60848 transitions. [2024-11-22 01:55:54,675 INFO L78 Accepts]: Start accepts. Automaton has 35903 states and 60848 transitions. Word has length 158 [2024-11-22 01:55:54,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:54,677 INFO L471 AbstractCegarLoop]: Abstraction has 35903 states and 60848 transitions. [2024-11-22 01:55:54,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:55:54,677 INFO L276 IsEmpty]: Start isEmpty. Operand 35903 states and 60848 transitions. [2024-11-22 01:55:55,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-22 01:55:55,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:55,021 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-22 01:55:55,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 01:55:55,022 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:55,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:55,023 INFO L85 PathProgramCache]: Analyzing trace with hash -413874250, now seen corresponding path program 1 times [2024-11-22 01:55:55,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:55,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260396829] [2024-11-22 01:55:55,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:55,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:55,092 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-22 01:55:55,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:55,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260396829] [2024-11-22 01:55:55,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260396829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:55,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:55,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:55:55,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445685616] [2024-11-22 01:55:55,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:55,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:55:55,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:55,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:55:55,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:55,095 INFO L87 Difference]: Start difference. First operand 35903 states and 60848 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:55:57,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:57,042 INFO L93 Difference]: Finished difference Result 97950 states and 166496 transitions. [2024-11-22 01:55:57,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:55:57,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 159 [2024-11-22 01:55:57,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:57,413 INFO L225 Difference]: With dead ends: 97950 [2024-11-22 01:55:57,413 INFO L226 Difference]: Without dead ends: 65908 [2024-11-22 01:55:57,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:57,506 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 123 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1242 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 [2024-11-22 01:55:57,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1242 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:57,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65908 states. [2024-11-22 01:56:00,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65908 to 65900. [2024-11-22 01:56:00,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65900 states, 55626 states have (on average 1.6141013195268399) internal successors, (89786), 55631 states have internal predecessors, (89786), 10245 states have call successors, (10245), 27 states have call predecessors, (10245), 28 states have return successors, (11388), 10241 states have call predecessors, (11388), 10242 states have call successors, (11388) [2024-11-22 01:56:00,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65900 states to 65900 states and 111419 transitions. [2024-11-22 01:56:00,526 INFO L78 Accepts]: Start accepts. Automaton has 65900 states and 111419 transitions. Word has length 159 [2024-11-22 01:56:00,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:00,528 INFO L471 AbstractCegarLoop]: Abstraction has 65900 states and 111419 transitions. [2024-11-22 01:56:00,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:56:00,528 INFO L276 IsEmpty]: Start isEmpty. Operand 65900 states and 111419 transitions. [2024-11-22 01:56:00,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 01:56:00,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:00,575 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-22 01:56:00,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 01:56:00,575 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:00,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:00,576 INFO L85 PathProgramCache]: Analyzing trace with hash -370702518, now seen corresponding path program 1 times [2024-11-22 01:56:00,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:00,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098735566] [2024-11-22 01:56:00,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:00,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:00,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:00,652 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-22 01:56:00,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:00,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098735566] [2024-11-22 01:56:00,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098735566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:00,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:00,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:56:00,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79935708] [2024-11-22 01:56:00,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:00,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:00,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:00,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:00,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:00,655 INFO L87 Difference]: Start difference. First operand 65900 states and 111419 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:56:03,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:03,452 INFO L93 Difference]: Finished difference Result 123611 states and 209360 transitions. [2024-11-22 01:56:03,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:03,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 160 [2024-11-22 01:56:03,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:04,160 INFO L225 Difference]: With dead ends: 123611 [2024-11-22 01:56:04,160 INFO L226 Difference]: Without dead ends: 123396 [2024-11-22 01:56:04,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:04,247 INFO L432 NwaCegarLoop]: 633 mSDtfsCounter, 118 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1256 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:04,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1256 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:04,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123396 states. [2024-11-22 01:56:08,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123396 to 123388. [2024-11-22 01:56:08,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123388 states, 104746 states have (on average 1.6090160960800413) internal successors, (168538), 104751 states have internal predecessors, (168538), 18613 states have call successors, (18613), 27 states have call predecessors, (18613), 28 states have return successors, (20802), 18609 states have call predecessors, (20802), 18610 states have call successors, (20802) [2024-11-22 01:56:08,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123388 states to 123388 states and 207953 transitions. [2024-11-22 01:56:08,934 INFO L78 Accepts]: Start accepts. Automaton has 123388 states and 207953 transitions. Word has length 160 [2024-11-22 01:56:08,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:08,934 INFO L471 AbstractCegarLoop]: Abstraction has 123388 states and 207953 transitions. [2024-11-22 01:56:08,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:56:08,935 INFO L276 IsEmpty]: Start isEmpty. Operand 123388 states and 207953 transitions. [2024-11-22 01:56:08,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-22 01:56:08,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:08,986 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-22 01:56:08,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 01:56:08,987 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:08,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:08,987 INFO L85 PathProgramCache]: Analyzing trace with hash -651476235, now seen corresponding path program 1 times [2024-11-22 01:56:08,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:08,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908626677] [2024-11-22 01:56:08,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:08,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:09,147 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-22 01:56:09,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:09,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908626677] [2024-11-22 01:56:09,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908626677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:09,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:09,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:56:09,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244959030] [2024-11-22 01:56:09,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:09,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:56:09,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:09,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:56:09,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:56:09,152 INFO L87 Difference]: Start difference. First operand 123388 states and 207953 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:56:14,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:14,428 INFO L93 Difference]: Finished difference Result 237128 states and 401284 transitions. [2024-11-22 01:56:14,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 01:56:14,429 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 161 [2024-11-22 01:56:14,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:15,788 INFO L225 Difference]: With dead ends: 237128 [2024-11-22 01:56:15,788 INFO L226 Difference]: Without dead ends: 236921 [2024-11-22 01:56:16,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:56:16,256 INFO L432 NwaCegarLoop]: 682 mSDtfsCounter, 570 mSDsluCounter, 2496 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 3178 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:16,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 3178 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 01:56:16,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236921 states. [2024-11-22 01:56:23,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236921 to 236911. [2024-11-22 01:56:23,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236911 states, 201132 states have (on average 1.6123590477895113) internal successors, (324297), 201083 states have internal predecessors, (324297), 35726 states have call successors, (35726), 50 states have call predecessors, (35726), 52 states have return successors, (39007), 35777 states have call predecessors, (39007), 35722 states have call successors, (39007) [2024-11-22 01:56:25,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236911 states to 236911 states and 399030 transitions. [2024-11-22 01:56:25,578 INFO L78 Accepts]: Start accepts. Automaton has 236911 states and 399030 transitions. Word has length 161 [2024-11-22 01:56:25,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:25,578 INFO L471 AbstractCegarLoop]: Abstraction has 236911 states and 399030 transitions. [2024-11-22 01:56:25,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:56:25,579 INFO L276 IsEmpty]: Start isEmpty. Operand 236911 states and 399030 transitions. [2024-11-22 01:56:25,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-22 01:56:25,630 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:25,630 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:25,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 01:56:25,631 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:25,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:25,631 INFO L85 PathProgramCache]: Analyzing trace with hash 631341845, now seen corresponding path program 1 times [2024-11-22 01:56:25,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:25,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251718229] [2024-11-22 01:56:25,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:25,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:25,903 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:56:25,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:25,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251718229] [2024-11-22 01:56:25,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251718229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:25,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:25,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:56:25,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5227177] [2024-11-22 01:56:25,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:25,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:56:25,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:25,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:56:25,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:56:25,905 INFO L87 Difference]: Start difference. First operand 236911 states and 399030 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14)