./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_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 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_product19.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 0eb0a93133a0d165b4e13ef7269be4b8c3f0f81976a167102da919b09b6c6616 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 02:57:25,400 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 02:57:25,486 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 02:57:25,506 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 02:57:25,506 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 02:57:25,548 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 02:57:25,550 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 02:57:25,551 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 02:57:25,551 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 02:57:25,555 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 02:57:25,555 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 02:57:25,556 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 02:57:25,556 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 02:57:25,556 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 02:57:25,557 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 02:57:25,557 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 02:57:25,557 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 02:57:25,557 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 02:57:25,558 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 02:57:25,559 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 02:57:25,559 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 02:57:25,560 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 02:57:25,560 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 02:57:25,561 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 02:57:25,562 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 02:57:25,562 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 02:57:25,562 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 02:57:25,562 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 02:57:25,563 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 02:57:25,563 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 02:57:25,563 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 02:57:25,563 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 02:57:25,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 02:57:25,564 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 02:57:25,565 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 02:57:25,565 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 02:57:25,566 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 02:57:25,566 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 02:57:25,566 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 02:57:25,567 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 02:57:25,567 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 02:57:25,567 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 02:57:25,567 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0eb0a93133a0d165b4e13ef7269be4b8c3f0f81976a167102da919b09b6c6616 [2024-10-14 02:57:25,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 02:57:25,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 02:57:25,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 02:57:25,851 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 02:57:25,851 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 02:57:25,852 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product19.cil.c [2024-10-14 02:57:27,264 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 02:57:27,562 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 02:57:27,562 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product19.cil.c [2024-10-14 02:57:27,593 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a33c566c/3bccb38af7b14e30babc5633279e2f73/FLAG7b04fa79f [2024-10-14 02:57:27,609 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a33c566c/3bccb38af7b14e30babc5633279e2f73 [2024-10-14 02:57:27,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 02:57:27,612 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 02:57:27,614 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 02:57:27,615 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 02:57:27,621 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 02:57:27,622 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:57:27" (1/1) ... [2024-10-14 02:57:27,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d3e49ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:27, skipping insertion in model container [2024-10-14 02:57:27,624 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:57:27" (1/1) ... [2024-10-14 02:57:27,687 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 02:57:27,979 WARN L248 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_product19.cil.c[8336,8349] [2024-10-14 02:57:28,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 02:57:28,316 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 02:57:28,326 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2024-10-14 02:57:28,328 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [66] [2024-10-14 02:57:28,328 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [115] [2024-10-14 02:57:28,329 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [431] [2024-10-14 02:57:28,329 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [440] [2024-10-14 02:57:28,329 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [498] [2024-10-14 02:57:28,329 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [723] [2024-10-14 02:57:28,329 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [821] [2024-10-14 02:57:28,330 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1895] [2024-10-14 02:57:28,330 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2170] [2024-10-14 02:57:28,330 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2571] [2024-10-14 02:57:28,345 WARN L248 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_product19.cil.c[8336,8349] [2024-10-14 02:57:28,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 02:57:28,456 INFO L204 MainTranslator]: Completed translation [2024-10-14 02:57:28,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:28 WrapperNode [2024-10-14 02:57:28,457 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 02:57:28,458 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 02:57:28,458 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 02:57:28,458 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 02:57:28,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:28" (1/1) ... [2024-10-14 02:57:28,496 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:28" (1/1) ... [2024-10-14 02:57:28,540 INFO L138 Inliner]: procedures = 128, calls = 192, calls flagged for inlining = 58, calls inlined = 53, statements flattened = 979 [2024-10-14 02:57:28,541 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 02:57:28,541 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 02:57:28,541 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 02:57:28,542 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 02:57:28,559 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:28" (1/1) ... [2024-10-14 02:57:28,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:28" (1/1) ... [2024-10-14 02:57:28,565 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:28" (1/1) ... [2024-10-14 02:57:28,592 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]. [2024-10-14 02:57:28,592 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:28" (1/1) ... [2024-10-14 02:57:28,593 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:28" (1/1) ... [2024-10-14 02:57:28,611 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:28" (1/1) ... [2024-10-14 02:57:28,622 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:28" (1/1) ... [2024-10-14 02:57:28,627 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:28" (1/1) ... [2024-10-14 02:57:28,634 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:28" (1/1) ... [2024-10-14 02:57:28,648 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 02:57:28,650 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 02:57:28,650 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 02:57:28,650 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 02:57:28,652 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:28" (1/1) ... [2024-10-14 02:57:28,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 02:57:28,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:57:28,691 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) [2024-10-14 02:57:28,694 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 [2024-10-14 02:57:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-14 02:57:28,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-14 02:57:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-14 02:57:28,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-14 02:57:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-10-14 02:57:28,745 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-10-14 02:57:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-14 02:57:28,746 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-14 02:57:28,746 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-10-14 02:57:28,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-10-14 02:57:28,746 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-14 02:57:28,746 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-14 02:57:28,746 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-10-14 02:57:28,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-10-14 02:57:28,748 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-14 02:57:28,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-14 02:57:28,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 02:57:28,748 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-10-14 02:57:28,750 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-10-14 02:57:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-10-14 02:57:28,750 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-10-14 02:57:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-14 02:57:28,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-14 02:57:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-10-14 02:57:28,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-10-14 02:57:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-14 02:57:28,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-14 02:57:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-14 02:57:28,751 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-14 02:57:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-10-14 02:57:28,752 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-10-14 02:57:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-14 02:57:28,752 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-14 02:57:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-14 02:57:28,752 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-14 02:57:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-10-14 02:57:28,752 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-10-14 02:57:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 02:57:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 02:57:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 02:57:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-14 02:57:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-14 02:57:28,753 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-14 02:57:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 02:57:28,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 02:57:28,981 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 02:57:28,982 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 02:57:29,803 INFO L? ?]: Removed 433 outVars from TransFormulas that were not future-live. [2024-10-14 02:57:29,803 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 02:57:29,870 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 02:57:29,872 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 02:57:29,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:57:29 BoogieIcfgContainer [2024-10-14 02:57:29,872 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 02:57:29,875 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 02:57:29,876 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 02:57:29,879 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 02:57:29,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:57:27" (1/3) ... [2024-10-14 02:57:29,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ef79d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:57:29, skipping insertion in model container [2024-10-14 02:57:29,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:28" (2/3) ... [2024-10-14 02:57:29,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ef79d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:57:29, skipping insertion in model container [2024-10-14 02:57:29,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:57:29" (3/3) ... [2024-10-14 02:57:29,883 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product19.cil.c [2024-10-14 02:57:29,901 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 02:57:29,902 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 02:57:29,969 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 02:57:29,977 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;@700bc25b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 02:57:29,977 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 02:57:29,983 INFO L276 IsEmpty]: Start isEmpty. Operand has 294 states, 223 states have (on average 1.5874439461883407) internal successors, (354), 227 states have internal predecessors, (354), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2024-10-14 02:57:30,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-14 02:57:30,001 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:57:30,002 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:57:30,002 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:57:30,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:57:30,008 INFO L85 PathProgramCache]: Analyzing trace with hash -99307971, now seen corresponding path program 1 times [2024-10-14 02:57:30,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:57:30,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543612257] [2024-10-14 02:57:30,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:30,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:57:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:30,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:57:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:30,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:57:30,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:30,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:57:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:30,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:57:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:30,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 02:57:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:30,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 02:57:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:30,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 02:57:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:30,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 02:57:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:30,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 02:57:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:30,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 02:57:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:30,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 02:57:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:30,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 02:57:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:30,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 02:57:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:30,768 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-14 02:57:30,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:57:30,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543612257] [2024-10-14 02:57:30,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543612257] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:57:30,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620232670] [2024-10-14 02:57:30,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:30,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:57:30,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:57:30,772 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) [2024-10-14 02:57:30,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 02:57:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:31,136 INFO L255 TraceCheckSpWp]: Trace formula consists of 1001 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-14 02:57:31,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:57:31,169 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 02:57:31,171 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:57:31,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620232670] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:57:31,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:57:31,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-10-14 02:57:31,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096747298] [2024-10-14 02:57:31,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:57:31,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 02:57:31,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:57:31,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 02:57:31,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 02:57:31,212 INFO L87 Difference]: Start difference. First operand has 294 states, 223 states have (on average 1.5874439461883407) internal successors, (354), 227 states have internal predecessors, (354), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:57:31,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:57:31,295 INFO L93 Difference]: Finished difference Result 442 states and 671 transitions. [2024-10-14 02:57:31,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 02:57:31,298 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 96 [2024-10-14 02:57:31,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:57:31,313 INFO L225 Difference]: With dead ends: 442 [2024-10-14 02:57:31,314 INFO L226 Difference]: Without dead ends: 290 [2024-10-14 02:57:31,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 02:57:31,325 INFO L432 NwaCegarLoop]: 432 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:57:31,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 432 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 02:57:31,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-10-14 02:57:31,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2024-10-14 02:57:31,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 221 states have (on average 1.5701357466063348) internal successors, (347), 223 states have internal predecessors, (347), 50 states have call successors, (50), 19 states have call predecessors, (50), 18 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-10-14 02:57:31,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 444 transitions. [2024-10-14 02:57:31,381 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 444 transitions. Word has length 96 [2024-10-14 02:57:31,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:57:31,382 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 444 transitions. [2024-10-14 02:57:31,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:57:31,382 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 444 transitions. [2024-10-14 02:57:31,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-14 02:57:31,391 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:57:31,391 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:57:31,410 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 02:57:31,592 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 [2024-10-14 02:57:31,592 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:57:31,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:57:31,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1006318737, now seen corresponding path program 1 times [2024-10-14 02:57:31,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:57:31,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445306745] [2024-10-14 02:57:31,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:31,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:57:31,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:31,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:57:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:31,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:57:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:31,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:57:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:31,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:57:31,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:31,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 02:57:31,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:31,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 02:57:31,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:31,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 02:57:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:31,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 02:57:31,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:31,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 02:57:31,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:31,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 02:57:31,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:31,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 02:57:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:31,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 02:57:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:31,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 02:57:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:31,891 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-14 02:57:31,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:57:31,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445306745] [2024-10-14 02:57:31,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445306745] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:57:31,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029308188] [2024-10-14 02:57:31,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:31,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:57:31,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:57:31,894 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) [2024-10-14 02:57:31,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 02:57:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:32,206 INFO L255 TraceCheckSpWp]: Trace formula consists of 1002 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 02:57:32,212 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:57:32,235 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 02:57:32,235 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:57:32,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029308188] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:57:32,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:57:32,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-14 02:57:32,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056321974] [2024-10-14 02:57:32,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:57:32,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 02:57:32,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:57:32,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 02:57:32,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:57:32,239 INFO L87 Difference]: Start difference. First operand 290 states and 444 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:57:32,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:57:32,304 INFO L93 Difference]: Finished difference Result 437 states and 654 transitions. [2024-10-14 02:57:32,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 02:57:32,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 97 [2024-10-14 02:57:32,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:57:32,308 INFO L225 Difference]: With dead ends: 437 [2024-10-14 02:57:32,308 INFO L226 Difference]: Without dead ends: 292 [2024-10-14 02:57:32,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:57:32,312 INFO L432 NwaCegarLoop]: 429 mSDtfsCounter, 0 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:57:32,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 857 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 02:57:32,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-10-14 02:57:32,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2024-10-14 02:57:32,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 223 states have (on average 1.5650224215246638) internal successors, (349), 225 states have internal predecessors, (349), 50 states have call successors, (50), 19 states have call predecessors, (50), 18 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-10-14 02:57:32,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 446 transitions. [2024-10-14 02:57:32,344 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 446 transitions. Word has length 97 [2024-10-14 02:57:32,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:57:32,345 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 446 transitions. [2024-10-14 02:57:32,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:57:32,346 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 446 transitions. [2024-10-14 02:57:32,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-14 02:57:32,349 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:57:32,350 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:57:32,369 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 02:57:32,550 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 [2024-10-14 02:57:32,551 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:57:32,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:57:32,553 INFO L85 PathProgramCache]: Analyzing trace with hash 91441500, now seen corresponding path program 1 times [2024-10-14 02:57:32,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:57:32,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610341665] [2024-10-14 02:57:32,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:32,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:57:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:32,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:57:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:32,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:57:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:32,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:57:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:32,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:57:32,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:32,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 02:57:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:32,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 02:57:32,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:32,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 02:57:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:32,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 02:57:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:32,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 02:57:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:32,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 02:57:32,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:32,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 02:57:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:32,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 02:57:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:32,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 02:57:32,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:32,803 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 02:57:32,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:57:32,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610341665] [2024-10-14 02:57:32,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610341665] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:57:32,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307306703] [2024-10-14 02:57:32,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:32,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:57:32,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:57:32,806 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) [2024-10-14 02:57:32,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 02:57:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:33,115 INFO L255 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 02:57:33,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:57:33,178 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 02:57:33,178 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:57:33,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307306703] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:57:33,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:57:33,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-14 02:57:33,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152089182] [2024-10-14 02:57:33,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:57:33,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 02:57:33,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:57:33,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 02:57:33,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:57:33,183 INFO L87 Difference]: Start difference. First operand 292 states and 446 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:57:33,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:57:33,250 INFO L93 Difference]: Finished difference Result 614 states and 951 transitions. [2024-10-14 02:57:33,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 02:57:33,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 102 [2024-10-14 02:57:33,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:57:33,254 INFO L225 Difference]: With dead ends: 614 [2024-10-14 02:57:33,254 INFO L226 Difference]: Without dead ends: 344 [2024-10-14 02:57:33,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:57:33,257 INFO L432 NwaCegarLoop]: 444 mSDtfsCounter, 102 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:57:33,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 830 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 02:57:33,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-10-14 02:57:33,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 339. [2024-10-14 02:57:33,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 259 states have (on average 1.579150579150579) internal successors, (409), 261 states have internal predecessors, (409), 61 states have call successors, (61), 19 states have call predecessors, (61), 18 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-10-14 02:57:33,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 528 transitions. [2024-10-14 02:57:33,290 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 528 transitions. Word has length 102 [2024-10-14 02:57:33,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:57:33,291 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 528 transitions. [2024-10-14 02:57:33,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:57:33,291 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 528 transitions. [2024-10-14 02:57:33,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-14 02:57:33,294 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:57:33,294 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:57:33,314 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 02:57:33,495 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 [2024-10-14 02:57:33,496 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:57:33,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:57:33,497 INFO L85 PathProgramCache]: Analyzing trace with hash 561134818, now seen corresponding path program 1 times [2024-10-14 02:57:33,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:57:33,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280716628] [2024-10-14 02:57:33,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:33,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:57:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:33,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:57:33,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:33,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:57:33,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:33,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:57:33,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:33,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:57:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:33,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 02:57:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:33,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 02:57:33,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:33,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 02:57:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:33,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 02:57:33,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:33,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 02:57:33,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:33,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 02:57:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:33,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 02:57:33,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:33,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 02:57:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:33,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 02:57:33,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:33,765 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 02:57:33,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:57:33,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280716628] [2024-10-14 02:57:33,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280716628] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:57:33,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331505921] [2024-10-14 02:57:33,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:33,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:57:33,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:57:33,768 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) [2024-10-14 02:57:33,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 02:57:34,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:34,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 1019 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 02:57:34,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:57:34,124 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-14 02:57:34,124 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:57:34,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331505921] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:57:34,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:57:34,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-14 02:57:34,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745294245] [2024-10-14 02:57:34,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:57:34,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 02:57:34,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:57:34,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 02:57:34,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-14 02:57:34,128 INFO L87 Difference]: Start difference. First operand 339 states and 528 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-14 02:57:34,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:57:34,222 INFO L93 Difference]: Finished difference Result 673 states and 1050 transitions. [2024-10-14 02:57:34,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 02:57:34,222 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 103 [2024-10-14 02:57:34,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:57:34,226 INFO L225 Difference]: With dead ends: 673 [2024-10-14 02:57:34,226 INFO L226 Difference]: Without dead ends: 341 [2024-10-14 02:57:34,228 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-14 02:57:34,228 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 2 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 02:57:34,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1673 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 02:57:34,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-10-14 02:57:34,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2024-10-14 02:57:34,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 260 states have (on average 1.5769230769230769) internal successors, (410), 263 states have internal predecessors, (410), 61 states have call successors, (61), 19 states have call predecessors, (61), 19 states have return successors, (60), 58 states have call predecessors, (60), 58 states have call successors, (60) [2024-10-14 02:57:34,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 531 transitions. [2024-10-14 02:57:34,244 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 531 transitions. Word has length 103 [2024-10-14 02:57:34,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:57:34,244 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 531 transitions. [2024-10-14 02:57:34,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-14 02:57:34,245 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 531 transitions. [2024-10-14 02:57:34,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-14 02:57:34,246 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:57:34,247 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:57:34,265 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 02:57:34,447 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 [2024-10-14 02:57:34,448 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:57:34,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:57:34,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1148335639, now seen corresponding path program 1 times [2024-10-14 02:57:34,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:57:34,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545791318] [2024-10-14 02:57:34,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:34,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:57:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:34,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:57:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:34,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:57:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:34,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:57:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:34,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:57:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:34,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 02:57:34,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:34,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-14 02:57:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:34,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 02:57:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:34,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-14 02:57:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:34,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 02:57:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:34,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 02:57:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:34,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 02:57:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:34,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 02:57:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:34,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-14 02:57:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:34,779 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 02:57:34,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:57:34,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545791318] [2024-10-14 02:57:34,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545791318] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:57:34,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350006428] [2024-10-14 02:57:34,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:34,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:57:34,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:57:34,781 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) [2024-10-14 02:57:34,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 02:57:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:35,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 02:57:35,061 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:57:35,113 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-14 02:57:35,114 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:57:35,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350006428] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:57:35,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:57:35,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-10-14 02:57:35,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952475293] [2024-10-14 02:57:35,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:57:35,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 02:57:35,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:57:35,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 02:57:35,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-14 02:57:35,116 INFO L87 Difference]: Start difference. First operand 341 states and 531 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-14 02:57:35,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:57:35,209 INFO L93 Difference]: Finished difference Result 675 states and 1055 transitions. [2024-10-14 02:57:35,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 02:57:35,209 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 104 [2024-10-14 02:57:35,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:57:35,212 INFO L225 Difference]: With dead ends: 675 [2024-10-14 02:57:35,212 INFO L226 Difference]: Without dead ends: 343 [2024-10-14 02:57:35,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-14 02:57:35,214 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 2 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1659 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 02:57:35,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1659 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 02:57:35,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-10-14 02:57:35,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2024-10-14 02:57:35,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 261 states have (on average 1.5747126436781609) internal successors, (411), 265 states have internal predecessors, (411), 61 states have call successors, (61), 19 states have call predecessors, (61), 20 states have return successors, (65), 58 states have call predecessors, (65), 58 states have call successors, (65) [2024-10-14 02:57:35,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 537 transitions. [2024-10-14 02:57:35,228 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 537 transitions. Word has length 104 [2024-10-14 02:57:35,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:57:35,228 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 537 transitions. [2024-10-14 02:57:35,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-14 02:57:35,229 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 537 transitions. [2024-10-14 02:57:35,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-14 02:57:35,230 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:57:35,230 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:57:35,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 02:57:35,431 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 [2024-10-14 02:57:35,431 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:57:35,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:57:35,432 INFO L85 PathProgramCache]: Analyzing trace with hash 896931426, now seen corresponding path program 1 times [2024-10-14 02:57:35,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:57:35,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602731153] [2024-10-14 02:57:35,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:35,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:57:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:35,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:57:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:35,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:57:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:35,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:57:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:35,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:57:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:35,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:57:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:35,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 02:57:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:35,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 02:57:35,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:35,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 02:57:35,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:35,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 02:57:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:35,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:57:35,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:35,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 02:57:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:35,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 02:57:35,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:35,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 02:57:35,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:35,659 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 02:57:35,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:57:35,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602731153] [2024-10-14 02:57:35,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602731153] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:57:35,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:57:35,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 02:57:35,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361469507] [2024-10-14 02:57:35,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:57:35,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 02:57:35,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:57:35,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 02:57:35,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 02:57:35,664 INFO L87 Difference]: Start difference. First operand 343 states and 537 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-14 02:57:37,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:57:37,440 INFO L93 Difference]: Finished difference Result 792 states and 1251 transitions. [2024-10-14 02:57:37,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 02:57:37,441 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 105 [2024-10-14 02:57:37,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:57:37,445 INFO L225 Difference]: With dead ends: 792 [2024-10-14 02:57:37,445 INFO L226 Difference]: Without dead ends: 468 [2024-10-14 02:57:37,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-14 02:57:37,450 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 942 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2306 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 943 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 2611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 2306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 02:57:37,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [943 Valid, 968 Invalid, 2611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 2306 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 02:57:37,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-10-14 02:57:37,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 343. [2024-10-14 02:57:37,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 261 states have (on average 1.5747126436781609) internal successors, (411), 265 states have internal predecessors, (411), 61 states have call successors, (61), 19 states have call predecessors, (61), 20 states have return successors, (64), 58 states have call predecessors, (64), 58 states have call successors, (64) [2024-10-14 02:57:37,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 536 transitions. [2024-10-14 02:57:37,490 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 536 transitions. Word has length 105 [2024-10-14 02:57:37,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:57:37,491 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 536 transitions. [2024-10-14 02:57:37,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-14 02:57:37,491 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 536 transitions. [2024-10-14 02:57:37,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-14 02:57:37,494 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:57:37,495 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:57:37,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 02:57:37,495 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:57:37,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:57:37,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1565528583, now seen corresponding path program 2 times [2024-10-14 02:57:37,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:57:37,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462899630] [2024-10-14 02:57:37,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:37,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:57:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:37,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:57:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:37,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:57:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:37,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:57:37,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:37,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:57:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:37,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:57:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:37,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 02:57:37,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:37,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-14 02:57:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:37,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 02:57:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:37,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:57:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:37,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 02:57:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:37,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 02:57:37,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:37,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 02:57:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:37,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 02:57:37,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:37,699 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 02:57:37,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:57:37,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462899630] [2024-10-14 02:57:37,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462899630] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:57:37,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:57:37,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 02:57:37,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343048053] [2024-10-14 02:57:37,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:57:37,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 02:57:37,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:57:37,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 02:57:37,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 02:57:37,702 INFO L87 Difference]: Start difference. First operand 343 states and 536 transitions. Second operand has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-14 02:57:39,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:57:39,498 INFO L93 Difference]: Finished difference Result 794 states and 1254 transitions. [2024-10-14 02:57:39,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 02:57:39,498 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 106 [2024-10-14 02:57:39,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:57:39,502 INFO L225 Difference]: With dead ends: 794 [2024-10-14 02:57:39,502 INFO L226 Difference]: Without dead ends: 470 [2024-10-14 02:57:39,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-14 02:57:39,504 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 926 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2353 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 2656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 2353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 02:57:39,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 968 Invalid, 2656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 2353 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 02:57:39,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-10-14 02:57:39,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 345. [2024-10-14 02:57:39,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 262 states have (on average 1.5725190839694656) internal successors, (412), 267 states have internal predecessors, (412), 61 states have call successors, (61), 19 states have call predecessors, (61), 21 states have return successors, (66), 58 states have call predecessors, (66), 58 states have call successors, (66) [2024-10-14 02:57:39,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 539 transitions. [2024-10-14 02:57:39,533 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 539 transitions. Word has length 106 [2024-10-14 02:57:39,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:57:39,533 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 539 transitions. [2024-10-14 02:57:39,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-14 02:57:39,533 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 539 transitions. [2024-10-14 02:57:39,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-14 02:57:39,535 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:57:39,536 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:57:39,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 02:57:39,536 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:57:39,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:57:39,536 INFO L85 PathProgramCache]: Analyzing trace with hash 857497799, now seen corresponding path program 1 times [2024-10-14 02:57:39,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:57:39,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796026519] [2024-10-14 02:57:39,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:39,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:57:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:39,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:57:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:39,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:57:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:39,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:57:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:39,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:57:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:39,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:57:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:39,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:57:39,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:39,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 02:57:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:39,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 02:57:39,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:39,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 02:57:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:39,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 02:57:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:39,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 02:57:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:39,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 02:57:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:39,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 02:57:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:39,780 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 02:57:39,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:57:39,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796026519] [2024-10-14 02:57:39,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796026519] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:57:39,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:57:39,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 02:57:39,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799086131] [2024-10-14 02:57:39,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:57:39,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 02:57:39,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:57:39,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 02:57:39,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-14 02:57:39,782 INFO L87 Difference]: Start difference. First operand 345 states and 539 transitions. Second operand has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-14 02:57:42,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:57:42,082 INFO L93 Difference]: Finished difference Result 792 states and 1249 transitions. [2024-10-14 02:57:42,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 02:57:42,082 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 107 [2024-10-14 02:57:42,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:57:42,086 INFO L225 Difference]: With dead ends: 792 [2024-10-14 02:57:42,086 INFO L226 Difference]: Without dead ends: 470 [2024-10-14 02:57:42,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-14 02:57:42,088 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 930 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3882 mSolverCounterSat, 309 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 4191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 309 IncrementalHoareTripleChecker+Valid, 3882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:57:42,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [931 Valid, 1343 Invalid, 4191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [309 Valid, 3882 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-14 02:57:42,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-10-14 02:57:42,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 345. [2024-10-14 02:57:42,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 262 states have (on average 1.5725190839694656) internal successors, (412), 267 states have internal predecessors, (412), 61 states have call successors, (61), 19 states have call predecessors, (61), 21 states have return successors, (65), 58 states have call predecessors, (65), 58 states have call successors, (65) [2024-10-14 02:57:42,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 538 transitions. [2024-10-14 02:57:42,118 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 538 transitions. Word has length 107 [2024-10-14 02:57:42,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:57:42,118 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 538 transitions. [2024-10-14 02:57:42,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-14 02:57:42,119 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 538 transitions. [2024-10-14 02:57:42,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-14 02:57:42,121 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:57:42,121 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:57:42,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 02:57:42,122 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:57:42,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:57:42,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1874114718, now seen corresponding path program 2 times [2024-10-14 02:57:42,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:57:42,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865597183] [2024-10-14 02:57:42,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:42,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:57:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:42,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:57:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:42,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:57:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:42,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:57:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:42,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:57:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:42,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:57:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:42,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:57:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:42,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 02:57:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:42,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 02:57:42,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:42,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 02:57:42,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:42,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 02:57:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:42,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 02:57:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:42,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 02:57:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:42,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 02:57:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:42,367 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 02:57:42,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:57:42,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865597183] [2024-10-14 02:57:42,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865597183] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:57:42,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:57:42,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 02:57:42,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055151624] [2024-10-14 02:57:42,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:57:42,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 02:57:42,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:57:42,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 02:57:42,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-14 02:57:42,369 INFO L87 Difference]: Start difference. First operand 345 states and 538 transitions. Second operand has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-14 02:57:44,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:57:44,698 INFO L93 Difference]: Finished difference Result 794 states and 1255 transitions. [2024-10-14 02:57:44,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 02:57:44,698 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 108 [2024-10-14 02:57:44,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:57:44,703 INFO L225 Difference]: With dead ends: 794 [2024-10-14 02:57:44,703 INFO L226 Difference]: Without dead ends: 472 [2024-10-14 02:57:44,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-14 02:57:44,707 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 926 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3910 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 4216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 3910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:57:44,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 1344 Invalid, 4216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 3910 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-14 02:57:44,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-10-14 02:57:44,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 347. [2024-10-14 02:57:44,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 263 states have (on average 1.570342205323194) internal successors, (413), 269 states have internal predecessors, (413), 61 states have call successors, (61), 19 states have call predecessors, (61), 22 states have return successors, (70), 58 states have call predecessors, (70), 58 states have call successors, (70) [2024-10-14 02:57:44,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 544 transitions. [2024-10-14 02:57:44,737 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 544 transitions. Word has length 108 [2024-10-14 02:57:44,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:57:44,737 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 544 transitions. [2024-10-14 02:57:44,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-14 02:57:44,738 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 544 transitions. [2024-10-14 02:57:44,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-14 02:57:44,739 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:57:44,739 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:57:44,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 02:57:44,740 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:57:44,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:57:44,740 INFO L85 PathProgramCache]: Analyzing trace with hash 2092902700, now seen corresponding path program 1 times [2024-10-14 02:57:44,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:57:44,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179866012] [2024-10-14 02:57:44,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:44,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:57:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:44,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:57:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:44,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:57:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:44,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:57:44,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:44,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:57:44,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:44,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:57:44,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:44,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:57:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:44,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-14 02:57:44,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:44,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 02:57:44,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:44,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 02:57:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:44,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 02:57:44,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:44,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 02:57:44,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:44,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 02:57:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:44,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 02:57:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:44,938 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:57:44,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:57:44,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179866012] [2024-10-14 02:57:44,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179866012] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:57:44,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008933661] [2024-10-14 02:57:44,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:44,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:57:44,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:57:44,941 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) [2024-10-14 02:57:44,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 02:57:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:45,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 02:57:45,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:57:45,271 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:57:45,273 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 02:57:45,366 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:57:45,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008933661] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 02:57:45,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 02:57:45,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2024-10-14 02:57:45,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979892630] [2024-10-14 02:57:45,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 02:57:45,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 02:57:45,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:57:45,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 02:57:45,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-10-14 02:57:45,371 INFO L87 Difference]: Start difference. First operand 347 states and 544 transitions. Second operand has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 7 states have internal predecessors, (102), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 02:57:47,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:57:47,192 INFO L93 Difference]: Finished difference Result 947 states and 1567 transitions. [2024-10-14 02:57:47,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 02:57:47,193 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 7 states have internal predecessors, (102), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 109 [2024-10-14 02:57:47,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:57:47,198 INFO L225 Difference]: With dead ends: 947 [2024-10-14 02:57:47,199 INFO L226 Difference]: Without dead ends: 802 [2024-10-14 02:57:47,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-10-14 02:57:47,201 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 1225 mSDsluCounter, 1001 mSDsCounter, 0 mSdLazyCounter, 2509 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1270 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 2952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 2509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 02:57:47,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1270 Valid, 1211 Invalid, 2952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 2509 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 02:57:47,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2024-10-14 02:57:47,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 662. [2024-10-14 02:57:47,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 514 states have (on average 1.6303501945525292) internal successors, (838), 520 states have internal predecessors, (838), 125 states have call successors, (125), 19 states have call predecessors, (125), 22 states have return successors, (144), 122 states have call predecessors, (144), 122 states have call successors, (144) [2024-10-14 02:57:47,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1107 transitions. [2024-10-14 02:57:47,240 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 1107 transitions. Word has length 109 [2024-10-14 02:57:47,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:57:47,240 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 1107 transitions. [2024-10-14 02:57:47,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 7 states have internal predecessors, (102), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 02:57:47,240 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 1107 transitions. [2024-10-14 02:57:47,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-14 02:57:47,244 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:57:47,244 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:57:47,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-14 02:57:47,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:57:47,445 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:57:47,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:57:47,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1586103447, now seen corresponding path program 1 times [2024-10-14 02:57:47,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:57:47,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215536614] [2024-10-14 02:57:47,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:47,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:57:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:47,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:57:47,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:47,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:57:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:47,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:57:47,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:47,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:57:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:47,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:57:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:47,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:57:47,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:47,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 02:57:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:47,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 02:57:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:47,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 02:57:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:47,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 02:57:47,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:47,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 02:57:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:47,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 02:57:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:47,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 02:57:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:47,556 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:57:47,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:57:47,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215536614] [2024-10-14 02:57:47,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215536614] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:57:47,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:57:47,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:57:47,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612794865] [2024-10-14 02:57:47,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:57:47,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:57:47,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:57:47,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:57:47,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:57:47,558 INFO L87 Difference]: Start difference. First operand 662 states and 1107 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:57:48,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:57:48,983 INFO L93 Difference]: Finished difference Result 1706 states and 2916 transitions. [2024-10-14 02:57:48,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:57:48,983 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2024-10-14 02:57:48,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:57:48,990 INFO L225 Difference]: With dead ends: 1706 [2024-10-14 02:57:48,990 INFO L226 Difference]: Without dead ends: 1104 [2024-10-14 02:57:48,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:57:48,993 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 1038 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 1713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 02:57:48,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1053 Valid, 748 Invalid, 1713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [363 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 02:57:48,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2024-10-14 02:57:49,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 974. [2024-10-14 02:57:49,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 762 states have (on average 1.6404199475065617) internal successors, (1250), 768 states have internal predecessors, (1250), 189 states have call successors, (189), 19 states have call predecessors, (189), 22 states have return successors, (218), 186 states have call predecessors, (218), 186 states have call successors, (218) [2024-10-14 02:57:49,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1657 transitions. [2024-10-14 02:57:49,042 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1657 transitions. Word has length 115 [2024-10-14 02:57:49,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:57:49,043 INFO L471 AbstractCegarLoop]: Abstraction has 974 states and 1657 transitions. [2024-10-14 02:57:49,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:57:49,043 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1657 transitions. [2024-10-14 02:57:49,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-14 02:57:49,049 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:57:49,049 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:57:49,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 02:57:49,049 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:57:49,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:57:49,050 INFO L85 PathProgramCache]: Analyzing trace with hash 886321682, now seen corresponding path program 1 times [2024-10-14 02:57:49,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:57:49,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117559316] [2024-10-14 02:57:49,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:49,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:57:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:49,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:57:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:49,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:57:49,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:49,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:57:49,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:49,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:57:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:49,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:57:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:49,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:57:49,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:49,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 02:57:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:49,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 02:57:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:49,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 02:57:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:49,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 02:57:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:49,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 02:57:49,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:49,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 02:57:49,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:49,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 02:57:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:49,159 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:57:49,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:57:49,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117559316] [2024-10-14 02:57:49,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117559316] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:57:49,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:57:49,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:57:49,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4062967] [2024-10-14 02:57:49,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:57:49,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:57:49,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:57:49,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:57:49,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:57:49,161 INFO L87 Difference]: Start difference. First operand 974 states and 1657 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:57:50,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:57:50,478 INFO L93 Difference]: Finished difference Result 2455 states and 4234 transitions. [2024-10-14 02:57:50,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:57:50,479 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2024-10-14 02:57:50,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:57:50,487 INFO L225 Difference]: With dead ends: 2455 [2024-10-14 02:57:50,487 INFO L226 Difference]: Without dead ends: 1591 [2024-10-14 02:57:50,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:57:50,491 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 1023 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 1336 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 1699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 1336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 02:57:50,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 718 Invalid, 1699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [363 Valid, 1336 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 02:57:50,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1591 states. [2024-10-14 02:57:50,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1591 to 1461. [2024-10-14 02:57:50,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1154 states have (on average 1.6464471403812826) internal successors, (1900), 1160 states have internal predecessors, (1900), 284 states have call successors, (284), 19 states have call predecessors, (284), 22 states have return successors, (313), 281 states have call predecessors, (313), 281 states have call successors, (313) [2024-10-14 02:57:50,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 2497 transitions. [2024-10-14 02:57:50,556 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 2497 transitions. Word has length 116 [2024-10-14 02:57:50,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:57:50,556 INFO L471 AbstractCegarLoop]: Abstraction has 1461 states and 2497 transitions. [2024-10-14 02:57:50,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:57:50,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 2497 transitions. [2024-10-14 02:57:50,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-14 02:57:50,563 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:57:50,564 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:57:50,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 02:57:50,564 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:57:50,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:57:50,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1268220565, now seen corresponding path program 1 times [2024-10-14 02:57:50,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:57:50,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495137862] [2024-10-14 02:57:50,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:50,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:57:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:50,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:57:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:50,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:57:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:50,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:57:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:50,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:57:50,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:50,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:57:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:50,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:57:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:50,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 02:57:50,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:50,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 02:57:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:50,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 02:57:50,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:50,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 02:57:50,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:50,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-14 02:57:50,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:50,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 02:57:50,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:50,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 02:57:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:50,675 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:57:50,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:57:50,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495137862] [2024-10-14 02:57:50,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495137862] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:57:50,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:57:50,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:57:50,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605544086] [2024-10-14 02:57:50,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:57:50,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:57:50,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:57:50,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:57:50,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:57:50,678 INFO L87 Difference]: Start difference. First operand 1461 states and 2497 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:57:51,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:57:51,871 INFO L93 Difference]: Finished difference Result 3557 states and 6193 transitions. [2024-10-14 02:57:51,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:57:51,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 117 [2024-10-14 02:57:51,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:57:51,886 INFO L225 Difference]: With dead ends: 3557 [2024-10-14 02:57:51,887 INFO L226 Difference]: Without dead ends: 2326 [2024-10-14 02:57:51,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:57:51,893 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 1021 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 1689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:57:51,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1036 Valid, 710 Invalid, 1689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 02:57:51,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2326 states. [2024-10-14 02:57:52,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2326 to 2196. [2024-10-14 02:57:52,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2196 states, 1766 states have (on average 1.6517553793884485) internal successors, (2917), 1772 states have internal predecessors, (2917), 407 states have call successors, (407), 19 states have call predecessors, (407), 22 states have return successors, (452), 404 states have call predecessors, (452), 404 states have call successors, (452) [2024-10-14 02:57:52,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 3776 transitions. [2024-10-14 02:57:52,030 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 3776 transitions. Word has length 117 [2024-10-14 02:57:52,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:57:52,030 INFO L471 AbstractCegarLoop]: Abstraction has 2196 states and 3776 transitions. [2024-10-14 02:57:52,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:57:52,031 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 3776 transitions. [2024-10-14 02:57:52,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-14 02:57:52,040 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:57:52,041 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:57:52,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 02:57:52,041 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:57:52,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:57:52,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1766047917, now seen corresponding path program 1 times [2024-10-14 02:57:52,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:57:52,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173458570] [2024-10-14 02:57:52,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:52,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:57:52,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:52,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:57:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:52,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:57:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:52,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:57:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:52,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:57:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:52,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:57:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:52,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:57:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:52,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 02:57:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:52,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 02:57:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:52,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 02:57:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:52,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 02:57:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:52,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 02:57:52,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:52,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 02:57:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:52,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 02:57:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:52,170 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:57:52,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:57:52,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173458570] [2024-10-14 02:57:52,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173458570] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:57:52,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:57:52,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:57:52,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538119170] [2024-10-14 02:57:52,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:57:52,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:57:52,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:57:52,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:57:52,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:57:52,172 INFO L87 Difference]: Start difference. First operand 2196 states and 3776 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:57:53,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:57:53,392 INFO L93 Difference]: Finished difference Result 5267 states and 9243 transitions. [2024-10-14 02:57:53,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:57:53,392 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 118 [2024-10-14 02:57:53,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:57:53,412 INFO L225 Difference]: With dead ends: 5267 [2024-10-14 02:57:53,412 INFO L226 Difference]: Without dead ends: 3498 [2024-10-14 02:57:53,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:57:53,420 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 1032 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 359 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 1657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 359 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:57:53,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 708 Invalid, 1657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [359 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 02:57:53,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3498 states. [2024-10-14 02:57:53,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3498 to 3368. [2024-10-14 02:57:53,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3368 states, 2759 states have (on average 1.6553098948894527) internal successors, (4567), 2765 states have internal predecessors, (4567), 586 states have call successors, (586), 19 states have call predecessors, (586), 22 states have return successors, (657), 583 states have call predecessors, (657), 583 states have call successors, (657) [2024-10-14 02:57:53,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3368 states to 3368 states and 5810 transitions. [2024-10-14 02:57:53,570 INFO L78 Accepts]: Start accepts. Automaton has 3368 states and 5810 transitions. Word has length 118 [2024-10-14 02:57:53,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:57:53,572 INFO L471 AbstractCegarLoop]: Abstraction has 3368 states and 5810 transitions. [2024-10-14 02:57:53,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:57:53,572 INFO L276 IsEmpty]: Start isEmpty. Operand 3368 states and 5810 transitions. [2024-10-14 02:57:53,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-14 02:57:53,585 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:57:53,585 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:57:53,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 02:57:53,586 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:57:53,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:57:53,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1922263175, now seen corresponding path program 1 times [2024-10-14 02:57:53,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:57:53,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334760188] [2024-10-14 02:57:53,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:53,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:57:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:53,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:57:53,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:53,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:57:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:53,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:57:53,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:53,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:57:53,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:53,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:57:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:53,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:57:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:53,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 02:57:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:53,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 02:57:53,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:53,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 02:57:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:53,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 02:57:53,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:53,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 02:57:53,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:53,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 02:57:53,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:53,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 02:57:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:53,701 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:57:53,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:57:53,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334760188] [2024-10-14 02:57:53,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334760188] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:57:53,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:57:53,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:57:53,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104615058] [2024-10-14 02:57:53,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:57:53,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:57:53,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:57:53,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:57:53,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:57:53,705 INFO L87 Difference]: Start difference. First operand 3368 states and 5810 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:57:55,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:57:55,051 INFO L93 Difference]: Finished difference Result 8122 states and 14297 transitions. [2024-10-14 02:57:55,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:57:55,052 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 119 [2024-10-14 02:57:55,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:57:55,082 INFO L225 Difference]: With dead ends: 8122 [2024-10-14 02:57:55,083 INFO L226 Difference]: Without dead ends: 5468 [2024-10-14 02:57:55,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:57:55,095 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 1030 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 1686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 02:57:55,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1045 Valid, 739 Invalid, 1686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [363 Valid, 1323 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 02:57:55,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5468 states. [2024-10-14 02:57:55,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5468 to 5338. [2024-10-14 02:57:55,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5338 states, 4353 states have (on average 1.6443831840110268) internal successors, (7158), 4359 states have internal predecessors, (7158), 962 states have call successors, (962), 19 states have call predecessors, (962), 22 states have return successors, (1077), 959 states have call predecessors, (1077), 959 states have call successors, (1077) [2024-10-14 02:57:55,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5338 states to 5338 states and 9197 transitions. [2024-10-14 02:57:55,405 INFO L78 Accepts]: Start accepts. Automaton has 5338 states and 9197 transitions. Word has length 119 [2024-10-14 02:57:55,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:57:55,406 INFO L471 AbstractCegarLoop]: Abstraction has 5338 states and 9197 transitions. [2024-10-14 02:57:55,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:57:55,406 INFO L276 IsEmpty]: Start isEmpty. Operand 5338 states and 9197 transitions. [2024-10-14 02:57:55,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-14 02:57:55,425 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:57:55,425 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:57:55,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 02:57:55,425 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:57:55,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:57:55,426 INFO L85 PathProgramCache]: Analyzing trace with hash -334330825, now seen corresponding path program 1 times [2024-10-14 02:57:55,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:57:55,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880434160] [2024-10-14 02:57:55,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:55,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:57:55,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:55,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:57:55,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:55,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:57:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:55,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:57:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:55,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:57:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:55,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:57:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:55,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:57:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:55,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 02:57:55,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:55,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:57:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:55,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 02:57:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:55,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 02:57:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:55,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 02:57:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:55,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 02:57:55,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:55,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 02:57:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:55,543 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:57:55,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:57:55,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880434160] [2024-10-14 02:57:55,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880434160] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:57:55,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:57:55,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:57:55,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440707443] [2024-10-14 02:57:55,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:57:55,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:57:55,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:57:55,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:57:55,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:57:55,547 INFO L87 Difference]: Start difference. First operand 5338 states and 9197 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:57:56,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:57:56,906 INFO L93 Difference]: Finished difference Result 13259 states and 23318 transitions. [2024-10-14 02:57:56,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:57:56,907 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 120 [2024-10-14 02:57:56,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:57:56,972 INFO L225 Difference]: With dead ends: 13259 [2024-10-14 02:57:56,972 INFO L226 Difference]: Without dead ends: 9001 [2024-10-14 02:57:56,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:57:56,991 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 1015 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 1704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:57:56,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1030 Valid, 724 Invalid, 1704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [363 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 02:57:57,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9001 states. [2024-10-14 02:57:57,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9001 to 8871. [2024-10-14 02:57:57,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8871 states, 7280 states have (on average 1.642032967032967) internal successors, (11954), 7286 states have internal predecessors, (11954), 1568 states have call successors, (1568), 19 states have call predecessors, (1568), 22 states have return successors, (1761), 1565 states have call predecessors, (1761), 1565 states have call successors, (1761) [2024-10-14 02:57:57,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8871 states to 8871 states and 15283 transitions. [2024-10-14 02:57:57,429 INFO L78 Accepts]: Start accepts. Automaton has 8871 states and 15283 transitions. Word has length 120 [2024-10-14 02:57:57,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:57:57,430 INFO L471 AbstractCegarLoop]: Abstraction has 8871 states and 15283 transitions. [2024-10-14 02:57:57,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:57:57,431 INFO L276 IsEmpty]: Start isEmpty. Operand 8871 states and 15283 transitions. [2024-10-14 02:57:57,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-14 02:57:57,454 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:57:57,454 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:57:57,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 02:57:57,454 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:57:57,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:57:57,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1631885781, now seen corresponding path program 1 times [2024-10-14 02:57:57,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:57:57,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089561772] [2024-10-14 02:57:57,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:57,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:57:57,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:57,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:57:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:57,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:57:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:57,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:57:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:57,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:57:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:57,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:57:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:57,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:57:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:57,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 02:57:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:57,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 02:57:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:57,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 02:57:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:57,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 02:57:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:57,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 02:57:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:57,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 02:57:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:57,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 02:57:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:57,566 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:57:57,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:57:57,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089561772] [2024-10-14 02:57:57,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089561772] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:57:57,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:57:57,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:57:57,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083639114] [2024-10-14 02:57:57,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:57:57,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:57:57,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:57:57,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:57:57,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:57:57,569 INFO L87 Difference]: Start difference. First operand 8871 states and 15283 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:57:58,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:57:58,920 INFO L93 Difference]: Finished difference Result 23031 states and 40452 transitions. [2024-10-14 02:57:58,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:57:58,922 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2024-10-14 02:57:58,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:57:58,988 INFO L225 Difference]: With dead ends: 23031 [2024-10-14 02:57:58,988 INFO L226 Difference]: Without dead ends: 15673 [2024-10-14 02:57:59,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:57:59,018 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 1026 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 1687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:57:59,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 757 Invalid, 1687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 02:57:59,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15673 states. [2024-10-14 02:57:59,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15673 to 15543. [2024-10-14 02:57:59,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15543 states, 12749 states have (on average 1.6326770727115851) internal successors, (20815), 12755 states have internal predecessors, (20815), 2771 states have call successors, (2771), 19 states have call predecessors, (2771), 22 states have return successors, (3108), 2768 states have call predecessors, (3108), 2768 states have call successors, (3108) [2024-10-14 02:57:59,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15543 states to 15543 states and 26694 transitions. [2024-10-14 02:57:59,849 INFO L78 Accepts]: Start accepts. Automaton has 15543 states and 26694 transitions. Word has length 121 [2024-10-14 02:57:59,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:57:59,850 INFO L471 AbstractCegarLoop]: Abstraction has 15543 states and 26694 transitions. [2024-10-14 02:57:59,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:57:59,851 INFO L276 IsEmpty]: Start isEmpty. Operand 15543 states and 26694 transitions. [2024-10-14 02:57:59,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-14 02:57:59,889 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:57:59,889 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:57:59,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 02:57:59,890 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:57:59,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:57:59,890 INFO L85 PathProgramCache]: Analyzing trace with hash -405532008, now seen corresponding path program 1 times [2024-10-14 02:57:59,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:57:59,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478595782] [2024-10-14 02:57:59,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:59,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:57:59,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:59,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:57:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:59,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:57:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:59,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:57:59,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:59,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:57:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:59,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:57:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:59,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:57:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 02:58:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 02:58:00,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 02:58:00,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 02:58:00,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 02:58:00,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 02:58:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 02:58:00,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,033 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:58:00,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:00,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478595782] [2024-10-14 02:58:00,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478595782] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:00,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:58:00,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:58:00,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462338896] [2024-10-14 02:58:00,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:00,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:58:00,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:00,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:58:00,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:58:00,036 INFO L87 Difference]: Start difference. First operand 15543 states and 26694 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:58:01,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:01,675 INFO L93 Difference]: Finished difference Result 41198 states and 72252 transitions. [2024-10-14 02:58:01,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:58:01,676 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2024-10-14 02:58:01,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:01,792 INFO L225 Difference]: With dead ends: 41198 [2024-10-14 02:58:01,792 INFO L226 Difference]: Without dead ends: 27788 [2024-10-14 02:58:01,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:58:01,839 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 1024 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 1665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:01,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1039 Valid, 708 Invalid, 1665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 02:58:01,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27788 states. [2024-10-14 02:58:02,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27788 to 27658. [2024-10-14 02:58:02,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27658 states, 22825 states have (on average 1.6288718510405258) internal successors, (37179), 22831 states have internal predecessors, (37179), 4810 states have call successors, (4810), 19 states have call predecessors, (4810), 22 states have return successors, (5421), 4807 states have call predecessors, (5421), 4807 states have call successors, (5421) [2024-10-14 02:58:03,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27658 states to 27658 states and 47410 transitions. [2024-10-14 02:58:03,040 INFO L78 Accepts]: Start accepts. Automaton has 27658 states and 47410 transitions. Word has length 122 [2024-10-14 02:58:03,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:03,040 INFO L471 AbstractCegarLoop]: Abstraction has 27658 states and 47410 transitions. [2024-10-14 02:58:03,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:58:03,041 INFO L276 IsEmpty]: Start isEmpty. Operand 27658 states and 47410 transitions. [2024-10-14 02:58:03,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-14 02:58:03,071 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:03,071 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:58:03,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 02:58:03,071 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:03,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:03,072 INFO L85 PathProgramCache]: Analyzing trace with hash -598527849, now seen corresponding path program 1 times [2024-10-14 02:58:03,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:03,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330534824] [2024-10-14 02:58:03,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:03,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:03,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:03,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:58:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:58:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 02:58:03,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 02:58:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 02:58:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-14 02:58:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 02:58:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 02:58:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 02:58:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,172 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:58:03,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:03,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330534824] [2024-10-14 02:58:03,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330534824] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:03,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:58:03,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:58:03,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707865166] [2024-10-14 02:58:03,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:03,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:58:03,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:03,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:58:03,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:58:03,175 INFO L87 Difference]: Start difference. First operand 27658 states and 47410 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:58:05,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:05,750 INFO L93 Difference]: Finished difference Result 75390 states and 131441 transitions. [2024-10-14 02:58:05,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:58:05,751 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2024-10-14 02:58:05,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:05,945 INFO L225 Difference]: With dead ends: 75390 [2024-10-14 02:58:05,945 INFO L226 Difference]: Without dead ends: 50612 [2024-10-14 02:58:06,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:58:06,025 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 1009 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 1687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:06,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 709 Invalid, 1687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [363 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 02:58:06,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50612 states. [2024-10-14 02:58:07,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50612 to 50482. [2024-10-14 02:58:07,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50482 states, 41934 states have (on average 1.623813611866266) internal successors, (68093), 41940 states have internal predecessors, (68093), 8525 states have call successors, (8525), 19 states have call predecessors, (8525), 22 states have return successors, (9668), 8522 states have call predecessors, (9668), 8522 states have call successors, (9668) [2024-10-14 02:58:08,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50482 states to 50482 states and 86286 transitions. [2024-10-14 02:58:08,133 INFO L78 Accepts]: Start accepts. Automaton has 50482 states and 86286 transitions. Word has length 123 [2024-10-14 02:58:08,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:08,134 INFO L471 AbstractCegarLoop]: Abstraction has 50482 states and 86286 transitions. [2024-10-14 02:58:08,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:58:08,134 INFO L276 IsEmpty]: Start isEmpty. Operand 50482 states and 86286 transitions. [2024-10-14 02:58:08,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 02:58:08,170 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:08,170 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:58:08,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 02:58:08,171 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:08,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:08,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1203158824, now seen corresponding path program 1 times [2024-10-14 02:58:08,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:08,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978991554] [2024-10-14 02:58:08,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:08,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:08,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:08,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:08,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:08,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:08,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:58:08,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:08,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:58:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:08,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 02:58:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:08,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 02:58:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:08,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 02:58:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:08,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 02:58:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:08,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 02:58:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:08,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 02:58:08,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:08,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 02:58:08,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:08,282 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:58:08,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:08,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978991554] [2024-10-14 02:58:08,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978991554] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:08,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:58:08,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:58:08,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023067421] [2024-10-14 02:58:08,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:08,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:58:08,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:08,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:58:08,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:58:08,284 INFO L87 Difference]: Start difference. First operand 50482 states and 86286 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:58:11,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:11,404 INFO L93 Difference]: Finished difference Result 94137 states and 164604 transitions. [2024-10-14 02:58:11,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:58:11,404 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2024-10-14 02:58:11,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:11,861 INFO L225 Difference]: With dead ends: 94137 [2024-10-14 02:58:11,861 INFO L226 Difference]: Without dead ends: 93992 [2024-10-14 02:58:11,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:58:11,926 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 1005 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 1696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:11,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1019 Valid, 722 Invalid, 1696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [356 Valid, 1340 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 02:58:12,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93992 states. [2024-10-14 02:58:14,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93992 to 93862. [2024-10-14 02:58:15,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93862 states, 78515 states have (on average 1.617321530917659) internal successors, (126984), 78521 states have internal predecessors, (126984), 15324 states have call successors, (15324), 19 states have call predecessors, (15324), 22 states have return successors, (17513), 15321 states have call predecessors, (17513), 15321 states have call successors, (17513) [2024-10-14 02:58:15,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93862 states to 93862 states and 159821 transitions. [2024-10-14 02:58:15,385 INFO L78 Accepts]: Start accepts. Automaton has 93862 states and 159821 transitions. Word has length 124 [2024-10-14 02:58:15,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:15,385 INFO L471 AbstractCegarLoop]: Abstraction has 93862 states and 159821 transitions. [2024-10-14 02:58:15,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:58:15,386 INFO L276 IsEmpty]: Start isEmpty. Operand 93862 states and 159821 transitions. [2024-10-14 02:58:15,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 02:58:15,426 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:15,426 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:58:15,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 02:58:15,426 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:15,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:15,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1802521014, now seen corresponding path program 1 times [2024-10-14 02:58:15,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:15,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582895506] [2024-10-14 02:58:15,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:15,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:15,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:15,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:15,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:15,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:15,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:15,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:58:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:15,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:58:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:15,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:58:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:15,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:58:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:15,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 02:58:15,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:15,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 02:58:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:15,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 02:58:15,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:15,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 02:58:15,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:15,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 02:58:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:15,662 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:58:15,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:15,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582895506] [2024-10-14 02:58:15,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582895506] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:15,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:58:15,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 02:58:15,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581907333] [2024-10-14 02:58:15,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:15,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 02:58:15,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:15,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 02:58:15,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:58:15,665 INFO L87 Difference]: Start difference. First operand 93862 states and 159821 transitions. Second operand has 10 states, 10 states have (on average 8.3) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-14 02:58:20,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:20,952 INFO L93 Difference]: Finished difference Result 94639 states and 164284 transitions. [2024-10-14 02:58:20,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-14 02:58:20,952 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 125 [2024-10-14 02:58:20,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:21,376 INFO L225 Difference]: With dead ends: 94639 [2024-10-14 02:58:21,376 INFO L226 Difference]: Without dead ends: 94499 [2024-10-14 02:58:21,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=328, Invalid=862, Unknown=0, NotChecked=0, Total=1190 [2024-10-14 02:58:21,424 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 1699 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 4293 mSolverCounterSat, 508 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1713 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 4801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 508 IncrementalHoareTripleChecker+Valid, 4293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:21,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1713 Valid, 961 Invalid, 4801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [508 Valid, 4293 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-10-14 02:58:21,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94499 states. [2024-10-14 02:58:24,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94499 to 94146. [2024-10-14 02:58:24,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94146 states, 78735 states have (on average 1.6169683114243982) internal successors, (127312), 78744 states have internal predecessors, (127312), 15362 states have call successors, (15362), 41 states have call predecessors, (15362), 48 states have return successors, (17558), 15360 states have call predecessors, (17558), 15357 states have call successors, (17558) [2024-10-14 02:58:25,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94146 states to 94146 states and 160232 transitions. [2024-10-14 02:58:25,342 INFO L78 Accepts]: Start accepts. Automaton has 94146 states and 160232 transitions. Word has length 125 [2024-10-14 02:58:25,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:25,346 INFO L471 AbstractCegarLoop]: Abstraction has 94146 states and 160232 transitions. [2024-10-14 02:58:25,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-14 02:58:25,347 INFO L276 IsEmpty]: Start isEmpty. Operand 94146 states and 160232 transitions. [2024-10-14 02:58:25,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-14 02:58:25,412 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:25,413 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:58:25,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 02:58:25,413 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:25,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:25,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1970007950, now seen corresponding path program 1 times [2024-10-14 02:58:25,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:25,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127907778] [2024-10-14 02:58:25,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:25,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:25,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:25,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:25,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:25,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:25,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:25,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:58:25,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:25,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:58:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:25,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:58:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:25,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:58:25,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:25,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 02:58:25,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:25,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 02:58:25,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:25,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 02:58:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:25,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 02:58:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:25,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 02:58:25,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:25,706 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:58:25,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:25,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127907778] [2024-10-14 02:58:25,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127907778] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:25,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:58:25,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-14 02:58:25,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039176716] [2024-10-14 02:58:25,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:25,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 02:58:25,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:25,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 02:58:25,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2024-10-14 02:58:25,708 INFO L87 Difference]: Start difference. First operand 94146 states and 160232 transitions. Second operand has 14 states, 12 states have (on average 7.0) internal successors, (84), 9 states have internal predecessors, (84), 6 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2024-10-14 02:58:30,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:30,537 INFO L93 Difference]: Finished difference Result 95080 states and 164952 transitions. [2024-10-14 02:58:30,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-14 02:58:30,538 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.0) internal successors, (84), 9 states have internal predecessors, (84), 6 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) Word has length 126 [2024-10-14 02:58:30,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:30,974 INFO L225 Difference]: With dead ends: 95080 [2024-10-14 02:58:30,974 INFO L226 Difference]: Without dead ends: 94391 [2024-10-14 02:58:31,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=302, Invalid=1258, Unknown=0, NotChecked=0, Total=1560 [2024-10-14 02:58:31,027 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 1465 mSDsluCounter, 1459 mSDsCounter, 0 mSdLazyCounter, 5676 mSolverCounterSat, 540 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 1621 SdHoareTripleChecker+Invalid, 6216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 540 IncrementalHoareTripleChecker+Valid, 5676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:31,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1465 Valid, 1621 Invalid, 6216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [540 Valid, 5676 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-14 02:58:31,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94391 states. [2024-10-14 02:58:34,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94391 to 94116. [2024-10-14 02:58:34,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94116 states, 78714 states have (on average 1.616980460909114) internal successors, (127279), 78723 states have internal predecessors, (127279), 15356 states have call successors, (15356), 40 states have call predecessors, (15356), 45 states have return successors, (17551), 15352 states have call predecessors, (17551), 15352 states have call successors, (17551) [2024-10-14 02:58:34,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94116 states to 94116 states and 160186 transitions. [2024-10-14 02:58:34,409 INFO L78 Accepts]: Start accepts. Automaton has 94116 states and 160186 transitions. Word has length 126 [2024-10-14 02:58:34,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:34,410 INFO L471 AbstractCegarLoop]: Abstraction has 94116 states and 160186 transitions. [2024-10-14 02:58:34,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.0) internal successors, (84), 9 states have internal predecessors, (84), 6 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2024-10-14 02:58:34,410 INFO L276 IsEmpty]: Start isEmpty. Operand 94116 states and 160186 transitions. [2024-10-14 02:58:34,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-14 02:58:34,454 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:34,454 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:58:34,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 02:58:34,454 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:34,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:34,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1494201004, now seen corresponding path program 1 times [2024-10-14 02:58:34,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:34,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544378912] [2024-10-14 02:58:34,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:34,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:34,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:34,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:34,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:34,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:34,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:34,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:58:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:34,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:58:34,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:34,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:58:34,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:34,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:58:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:34,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-14 02:58:34,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:34,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 02:58:34,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:34,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 02:58:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:35,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 02:58:35,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:35,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 02:58:35,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:35,050 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-10-14 02:58:35,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:35,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544378912] [2024-10-14 02:58:35,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544378912] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:58:35,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022088307] [2024-10-14 02:58:35,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:35,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:58:35,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:58:35,054 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) [2024-10-14 02:58:35,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 02:58:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:35,373 INFO L255 TraceCheckSpWp]: Trace formula consists of 1100 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-14 02:58:35,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:58:35,702 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 02:58:35,703 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:58:35,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022088307] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:35,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:58:35,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [20] total 31 [2024-10-14 02:58:35,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498049239] [2024-10-14 02:58:35,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:35,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 02:58:35,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:35,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 02:58:35,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=857, Unknown=0, NotChecked=0, Total=930 [2024-10-14 02:58:35,705 INFO L87 Difference]: Start difference. First operand 94116 states and 160186 transitions. Second operand has 13 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 6 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) [2024-10-14 02:58:38,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:38,651 INFO L93 Difference]: Finished difference Result 94761 states and 161101 transitions. [2024-10-14 02:58:38,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-14 02:58:38,652 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 6 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) Word has length 129 [2024-10-14 02:58:38,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:38,972 INFO L225 Difference]: With dead ends: 94761 [2024-10-14 02:58:38,973 INFO L226 Difference]: Without dead ends: 94597 [2024-10-14 02:58:39,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=200, Invalid=1870, Unknown=0, NotChecked=0, Total=2070 [2024-10-14 02:58:39,023 INFO L432 NwaCegarLoop]: 454 mSDtfsCounter, 691 mSDsluCounter, 4109 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 4563 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:39,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 4563 Invalid, 755 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [103 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 02:58:39,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94597 states.