./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product33.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 78f09f881cef26d11456f7baabcb58a727aa2f4d67cef56365b42a1e169c7203 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 21:55:23,739 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 21:55:23,797 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 21:55:23,803 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 21:55:23,804 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 21:55:23,826 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 21:55:23,827 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 21:55:23,827 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 21:55:23,828 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 21:55:23,828 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 21:55:23,828 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 21:55:23,829 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 21:55:23,829 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 21:55:23,829 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 21:55:23,830 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 21:55:23,830 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 21:55:23,830 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 21:55:23,831 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 21:55:23,831 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 21:55:23,831 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 21:55:23,832 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 21:55:23,832 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 21:55:23,832 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 21:55:23,833 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 21:55:23,833 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 21:55:23,833 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 21:55:23,834 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 21:55:23,834 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 21:55:23,834 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 21:55:23,834 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 21:55:23,835 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 21:55:23,835 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 21:55:23,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 21:55:23,836 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 21:55:23,836 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 21:55:23,836 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 21:55:23,837 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 21:55:23,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 21:55:23,837 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 21:55:23,837 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 21:55:23,837 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 21:55:23,838 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 21:55:23,838 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78f09f881cef26d11456f7baabcb58a727aa2f4d67cef56365b42a1e169c7203 [2024-11-19 21:55:24,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 21:55:24,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 21:55:24,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 21:55:24,036 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 21:55:24,037 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 21:55:24,038 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product33.cil.c [2024-11-19 21:55:25,220 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 21:55:25,510 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 21:55:25,511 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product33.cil.c [2024-11-19 21:55:25,530 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c73719af/28703dceff8d411185a94baf966b903c/FLAG7b7c0ed15 [2024-11-19 21:55:25,819 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c73719af/28703dceff8d411185a94baf966b903c [2024-11-19 21:55:25,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 21:55:25,822 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 21:55:25,823 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 21:55:25,823 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 21:55:25,827 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 21:55:25,828 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:55:25" (1/1) ... [2024-11-19 21:55:25,828 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a97b164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:25, skipping insertion in model container [2024-11-19 21:55:25,828 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:55:25" (1/1) ... [2024-11-19 21:55:25,887 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 21:55:26,309 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_product33.cil.c[65706,65719] [2024-11-19 21:55:26,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 21:55:26,339 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 21:55:26,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-11-19 21:55:26,348 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [375] [2024-11-19 21:55:26,348 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [787] [2024-11-19 21:55:26,348 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1858] [2024-11-19 21:55:26,348 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1893] [2024-11-19 21:55:26,349 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2031] [2024-11-19 21:55:26,349 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2397] [2024-11-19 21:55:26,349 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2616] [2024-11-19 21:55:26,349 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [3009] [2024-11-19 21:55:26,349 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [3026] [2024-11-19 21:55:26,349 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3085] [2024-11-19 21:55:26,435 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_product33.cil.c[65706,65719] [2024-11-19 21:55:26,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 21:55:26,462 INFO L204 MainTranslator]: Completed translation [2024-11-19 21:55:26,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:26 WrapperNode [2024-11-19 21:55:26,463 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 21:55:26,463 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 21:55:26,464 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 21:55:26,464 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 21:55:26,469 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:26" (1/1) ... [2024-11-19 21:55:26,488 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:26" (1/1) ... [2024-11-19 21:55:26,529 INFO L138 Inliner]: procedures = 135, calls = 219, calls flagged for inlining = 65, calls inlined = 60, statements flattened = 1111 [2024-11-19 21:55:26,533 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 21:55:26,534 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 21:55:26,534 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 21:55:26,534 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 21:55:26,543 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:26" (1/1) ... [2024-11-19 21:55:26,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:26" (1/1) ... [2024-11-19 21:55:26,549 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:26" (1/1) ... [2024-11-19 21:55:26,573 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]. [2024-11-19 21:55:26,574 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:26" (1/1) ... [2024-11-19 21:55:26,575 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:26" (1/1) ... [2024-11-19 21:55:26,590 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:26" (1/1) ... [2024-11-19 21:55:26,602 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:26" (1/1) ... [2024-11-19 21:55:26,605 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:26" (1/1) ... [2024-11-19 21:55:26,608 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:26" (1/1) ... [2024-11-19 21:55:26,614 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 21:55:26,615 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 21:55:26,615 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 21:55:26,615 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 21:55:26,616 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:26" (1/1) ... [2024-11-19 21:55:26,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 21:55:26,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:55:26,653 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) [2024-11-19 21:55:26,656 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 [2024-11-19 21:55:26,693 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-19 21:55:26,693 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-19 21:55:26,693 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-19 21:55:26,694 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-19 21:55:26,694 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-19 21:55:26,694 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-19 21:55:26,694 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-19 21:55:26,695 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-19 21:55:26,695 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-19 21:55:26,695 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-19 21:55:26,695 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-19 21:55:26,695 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-19 21:55:26,695 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-19 21:55:26,696 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-19 21:55:26,696 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-19 21:55:26,696 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-19 21:55:26,696 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-19 21:55:26,697 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-19 21:55:26,698 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-19 21:55:26,698 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-19 21:55:26,698 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-19 21:55:26,698 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-19 21:55:26,699 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-19 21:55:26,699 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-19 21:55:26,699 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-19 21:55:26,699 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-19 21:55:26,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 21:55:26,699 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-19 21:55:26,700 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-19 21:55:26,700 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-19 21:55:26,700 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-19 21:55:26,700 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-19 21:55:26,700 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-19 21:55:26,700 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-19 21:55:26,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-19 21:55:26,700 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-19 21:55:26,700 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-19 21:55:26,701 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-19 21:55:26,701 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-19 21:55:26,701 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-19 21:55:26,701 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-19 21:55:26,701 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-19 21:55:26,701 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-19 21:55:26,701 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-19 21:55:26,701 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-19 21:55:26,701 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-19 21:55:26,702 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-19 21:55:26,702 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-19 21:55:26,702 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-19 21:55:26,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 21:55:26,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 21:55:26,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 21:55:26,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 21:55:26,703 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-19 21:55:26,703 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-19 21:55:26,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 21:55:26,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 21:55:26,881 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 21:55:26,883 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 21:55:27,613 INFO L? ?]: Removed 507 outVars from TransFormulas that were not future-live. [2024-11-19 21:55:27,614 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 21:55:27,633 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 21:55:27,633 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 21:55:27,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:55:27 BoogieIcfgContainer [2024-11-19 21:55:27,633 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 21:55:27,635 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 21:55:27,635 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 21:55:27,637 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 21:55:27,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:55:25" (1/3) ... [2024-11-19 21:55:27,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545fd640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:55:27, skipping insertion in model container [2024-11-19 21:55:27,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:55:26" (2/3) ... [2024-11-19 21:55:27,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545fd640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:55:27, skipping insertion in model container [2024-11-19 21:55:27,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:55:27" (3/3) ... [2024-11-19 21:55:27,640 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product33.cil.c [2024-11-19 21:55:27,651 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 21:55:27,652 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 21:55:27,713 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 21:55:27,720 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;@2f0a5b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 21:55:27,721 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 21:55:27,727 INFO L276 IsEmpty]: Start isEmpty. Operand has 399 states, 304 states have (on average 1.4967105263157894) internal successors, (455), 310 states have internal predecessors, (455), 68 states have call successors, (68), 25 states have call predecessors, (68), 25 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-19 21:55:27,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-19 21:55:27,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:55:27,745 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:55:27,746 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:55:27,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:55:27,749 INFO L85 PathProgramCache]: Analyzing trace with hash 934398129, now seen corresponding path program 1 times [2024-11-19 21:55:27,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:55:27,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643597255] [2024-11-19 21:55:27,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:55:27,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:55:27,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:28,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 21:55:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:28,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:55:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:28,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:55:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:28,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 21:55:28,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:28,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 21:55:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:28,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 21:55:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:28,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-19 21:55:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:28,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-19 21:55:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:28,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 21:55:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:28,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-19 21:55:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:28,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-19 21:55:28,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:28,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-19 21:55:28,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:28,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-19 21:55:28,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:28,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-19 21:55:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:28,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-19 21:55:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:28,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-19 21:55:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:28,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-19 21:55:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:28,419 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-19 21:55:28,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:55:28,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643597255] [2024-11-19 21:55:28,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643597255] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:55:28,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108101450] [2024-11-19 21:55:28,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:55:28,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:55:28,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:55:28,424 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) [2024-11-19 21:55:28,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 21:55:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:28,689 INFO L255 TraceCheckSpWp]: Trace formula consists of 1156 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 21:55:28,718 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:55:28,737 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-19 21:55:28,737 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:55:28,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108101450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:55:28,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:55:28,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-19 21:55:28,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52306329] [2024-11-19 21:55:28,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:55:28,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 21:55:28,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:55:28,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 21:55:28,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:55:28,771 INFO L87 Difference]: Start difference. First operand has 399 states, 304 states have (on average 1.4967105263157894) internal successors, (455), 310 states have internal predecessors, (455), 68 states have call successors, (68), 25 states have call predecessors, (68), 25 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:55:28,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:55:28,839 INFO L93 Difference]: Finished difference Result 638 states and 928 transitions. [2024-11-19 21:55:28,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 21:55:28,841 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 130 [2024-11-19 21:55:28,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:55:28,854 INFO L225 Difference]: With dead ends: 638 [2024-11-19 21:55:28,854 INFO L226 Difference]: Without dead ends: 391 [2024-11-19 21:55:28,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:55:28,861 INFO L432 NwaCegarLoop]: 585 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, 585 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 [2024-11-19 21:55:28,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:55:28,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-19 21:55:28,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2024-11-19 21:55:28,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 298 states have (on average 1.4899328859060403) internal successors, (444), 302 states have internal predecessors, (444), 68 states have call successors, (68), 25 states have call predecessors, (68), 24 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-19 21:55:28,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 577 transitions. [2024-11-19 21:55:28,930 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 577 transitions. Word has length 130 [2024-11-19 21:55:28,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:55:28,931 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 577 transitions. [2024-11-19 21:55:28,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:55:28,932 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 577 transitions. [2024-11-19 21:55:28,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-19 21:55:28,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:55:28,935 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:55:28,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 21:55:29,139 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 [2024-11-19 21:55:29,140 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:55:29,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:55:29,140 INFO L85 PathProgramCache]: Analyzing trace with hash -495222900, now seen corresponding path program 1 times [2024-11-19 21:55:29,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:55:29,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281787064] [2024-11-19 21:55:29,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:55:29,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:55:29,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:29,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 21:55:29,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:29,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:55:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:29,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:55:29,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:29,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 21:55:29,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:29,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 21:55:29,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:29,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 21:55:29,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:29,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-19 21:55:29,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:29,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:55:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:29,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-19 21:55:29,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:29,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-19 21:55:29,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:29,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-19 21:55:29,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:29,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 21:55:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:29,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-19 21:55:29,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:29,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-19 21:55:29,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:29,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-19 21:55:29,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:29,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-19 21:55:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:29,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-19 21:55:29,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:29,412 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-19 21:55:29,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:55:29,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281787064] [2024-11-19 21:55:29,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281787064] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:55:29,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938077954] [2024-11-19 21:55:29,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:55:29,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:55:29,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:55:29,415 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) [2024-11-19 21:55:29,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 21:55:29,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:29,692 INFO L255 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 21:55:29,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:55:29,727 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-19 21:55:29,728 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:55:29,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938077954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:55:29,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:55:29,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-19 21:55:29,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94918842] [2024-11-19 21:55:29,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:55:29,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 21:55:29,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:55:29,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 21:55:29,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:55:29,730 INFO L87 Difference]: Start difference. First operand 391 states and 577 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:55:29,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:55:29,769 INFO L93 Difference]: Finished difference Result 627 states and 905 transitions. [2024-11-19 21:55:29,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 21:55:29,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2024-11-19 21:55:29,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:55:29,772 INFO L225 Difference]: With dead ends: 627 [2024-11-19 21:55:29,772 INFO L226 Difference]: Without dead ends: 394 [2024-11-19 21:55:29,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:55:29,777 INFO L432 NwaCegarLoop]: 575 mSDtfsCounter, 1 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1148 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 [2024-11-19 21:55:29,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1148 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:55:29,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-19 21:55:29,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 393. [2024-11-19 21:55:29,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 300 states have (on average 1.4866666666666666) internal successors, (446), 304 states have internal predecessors, (446), 68 states have call successors, (68), 25 states have call predecessors, (68), 24 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-19 21:55:29,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 579 transitions. [2024-11-19 21:55:29,805 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 579 transitions. Word has length 131 [2024-11-19 21:55:29,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:55:29,805 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 579 transitions. [2024-11-19 21:55:29,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:55:29,807 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 579 transitions. [2024-11-19 21:55:29,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 21:55:29,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:55:29,811 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:55:29,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 21:55:30,011 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 [2024-11-19 21:55:30,011 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:55:30,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:55:30,012 INFO L85 PathProgramCache]: Analyzing trace with hash 137254758, now seen corresponding path program 1 times [2024-11-19 21:55:30,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:55:30,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54349121] [2024-11-19 21:55:30,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:55:30,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:55:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 21:55:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:55:30,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:55:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 21:55:30,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 21:55:30,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 21:55:30,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-19 21:55:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-19 21:55:30,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-19 21:55:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-19 21:55:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-19 21:55:30,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-19 21:55:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-19 21:55:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-19 21:55:30,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-19 21:55:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-19 21:55:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-19 21:55:30,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,213 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-19 21:55:30,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:55:30,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54349121] [2024-11-19 21:55:30,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54349121] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:55:30,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008503917] [2024-11-19 21:55:30,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:55:30,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:55:30,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:55:30,216 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) [2024-11-19 21:55:30,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 21:55:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,479 INFO L255 TraceCheckSpWp]: Trace formula consists of 1182 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 21:55:30,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:55:30,509 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-19 21:55:30,509 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:55:30,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008503917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:55:30,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:55:30,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-19 21:55:30,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119851041] [2024-11-19 21:55:30,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:55:30,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 21:55:30,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:55:30,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 21:55:30,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:55:30,512 INFO L87 Difference]: Start difference. First operand 393 states and 579 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:55:30,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:55:30,548 INFO L93 Difference]: Finished difference Result 821 states and 1225 transitions. [2024-11-19 21:55:30,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 21:55:30,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 140 [2024-11-19 21:55:30,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:55:30,556 INFO L225 Difference]: With dead ends: 821 [2024-11-19 21:55:30,556 INFO L226 Difference]: Without dead ends: 455 [2024-11-19 21:55:30,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:55:30,558 INFO L432 NwaCegarLoop]: 585 mSDtfsCounter, 115 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1114 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 [2024-11-19 21:55:30,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 1114 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:55:30,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-11-19 21:55:30,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 447. [2024-11-19 21:55:30,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 343 states have (on average 1.5043731778425655) internal successors, (516), 347 states have internal predecessors, (516), 79 states have call successors, (79), 25 states have call predecessors, (79), 24 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-19 21:55:30,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 671 transitions. [2024-11-19 21:55:30,586 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 671 transitions. Word has length 140 [2024-11-19 21:55:30,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:55:30,587 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 671 transitions. [2024-11-19 21:55:30,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:55:30,587 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 671 transitions. [2024-11-19 21:55:30,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-19 21:55:30,589 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:55:30,589 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:55:30,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 21:55:30,789 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 [2024-11-19 21:55:30,790 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:55:30,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:55:30,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1328410079, now seen corresponding path program 1 times [2024-11-19 21:55:30,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:55:30,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610377214] [2024-11-19 21:55:30,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:55:30,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:55:30,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 21:55:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:55:30,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:55:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 21:55:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 21:55:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 21:55:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-19 21:55:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-19 21:55:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-19 21:55:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-19 21:55:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-19 21:55:30,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-19 21:55:30,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-19 21:55:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-19 21:55:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-19 21:55:30,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-19 21:55:30,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-19 21:55:30,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:30,963 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-19 21:55:30,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:55:30,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610377214] [2024-11-19 21:55:30,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610377214] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:55:30,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887740039] [2024-11-19 21:55:30,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:55:30,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:55:30,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:55:30,967 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) [2024-11-19 21:55:30,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 21:55:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:31,202 INFO L255 TraceCheckSpWp]: Trace formula consists of 1187 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 21:55:31,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:55:31,258 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 21:55:31,258 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:55:31,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887740039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:55:31,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:55:31,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-19 21:55:31,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150743680] [2024-11-19 21:55:31,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:55:31,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:55:31,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:55:31,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:55:31,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-19 21:55:31,260 INFO L87 Difference]: Start difference. First operand 447 states and 671 transitions. Second operand has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 21:55:31,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:55:31,323 INFO L93 Difference]: Finished difference Result 885 states and 1332 transitions. [2024-11-19 21:55:31,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:55:31,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 141 [2024-11-19 21:55:31,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:55:31,326 INFO L225 Difference]: With dead ends: 885 [2024-11-19 21:55:31,326 INFO L226 Difference]: Without dead ends: 449 [2024-11-19 21:55:31,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-19 21:55:31,329 INFO L432 NwaCegarLoop]: 569 mSDtfsCounter, 2 mSDsluCounter, 1696 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2265 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 [2024-11-19 21:55:31,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2265 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:55:31,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-11-19 21:55:31,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2024-11-19 21:55:31,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 344 states have (on average 1.502906976744186) internal successors, (517), 349 states have internal predecessors, (517), 79 states have call successors, (79), 25 states have call predecessors, (79), 25 states have return successors, (78), 76 states have call predecessors, (78), 76 states have call successors, (78) [2024-11-19 21:55:31,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 674 transitions. [2024-11-19 21:55:31,348 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 674 transitions. Word has length 141 [2024-11-19 21:55:31,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:55:31,348 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 674 transitions. [2024-11-19 21:55:31,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 21:55:31,348 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 674 transitions. [2024-11-19 21:55:31,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-19 21:55:31,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:55:31,350 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:55:31,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 21:55:31,550 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 [2024-11-19 21:55:31,551 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:55:31,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:55:31,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1321383937, now seen corresponding path program 1 times [2024-11-19 21:55:31,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:55:31,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457691059] [2024-11-19 21:55:31,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:55:31,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:55:31,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:31,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 21:55:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:31,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:55:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:31,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:55:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:31,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 21:55:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:31,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-19 21:55:31,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:31,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 21:55:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:31,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-19 21:55:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:31,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-19 21:55:31,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:31,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-19 21:55:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:31,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-19 21:55:31,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:31,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 21:55:31,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:31,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-19 21:55:31,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:31,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-19 21:55:31,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:31,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-19 21:55:31,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:31,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-19 21:55:31,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:31,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-19 21:55:31,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:31,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-19 21:55:31,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:31,734 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-19 21:55:31,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:55:31,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457691059] [2024-11-19 21:55:31,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457691059] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:55:31,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368582444] [2024-11-19 21:55:31,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:55:31,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:55:31,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:55:31,737 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) [2024-11-19 21:55:31,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 21:55:31,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:31,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 1188 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 21:55:31,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:55:32,009 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 21:55:32,009 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:55:32,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368582444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:55:32,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:55:32,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-19 21:55:32,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28394313] [2024-11-19 21:55:32,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:55:32,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:55:32,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:55:32,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:55:32,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-19 21:55:32,011 INFO L87 Difference]: Start difference. First operand 449 states and 674 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 21:55:32,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:55:32,055 INFO L93 Difference]: Finished difference Result 887 states and 1337 transitions. [2024-11-19 21:55:32,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:55:32,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 142 [2024-11-19 21:55:32,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:55:32,057 INFO L225 Difference]: With dead ends: 887 [2024-11-19 21:55:32,057 INFO L226 Difference]: Without dead ends: 451 [2024-11-19 21:55:32,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-19 21:55:32,059 INFO L432 NwaCegarLoop]: 567 mSDtfsCounter, 2 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2251 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 [2024-11-19 21:55:32,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2251 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:55:32,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-11-19 21:55:32,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 451. [2024-11-19 21:55:32,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 345 states have (on average 1.5014492753623188) internal successors, (518), 351 states have internal predecessors, (518), 79 states have call successors, (79), 25 states have call predecessors, (79), 26 states have return successors, (83), 76 states have call predecessors, (83), 76 states have call successors, (83) [2024-11-19 21:55:32,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 680 transitions. [2024-11-19 21:55:32,075 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 680 transitions. Word has length 142 [2024-11-19 21:55:32,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:55:32,075 INFO L471 AbstractCegarLoop]: Abstraction has 451 states and 680 transitions. [2024-11-19 21:55:32,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 21:55:32,076 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 680 transitions. [2024-11-19 21:55:32,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-19 21:55:32,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:55:32,078 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:55:32,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 21:55:32,278 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 [2024-11-19 21:55:32,279 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:55:32,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:55:32,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1944210333, now seen corresponding path program 1 times [2024-11-19 21:55:32,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:55:32,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806652558] [2024-11-19 21:55:32,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:55:32,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:55:32,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:32,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 21:55:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:32,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:55:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:32,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:55:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:32,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 21:55:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:32,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 21:55:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:32,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-19 21:55:32,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:32,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-19 21:55:32,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:32,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 21:55:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:32,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-19 21:55:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:32,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-19 21:55:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:32,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-19 21:55:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:32,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-19 21:55:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:32,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-19 21:55:32,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:32,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-19 21:55:32,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:32,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-19 21:55:32,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:32,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-19 21:55:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:32,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-19 21:55:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:32,467 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-19 21:55:32,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:55:32,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806652558] [2024-11-19 21:55:32,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806652558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:55:32,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:55:32,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 21:55:32,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486431653] [2024-11-19 21:55:32,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:55:32,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 21:55:32,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:55:32,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 21:55:32,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:55:32,469 INFO L87 Difference]: Start difference. First operand 451 states and 680 transitions. Second operand has 9 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 21:55:34,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:55:34,524 INFO L93 Difference]: Finished difference Result 1101 states and 1671 transitions. [2024-11-19 21:55:34,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 21:55:34,525 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 143 [2024-11-19 21:55:34,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:55:34,529 INFO L225 Difference]: With dead ends: 1101 [2024-11-19 21:55:34,529 INFO L226 Difference]: Without dead ends: 673 [2024-11-19 21:55:34,531 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-19 21:55:34,533 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 1290 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 3274 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1291 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 3727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 3274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-19 21:55:34,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1291 Valid, 1172 Invalid, 3727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 3274 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-19 21:55:34,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2024-11-19 21:55:34,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 451. [2024-11-19 21:55:34,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 345 states have (on average 1.5014492753623188) internal successors, (518), 351 states have internal predecessors, (518), 79 states have call successors, (79), 25 states have call predecessors, (79), 26 states have return successors, (82), 76 states have call predecessors, (82), 76 states have call successors, (82) [2024-11-19 21:55:34,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 679 transitions. [2024-11-19 21:55:34,589 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 679 transitions. Word has length 143 [2024-11-19 21:55:34,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:55:34,590 INFO L471 AbstractCegarLoop]: Abstraction has 451 states and 679 transitions. [2024-11-19 21:55:34,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 21:55:34,591 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 679 transitions. [2024-11-19 21:55:34,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 21:55:34,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:55:34,594 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:55:34,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 21:55:34,594 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:55:34,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:55:34,595 INFO L85 PathProgramCache]: Analyzing trace with hash 312254365, now seen corresponding path program 2 times [2024-11-19 21:55:34,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:55:34,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39668324] [2024-11-19 21:55:34,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:55:34,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:55:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:34,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 21:55:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:34,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:55:34,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:34,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:55:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:34,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 21:55:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:34,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 21:55:34,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:34,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-19 21:55:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:34,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 21:55:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:34,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-19 21:55:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:34,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-19 21:55:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:34,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-19 21:55:34,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:34,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-19 21:55:34,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:34,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-19 21:55:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:34,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-19 21:55:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:34,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-19 21:55:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:34,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-19 21:55:34,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:34,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-19 21:55:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:34,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-19 21:55:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:34,788 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-19 21:55:34,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:55:34,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39668324] [2024-11-19 21:55:34,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39668324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:55:34,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:55:34,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 21:55:34,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769436191] [2024-11-19 21:55:34,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:55:34,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 21:55:34,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:55:34,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 21:55:34,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:55:34,789 INFO L87 Difference]: Start difference. First operand 451 states and 679 transitions. Second operand has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 21:55:36,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:55:36,796 INFO L93 Difference]: Finished difference Result 1103 states and 1674 transitions. [2024-11-19 21:55:36,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 21:55:36,796 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 144 [2024-11-19 21:55:36,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:55:36,800 INFO L225 Difference]: With dead ends: 1103 [2024-11-19 21:55:36,801 INFO L226 Difference]: Without dead ends: 675 [2024-11-19 21:55:36,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-19 21:55:36,803 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 1286 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 3280 mSolverCounterSat, 454 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 3734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 454 IncrementalHoareTripleChecker+Valid, 3280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-19 21:55:36,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 1172 Invalid, 3734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [454 Valid, 3280 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-19 21:55:36,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-11-19 21:55:36,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 453. [2024-11-19 21:55:36,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 346 states have (on average 1.5) internal successors, (519), 353 states have internal predecessors, (519), 79 states have call successors, (79), 25 states have call predecessors, (79), 27 states have return successors, (84), 76 states have call predecessors, (84), 76 states have call successors, (84) [2024-11-19 21:55:36,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 682 transitions. [2024-11-19 21:55:36,830 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 682 transitions. Word has length 144 [2024-11-19 21:55:36,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:55:36,830 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 682 transitions. [2024-11-19 21:55:36,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 21:55:36,830 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 682 transitions. [2024-11-19 21:55:36,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-19 21:55:36,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:55:36,832 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:55:36,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 21:55:36,833 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:55:36,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:55:36,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1335234526, now seen corresponding path program 1 times [2024-11-19 21:55:36,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:55:36,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292758836] [2024-11-19 21:55:36,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:55:36,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:55:36,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:36,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 21:55:36,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:36,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:55:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:36,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:55:36,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:36,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 21:55:36,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:36,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 21:55:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:36,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 21:55:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:37,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-19 21:55:37,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:37,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-19 21:55:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:37,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-19 21:55:37,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:37,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-19 21:55:37,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:37,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-19 21:55:37,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:37,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-19 21:55:37,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:37,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-19 21:55:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:37,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-19 21:55:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:37,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-19 21:55:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:37,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-19 21:55:37,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:37,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-19 21:55:37,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:37,050 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-19 21:55:37,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:55:37,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292758836] [2024-11-19 21:55:37,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292758836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:55:37,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:55:37,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 21:55:37,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504489756] [2024-11-19 21:55:37,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:55:37,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 21:55:37,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:55:37,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 21:55:37,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-19 21:55:37,052 INFO L87 Difference]: Start difference. First operand 453 states and 682 transitions. Second operand has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-19 21:55:39,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:55:39,602 INFO L93 Difference]: Finished difference Result 1101 states and 1669 transitions. [2024-11-19 21:55:39,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 21:55:39,603 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 145 [2024-11-19 21:55:39,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:55:39,606 INFO L225 Difference]: With dead ends: 1101 [2024-11-19 21:55:39,606 INFO L226 Difference]: Without dead ends: 675 [2024-11-19 21:55:39,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-19 21:55:39,608 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 1290 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 5437 mSolverCounterSat, 460 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1291 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 5897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 460 IncrementalHoareTripleChecker+Valid, 5437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-19 21:55:39,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1291 Valid, 1623 Invalid, 5897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [460 Valid, 5437 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-19 21:55:39,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-11-19 21:55:39,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 453. [2024-11-19 21:55:39,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 346 states have (on average 1.5) internal successors, (519), 353 states have internal predecessors, (519), 79 states have call successors, (79), 25 states have call predecessors, (79), 27 states have return successors, (83), 76 states have call predecessors, (83), 76 states have call successors, (83) [2024-11-19 21:55:39,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 681 transitions. [2024-11-19 21:55:39,632 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 681 transitions. Word has length 145 [2024-11-19 21:55:39,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:55:39,632 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 681 transitions. [2024-11-19 21:55:39,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-19 21:55:39,632 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 681 transitions. [2024-11-19 21:55:39,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-19 21:55:39,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:55:39,634 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:55:39,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 21:55:39,634 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:55:39,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:55:39,635 INFO L85 PathProgramCache]: Analyzing trace with hash 569769714, now seen corresponding path program 2 times [2024-11-19 21:55:39,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:55:39,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611404687] [2024-11-19 21:55:39,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:55:39,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:55:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:39,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 21:55:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:39,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:55:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:39,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:55:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:39,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 21:55:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:39,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 21:55:39,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:39,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 21:55:39,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:39,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-19 21:55:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:39,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-19 21:55:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:39,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-19 21:55:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:39,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-19 21:55:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:39,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-19 21:55:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:39,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-19 21:55:39,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:39,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-19 21:55:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:39,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-19 21:55:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:39,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-19 21:55:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:39,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-19 21:55:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:39,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-19 21:55:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:39,881 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-19 21:55:39,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:55:39,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611404687] [2024-11-19 21:55:39,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611404687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:55:39,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:55:39,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 21:55:39,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058092889] [2024-11-19 21:55:39,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:55:39,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 21:55:39,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:55:39,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 21:55:39,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-19 21:55:39,883 INFO L87 Difference]: Start difference. First operand 453 states and 681 transitions. Second operand has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-19 21:55:42,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:55:42,251 INFO L93 Difference]: Finished difference Result 1103 states and 1675 transitions. [2024-11-19 21:55:42,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 21:55:42,252 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 146 [2024-11-19 21:55:42,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:55:42,255 INFO L225 Difference]: With dead ends: 1103 [2024-11-19 21:55:42,255 INFO L226 Difference]: Without dead ends: 677 [2024-11-19 21:55:42,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-19 21:55:42,256 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 1286 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 5456 mSolverCounterSat, 457 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1288 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 5913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 5456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:55:42,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1288 Valid, 1623 Invalid, 5913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [457 Valid, 5456 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-19 21:55:42,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2024-11-19 21:55:42,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 455. [2024-11-19 21:55:42,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 347 states have (on average 1.4985590778097984) internal successors, (520), 355 states have internal predecessors, (520), 79 states have call successors, (79), 25 states have call predecessors, (79), 28 states have return successors, (88), 76 states have call predecessors, (88), 76 states have call successors, (88) [2024-11-19 21:55:42,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 687 transitions. [2024-11-19 21:55:42,280 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 687 transitions. Word has length 146 [2024-11-19 21:55:42,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:55:42,281 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 687 transitions. [2024-11-19 21:55:42,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-19 21:55:42,281 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 687 transitions. [2024-11-19 21:55:42,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 21:55:42,282 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:55:42,282 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:55:42,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 21:55:42,282 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:55:42,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:55:42,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1179069207, now seen corresponding path program 1 times [2024-11-19 21:55:42,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:55:42,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6789005] [2024-11-19 21:55:42,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:55:42,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:55:42,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:42,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 21:55:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:42,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:55:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:42,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:55:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:42,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 21:55:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:42,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 21:55:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:42,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 21:55:42,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:42,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-19 21:55:42,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:42,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-19 21:55:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:42,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-19 21:55:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:42,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-19 21:55:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:42,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-19 21:55:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:42,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-19 21:55:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:42,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-19 21:55:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:42,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-19 21:55:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:42,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-19 21:55:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:42,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-19 21:55:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:42,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-19 21:55:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:42,417 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-19 21:55:42,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:55:42,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6789005] [2024-11-19 21:55:42,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6789005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:55:42,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:55:42,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 21:55:42,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50634740] [2024-11-19 21:55:42,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:55:42,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 21:55:42,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:55:42,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 21:55:42,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:55:42,419 INFO L87 Difference]: Start difference. First operand 455 states and 687 transitions. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 21:55:44,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:55:44,019 INFO L93 Difference]: Finished difference Result 1105 states and 1678 transitions. [2024-11-19 21:55:44,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 21:55:44,020 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 147 [2024-11-19 21:55:44,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:55:44,023 INFO L225 Difference]: With dead ends: 1105 [2024-11-19 21:55:44,024 INFO L226 Difference]: Without dead ends: 677 [2024-11-19 21:55:44,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-19 21:55:44,025 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 1288 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 3264 mSolverCounterSat, 458 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1289 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 3722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 458 IncrementalHoareTripleChecker+Valid, 3264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-19 21:55:44,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1289 Valid, 1163 Invalid, 3722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [458 Valid, 3264 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-19 21:55:44,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2024-11-19 21:55:44,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 455. [2024-11-19 21:55:44,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 347 states have (on average 1.4985590778097984) internal successors, (520), 355 states have internal predecessors, (520), 79 states have call successors, (79), 25 states have call predecessors, (79), 28 states have return successors, (88), 76 states have call predecessors, (88), 76 states have call successors, (88) [2024-11-19 21:55:44,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 687 transitions. [2024-11-19 21:55:44,068 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 687 transitions. Word has length 147 [2024-11-19 21:55:44,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:55:44,068 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 687 transitions. [2024-11-19 21:55:44,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 21:55:44,068 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 687 transitions. [2024-11-19 21:55:44,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 21:55:44,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:55:44,070 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:55:44,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 21:55:44,070 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:55:44,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:55:44,071 INFO L85 PathProgramCache]: Analyzing trace with hash 854324839, now seen corresponding path program 1 times [2024-11-19 21:55:44,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:55:44,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006892366] [2024-11-19 21:55:44,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:55:44,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:55:44,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:44,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 21:55:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:44,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:55:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:44,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:55:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:44,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 21:55:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:44,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 21:55:44,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:44,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 21:55:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:44,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-19 21:55:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:44,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-19 21:55:44,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:44,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-19 21:55:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:44,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-19 21:55:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:44,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-19 21:55:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:44,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-19 21:55:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:44,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-19 21:55:44,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:44,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-19 21:55:44,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:44,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-19 21:55:44,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:44,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-19 21:55:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:44,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-19 21:55:44,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:44,261 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-19 21:55:44,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:55:44,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006892366] [2024-11-19 21:55:44,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006892366] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:55:44,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257307893] [2024-11-19 21:55:44,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:55:44,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:55:44,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:55:44,263 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) [2024-11-19 21:55:44,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 21:55:44,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:44,493 INFO L255 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 21:55:44,495 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:55:44,528 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-19 21:55:44,528 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 21:55:44,616 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-19 21:55:44,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257307893] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 21:55:44,616 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 21:55:44,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-11-19 21:55:44,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838025432] [2024-11-19 21:55:44,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 21:55:44,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 21:55:44,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:55:44,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 21:55:44,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-19 21:55:44,619 INFO L87 Difference]: Start difference. First operand 455 states and 687 transitions. Second operand has 15 states, 14 states have (on average 10.571428571428571) internal successors, (148), 11 states have internal predecessors, (148), 4 states have call successors, (40), 6 states have call predecessors, (40), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) [2024-11-19 21:55:47,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:55:47,275 INFO L93 Difference]: Finished difference Result 1478 states and 2346 transitions. [2024-11-19 21:55:47,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-19 21:55:47,276 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.571428571428571) internal successors, (148), 11 states have internal predecessors, (148), 4 states have call successors, (40), 6 states have call predecessors, (40), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) Word has length 147 [2024-11-19 21:55:47,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:55:47,281 INFO L225 Difference]: With dead ends: 1478 [2024-11-19 21:55:47,281 INFO L226 Difference]: Without dead ends: 1054 [2024-11-19 21:55:47,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-11-19 21:55:47,283 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 2424 mSDsluCounter, 1721 mSDsCounter, 0 mSdLazyCounter, 6562 mSolverCounterSat, 803 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2441 SdHoareTripleChecker+Valid, 1895 SdHoareTripleChecker+Invalid, 7365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 803 IncrementalHoareTripleChecker+Valid, 6562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-19 21:55:47,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2441 Valid, 1895 Invalid, 7365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [803 Valid, 6562 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-19 21:55:47,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2024-11-19 21:55:47,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 808. [2024-11-19 21:55:47,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 636 states have (on average 1.5581761006289307) internal successors, (991), 644 states have internal predecessors, (991), 143 states have call successors, (143), 25 states have call predecessors, (143), 28 states have return successors, (162), 140 states have call predecessors, (162), 140 states have call successors, (162) [2024-11-19 21:55:47,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1296 transitions. [2024-11-19 21:55:47,319 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1296 transitions. Word has length 147 [2024-11-19 21:55:47,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:55:47,319 INFO L471 AbstractCegarLoop]: Abstraction has 808 states and 1296 transitions. [2024-11-19 21:55:47,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.571428571428571) internal successors, (148), 11 states have internal predecessors, (148), 4 states have call successors, (40), 6 states have call predecessors, (40), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) [2024-11-19 21:55:47,320 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1296 transitions. [2024-11-19 21:55:47,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 21:55:47,322 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:55:47,322 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:55:47,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-19 21:55:47,522 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 [2024-11-19 21:55:47,523 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:55:47,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:55:47,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1309760517, now seen corresponding path program 1 times [2024-11-19 21:55:47,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:55:47,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834701729] [2024-11-19 21:55:47,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:55:47,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:55:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:47,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 21:55:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:47,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:55:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:47,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:55:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:47,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 21:55:47,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:47,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 21:55:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:47,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 21:55:47,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:47,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-19 21:55:47,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:47,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-19 21:55:47,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:47,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-19 21:55:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:47,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-19 21:55:47,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:47,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-19 21:55:47,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:47,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-19 21:55:47,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:47,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-19 21:55:47,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:47,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-19 21:55:47,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:47,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-19 21:55:47,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:47,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-19 21:55:47,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:47,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-19 21:55:47,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:47,615 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-19 21:55:47,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:55:47,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834701729] [2024-11-19 21:55:47,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834701729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:55:47,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:55:47,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 21:55:47,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130985716] [2024-11-19 21:55:47,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:55:47,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:55:47,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:55:47,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:55:47,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:55:47,617 INFO L87 Difference]: Start difference. First operand 808 states and 1296 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:55:48,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:55:48,858 INFO L93 Difference]: Finished difference Result 2093 states and 3425 transitions. [2024-11-19 21:55:48,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 21:55:48,860 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2024-11-19 21:55:48,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:55:48,865 INFO L225 Difference]: With dead ends: 2093 [2024-11-19 21:55:48,865 INFO L226 Difference]: Without dead ends: 1363 [2024-11-19 21:55:48,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 21:55:48,867 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 1397 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 1887 mSolverCounterSat, 510 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1412 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 2397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 510 IncrementalHoareTripleChecker+Valid, 1887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:55:48,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1412 Valid, 896 Invalid, 2397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [510 Valid, 1887 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 21:55:48,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2024-11-19 21:55:48,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1133. [2024-11-19 21:55:48,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1133 states, 897 states have (on average 1.5785953177257526) internal successors, (1416), 905 states have internal predecessors, (1416), 207 states have call successors, (207), 25 states have call predecessors, (207), 28 states have return successors, (236), 204 states have call predecessors, (236), 204 states have call successors, (236) [2024-11-19 21:55:48,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1859 transitions. [2024-11-19 21:55:48,909 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1859 transitions. Word has length 150 [2024-11-19 21:55:48,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:55:48,909 INFO L471 AbstractCegarLoop]: Abstraction has 1133 states and 1859 transitions. [2024-11-19 21:55:48,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:55:48,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1859 transitions. [2024-11-19 21:55:48,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-19 21:55:48,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:55:48,913 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:55:48,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 21:55:48,914 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:55:48,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:55:48,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1865631147, now seen corresponding path program 1 times [2024-11-19 21:55:48,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:55:48,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455173278] [2024-11-19 21:55:48,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:55:48,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:55:48,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:48,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 21:55:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:48,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:55:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:48,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:55:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:48,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 21:55:48,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:48,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 21:55:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:48,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 21:55:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:48,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-19 21:55:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:48,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-19 21:55:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:48,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-19 21:55:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:48,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-19 21:55:48,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:48,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-19 21:55:48,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:48,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-19 21:55:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:48,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-19 21:55:48,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:48,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-19 21:55:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:49,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-19 21:55:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:49,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-19 21:55:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:49,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-19 21:55:49,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:49,004 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-19 21:55:49,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:55:49,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455173278] [2024-11-19 21:55:49,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455173278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:55:49,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:55:49,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 21:55:49,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197238050] [2024-11-19 21:55:49,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:55:49,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:55:49,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:55:49,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:55:49,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:55:49,006 INFO L87 Difference]: Start difference. First operand 1133 states and 1859 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:55:50,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:55:50,186 INFO L93 Difference]: Finished difference Result 2898 states and 4809 transitions. [2024-11-19 21:55:50,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 21:55:50,187 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 151 [2024-11-19 21:55:50,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:55:50,193 INFO L225 Difference]: With dead ends: 2898 [2024-11-19 21:55:50,193 INFO L226 Difference]: Without dead ends: 1896 [2024-11-19 21:55:50,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 21:55:50,196 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 1395 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1841 mSolverCounterSat, 514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1410 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 2355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 1841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:55:50,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1410 Valid, 854 Invalid, 2355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [514 Valid, 1841 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 21:55:50,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1896 states. [2024-11-19 21:55:50,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1896 to 1666. [2024-11-19 21:55:50,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1666 states, 1335 states have (on average 1.5895131086142322) internal successors, (2122), 1343 states have internal predecessors, (2122), 302 states have call successors, (302), 25 states have call predecessors, (302), 28 states have return successors, (331), 299 states have call predecessors, (331), 299 states have call successors, (331) [2024-11-19 21:55:50,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 2755 transitions. [2024-11-19 21:55:50,253 INFO L78 Accepts]: Start accepts. Automaton has 1666 states and 2755 transitions. Word has length 151 [2024-11-19 21:55:50,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:55:50,253 INFO L471 AbstractCegarLoop]: Abstraction has 1666 states and 2755 transitions. [2024-11-19 21:55:50,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:55:50,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1666 states and 2755 transitions. [2024-11-19 21:55:50,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-19 21:55:50,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:55:50,259 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:55:50,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 21:55:50,260 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:55:50,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:55:50,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1427240759, now seen corresponding path program 1 times [2024-11-19 21:55:50,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:55:50,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126133188] [2024-11-19 21:55:50,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:55:50,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:55:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:50,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 21:55:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:50,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:55:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:50,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:55:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:50,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 21:55:50,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:50,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 21:55:50,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:50,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 21:55:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:50,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-19 21:55:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:50,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-19 21:55:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:50,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-19 21:55:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:50,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-19 21:55:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:50,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-19 21:55:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:50,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-19 21:55:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:50,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-19 21:55:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:50,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-19 21:55:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:50,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-19 21:55:50,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:50,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-19 21:55:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:50,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-19 21:55:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:50,338 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-19 21:55:50,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:55:50,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126133188] [2024-11-19 21:55:50,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126133188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:55:50,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:55:50,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 21:55:50,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456301127] [2024-11-19 21:55:50,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:55:50,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:55:50,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:55:50,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:55:50,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:55:50,340 INFO L87 Difference]: Start difference. First operand 1666 states and 2755 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:55:51,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:55:51,720 INFO L93 Difference]: Finished difference Result 4105 states and 6895 transitions. [2024-11-19 21:55:51,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 21:55:51,720 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2024-11-19 21:55:51,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:55:51,730 INFO L225 Difference]: With dead ends: 4105 [2024-11-19 21:55:51,730 INFO L226 Difference]: Without dead ends: 2705 [2024-11-19 21:55:51,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 21:55:51,733 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 1393 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 1855 mSolverCounterSat, 505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 2360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 1855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 21:55:51,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1408 Valid, 855 Invalid, 2360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [505 Valid, 1855 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 21:55:51,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2024-11-19 21:55:51,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 2475. [2024-11-19 21:55:51,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2475 states, 2021 states have (on average 1.5977238990598714) internal successors, (3229), 2029 states have internal predecessors, (3229), 425 states have call successors, (425), 25 states have call predecessors, (425), 28 states have return successors, (470), 422 states have call predecessors, (470), 422 states have call successors, (470) [2024-11-19 21:55:51,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2475 states to 2475 states and 4124 transitions. [2024-11-19 21:55:51,817 INFO L78 Accepts]: Start accepts. Automaton has 2475 states and 4124 transitions. Word has length 152 [2024-11-19 21:55:51,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:55:51,817 INFO L471 AbstractCegarLoop]: Abstraction has 2475 states and 4124 transitions. [2024-11-19 21:55:51,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:55:51,817 INFO L276 IsEmpty]: Start isEmpty. Operand 2475 states and 4124 transitions. [2024-11-19 21:55:51,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 21:55:51,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:55:51,828 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:55:51,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 21:55:51,828 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:55:51,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:55:51,829 INFO L85 PathProgramCache]: Analyzing trace with hash 2068329642, now seen corresponding path program 1 times [2024-11-19 21:55:51,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:55:51,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138127461] [2024-11-19 21:55:51,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:55:51,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:55:51,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:51,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 21:55:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:51,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:55:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:51,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:55:51,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:51,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 21:55:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:51,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 21:55:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:51,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 21:55:51,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:51,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-19 21:55:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:51,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-19 21:55:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:51,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-19 21:55:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:51,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-19 21:55:51,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:51,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-19 21:55:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:51,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-19 21:55:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:51,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-19 21:55:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:51,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-19 21:55:51,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:51,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-19 21:55:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:51,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-19 21:55:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:51,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-19 21:55:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:51,915 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-19 21:55:51,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:55:51,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138127461] [2024-11-19 21:55:51,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138127461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:55:51,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:55:51,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 21:55:51,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726372796] [2024-11-19 21:55:51,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:55:51,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:55:51,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:55:51,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:55:51,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:55:51,917 INFO L87 Difference]: Start difference. First operand 2475 states and 4124 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:55:53,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:55:53,377 INFO L93 Difference]: Finished difference Result 5989 states and 10155 transitions. [2024-11-19 21:55:53,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 21:55:53,377 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2024-11-19 21:55:53,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:55:53,395 INFO L225 Difference]: With dead ends: 5989 [2024-11-19 21:55:53,396 INFO L226 Difference]: Without dead ends: 3999 [2024-11-19 21:55:53,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 21:55:53,403 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 1391 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 1838 mSolverCounterSat, 506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 2344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 1838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 21:55:53,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1406 Valid, 852 Invalid, 2344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [506 Valid, 1838 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 21:55:53,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3999 states. [2024-11-19 21:55:53,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3999 to 3769. [2024-11-19 21:55:53,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3769 states, 3136 states have (on average 1.6029974489795917) internal successors, (5027), 3144 states have internal predecessors, (5027), 604 states have call successors, (604), 25 states have call predecessors, (604), 28 states have return successors, (675), 601 states have call predecessors, (675), 601 states have call successors, (675) [2024-11-19 21:55:53,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3769 states to 3769 states and 6306 transitions. [2024-11-19 21:55:53,569 INFO L78 Accepts]: Start accepts. Automaton has 3769 states and 6306 transitions. Word has length 153 [2024-11-19 21:55:53,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:55:53,570 INFO L471 AbstractCegarLoop]: Abstraction has 3769 states and 6306 transitions. [2024-11-19 21:55:53,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:55:53,570 INFO L276 IsEmpty]: Start isEmpty. Operand 3769 states and 6306 transitions. [2024-11-19 21:55:53,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-19 21:55:53,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:55:53,585 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:55:53,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 21:55:53,585 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:55:53,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:55:53,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1290829051, now seen corresponding path program 1 times [2024-11-19 21:55:53,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:55:53,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835116863] [2024-11-19 21:55:53,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:55:53,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:55:53,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:53,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 21:55:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:53,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:55:53,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:53,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:55:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:53,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 21:55:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:53,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 21:55:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:53,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 21:55:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:53,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-19 21:55:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:53,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-19 21:55:53,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:53,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-19 21:55:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:53,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-19 21:55:53,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:53,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-19 21:55:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:53,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-19 21:55:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:53,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-19 21:55:53,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:53,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-19 21:55:53,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:53,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-19 21:55:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:53,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-19 21:55:53,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:53,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-19 21:55:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:53,690 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-19 21:55:53,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:55:53,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835116863] [2024-11-19 21:55:53,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835116863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:55:53,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:55:53,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 21:55:53,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212083487] [2024-11-19 21:55:53,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:55:53,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:55:53,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:55:53,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:55:53,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:55:53,692 INFO L87 Difference]: Start difference. First operand 3769 states and 6306 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:55:55,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:55:55,121 INFO L93 Difference]: Finished difference Result 9092 states and 15519 transitions. [2024-11-19 21:55:55,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 21:55:55,122 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 154 [2024-11-19 21:55:55,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:55:55,144 INFO L225 Difference]: With dead ends: 9092 [2024-11-19 21:55:55,144 INFO L226 Difference]: Without dead ends: 6140 [2024-11-19 21:55:55,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 21:55:55,152 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 1389 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 1860 mSolverCounterSat, 513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1404 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 2373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 1860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:55:55,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1404 Valid, 861 Invalid, 2373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [513 Valid, 1860 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 21:55:55,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6140 states. [2024-11-19 21:55:55,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6140 to 5910. [2024-11-19 21:55:55,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 4901 states have (on average 1.5982452560701899) internal successors, (7833), 4909 states have internal predecessors, (7833), 980 states have call successors, (980), 25 states have call predecessors, (980), 28 states have return successors, (1095), 977 states have call predecessors, (1095), 977 states have call successors, (1095) [2024-11-19 21:55:55,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 9908 transitions. [2024-11-19 21:55:55,353 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 9908 transitions. Word has length 154 [2024-11-19 21:55:55,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:55:55,353 INFO L471 AbstractCegarLoop]: Abstraction has 5910 states and 9908 transitions. [2024-11-19 21:55:55,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:55:55,354 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 9908 transitions. [2024-11-19 21:55:55,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 21:55:55,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:55:55,370 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:55:55,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 21:55:55,371 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:55:55,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:55:55,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1460660966, now seen corresponding path program 1 times [2024-11-19 21:55:55,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:55:55,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233082875] [2024-11-19 21:55:55,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:55:55,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:55:55,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:55,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 21:55:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:55,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:55:55,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:55,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:55:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:55,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 21:55:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:55,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 21:55:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:55,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 21:55:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:55,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-19 21:55:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:55,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-19 21:55:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:55,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-19 21:55:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:55,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-19 21:55:55,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:55,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-19 21:55:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:55,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-19 21:55:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:55,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-19 21:55:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:55,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-19 21:55:55,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:55,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-19 21:55:55,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:55,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-19 21:55:55,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:55,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-19 21:55:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:55,449 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-19 21:55:55,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:55:55,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233082875] [2024-11-19 21:55:55,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233082875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:55:55,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:55:55,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 21:55:55,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089825414] [2024-11-19 21:55:55,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:55:55,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:55:55,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:55:55,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:55:55,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:55:55,452 INFO L87 Difference]: Start difference. First operand 5910 states and 9908 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:55:56,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:55:56,753 INFO L93 Difference]: Finished difference Result 14709 states and 25132 transitions. [2024-11-19 21:55:56,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 21:55:56,754 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 155 [2024-11-19 21:55:56,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:55:56,785 INFO L225 Difference]: With dead ends: 14709 [2024-11-19 21:55:56,785 INFO L226 Difference]: Without dead ends: 10018 [2024-11-19 21:55:56,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 21:55:56,798 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 1387 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1848 mSolverCounterSat, 514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1402 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 2362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 1848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:55:56,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1402 Valid, 854 Invalid, 2362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [514 Valid, 1848 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 21:55:56,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10018 states. [2024-11-19 21:55:57,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10018 to 9788. [2024-11-19 21:55:57,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9788 states, 8173 states have (on average 1.5969656184999388) internal successors, (13052), 8181 states have internal predecessors, (13052), 1586 states have call successors, (1586), 25 states have call predecessors, (1586), 28 states have return successors, (1779), 1583 states have call predecessors, (1779), 1583 states have call successors, (1779) [2024-11-19 21:55:57,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9788 states to 9788 states and 16417 transitions. [2024-11-19 21:55:57,112 INFO L78 Accepts]: Start accepts. Automaton has 9788 states and 16417 transitions. Word has length 155 [2024-11-19 21:55:57,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:55:57,112 INFO L471 AbstractCegarLoop]: Abstraction has 9788 states and 16417 transitions. [2024-11-19 21:55:57,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:55:57,116 INFO L276 IsEmpty]: Start isEmpty. Operand 9788 states and 16417 transitions. [2024-11-19 21:55:57,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-19 21:55:57,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:55:57,139 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:55:57,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 21:55:57,139 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:55:57,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:55:57,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1462413773, now seen corresponding path program 1 times [2024-11-19 21:55:57,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:55:57,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700319504] [2024-11-19 21:55:57,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:55:57,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:55:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:57,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 21:55:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:57,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:55:57,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:57,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:55:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:57,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 21:55:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:57,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 21:55:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:57,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 21:55:57,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:57,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-19 21:55:57,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:57,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-19 21:55:57,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:57,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 21:55:57,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:57,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-19 21:55:57,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:57,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-19 21:55:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:57,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-19 21:55:57,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:57,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-19 21:55:57,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:57,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-19 21:55:57,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:57,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-19 21:55:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:57,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-19 21:55:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:57,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-19 21:55:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:57,220 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-19 21:55:57,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:55:57,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700319504] [2024-11-19 21:55:57,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700319504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:55:57,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:55:57,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 21:55:57,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546102569] [2024-11-19 21:55:57,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:55:57,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:55:57,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:55:57,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:55:57,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:55:57,222 INFO L87 Difference]: Start difference. First operand 9788 states and 16417 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:55:58,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:55:58,747 INFO L93 Difference]: Finished difference Result 25418 states and 43413 transitions. [2024-11-19 21:55:58,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 21:55:58,747 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 156 [2024-11-19 21:55:58,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:55:58,786 INFO L225 Difference]: With dead ends: 25418 [2024-11-19 21:55:58,787 INFO L226 Difference]: Without dead ends: 17331 [2024-11-19 21:55:58,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 21:55:58,801 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 1385 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 1873 mSolverCounterSat, 506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1400 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 2379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 1873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:55:58,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1400 Valid, 923 Invalid, 2379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [506 Valid, 1873 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 21:55:58,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17331 states. [2024-11-19 21:55:59,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17331 to 17101. [2024-11-19 21:55:59,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17101 states, 14283 states have (on average 1.589161940768746) internal successors, (22698), 14291 states have internal predecessors, (22698), 2789 states have call successors, (2789), 25 states have call predecessors, (2789), 28 states have return successors, (3126), 2786 states have call predecessors, (3126), 2786 states have call successors, (3126) [2024-11-19 21:55:59,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17101 states to 17101 states and 28613 transitions. [2024-11-19 21:55:59,273 INFO L78 Accepts]: Start accepts. Automaton has 17101 states and 28613 transitions. Word has length 156 [2024-11-19 21:55:59,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:55:59,273 INFO L471 AbstractCegarLoop]: Abstraction has 17101 states and 28613 transitions. [2024-11-19 21:55:59,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:55:59,274 INFO L276 IsEmpty]: Start isEmpty. Operand 17101 states and 28613 transitions. [2024-11-19 21:55:59,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-19 21:55:59,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:55:59,301 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:55:59,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 21:55:59,301 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:55:59,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:55:59,302 INFO L85 PathProgramCache]: Analyzing trace with hash 342301893, now seen corresponding path program 1 times [2024-11-19 21:55:59,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:55:59,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591902611] [2024-11-19 21:55:59,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:55:59,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:55:59,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:59,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 21:55:59,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:59,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:55:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:59,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:55:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:59,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 21:55:59,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:59,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 21:55:59,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:59,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 21:55:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:59,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-19 21:55:59,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:59,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-19 21:55:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:59,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-19 21:55:59,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:59,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-19 21:55:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:59,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-19 21:55:59,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:59,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-19 21:55:59,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:59,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-19 21:55:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:59,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-19 21:55:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:59,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-19 21:55:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:59,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-19 21:55:59,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:59,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-19 21:55:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:55:59,381 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-19 21:55:59,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:55:59,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591902611] [2024-11-19 21:55:59,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591902611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:55:59,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:55:59,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 21:55:59,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759019366] [2024-11-19 21:55:59,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:55:59,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:55:59,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:55:59,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:55:59,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:55:59,383 INFO L87 Difference]: Start difference. First operand 17101 states and 28613 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:56:01,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:56:01,170 INFO L93 Difference]: Finished difference Result 45394 states and 77426 transitions. [2024-11-19 21:56:01,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 21:56:01,170 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 157 [2024-11-19 21:56:01,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:56:01,267 INFO L225 Difference]: With dead ends: 45394 [2024-11-19 21:56:01,267 INFO L226 Difference]: Without dead ends: 30671 [2024-11-19 21:56:01,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 21:56:01,304 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 1383 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1847 mSolverCounterSat, 513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1398 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 2360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 1847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:56:01,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1398 Valid, 853 Invalid, 2360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [513 Valid, 1847 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 21:56:01,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30671 states. [2024-11-19 21:56:02,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30671 to 30441. [2024-11-19 21:56:02,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30441 states, 25584 states have (on average 1.5854049405878674) internal successors, (40561), 25592 states have internal predecessors, (40561), 4828 states have call successors, (4828), 25 states have call predecessors, (4828), 28 states have return successors, (5439), 4825 states have call predecessors, (5439), 4825 states have call successors, (5439) [2024-11-19 21:56:02,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30441 states to 30441 states and 50828 transitions. [2024-11-19 21:56:02,231 INFO L78 Accepts]: Start accepts. Automaton has 30441 states and 50828 transitions. Word has length 157 [2024-11-19 21:56:02,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:56:02,232 INFO L471 AbstractCegarLoop]: Abstraction has 30441 states and 50828 transitions. [2024-11-19 21:56:02,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:56:02,232 INFO L276 IsEmpty]: Start isEmpty. Operand 30441 states and 50828 transitions. [2024-11-19 21:56:02,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-19 21:56:02,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:56:02,269 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:56:02,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 21:56:02,270 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:56:02,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:56:02,270 INFO L85 PathProgramCache]: Analyzing trace with hash -57934421, now seen corresponding path program 1 times [2024-11-19 21:56:02,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:56:02,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465831655] [2024-11-19 21:56:02,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:56:02,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:56:02,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:02,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 21:56:02,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:02,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:56:02,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:02,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:56:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:02,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 21:56:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:02,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 21:56:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:02,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 21:56:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:02,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-19 21:56:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:02,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-19 21:56:02,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:02,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-19 21:56:02,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:02,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-19 21:56:02,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:02,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-19 21:56:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:02,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-19 21:56:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:02,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-19 21:56:02,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:02,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-19 21:56:02,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:02,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-19 21:56:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:02,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-19 21:56:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:02,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-19 21:56:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:02,350 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-19 21:56:02,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:56:02,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465831655] [2024-11-19 21:56:02,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465831655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:56:02,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:56:02,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 21:56:02,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625645658] [2024-11-19 21:56:02,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:56:02,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:56:02,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:56:02,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:56:02,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:56:02,352 INFO L87 Difference]: Start difference. First operand 30441 states and 50828 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:56:04,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:56:04,727 INFO L93 Difference]: Finished difference Result 83131 states and 140950 transitions. [2024-11-19 21:56:04,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 21:56:04,728 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 158 [2024-11-19 21:56:04,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:56:04,898 INFO L225 Difference]: With dead ends: 83131 [2024-11-19 21:56:04,898 INFO L226 Difference]: Without dead ends: 55880 [2024-11-19 21:56:04,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 21:56:04,963 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 1381 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 1846 mSolverCounterSat, 514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 2360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 1846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-19 21:56:04,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1396 Valid, 865 Invalid, 2360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [514 Valid, 1846 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-19 21:56:04,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55880 states. [2024-11-19 21:56:06,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55880 to 55650. [2024-11-19 21:56:06,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55650 states, 47078 states have (on average 1.5801860741747737) internal successors, (74392), 47086 states have internal predecessors, (74392), 8543 states have call successors, (8543), 25 states have call predecessors, (8543), 28 states have return successors, (9686), 8540 states have call predecessors, (9686), 8540 states have call successors, (9686) [2024-11-19 21:56:06,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55650 states to 55650 states and 92621 transitions. [2024-11-19 21:56:06,854 INFO L78 Accepts]: Start accepts. Automaton has 55650 states and 92621 transitions. Word has length 158 [2024-11-19 21:56:06,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:56:06,854 INFO L471 AbstractCegarLoop]: Abstraction has 55650 states and 92621 transitions. [2024-11-19 21:56:06,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:56:06,854 INFO L276 IsEmpty]: Start isEmpty. Operand 55650 states and 92621 transitions. [2024-11-19 21:56:06,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-19 21:56:06,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:56:06,903 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:56:06,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 21:56:06,903 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:56:06,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:56:06,904 INFO L85 PathProgramCache]: Analyzing trace with hash -2137987291, now seen corresponding path program 1 times [2024-11-19 21:56:06,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:56:06,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226130607] [2024-11-19 21:56:06,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:56:06,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:56:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:06,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 21:56:06,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:06,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:56:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:06,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:56:06,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:06,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 21:56:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:06,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 21:56:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:06,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 21:56:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:06,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-19 21:56:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:06,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-19 21:56:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:06,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-19 21:56:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:06,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-19 21:56:06,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:06,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-19 21:56:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:06,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-19 21:56:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:06,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-19 21:56:06,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:06,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-19 21:56:06,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:06,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-19 21:56:06,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:06,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-19 21:56:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:06,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-19 21:56:06,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:06,984 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-19 21:56:06,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:56:06,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226130607] [2024-11-19 21:56:06,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226130607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:56:06,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:56:06,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 21:56:06,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064700065] [2024-11-19 21:56:06,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:56:06,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:56:06,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:56:06,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:56:06,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:56:06,986 INFO L87 Difference]: Start difference. First operand 55650 states and 92621 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:56:10,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:56:10,190 INFO L93 Difference]: Finished difference Result 104187 states and 176936 transitions. [2024-11-19 21:56:10,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 21:56:10,191 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 159 [2024-11-19 21:56:10,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:56:10,522 INFO L225 Difference]: With dead ends: 104187 [2024-11-19 21:56:10,522 INFO L226 Difference]: Without dead ends: 103954 [2024-11-19 21:56:10,559 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 21:56:10,560 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 1376 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 1846 mSolverCounterSat, 509 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1390 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 2355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 509 IncrementalHoareTripleChecker+Valid, 1846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-19 21:56:10,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1390 Valid, 862 Invalid, 2355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [509 Valid, 1846 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-19 21:56:10,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103954 states. [2024-11-19 21:56:13,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103954 to 103724. [2024-11-19 21:56:13,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103724 states, 88353 states have (on average 1.573494957726393) internal successors, (139023), 88361 states have internal predecessors, (139023), 15342 states have call successors, (15342), 25 states have call predecessors, (15342), 28 states have return successors, (17531), 15339 states have call predecessors, (17531), 15339 states have call successors, (17531) [2024-11-19 21:56:14,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103724 states to 103724 states and 171896 transitions. [2024-11-19 21:56:14,229 INFO L78 Accepts]: Start accepts. Automaton has 103724 states and 171896 transitions. Word has length 159 [2024-11-19 21:56:14,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:56:14,230 INFO L471 AbstractCegarLoop]: Abstraction has 103724 states and 171896 transitions. [2024-11-19 21:56:14,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:56:14,230 INFO L276 IsEmpty]: Start isEmpty. Operand 103724 states and 171896 transitions. [2024-11-19 21:56:14,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-19 21:56:14,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:56:14,307 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:56:14,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 21:56:14,307 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:56:14,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:56:14,307 INFO L85 PathProgramCache]: Analyzing trace with hash -446230452, now seen corresponding path program 1 times [2024-11-19 21:56:14,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:56:14,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426511129] [2024-11-19 21:56:14,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:56:14,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:56:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:14,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 21:56:14,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:14,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:56:14,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:14,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 21:56:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:14,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 21:56:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:14,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 21:56:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:14,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 21:56:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:14,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-19 21:56:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:14,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-19 21:56:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:14,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-19 21:56:14,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:14,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-19 21:56:14,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:14,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-19 21:56:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:14,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-19 21:56:14,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:14,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-19 21:56:14,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:14,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-19 21:56:14,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:14,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-19 21:56:14,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:14,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-19 21:56:14,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:14,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-19 21:56:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:14,695 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-19 21:56:14,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:56:14,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426511129] [2024-11-19 21:56:14,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426511129] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:56:14,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136914833] [2024-11-19 21:56:14,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:56:14,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:56:14,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:56:14,700 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:56:14,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 21:56:14,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:56:14,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 1231 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 21:56:15,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:56:15,200 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-19 21:56:15,201 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 21:56:15,713 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-19 21:56:15,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136914833] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 21:56:15,713 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 21:56:15,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 9, 9] total 32 [2024-11-19 21:56:15,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969482853] [2024-11-19 21:56:15,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 21:56:15,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-19 21:56:15,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:56:15,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-19 21:56:15,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=914, Unknown=0, NotChecked=0, Total=992 [2024-11-19 21:56:15,715 INFO L87 Difference]: Start difference. First operand 103724 states and 171896 transitions. Second operand has 32 states, 30 states have (on average 8.333333333333334) internal successors, (250), 24 states have internal predecessors, (250), 9 states have call successors, (51), 12 states have call predecessors, (51), 12 states have return successors, (44), 11 states have call predecessors, (44), 9 states have call successors, (44) [2024-11-19 21:56:40,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:56:40,517 INFO L93 Difference]: Finished difference Result 415627 states and 721265 transitions. [2024-11-19 21:56:40,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2024-11-19 21:56:40,518 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 8.333333333333334) internal successors, (250), 24 states have internal predecessors, (250), 9 states have call successors, (51), 12 states have call predecessors, (51), 12 states have return successors, (44), 11 states have call predecessors, (44), 9 states have call successors, (44) Word has length 160 [2024-11-19 21:56:40,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:56:42,349 INFO L225 Difference]: With dead ends: 415627 [2024-11-19 21:56:42,350 INFO L226 Difference]: Without dead ends: 415398 [2024-11-19 21:56:42,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9961 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=3808, Invalid=25604, Unknown=0, NotChecked=0, Total=29412 [2024-11-19 21:56:42,492 INFO L432 NwaCegarLoop]: 435 mSDtfsCounter, 9543 mSDsluCounter, 8394 mSDsCounter, 0 mSdLazyCounter, 34895 mSolverCounterSat, 3593 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9555 SdHoareTripleChecker+Valid, 8829 SdHoareTripleChecker+Invalid, 38488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3593 IncrementalHoareTripleChecker+Valid, 34895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2024-11-19 21:56:42,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9555 Valid, 8829 Invalid, 38488 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3593 Valid, 34895 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2024-11-19 21:56:43,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415398 states.