./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec7_product13.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec7_product13.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 2fde44ff6f2aac911c03318478d3361889c0f9ce519411733d9129672caa5fa0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 07:46:09,398 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 07:46:09,455 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 07:46:09,464 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 07:46:09,464 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 07:46:09,494 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 07:46:09,495 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 07:46:09,496 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 07:46:09,496 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 07:46:09,498 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 07:46:09,498 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 07:46:09,498 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 07:46:09,499 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 07:46:09,499 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 07:46:09,501 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 07:46:09,501 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 07:46:09,502 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 07:46:09,502 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 07:46:09,502 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 07:46:09,502 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 07:46:09,503 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 07:46:09,506 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 07:46:09,507 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 07:46:09,507 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 07:46:09,507 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 07:46:09,507 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 07:46:09,507 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 07:46:09,507 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 07:46:09,508 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 07:46:09,508 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 07:46:09,508 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 07:46:09,508 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 07:46:09,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 07:46:09,509 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 07:46:09,509 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 07:46:09,509 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 07:46:09,509 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 07:46:09,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 07:46:09,510 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 07:46:09,510 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 07:46:09,510 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 07:46:09,512 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 07:46:09,513 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2fde44ff6f2aac911c03318478d3361889c0f9ce519411733d9129672caa5fa0 [2024-11-16 07:46:09,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 07:46:09,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 07:46:09,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 07:46:09,790 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 07:46:09,791 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 07:46:09,793 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec7_product13.cil.c [2024-11-16 07:46:11,304 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 07:46:11,598 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 07:46:11,599 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product13.cil.c [2024-11-16 07:46:11,630 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1437452b6/186546bc672a4004bffaecbf54e27756/FLAG2d4593ca0 [2024-11-16 07:46:11,643 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1437452b6/186546bc672a4004bffaecbf54e27756 [2024-11-16 07:46:11,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 07:46:11,647 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 07:46:11,648 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 07:46:11,648 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 07:46:11,654 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 07:46:11,655 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:46:11" (1/1) ... [2024-11-16 07:46:11,658 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49cc5d02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:11, skipping insertion in model container [2024-11-16 07:46:11,658 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:46:11" (1/1) ... [2024-11-16 07:46:11,719 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 07:46:12,123 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product13.cil.c[16810,16823] [2024-11-16 07:46:12,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 07:46:12,303 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 07:46:12,314 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [48] [2024-11-16 07:46:12,317 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [79] [2024-11-16 07:46:12,317 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [371] [2024-11-16 07:46:12,317 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [737] [2024-11-16 07:46:12,317 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [746] [2024-11-16 07:46:12,318 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [781] [2024-11-16 07:46:12,318 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1193] [2024-11-16 07:46:12,318 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1210] [2024-11-16 07:46:12,318 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1308] [2024-11-16 07:46:12,318 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1562] [2024-11-16 07:46:12,318 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2631] [2024-11-16 07:46:12,366 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product13.cil.c[16810,16823] [2024-11-16 07:46:12,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 07:46:12,453 INFO L204 MainTranslator]: Completed translation [2024-11-16 07:46:12,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:12 WrapperNode [2024-11-16 07:46:12,453 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 07:46:12,454 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 07:46:12,454 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 07:46:12,454 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 07:46:12,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:12" (1/1) ... [2024-11-16 07:46:12,483 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:12" (1/1) ... [2024-11-16 07:46:12,536 INFO L138 Inliner]: procedures = 124, calls = 176, calls flagged for inlining = 54, calls inlined = 45, statements flattened = 850 [2024-11-16 07:46:12,537 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 07:46:12,537 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 07:46:12,537 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 07:46:12,538 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 07:46:12,554 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:12" (1/1) ... [2024-11-16 07:46:12,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:12" (1/1) ... [2024-11-16 07:46:12,562 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:12" (1/1) ... [2024-11-16 07:46:12,598 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-16 07:46:12,599 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:12" (1/1) ... [2024-11-16 07:46:12,599 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:12" (1/1) ... [2024-11-16 07:46:12,615 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:12" (1/1) ... [2024-11-16 07:46:12,618 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:12" (1/1) ... [2024-11-16 07:46:12,625 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:12" (1/1) ... [2024-11-16 07:46:12,628 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:12" (1/1) ... [2024-11-16 07:46:12,637 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 07:46:12,638 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 07:46:12,638 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 07:46:12,638 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 07:46:12,639 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:12" (1/1) ... [2024-11-16 07:46:12,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 07:46:12,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:46:12,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 07:46:12,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 07:46:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-16 07:46:12,734 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-16 07:46:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-16 07:46:12,734 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-16 07:46:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-16 07:46:12,734 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-16 07:46:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-16 07:46:12,735 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-16 07:46:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-16 07:46:12,736 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-16 07:46:12,736 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-16 07:46:12,736 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-16 07:46:12,737 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-16 07:46:12,737 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-16 07:46:12,737 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-16 07:46:12,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-16 07:46:12,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 07:46:12,738 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-16 07:46:12,738 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-16 07:46:12,738 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-16 07:46:12,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-16 07:46:12,740 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-16 07:46:12,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-16 07:46:12,740 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-16 07:46:12,740 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-16 07:46:12,740 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-16 07:46:12,740 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-16 07:46:12,740 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-16 07:46:12,741 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-16 07:46:12,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 07:46:12,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 07:46:12,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 07:46:12,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 07:46:12,741 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-16 07:46:12,741 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-16 07:46:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 07:46:12,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 07:46:12,947 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 07:46:12,951 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 07:46:13,010 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1137: #res := ~retValue_acc~15; [2024-11-16 07:46:13,273 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2489-1: findPublicKey_#res#1 := findPublicKey_~retValue_acc~40#1; [2024-11-16 07:46:13,273 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2608-1: getClientId_#res#1 := getClientId_~retValue_acc~42#1; [2024-11-16 07:46:13,273 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1477-1: isKeyPairValid_#res#1 := isKeyPairValid_~retValue_acc~25#1; [2024-11-16 07:46:13,273 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2173-1: getClientPrivateKey_#res#1 := getClientPrivateKey_~retValue_acc~35#1; [2024-11-16 07:46:13,286 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1100: #res := ~retValue_acc~14; [2024-11-16 07:46:13,338 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L911: #res := ~retValue_acc~9; [2024-11-16 07:46:13,377 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2265: #res#1 := ~retValue_acc~37#1; [2024-11-16 07:46:13,378 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2220-1: getClientKeyringSize_#res#1 := getClientKeyringSize_~retValue_acc~36#1; [2024-11-16 07:46:13,409 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1305-1: createEmail_#res#1 := createEmail_~retValue_acc~20#1; [2024-11-16 07:46:13,647 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1434-1: is_queue_empty_#res#1 := is_queue_empty_~retValue_acc~22#1; [2024-11-16 07:46:13,648 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1443-1: get_queued_client_#res#1 := get_queued_client_~retValue_acc~23#1; [2024-11-16 07:46:13,648 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1452-1: get_queued_email_#res#1 := get_queued_email_~retValue_acc~24#1; [2024-11-16 07:46:13,648 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2435-1: getClientKeyringPublicKey_#res#1 := getClientKeyringPublicKey_~retValue_acc~39#1; [2024-11-16 07:46:13,648 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2328-1: getClientKeyringUser_#res#1 := getClientKeyringUser_~retValue_acc~38#1; [2024-11-16 07:46:13,648 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L778-1: valid_product_#res#1 := valid_product_~retValue_acc~5#1; [2024-11-16 07:46:13,655 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L874: #res := ~retValue_acc~8; [2024-11-16 07:46:13,659 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1281: #res := ~retValue_acc~18; [2024-11-16 07:46:13,785 INFO L? ?]: Removed 362 outVars from TransFormulas that were not future-live. [2024-11-16 07:46:13,785 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 07:46:13,811 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 07:46:13,813 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 07:46:13,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:46:13 BoogieIcfgContainer [2024-11-16 07:46:13,813 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 07:46:13,815 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 07:46:13,817 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 07:46:13,820 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 07:46:13,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:46:11" (1/3) ... [2024-11-16 07:46:13,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13690e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:46:13, skipping insertion in model container [2024-11-16 07:46:13,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:46:12" (2/3) ... [2024-11-16 07:46:13,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13690e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:46:13, skipping insertion in model container [2024-11-16 07:46:13,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:46:13" (3/3) ... [2024-11-16 07:46:13,824 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product13.cil.c [2024-11-16 07:46:13,841 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 07:46:13,841 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 07:46:13,922 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 07:46:13,932 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;@118e1e6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 07:46:13,932 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 07:46:13,940 INFO L276 IsEmpty]: Start isEmpty. Operand has 277 states, 225 states have (on average 1.5244444444444445) internal successors, (343), 227 states have internal predecessors, (343), 35 states have call successors, (35), 15 states have call predecessors, (35), 15 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-16 07:46:13,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-16 07:46:13,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:13,963 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] [2024-11-16 07:46:13,965 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:13,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:13,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1788715088, now seen corresponding path program 1 times [2024-11-16 07:46:13,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:13,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525334680] [2024-11-16 07:46:13,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:13,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:14,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:14,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:14,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:14,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:14,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 07:46:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:14,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 07:46:14,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:14,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:46:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:14,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 07:46:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:14,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 07:46:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:14,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 07:46:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:14,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 07:46:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:14,769 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-16 07:46:14,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:14,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525334680] [2024-11-16 07:46:14,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525334680] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:46:14,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42556861] [2024-11-16 07:46:14,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:14,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:46:14,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:46:14,774 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:46:14,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 07:46:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:15,048 INFO L255 TraceCheckSpWp]: Trace formula consists of 890 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-16 07:46:15,083 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:46:15,108 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-16 07:46:15,108 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:46:15,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42556861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:15,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:46:15,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2024-11-16 07:46:15,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297535425] [2024-11-16 07:46:15,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:15,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 07:46:15,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:15,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 07:46:15,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 07:46:15,150 INFO L87 Difference]: Start difference. First operand has 277 states, 225 states have (on average 1.5244444444444445) internal successors, (343), 227 states have internal predecessors, (343), 35 states have call successors, (35), 15 states have call predecessors, (35), 15 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:15,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:15,202 INFO L93 Difference]: Finished difference Result 393 states and 576 transitions. [2024-11-16 07:46:15,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 07:46:15,206 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 84 [2024-11-16 07:46:15,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:15,221 INFO L225 Difference]: With dead ends: 393 [2024-11-16 07:46:15,222 INFO L226 Difference]: Without dead ends: 269 [2024-11-16 07:46:15,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 07:46:15,228 INFO L432 NwaCegarLoop]: 408 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:15,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:46:15,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-11-16 07:46:15,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2024-11-16 07:46:15,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 218 states have (on average 1.518348623853211) internal successors, (331), 219 states have internal predecessors, (331), 35 states have call successors, (35), 15 states have call predecessors, (35), 15 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-16 07:46:15,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 400 transitions. [2024-11-16 07:46:15,295 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 400 transitions. Word has length 84 [2024-11-16 07:46:15,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:15,297 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 400 transitions. [2024-11-16 07:46:15,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:15,298 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 400 transitions. [2024-11-16 07:46:15,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-16 07:46:15,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:15,302 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] [2024-11-16 07:46:15,324 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 07:46:15,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-16 07:46:15,514 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:15,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:15,514 INFO L85 PathProgramCache]: Analyzing trace with hash -99753519, now seen corresponding path program 1 times [2024-11-16 07:46:15,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:15,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319302875] [2024-11-16 07:46:15,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:15,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:15,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:15,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:15,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:15,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:15,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 07:46:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:15,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 07:46:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:15,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:46:15,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:15,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 07:46:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:15,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 07:46:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:15,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 07:46:15,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:15,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 07:46:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:15,830 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-16 07:46:15,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:15,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319302875] [2024-11-16 07:46:15,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319302875] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:46:15,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224523439] [2024-11-16 07:46:15,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:15,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:46:15,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:46:15,834 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:46:15,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 07:46:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:16,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 07:46:16,137 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:46:16,174 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-16 07:46:16,177 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:46:16,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224523439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:16,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:46:16,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-16 07:46:16,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818767374] [2024-11-16 07:46:16,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:16,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 07:46:16,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:16,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 07:46:16,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:46:16,181 INFO L87 Difference]: Start difference. First operand 269 states and 400 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:16,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:16,223 INFO L93 Difference]: Finished difference Result 383 states and 557 transitions. [2024-11-16 07:46:16,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 07:46:16,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 87 [2024-11-16 07:46:16,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:16,226 INFO L225 Difference]: With dead ends: 383 [2024-11-16 07:46:16,226 INFO L226 Difference]: Without dead ends: 273 [2024-11-16 07:46:16,228 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:46:16,229 INFO L432 NwaCegarLoop]: 399 mSDtfsCounter, 0 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:16,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 796 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:46:16,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-16 07:46:16,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2024-11-16 07:46:16,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 222 states have (on average 1.509009009009009) internal successors, (335), 223 states have internal predecessors, (335), 35 states have call successors, (35), 15 states have call predecessors, (35), 15 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-16 07:46:16,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 404 transitions. [2024-11-16 07:46:16,261 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 404 transitions. Word has length 87 [2024-11-16 07:46:16,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:16,262 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 404 transitions. [2024-11-16 07:46:16,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:16,264 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 404 transitions. [2024-11-16 07:46:16,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 07:46:16,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:16,268 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-16 07:46:16,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 07:46:16,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-16 07:46:16,469 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:16,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:16,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1251251403, now seen corresponding path program 1 times [2024-11-16 07:46:16,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:16,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235437749] [2024-11-16 07:46:16,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:16,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:16,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:16,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:16,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:16,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:16,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:16,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 07:46:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:16,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 07:46:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:16,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:46:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:16,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-16 07:46:16,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:16,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 07:46:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:16,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 07:46:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:16,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 07:46:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:16,733 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 07:46:16,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:16,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235437749] [2024-11-16 07:46:16,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235437749] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:46:16,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668785205] [2024-11-16 07:46:16,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:16,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:46:16,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:46:16,739 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:46:16,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 07:46:17,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:17,018 INFO L255 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 07:46:17,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:46:17,049 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-16 07:46:17,051 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:46:17,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668785205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:17,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:46:17,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-16 07:46:17,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698753539] [2024-11-16 07:46:17,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:17,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 07:46:17,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:17,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 07:46:17,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:46:17,054 INFO L87 Difference]: Start difference. First operand 273 states and 404 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:17,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:17,081 INFO L93 Difference]: Finished difference Result 580 states and 868 transitions. [2024-11-16 07:46:17,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 07:46:17,082 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 95 [2024-11-16 07:46:17,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:17,086 INFO L225 Difference]: With dead ends: 580 [2024-11-16 07:46:17,086 INFO L226 Difference]: Without dead ends: 336 [2024-11-16 07:46:17,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:46:17,089 INFO L432 NwaCegarLoop]: 406 mSDtfsCounter, 109 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:17,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 758 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:46:17,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2024-11-16 07:46:17,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 328. [2024-11-16 07:46:17,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 266 states have (on average 1.5037593984962405) internal successors, (400), 267 states have internal predecessors, (400), 46 states have call successors, (46), 15 states have call predecessors, (46), 15 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-16 07:46:17,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 491 transitions. [2024-11-16 07:46:17,108 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 491 transitions. Word has length 95 [2024-11-16 07:46:17,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:17,109 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 491 transitions. [2024-11-16 07:46:17,109 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:17,109 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 491 transitions. [2024-11-16 07:46:17,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 07:46:17,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:17,112 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-16 07:46:17,130 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 07:46:17,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:46:17,317 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:17,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:17,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1219522498, now seen corresponding path program 1 times [2024-11-16 07:46:17,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:17,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998725564] [2024-11-16 07:46:17,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:17,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:17,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:17,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:17,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:17,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:17,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:17,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 07:46:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:17,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 07:46:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:17,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:46:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:17,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 07:46:17,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:17,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 07:46:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:17,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 07:46:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:17,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 07:46:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:17,504 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 07:46:17,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:17,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998725564] [2024-11-16 07:46:17,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998725564] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:46:17,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593883623] [2024-11-16 07:46:17,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:17,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:46:17,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:46:17,506 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:46:17,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 07:46:17,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:17,770 INFO L255 TraceCheckSpWp]: Trace formula consists of 913 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-16 07:46:17,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:46:17,864 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-16 07:46:17,864 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:46:17,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593883623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:17,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:46:17,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-16 07:46:17,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406560197] [2024-11-16 07:46:17,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:17,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 07:46:17,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:17,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 07:46:17,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-16 07:46:17,867 INFO L87 Difference]: Start difference. First operand 328 states and 491 transitions. Second operand has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-16 07:46:17,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:17,934 INFO L93 Difference]: Finished difference Result 647 states and 972 transitions. [2024-11-16 07:46:17,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 07:46:17,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 96 [2024-11-16 07:46:17,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:17,940 INFO L225 Difference]: With dead ends: 647 [2024-11-16 07:46:17,941 INFO L226 Difference]: Without dead ends: 330 [2024-11-16 07:46:17,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-16 07:46:17,944 INFO L432 NwaCegarLoop]: 392 mSDtfsCounter, 2 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:17,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1557 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:46:17,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-11-16 07:46:17,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2024-11-16 07:46:17,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 267 states have (on average 1.5018726591760299) internal successors, (401), 269 states have internal predecessors, (401), 46 states have call successors, (46), 15 states have call predecessors, (46), 16 states have return successors, (47), 45 states have call predecessors, (47), 45 states have call successors, (47) [2024-11-16 07:46:17,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 494 transitions. [2024-11-16 07:46:17,974 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 494 transitions. Word has length 96 [2024-11-16 07:46:17,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:17,975 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 494 transitions. [2024-11-16 07:46:17,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-16 07:46:17,977 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 494 transitions. [2024-11-16 07:46:17,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-16 07:46:17,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:17,979 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-16 07:46:18,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-16 07:46:18,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:46:18,183 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:18,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:18,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1265323176, now seen corresponding path program 1 times [2024-11-16 07:46:18,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:18,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199154336] [2024-11-16 07:46:18,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:18,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:18,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:18,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:18,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:18,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:18,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:46:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:18,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 07:46:18,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:18,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 07:46:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:18,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 07:46:18,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:18,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 07:46:18,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:18,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 07:46:18,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:18,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 07:46:18,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:18,438 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 07:46:18,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:18,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199154336] [2024-11-16 07:46:18,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199154336] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:46:18,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282492330] [2024-11-16 07:46:18,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:18,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:46:18,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:46:18,440 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:46:18,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 07:46:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:18,690 INFO L255 TraceCheckSpWp]: Trace formula consists of 914 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 07:46:18,694 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:46:18,749 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-16 07:46:18,749 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:46:18,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282492330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:18,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:46:18,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2024-11-16 07:46:18,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090974792] [2024-11-16 07:46:18,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:18,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 07:46:18,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:18,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 07:46:18,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-16 07:46:18,752 INFO L87 Difference]: Start difference. First operand 330 states and 494 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-16 07:46:18,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:18,821 INFO L93 Difference]: Finished difference Result 649 states and 977 transitions. [2024-11-16 07:46:18,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 07:46:18,822 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 97 [2024-11-16 07:46:18,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:18,824 INFO L225 Difference]: With dead ends: 649 [2024-11-16 07:46:18,825 INFO L226 Difference]: Without dead ends: 332 [2024-11-16 07:46:18,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-16 07:46:18,827 INFO L432 NwaCegarLoop]: 390 mSDtfsCounter, 2 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1543 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:18,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1543 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:46:18,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-11-16 07:46:18,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2024-11-16 07:46:18,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 268 states have (on average 1.5) internal successors, (402), 271 states have internal predecessors, (402), 46 states have call successors, (46), 15 states have call predecessors, (46), 17 states have return successors, (52), 45 states have call predecessors, (52), 45 states have call successors, (52) [2024-11-16 07:46:18,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 500 transitions. [2024-11-16 07:46:18,842 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 500 transitions. Word has length 97 [2024-11-16 07:46:18,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:18,842 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 500 transitions. [2024-11-16 07:46:18,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-16 07:46:18,842 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 500 transitions. [2024-11-16 07:46:18,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-16 07:46:18,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:18,847 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:46:18,863 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 07:46:19,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:46:19,051 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:19,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:19,051 INFO L85 PathProgramCache]: Analyzing trace with hash 326218442, now seen corresponding path program 1 times [2024-11-16 07:46:19,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:19,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008887062] [2024-11-16 07:46:19,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:19,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:19,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:19,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:19,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:19,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:19,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:46:19,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:19,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:46:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:19,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 07:46:19,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:19,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 07:46:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:19,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 07:46:19,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:19,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 07:46:19,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:19,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 07:46:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:19,233 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 07:46:19,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:19,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008887062] [2024-11-16 07:46:19,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008887062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:19,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:46:19,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 07:46:19,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124721305] [2024-11-16 07:46:19,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:19,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 07:46:19,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:19,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 07:46:19,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 07:46:19,236 INFO L87 Difference]: Start difference. First operand 332 states and 500 transitions. Second operand has 8 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-16 07:46:20,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:20,521 INFO L93 Difference]: Finished difference Result 703 states and 1068 transitions. [2024-11-16 07:46:20,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:46:20,522 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 98 [2024-11-16 07:46:20,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:20,525 INFO L225 Difference]: With dead ends: 703 [2024-11-16 07:46:20,526 INFO L226 Difference]: Without dead ends: 394 [2024-11-16 07:46:20,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-16 07:46:20,529 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 605 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 1539 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 1678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:20,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 1003 Invalid, 1678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1539 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 07:46:20,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-16 07:46:20,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 332. [2024-11-16 07:46:20,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 268 states have (on average 1.5) internal successors, (402), 271 states have internal predecessors, (402), 46 states have call successors, (46), 15 states have call predecessors, (46), 17 states have return successors, (51), 45 states have call predecessors, (51), 45 states have call successors, (51) [2024-11-16 07:46:20,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 499 transitions. [2024-11-16 07:46:20,565 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 499 transitions. Word has length 98 [2024-11-16 07:46:20,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:20,565 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 499 transitions. [2024-11-16 07:46:20,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-16 07:46:20,566 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 499 transitions. [2024-11-16 07:46:20,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-16 07:46:20,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:20,567 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:46:20,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 07:46:20,568 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:20,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:20,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1579836594, now seen corresponding path program 2 times [2024-11-16 07:46:20,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:20,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226741122] [2024-11-16 07:46:20,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:20,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:20,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:20,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:20,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:20,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:20,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:20,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:46:20,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:20,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:46:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:20,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 07:46:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:20,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 07:46:20,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:20,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 07:46:20,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:20,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 07:46:20,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:20,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-16 07:46:20,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:20,760 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 07:46:20,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:20,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226741122] [2024-11-16 07:46:20,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226741122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:20,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:46:20,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 07:46:20,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106774523] [2024-11-16 07:46:20,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:20,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 07:46:20,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:20,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 07:46:20,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 07:46:20,763 INFO L87 Difference]: Start difference. First operand 332 states and 499 transitions. Second operand has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-16 07:46:21,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:21,940 INFO L93 Difference]: Finished difference Result 705 states and 1071 transitions. [2024-11-16 07:46:21,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:46:21,942 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 99 [2024-11-16 07:46:21,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:21,945 INFO L225 Difference]: With dead ends: 705 [2024-11-16 07:46:21,945 INFO L226 Difference]: Without dead ends: 396 [2024-11-16 07:46:21,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-16 07:46:21,947 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 602 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 1689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:21,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 1003 Invalid, 1689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1550 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 07:46:21,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-16 07:46:21,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 334. [2024-11-16 07:46:21,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 269 states have (on average 1.4981412639405205) internal successors, (403), 273 states have internal predecessors, (403), 46 states have call successors, (46), 15 states have call predecessors, (46), 18 states have return successors, (53), 45 states have call predecessors, (53), 45 states have call successors, (53) [2024-11-16 07:46:21,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 502 transitions. [2024-11-16 07:46:21,966 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 502 transitions. Word has length 99 [2024-11-16 07:46:21,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:21,966 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 502 transitions. [2024-11-16 07:46:21,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-16 07:46:21,966 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 502 transitions. [2024-11-16 07:46:21,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-16 07:46:21,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:21,968 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:46:21,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 07:46:21,968 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:21,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:21,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1026500825, now seen corresponding path program 1 times [2024-11-16 07:46:21,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:21,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17655117] [2024-11-16 07:46:21,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:21,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:21,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:22,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:22,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:22,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:22,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:22,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:46:22,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:22,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:46:22,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:22,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:46:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:22,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 07:46:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:22,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-16 07:46:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:22,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 07:46:22,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:22,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 07:46:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:22,155 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 07:46:22,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:22,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17655117] [2024-11-16 07:46:22,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17655117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:22,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:46:22,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 07:46:22,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895375870] [2024-11-16 07:46:22,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:22,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 07:46:22,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:22,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 07:46:22,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-16 07:46:22,157 INFO L87 Difference]: Start difference. First operand 334 states and 502 transitions. Second operand has 11 states, 10 states have (on average 6.8) internal successors, (68), 8 states have internal predecessors, (68), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-16 07:46:23,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:23,756 INFO L93 Difference]: Finished difference Result 703 states and 1066 transitions. [2024-11-16 07:46:23,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 07:46:23,757 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.8) internal successors, (68), 8 states have internal predecessors, (68), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 100 [2024-11-16 07:46:23,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:23,760 INFO L225 Difference]: With dead ends: 703 [2024-11-16 07:46:23,760 INFO L226 Difference]: Without dead ends: 396 [2024-11-16 07:46:23,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2024-11-16 07:46:23,763 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 605 mSDsluCounter, 1261 mSDsCounter, 0 mSdLazyCounter, 2601 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 1439 SdHoareTripleChecker+Invalid, 2745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 2601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:23,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 1439 Invalid, 2745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 2601 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 07:46:23,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-16 07:46:23,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 334. [2024-11-16 07:46:23,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 269 states have (on average 1.4981412639405205) internal successors, (403), 273 states have internal predecessors, (403), 46 states have call successors, (46), 15 states have call predecessors, (46), 18 states have return successors, (52), 45 states have call predecessors, (52), 45 states have call successors, (52) [2024-11-16 07:46:23,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 501 transitions. [2024-11-16 07:46:23,789 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 501 transitions. Word has length 100 [2024-11-16 07:46:23,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:23,790 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 501 transitions. [2024-11-16 07:46:23,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.8) internal successors, (68), 8 states have internal predecessors, (68), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-16 07:46:23,790 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 501 transitions. [2024-11-16 07:46:23,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-16 07:46:23,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:23,793 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:46:23,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 07:46:23,793 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:23,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:23,793 INFO L85 PathProgramCache]: Analyzing trace with hash -120499435, now seen corresponding path program 2 times [2024-11-16 07:46:23,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:23,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720236516] [2024-11-16 07:46:23,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:23,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:23,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:23,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:23,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:23,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:23,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:23,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:46:23,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:23,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:46:23,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:24,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:46:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:24,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 07:46:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:24,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 07:46:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:24,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 07:46:24,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:24,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 07:46:24,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:24,071 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 07:46:24,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:24,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720236516] [2024-11-16 07:46:24,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720236516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:24,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:46:24,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 07:46:24,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78542451] [2024-11-16 07:46:24,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:24,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 07:46:24,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:24,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 07:46:24,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-16 07:46:24,073 INFO L87 Difference]: Start difference. First operand 334 states and 501 transitions. Second operand has 11 states, 10 states have (on average 6.9) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-16 07:46:25,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:25,671 INFO L93 Difference]: Finished difference Result 705 states and 1072 transitions. [2024-11-16 07:46:25,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 07:46:25,672 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.9) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 101 [2024-11-16 07:46:25,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:25,674 INFO L225 Difference]: With dead ends: 705 [2024-11-16 07:46:25,674 INFO L226 Difference]: Without dead ends: 398 [2024-11-16 07:46:25,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2024-11-16 07:46:25,676 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 602 mSDsluCounter, 1261 mSDsCounter, 0 mSdLazyCounter, 2635 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 2777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 2635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:25,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 1440 Invalid, 2777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 2635 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 07:46:25,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-11-16 07:46:25,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 336. [2024-11-16 07:46:25,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 270 states have (on average 1.4962962962962962) internal successors, (404), 275 states have internal predecessors, (404), 46 states have call successors, (46), 15 states have call predecessors, (46), 19 states have return successors, (57), 45 states have call predecessors, (57), 45 states have call successors, (57) [2024-11-16 07:46:25,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 507 transitions. [2024-11-16 07:46:25,697 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 507 transitions. Word has length 101 [2024-11-16 07:46:25,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:25,697 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 507 transitions. [2024-11-16 07:46:25,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.9) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-16 07:46:25,698 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 507 transitions. [2024-11-16 07:46:25,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 07:46:25,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:25,699 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:46:25,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 07:46:25,699 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:25,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:25,700 INFO L85 PathProgramCache]: Analyzing trace with hash -295579004, now seen corresponding path program 1 times [2024-11-16 07:46:25,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:25,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110919535] [2024-11-16 07:46:25,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:25,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:25,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:25,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:25,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:25,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:25,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:25,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:25,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:46:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:25,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:46:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:25,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:46:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:25,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 07:46:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:25,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 07:46:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:25,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 07:46:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:25,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 07:46:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:25,820 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:46:25,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:25,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110919535] [2024-11-16 07:46:25,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110919535] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:46:25,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735996118] [2024-11-16 07:46:25,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:25,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:46:25,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:46:25,822 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:46:25,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 07:46:26,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:26,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 07:46:26,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:46:26,118 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:46:26,118 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 07:46:26,221 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:46:26,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735996118] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 07:46:26,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 07:46:26,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2024-11-16 07:46:26,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351095656] [2024-11-16 07:46:26,222 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 07:46:26,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 07:46:26,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:26,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 07:46:26,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:46:26,225 INFO L87 Difference]: Start difference. First operand 336 states and 507 transitions. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 7 states have internal predecessors, (97), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:46:27,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:27,391 INFO L93 Difference]: Finished difference Result 892 states and 1403 transitions. [2024-11-16 07:46:27,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 07:46:27,392 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 7 states have internal predecessors, (97), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 102 [2024-11-16 07:46:27,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:27,396 INFO L225 Difference]: With dead ends: 892 [2024-11-16 07:46:27,396 INFO L226 Difference]: Without dead ends: 782 [2024-11-16 07:46:27,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-16 07:46:27,397 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 1172 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 1588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:27,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1217 Valid, 1192 Invalid, 1588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 07:46:27,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2024-11-16 07:46:27,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 696. [2024-11-16 07:46:27,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 566 states have (on average 1.517667844522968) internal successors, (859), 571 states have internal predecessors, (859), 110 states have call successors, (110), 15 states have call predecessors, (110), 19 states have return successors, (131), 109 states have call predecessors, (131), 109 states have call successors, (131) [2024-11-16 07:46:27,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 1100 transitions. [2024-11-16 07:46:27,429 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 1100 transitions. Word has length 102 [2024-11-16 07:46:27,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:27,429 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 1100 transitions. [2024-11-16 07:46:27,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 7 states have internal predecessors, (97), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:46:27,429 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 1100 transitions. [2024-11-16 07:46:27,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 07:46:27,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:27,433 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:46:27,451 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-16 07:46:27,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:46:27,634 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:27,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:27,634 INFO L85 PathProgramCache]: Analyzing trace with hash -389742363, now seen corresponding path program 1 times [2024-11-16 07:46:27,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:27,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565292338] [2024-11-16 07:46:27,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:27,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:27,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:27,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:27,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:27,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:46:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:27,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:46:27,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:27,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:46:27,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:27,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 07:46:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:27,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 07:46:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:27,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 07:46:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:27,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 07:46:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:27,746 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:46:27,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:27,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565292338] [2024-11-16 07:46:27,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565292338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:27,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:46:27,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:46:27,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693875896] [2024-11-16 07:46:27,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:27,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:46:27,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:27,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:46:27,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:46:27,749 INFO L87 Difference]: Start difference. First operand 696 states and 1100 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:28,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:28,620 INFO L93 Difference]: Finished difference Result 1749 states and 2818 transitions. [2024-11-16 07:46:28,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 07:46:28,621 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 115 [2024-11-16 07:46:28,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:28,631 INFO L225 Difference]: With dead ends: 1749 [2024-11-16 07:46:28,631 INFO L226 Difference]: Without dead ends: 1125 [2024-11-16 07:46:28,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:46:28,634 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 707 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:28,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [722 Valid, 752 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 07:46:28,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2024-11-16 07:46:28,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 1055. [2024-11-16 07:46:28,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1055 states, 861 states have (on average 1.51335656213705) internal successors, (1303), 866 states have internal predecessors, (1303), 174 states have call successors, (174), 15 states have call predecessors, (174), 19 states have return successors, (205), 173 states have call predecessors, (205), 173 states have call successors, (205) [2024-11-16 07:46:28,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1682 transitions. [2024-11-16 07:46:28,687 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1682 transitions. Word has length 115 [2024-11-16 07:46:28,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:28,687 INFO L471 AbstractCegarLoop]: Abstraction has 1055 states and 1682 transitions. [2024-11-16 07:46:28,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:28,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1682 transitions. [2024-11-16 07:46:28,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-16 07:46:28,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:28,693 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:46:28,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 07:46:28,693 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:28,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:28,694 INFO L85 PathProgramCache]: Analyzing trace with hash 507600640, now seen corresponding path program 1 times [2024-11-16 07:46:28,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:28,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927435282] [2024-11-16 07:46:28,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:28,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:28,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:28,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:28,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:28,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:28,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:46:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:28,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:46:28,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:28,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:46:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:28,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 07:46:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:28,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 07:46:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:28,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 07:46:28,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:28,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 07:46:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:28,798 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:46:28,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:28,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927435282] [2024-11-16 07:46:28,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927435282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:28,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:46:28,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:46:28,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533920362] [2024-11-16 07:46:28,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:28,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:46:28,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:28,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:46:28,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:46:28,800 INFO L87 Difference]: Start difference. First operand 1055 states and 1682 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:29,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:29,556 INFO L93 Difference]: Finished difference Result 2611 states and 4210 transitions. [2024-11-16 07:46:29,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 07:46:29,556 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 116 [2024-11-16 07:46:29,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:29,565 INFO L225 Difference]: With dead ends: 2611 [2024-11-16 07:46:29,566 INFO L226 Difference]: Without dead ends: 1689 [2024-11-16 07:46:29,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:46:29,571 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 704 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:29,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 708 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 853 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 07:46:29,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2024-11-16 07:46:29,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1619. [2024-11-16 07:46:29,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1619 states, 1330 states have (on average 1.5082706766917293) internal successors, (2006), 1335 states have internal predecessors, (2006), 269 states have call successors, (269), 15 states have call predecessors, (269), 19 states have return successors, (300), 268 states have call predecessors, (300), 268 states have call successors, (300) [2024-11-16 07:46:29,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 2575 transitions. [2024-11-16 07:46:29,639 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 2575 transitions. Word has length 116 [2024-11-16 07:46:29,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:29,639 INFO L471 AbstractCegarLoop]: Abstraction has 1619 states and 2575 transitions. [2024-11-16 07:46:29,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:29,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 2575 transitions. [2024-11-16 07:46:29,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 07:46:29,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:29,646 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:46:29,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 07:46:29,646 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:29,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:29,646 INFO L85 PathProgramCache]: Analyzing trace with hash -499663547, now seen corresponding path program 1 times [2024-11-16 07:46:29,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:29,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007928085] [2024-11-16 07:46:29,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:29,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:29,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:29,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:29,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:29,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:29,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:29,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:29,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:46:29,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:29,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:46:29,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:29,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:46:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:29,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-16 07:46:29,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:29,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-16 07:46:29,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:29,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 07:46:29,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:29,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 07:46:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:29,738 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:46:29,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:29,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007928085] [2024-11-16 07:46:29,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007928085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:29,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:46:29,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:46:29,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276352576] [2024-11-16 07:46:29,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:29,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:46:29,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:29,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:46:29,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:46:29,740 INFO L87 Difference]: Start difference. First operand 1619 states and 2575 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:30,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:30,541 INFO L93 Difference]: Finished difference Result 3893 states and 6286 transitions. [2024-11-16 07:46:30,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 07:46:30,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 117 [2024-11-16 07:46:30,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:30,555 INFO L225 Difference]: With dead ends: 3893 [2024-11-16 07:46:30,555 INFO L226 Difference]: Without dead ends: 2550 [2024-11-16 07:46:30,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:46:30,561 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 701 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 1025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:30,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 701 Invalid, 1025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 07:46:30,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2550 states. [2024-11-16 07:46:30,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2550 to 2480. [2024-11-16 07:46:30,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2480 states, 2068 states have (on average 1.5038684719535784) internal successors, (3110), 2073 states have internal predecessors, (3110), 392 states have call successors, (392), 15 states have call predecessors, (392), 19 states have return successors, (439), 391 states have call predecessors, (439), 391 states have call successors, (439) [2024-11-16 07:46:30,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2480 states to 2480 states and 3941 transitions. [2024-11-16 07:46:30,649 INFO L78 Accepts]: Start accepts. Automaton has 2480 states and 3941 transitions. Word has length 117 [2024-11-16 07:46:30,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:30,649 INFO L471 AbstractCegarLoop]: Abstraction has 2480 states and 3941 transitions. [2024-11-16 07:46:30,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:30,650 INFO L276 IsEmpty]: Start isEmpty. Operand 2480 states and 3941 transitions. [2024-11-16 07:46:30,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 07:46:30,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:30,657 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:46:30,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 07:46:30,658 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:30,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:30,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1370218240, now seen corresponding path program 1 times [2024-11-16 07:46:30,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:30,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160930540] [2024-11-16 07:46:30,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:30,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:30,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:30,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:30,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:30,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:30,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:30,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:30,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:46:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:30,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:46:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:30,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:46:30,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:30,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 07:46:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:30,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-16 07:46:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:30,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 07:46:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:30,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 07:46:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:30,756 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:46:30,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:30,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160930540] [2024-11-16 07:46:30,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160930540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:30,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:46:30,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:46:30,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734328382] [2024-11-16 07:46:30,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:30,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:46:30,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:30,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:46:30,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:46:30,758 INFO L87 Difference]: Start difference. First operand 2480 states and 3941 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:31,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:31,590 INFO L93 Difference]: Finished difference Result 5900 states and 9528 transitions. [2024-11-16 07:46:31,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 07:46:31,590 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 118 [2024-11-16 07:46:31,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:31,612 INFO L225 Difference]: With dead ends: 5900 [2024-11-16 07:46:31,613 INFO L226 Difference]: Without dead ends: 3933 [2024-11-16 07:46:31,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:46:31,621 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 698 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 1023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:31,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 701 Invalid, 1023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 07:46:31,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3933 states. [2024-11-16 07:46:31,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3933 to 3863. [2024-11-16 07:46:31,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3863 states, 3272 states have (on average 1.499083129584352) internal successors, (4905), 3277 states have internal predecessors, (4905), 571 states have call successors, (571), 15 states have call predecessors, (571), 19 states have return successors, (644), 570 states have call predecessors, (644), 570 states have call successors, (644) [2024-11-16 07:46:31,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3863 states to 3863 states and 6120 transitions. [2024-11-16 07:46:31,804 INFO L78 Accepts]: Start accepts. Automaton has 3863 states and 6120 transitions. Word has length 118 [2024-11-16 07:46:31,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:31,804 INFO L471 AbstractCegarLoop]: Abstraction has 3863 states and 6120 transitions. [2024-11-16 07:46:31,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:31,805 INFO L276 IsEmpty]: Start isEmpty. Operand 3863 states and 6120 transitions. [2024-11-16 07:46:31,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 07:46:31,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:31,814 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:46:31,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 07:46:31,814 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:31,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:31,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1455711749, now seen corresponding path program 1 times [2024-11-16 07:46:31,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:31,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354132629] [2024-11-16 07:46:31,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:31,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:31,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:31,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:31,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:31,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:31,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:46:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:31,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:46:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:31,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:46:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:31,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 07:46:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:31,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 07:46:31,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:31,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 07:46:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:31,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 07:46:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:31,901 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:46:31,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:31,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354132629] [2024-11-16 07:46:31,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354132629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:31,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:46:31,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:46:31,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701677019] [2024-11-16 07:46:31,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:31,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:46:31,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:31,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:46:31,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:46:31,903 INFO L87 Difference]: Start difference. First operand 3863 states and 6120 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:32,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:32,703 INFO L93 Difference]: Finished difference Result 9490 states and 15299 transitions. [2024-11-16 07:46:32,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 07:46:32,707 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 119 [2024-11-16 07:46:32,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:32,737 INFO L225 Difference]: With dead ends: 9490 [2024-11-16 07:46:32,737 INFO L226 Difference]: Without dead ends: 6425 [2024-11-16 07:46:32,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:46:32,747 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 695 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:32,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [710 Valid, 730 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 07:46:32,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6425 states. [2024-11-16 07:46:32,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6425 to 6355. [2024-11-16 07:46:32,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6355 states, 5388 states have (on average 1.488121752041574) internal successors, (8018), 5393 states have internal predecessors, (8018), 947 states have call successors, (947), 15 states have call predecessors, (947), 19 states have return successors, (1064), 946 states have call predecessors, (1064), 946 states have call successors, (1064) [2024-11-16 07:46:32,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6355 states to 6355 states and 10029 transitions. [2024-11-16 07:46:32,998 INFO L78 Accepts]: Start accepts. Automaton has 6355 states and 10029 transitions. Word has length 119 [2024-11-16 07:46:32,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:33,000 INFO L471 AbstractCegarLoop]: Abstraction has 6355 states and 10029 transitions. [2024-11-16 07:46:33,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:33,000 INFO L276 IsEmpty]: Start isEmpty. Operand 6355 states and 10029 transitions. [2024-11-16 07:46:33,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 07:46:33,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:33,011 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:46:33,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 07:46:33,011 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:33,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:33,012 INFO L85 PathProgramCache]: Analyzing trace with hash 281401920, now seen corresponding path program 1 times [2024-11-16 07:46:33,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:33,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550460636] [2024-11-16 07:46:33,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:33,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:33,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:33,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:33,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:33,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:33,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:33,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:33,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:33,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:46:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:33,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:46:33,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:33,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:46:33,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:33,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 07:46:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:33,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 07:46:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:33,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 07:46:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:33,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 07:46:33,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:33,166 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:46:33,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:33,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550460636] [2024-11-16 07:46:33,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550460636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:33,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:46:33,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:46:33,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466064432] [2024-11-16 07:46:33,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:33,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:46:33,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:33,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:46:33,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:46:33,169 INFO L87 Difference]: Start difference. First operand 6355 states and 10029 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:34,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:34,079 INFO L93 Difference]: Finished difference Result 15851 states and 25427 transitions. [2024-11-16 07:46:34,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 07:46:34,079 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 120 [2024-11-16 07:46:34,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:34,132 INFO L225 Difference]: With dead ends: 15851 [2024-11-16 07:46:34,133 INFO L226 Difference]: Without dead ends: 10749 [2024-11-16 07:46:34,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:46:34,150 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 692 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:34,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 708 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 07:46:34,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10749 states. [2024-11-16 07:46:34,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10749 to 10679. [2024-11-16 07:46:34,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10679 states, 9106 states have (on average 1.481221172853064) internal successors, (13488), 9111 states have internal predecessors, (13488), 1553 states have call successors, (1553), 15 states have call predecessors, (1553), 19 states have return successors, (1748), 1552 states have call predecessors, (1748), 1552 states have call successors, (1748) [2024-11-16 07:46:34,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10679 states to 10679 states and 16789 transitions. [2024-11-16 07:46:34,560 INFO L78 Accepts]: Start accepts. Automaton has 10679 states and 16789 transitions. Word has length 120 [2024-11-16 07:46:34,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:34,560 INFO L471 AbstractCegarLoop]: Abstraction has 10679 states and 16789 transitions. [2024-11-16 07:46:34,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:34,561 INFO L276 IsEmpty]: Start isEmpty. Operand 10679 states and 16789 transitions. [2024-11-16 07:46:34,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 07:46:34,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:34,576 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] [2024-11-16 07:46:34,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 07:46:34,576 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:34,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:34,577 INFO L85 PathProgramCache]: Analyzing trace with hash 679517797, now seen corresponding path program 1 times [2024-11-16 07:46:34,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:34,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844157346] [2024-11-16 07:46:34,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:34,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:34,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:34,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:34,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:34,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:46:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:34,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:46:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:34,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:46:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:34,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 07:46:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:34,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 07:46:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:34,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 07:46:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:34,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-16 07:46:34,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:34,680 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:46:34,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:34,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844157346] [2024-11-16 07:46:34,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844157346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:34,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:46:34,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:46:34,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258647449] [2024-11-16 07:46:34,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:34,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:46:34,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:34,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:46:34,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:46:34,683 INFO L87 Difference]: Start difference. First operand 10679 states and 16789 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:35,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:35,782 INFO L93 Difference]: Finished difference Result 27803 states and 44426 transitions. [2024-11-16 07:46:35,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 07:46:35,783 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 121 [2024-11-16 07:46:35,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:35,859 INFO L225 Difference]: With dead ends: 27803 [2024-11-16 07:46:35,859 INFO L226 Difference]: Without dead ends: 18907 [2024-11-16 07:46:35,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:46:35,890 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 689 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:35,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 725 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 07:46:35,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18907 states. [2024-11-16 07:46:36,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18907 to 18837. [2024-11-16 07:46:36,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18837 states, 16061 states have (on average 1.4705809102795593) internal successors, (23619), 16066 states have internal predecessors, (23619), 2756 states have call successors, (2756), 15 states have call predecessors, (2756), 19 states have return successors, (3095), 2755 states have call predecessors, (3095), 2755 states have call successors, (3095) [2024-11-16 07:46:36,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18837 states to 18837 states and 29470 transitions. [2024-11-16 07:46:36,596 INFO L78 Accepts]: Start accepts. Automaton has 18837 states and 29470 transitions. Word has length 121 [2024-11-16 07:46:36,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:36,597 INFO L471 AbstractCegarLoop]: Abstraction has 18837 states and 29470 transitions. [2024-11-16 07:46:36,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:36,597 INFO L276 IsEmpty]: Start isEmpty. Operand 18837 states and 29470 transitions. [2024-11-16 07:46:36,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-16 07:46:36,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:36,617 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] [2024-11-16 07:46:36,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 07:46:36,618 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:36,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:36,618 INFO L85 PathProgramCache]: Analyzing trace with hash -197935232, now seen corresponding path program 1 times [2024-11-16 07:46:36,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:36,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591750942] [2024-11-16 07:46:36,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:36,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:36,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:36,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:36,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:36,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:36,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:46:36,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:36,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:46:36,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:36,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:46:36,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:36,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 07:46:36,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:36,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 07:46:36,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:36,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 07:46:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:36,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 07:46:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:36,711 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:46:36,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:36,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591750942] [2024-11-16 07:46:36,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591750942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:36,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:46:36,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:46:36,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818774652] [2024-11-16 07:46:36,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:36,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:46:36,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:36,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:46:36,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:46:36,715 INFO L87 Difference]: Start difference. First operand 18837 states and 29470 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:38,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:38,006 INFO L93 Difference]: Finished difference Result 50181 states and 79831 transitions. [2024-11-16 07:46:38,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 07:46:38,007 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 122 [2024-11-16 07:46:38,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:38,135 INFO L225 Difference]: With dead ends: 50181 [2024-11-16 07:46:38,135 INFO L226 Difference]: Without dead ends: 33877 [2024-11-16 07:46:38,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:46:38,177 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 686 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:38,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 702 Invalid, 1032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 07:46:38,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33877 states. [2024-11-16 07:46:39,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33877 to 33807. [2024-11-16 07:46:39,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33807 states, 28992 states have (on average 1.463403697571744) internal successors, (42427), 28997 states have internal predecessors, (42427), 4795 states have call successors, (4795), 15 states have call predecessors, (4795), 19 states have return successors, (5408), 4794 states have call predecessors, (5408), 4794 states have call successors, (5408) [2024-11-16 07:46:39,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33807 states to 33807 states and 52630 transitions. [2024-11-16 07:46:39,594 INFO L78 Accepts]: Start accepts. Automaton has 33807 states and 52630 transitions. Word has length 122 [2024-11-16 07:46:39,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:39,594 INFO L471 AbstractCegarLoop]: Abstraction has 33807 states and 52630 transitions. [2024-11-16 07:46:39,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:39,595 INFO L276 IsEmpty]: Start isEmpty. Operand 33807 states and 52630 transitions. [2024-11-16 07:46:39,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 07:46:39,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:39,612 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] [2024-11-16 07:46:39,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 07:46:39,612 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:39,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:39,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1992320347, now seen corresponding path program 1 times [2024-11-16 07:46:39,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:39,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485941132] [2024-11-16 07:46:39,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:39,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:39,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:39,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:39,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:39,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:39,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:39,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:46:39,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:39,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:46:39,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:39,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:46:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:39,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 07:46:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:39,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 07:46:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:39,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 07:46:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:39,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 07:46:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:39,701 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:46:39,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:39,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485941132] [2024-11-16 07:46:39,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485941132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:39,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:46:39,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:46:39,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708069017] [2024-11-16 07:46:39,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:39,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:46:39,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:39,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:46:39,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:46:39,703 INFO L87 Difference]: Start difference. First operand 33807 states and 52630 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:41,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:41,587 INFO L93 Difference]: Finished difference Result 92630 states and 146092 transitions. [2024-11-16 07:46:41,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 07:46:41,587 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 123 [2024-11-16 07:46:41,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:41,813 INFO L225 Difference]: With dead ends: 92630 [2024-11-16 07:46:41,813 INFO L226 Difference]: Without dead ends: 62271 [2024-11-16 07:46:41,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:46:41,897 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 683 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:41,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 712 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 07:46:41,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62271 states. [2024-11-16 07:46:44,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62271 to 62201. [2024-11-16 07:46:44,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62201 states, 53671 states have (on average 1.45540422201934) internal successors, (78113), 53676 states have internal predecessors, (78113), 8510 states have call successors, (8510), 15 states have call predecessors, (8510), 19 states have return successors, (9655), 8509 states have call predecessors, (9655), 8509 states have call successors, (9655) [2024-11-16 07:46:44,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62201 states to 62201 states and 96278 transitions. [2024-11-16 07:46:45,007 INFO L78 Accepts]: Start accepts. Automaton has 62201 states and 96278 transitions. Word has length 123 [2024-11-16 07:46:45,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:45,015 INFO L471 AbstractCegarLoop]: Abstraction has 62201 states and 96278 transitions. [2024-11-16 07:46:45,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:45,015 INFO L276 IsEmpty]: Start isEmpty. Operand 62201 states and 96278 transitions. [2024-11-16 07:46:45,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 07:46:45,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:45,066 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] [2024-11-16 07:46:45,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 07:46:45,066 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:45,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:45,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1719349984, now seen corresponding path program 1 times [2024-11-16 07:46:45,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:45,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746955229] [2024-11-16 07:46:45,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:45,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:45,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:45,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:45,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:45,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:45,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:46:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:45,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:46:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:45,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:46:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:45,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 07:46:45,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:45,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 07:46:45,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:45,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 07:46:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:45,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 07:46:45,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:45,163 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:46:45,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:45,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746955229] [2024-11-16 07:46:45,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746955229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:45,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:46:45,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:46:45,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121713841] [2024-11-16 07:46:45,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:45,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:46:45,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:45,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:46:45,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:46:45,166 INFO L87 Difference]: Start difference. First operand 62201 states and 96278 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:47,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:47,581 INFO L93 Difference]: Finished difference Result 116728 states and 183835 transitions. [2024-11-16 07:46:47,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 07:46:47,582 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 124 [2024-11-16 07:46:47,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:47,975 INFO L225 Difference]: With dead ends: 116728 [2024-11-16 07:46:47,976 INFO L226 Difference]: Without dead ends: 116618 [2024-11-16 07:46:48,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:46:48,021 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 677 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:48,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 734 Invalid, 1035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 07:46:48,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116618 states. [2024-11-16 07:46:51,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116618 to 116548. [2024-11-16 07:46:51,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116548 states, 101219 states have (on average 1.4463885238937353) internal successors, (146402), 101224 states have internal predecessors, (146402), 15309 states have call successors, (15309), 15 states have call predecessors, (15309), 19 states have return successors, (17500), 15308 states have call predecessors, (17500), 15308 states have call successors, (17500) [2024-11-16 07:46:51,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116548 states to 116548 states and 179211 transitions. [2024-11-16 07:46:51,953 INFO L78 Accepts]: Start accepts. Automaton has 116548 states and 179211 transitions. Word has length 124 [2024-11-16 07:46:51,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:51,954 INFO L471 AbstractCegarLoop]: Abstraction has 116548 states and 179211 transitions. [2024-11-16 07:46:51,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 07:46:51,954 INFO L276 IsEmpty]: Start isEmpty. Operand 116548 states and 179211 transitions. [2024-11-16 07:46:51,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-16 07:46:51,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:46:51,973 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] [2024-11-16 07:46:51,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 07:46:51,974 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:46:51,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:46:51,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1738554085, now seen corresponding path program 1 times [2024-11-16 07:46:51,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:46:51,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477016621] [2024-11-16 07:46:51,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:46:51,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:46:52,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:52,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:46:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:52,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:46:52,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:52,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:46:52,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:52,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:46:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:52,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:46:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:52,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:46:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:52,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 07:46:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:52,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 07:46:52,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:52,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 07:46:52,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:52,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 07:46:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:46:52,221 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:46:52,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:46:52,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477016621] [2024-11-16 07:46:52,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477016621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:46:52,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:46:52,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 07:46:52,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065455599] [2024-11-16 07:46:52,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:46:52,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 07:46:52,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:46:52,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 07:46:52,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:46:52,224 INFO L87 Difference]: Start difference. First operand 116548 states and 179211 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 6 states have internal predecessors, (90), 1 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-16 07:46:55,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:46:55,531 INFO L93 Difference]: Finished difference Result 116607 states and 182579 transitions. [2024-11-16 07:46:55,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 07:46:55,532 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 6 states have internal predecessors, (90), 1 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 125 [2024-11-16 07:46:55,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:46:55,558 INFO L225 Difference]: With dead ends: 116607 [2024-11-16 07:46:55,558 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 07:46:55,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2024-11-16 07:46:55,735 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 592 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 2202 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 2338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 2202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:46:55,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 1292 Invalid, 2338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 2202 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 07:46:55,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 07:46:55,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 07:46:55,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 07:46:55,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 07:46:55,764 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 125 [2024-11-16 07:46:55,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:46:55,764 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 07:46:55,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 6 states have internal predecessors, (90), 1 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-16 07:46:55,764 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 07:46:55,764 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 07:46:55,767 INFO L782 garLoopResultBuilder]: Registering result SAFE for location outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 07:46:55,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 07:46:55,770 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:46:55,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 07:47:02,718 WARN L286 SmtUtils]: Spent 6.80s on a formula simplification. DAG size of input: 1122 DAG size of output: 3 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-16 07:47:07,813 WARN L286 SmtUtils]: Spent 5.09s on a formula simplification. DAG size of input: 1122 DAG size of output: 3 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)