./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec1_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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_spec1_product31.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 ca4739abfecd00b8d2b799ccc2617c6e4b4e221f88b8a7e722070835771a8404 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 20:39:53,541 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 20:39:53,638 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 20:39:53,644 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 20:39:53,645 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 20:39:53,674 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 20:39:53,676 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 20:39:53,677 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 20:39:53,678 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 20:39:53,679 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 20:39:53,680 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 20:39:53,680 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 20:39:53,680 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 20:39:53,681 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 20:39:53,682 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 20:39:53,683 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 20:39:53,683 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 20:39:53,683 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 20:39:53,684 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 20:39:53,684 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 20:39:53,684 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 20:39:53,685 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 20:39:53,687 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 20:39:53,687 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 20:39:53,688 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 20:39:53,688 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 20:39:53,688 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 20:39:53,688 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 20:39:53,689 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 20:39:53,689 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 20:39:53,689 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 20:39:53,689 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 20:39:53,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 20:39:53,690 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 20:39:53,690 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 20:39:53,690 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 20:39:53,690 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 20:39:53,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 20:39:53,691 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 20:39:53,691 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 20:39:53,691 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 20:39:53,693 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 20:39:53,693 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca4739abfecd00b8d2b799ccc2617c6e4b4e221f88b8a7e722070835771a8404 [2024-11-11 20:39:53,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 20:39:53,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 20:39:53,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 20:39:53,992 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 20:39:53,993 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 20:39:53,994 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec1_product31.cil.c [2024-11-11 20:39:55,452 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 20:39:55,782 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 20:39:55,783 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec1_product31.cil.c [2024-11-11 20:39:55,812 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff781a631/9943c618cc6d4df88b824e9a806faf75/FLAGe925c1f13 [2024-11-11 20:39:55,827 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff781a631/9943c618cc6d4df88b824e9a806faf75 [2024-11-11 20:39:55,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 20:39:55,832 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 20:39:55,834 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 20:39:55,835 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 20:39:55,841 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 20:39:55,841 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 08:39:55" (1/1) ... [2024-11-11 20:39:55,842 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e410ef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:39:55, skipping insertion in model container [2024-11-11 20:39:55,843 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 08:39:55" (1/1) ... [2024-11-11 20:39:55,912 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 20:39:56,518 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_spec1_product31.cil.c[64142,64155] [2024-11-11 20:39:56,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 20:39:56,543 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 20:39:56,558 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2024-11-11 20:39:56,560 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [66] [2024-11-11 20:39:56,560 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [108] [2024-11-11 20:39:56,560 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [489] [2024-11-11 20:39:56,560 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [855] [2024-11-11 20:39:56,561 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [992] [2024-11-11 20:39:56,561 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1217] [2024-11-11 20:39:56,561 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1255] [2024-11-11 20:39:56,561 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1537] [2024-11-11 20:39:56,561 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1934] [2024-11-11 20:39:56,561 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3001] [2024-11-11 20:39:56,668 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_spec1_product31.cil.c[64142,64155] [2024-11-11 20:39:56,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 20:39:56,702 INFO L204 MainTranslator]: Completed translation [2024-11-11 20:39:56,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:39:56 WrapperNode [2024-11-11 20:39:56,703 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 20:39:56,704 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 20:39:56,704 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 20:39:56,704 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 20:39:56,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:39:56" (1/1) ... [2024-11-11 20:39:56,737 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:39:56" (1/1) ... [2024-11-11 20:39:56,795 INFO L138 Inliner]: procedures = 131, calls = 204, calls flagged for inlining = 61, calls inlined = 56, statements flattened = 1029 [2024-11-11 20:39:56,796 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 20:39:56,796 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 20:39:56,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 20:39:56,796 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 20:39:56,820 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:39:56" (1/1) ... [2024-11-11 20:39:56,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:39:56" (1/1) ... [2024-11-11 20:39:56,827 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:39:56" (1/1) ... [2024-11-11 20:39:56,851 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]. [2024-11-11 20:39:56,852 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:39:56" (1/1) ... [2024-11-11 20:39:56,852 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:39:56" (1/1) ... [2024-11-11 20:39:56,870 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:39:56" (1/1) ... [2024-11-11 20:39:56,881 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:39:56" (1/1) ... [2024-11-11 20:39:56,889 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:39:56" (1/1) ... [2024-11-11 20:39:56,898 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:39:56" (1/1) ... [2024-11-11 20:39:56,914 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 20:39:56,915 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 20:39:56,915 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 20:39:56,915 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 20:39:56,916 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:39:56" (1/1) ... [2024-11-11 20:39:56,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 20:39:56,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:39:56,961 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) [2024-11-11 20:39:56,964 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 [2024-11-11 20:39:57,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-11 20:39:57,010 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-11 20:39:57,011 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-11 20:39:57,011 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-11 20:39:57,011 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-11 20:39:57,011 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-11 20:39:57,011 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-11 20:39:57,012 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-11 20:39:57,012 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-11 20:39:57,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-11 20:39:57,013 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-11 20:39:57,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-11 20:39:57,013 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-11 20:39:57,013 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-11 20:39:57,014 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-11 20:39:57,014 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-11 20:39:57,014 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-11 20:39:57,014 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-11 20:39:57,015 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-11 20:39:57,015 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-11 20:39:57,015 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-11 20:39:57,015 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-11 20:39:57,016 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-11 20:39:57,017 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-11 20:39:57,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 20:39:57,017 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-11 20:39:57,017 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-11 20:39:57,017 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-11 20:39:57,017 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-11 20:39:57,017 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-11 20:39:57,017 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-11 20:39:57,017 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-11 20:39:57,017 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-11 20:39:57,017 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-11 20:39:57,017 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-11 20:39:57,017 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-11 20:39:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-11 20:39:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-11 20:39:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-11 20:39:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-11 20:39:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-11 20:39:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-11 20:39:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-11 20:39:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-11 20:39:57,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-11 20:39:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 20:39:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-11 20:39:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-11 20:39:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-11 20:39:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-11 20:39:57,020 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-11 20:39:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 20:39:57,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 20:39:57,276 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 20:39:57,279 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 20:39:58,241 INFO L? ?]: Removed 476 outVars from TransFormulas that were not future-live. [2024-11-11 20:39:58,241 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 20:39:58,266 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 20:39:58,268 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-11 20:39:58,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 08:39:58 BoogieIcfgContainer [2024-11-11 20:39:58,268 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 20:39:58,270 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 20:39:58,271 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 20:39:58,275 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 20:39:58,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 08:39:55" (1/3) ... [2024-11-11 20:39:58,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bebc4e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 08:39:58, skipping insertion in model container [2024-11-11 20:39:58,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:39:56" (2/3) ... [2024-11-11 20:39:58,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bebc4e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 08:39:58, skipping insertion in model container [2024-11-11 20:39:58,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 08:39:58" (3/3) ... [2024-11-11 20:39:58,278 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product31.cil.c [2024-11-11 20:39:58,294 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 20:39:58,294 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 20:39:58,399 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 20:39:58,407 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;@60c1ed7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 20:39:58,407 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 20:39:58,416 INFO L276 IsEmpty]: Start isEmpty. Operand has 369 states, 285 states have (on average 1.5017543859649123) internal successors, (428), 289 states have internal predecessors, (428), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-11 20:39:58,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 20:39:58,439 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:39:58,440 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:39:58,441 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:39:58,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:39:58,447 INFO L85 PathProgramCache]: Analyzing trace with hash -87878287, now seen corresponding path program 1 times [2024-11-11 20:39:58,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:39:58,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849118532] [2024-11-11 20:39:58,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:39:58,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:39:58,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:39:59,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:39:59,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:39:59,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:39:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:39:59,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:39:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:39:59,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 20:39:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:39:59,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 20:39:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:39:59,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 20:39:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:39:59,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 20:39:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:39:59,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 20:39:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:39:59,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:39:59,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:39:59,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 20:39:59,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:39:59,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 20:39:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:39:59,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 20:39:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:39:59,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-11 20:39:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:39:59,298 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-11 20:39:59,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:39:59,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849118532] [2024-11-11 20:39:59,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849118532] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:39:59,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621162981] [2024-11-11 20:39:59,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:39:59,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:39:59,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:39:59,303 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) [2024-11-11 20:39:59,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 20:39:59,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:39:59,685 INFO L256 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-11 20:39:59,695 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:39:59,723 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-11 20:39:59,723 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:39:59,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621162981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:39:59,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:39:59,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-11 20:39:59,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234138374] [2024-11-11 20:39:59,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:39:59,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-11 20:39:59,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:39:59,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-11 20:39:59,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:39:59,760 INFO L87 Difference]: Start difference. First operand has 369 states, 285 states have (on average 1.5017543859649123) internal successors, (428), 289 states have internal predecessors, (428), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:39:59,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:39:59,843 INFO L93 Difference]: Finished difference Result 584 states and 846 transitions. [2024-11-11 20:39:59,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-11 20:39:59,849 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2024-11-11 20:39:59,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:39:59,871 INFO L225 Difference]: With dead ends: 584 [2024-11-11 20:39:59,872 INFO L226 Difference]: Without dead ends: 362 [2024-11-11 20:39:59,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:39:59,887 INFO L435 NwaCegarLoop]: 542 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, 542 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 [2024-11-11 20:39:59,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:39:59,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-11 20:39:59,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2024-11-11 20:39:59,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 279 states have (on average 1.4946236559139785) internal successors, (417), 282 states have internal predecessors, (417), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-11 20:39:59,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 534 transitions. [2024-11-11 20:39:59,974 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 534 transitions. Word has length 101 [2024-11-11 20:39:59,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:39:59,977 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 534 transitions. [2024-11-11 20:39:59,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:39:59,977 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 534 transitions. [2024-11-11 20:39:59,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-11 20:39:59,985 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:39:59,985 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:40:00,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-11 20:40:00,186 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 [2024-11-11 20:40:00,187 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:40:00,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:40:00,188 INFO L85 PathProgramCache]: Analyzing trace with hash -947747183, now seen corresponding path program 1 times [2024-11-11 20:40:00,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:40:00,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267198371] [2024-11-11 20:40:00,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:40:00,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:40:00,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:00,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:40:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:00,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:40:00,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:00,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:40:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:00,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 20:40:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:00,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 20:40:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:00,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 20:40:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:00,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 20:40:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:00,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 20:40:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:00,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-11 20:40:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:00,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-11 20:40:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:00,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 20:40:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:00,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 20:40:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:00,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-11 20:40:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:00,546 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-11 20:40:00,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:40:00,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267198371] [2024-11-11 20:40:00,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267198371] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:40:00,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391950264] [2024-11-11 20:40:00,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:40:00,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:40:00,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:40:00,552 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) [2024-11-11 20:40:00,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-11 20:40:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:00,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 1017 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 20:40:00,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:40:00,897 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-11 20:40:00,897 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:40:00,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391950264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:40:00,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:40:00,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-11 20:40:00,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684069593] [2024-11-11 20:40:00,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:40:00,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 20:40:00,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:40:00,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 20:40:00,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:40:00,902 INFO L87 Difference]: Start difference. First operand 362 states and 534 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:40:00,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:40:00,959 INFO L93 Difference]: Finished difference Result 574 states and 827 transitions. [2024-11-11 20:40:00,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 20:40:00,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 102 [2024-11-11 20:40:00,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:40:00,966 INFO L225 Difference]: With dead ends: 574 [2024-11-11 20:40:00,966 INFO L226 Difference]: Without dead ends: 365 [2024-11-11 20:40:00,967 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:40:00,969 INFO L435 NwaCegarLoop]: 532 mSDtfsCounter, 1 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:40:00,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1062 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:40:00,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-11 20:40:01,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 364. [2024-11-11 20:40:01,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 281 states have (on average 1.491103202846975) internal successors, (419), 284 states have internal predecessors, (419), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-11 20:40:01,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 536 transitions. [2024-11-11 20:40:01,012 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 536 transitions. Word has length 102 [2024-11-11 20:40:01,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:40:01,012 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 536 transitions. [2024-11-11 20:40:01,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:40:01,013 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 536 transitions. [2024-11-11 20:40:01,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-11 20:40:01,015 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:40:01,015 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:40:01,033 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-11 20:40:01,216 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 [2024-11-11 20:40:01,217 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:40:01,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:40:01,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1216397766, now seen corresponding path program 1 times [2024-11-11 20:40:01,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:40:01,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499529020] [2024-11-11 20:40:01,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:40:01,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:40:01,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:01,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:40:01,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:01,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:40:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:01,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:40:01,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:01,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 20:40:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:01,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 20:40:01,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:01,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 20:40:01,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:01,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 20:40:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:01,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 20:40:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:01,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 20:40:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:01,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 20:40:01,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:01,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-11 20:40:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:01,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-11 20:40:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:01,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-11 20:40:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:01,528 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-11 20:40:01,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:40:01,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499529020] [2024-11-11 20:40:01,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499529020] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:40:01,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548749492] [2024-11-11 20:40:01,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:40:01,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:40:01,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:40:01,531 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) [2024-11-11 20:40:01,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-11 20:40:01,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:01,819 INFO L256 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:40:01,829 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:40:01,862 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-11 20:40:01,863 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:40:01,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548749492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:40:01,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:40:01,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-11 20:40:01,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409488646] [2024-11-11 20:40:01,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:40:01,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 20:40:01,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:40:01,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 20:40:01,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:40:01,866 INFO L87 Difference]: Start difference. First operand 364 states and 536 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:40:01,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:40:01,916 INFO L93 Difference]: Finished difference Result 758 states and 1131 transitions. [2024-11-11 20:40:01,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 20:40:01,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 108 [2024-11-11 20:40:01,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:40:01,923 INFO L225 Difference]: With dead ends: 758 [2024-11-11 20:40:01,924 INFO L226 Difference]: Without dead ends: 421 [2024-11-11 20:40:01,925 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:40:01,926 INFO L435 NwaCegarLoop]: 549 mSDtfsCounter, 107 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 1037 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 [2024-11-11 20:40:01,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 1037 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:40:01,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-11-11 20:40:01,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 413. [2024-11-11 20:40:01,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 319 states have (on average 1.5078369905956113) internal successors, (481), 322 states have internal predecessors, (481), 70 states have call successors, (70), 23 states have call predecessors, (70), 23 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-11 20:40:01,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 620 transitions. [2024-11-11 20:40:01,963 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 620 transitions. Word has length 108 [2024-11-11 20:40:01,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:40:01,964 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 620 transitions. [2024-11-11 20:40:01,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:40:01,966 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 620 transitions. [2024-11-11 20:40:01,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-11 20:40:01,969 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:40:01,969 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:40:01,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-11 20:40:02,169 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 [2024-11-11 20:40:02,170 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:40:02,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:40:02,171 INFO L85 PathProgramCache]: Analyzing trace with hash 659404408, now seen corresponding path program 1 times [2024-11-11 20:40:02,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:40:02,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411097158] [2024-11-11 20:40:02,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:40:02,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:40:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:02,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:40:02,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:02,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:40:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:02,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:40:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:02,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 20:40:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:02,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 20:40:02,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:02,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 20:40:02,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:02,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-11 20:40:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:02,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 20:40:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:02,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 20:40:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:02,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:40:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:02,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-11 20:40:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:02,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-11 20:40:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:02,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-11 20:40:02,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:02,406 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-11 20:40:02,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:40:02,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411097158] [2024-11-11 20:40:02,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411097158] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:40:02,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009588833] [2024-11-11 20:40:02,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:40:02,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:40:02,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:40:02,409 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) [2024-11-11 20:40:02,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-11 20:40:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:02,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 1034 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-11 20:40:02,739 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:40:02,819 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-11 20:40:02,820 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:40:02,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009588833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:40:02,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:40:02,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-11 20:40:02,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312731286] [2024-11-11 20:40:02,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:40:02,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 20:40:02,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:40:02,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 20:40:02,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:40:02,823 INFO L87 Difference]: Start difference. First operand 413 states and 620 transitions. Second operand has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-11 20:40:02,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:40:02,899 INFO L93 Difference]: Finished difference Result 817 states and 1230 transitions. [2024-11-11 20:40:02,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:40:02,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 109 [2024-11-11 20:40:02,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:40:02,903 INFO L225 Difference]: With dead ends: 817 [2024-11-11 20:40:02,903 INFO L226 Difference]: Without dead ends: 415 [2024-11-11 20:40:02,905 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:40:02,906 INFO L435 NwaCegarLoop]: 526 mSDtfsCounter, 2 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2093 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 [2024-11-11 20:40:02,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2093 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:40:02,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-11 20:40:02,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2024-11-11 20:40:02,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 320 states have (on average 1.50625) internal successors, (482), 324 states have internal predecessors, (482), 70 states have call successors, (70), 23 states have call predecessors, (70), 24 states have return successors, (71), 69 states have call predecessors, (71), 69 states have call successors, (71) [2024-11-11 20:40:02,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 623 transitions. [2024-11-11 20:40:02,928 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 623 transitions. Word has length 109 [2024-11-11 20:40:02,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:40:02,929 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 623 transitions. [2024-11-11 20:40:02,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-11 20:40:02,930 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 623 transitions. [2024-11-11 20:40:02,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-11 20:40:02,934 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:40:02,935 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:40:02,953 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-11 20:40:03,139 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 [2024-11-11 20:40:03,140 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:40:03,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:40:03,140 INFO L85 PathProgramCache]: Analyzing trace with hash -2124888186, now seen corresponding path program 1 times [2024-11-11 20:40:03,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:40:03,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905709756] [2024-11-11 20:40:03,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:40:03,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:40:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:03,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:40:03,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:03,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:40:03,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:03,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:40:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:03,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:40:03,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:03,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-11 20:40:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:03,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:40:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:03,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 20:40:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:03,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:40:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:03,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-11 20:40:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:03,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 20:40:03,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:03,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-11 20:40:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:03,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 20:40:03,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:03,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-11 20:40:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:03,381 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-11 20:40:03,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:40:03,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905709756] [2024-11-11 20:40:03,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905709756] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:40:03,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297417530] [2024-11-11 20:40:03,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:40:03,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:40:03,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:40:03,384 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) [2024-11-11 20:40:03,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-11 20:40:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:03,668 INFO L256 TraceCheckSpWp]: Trace formula consists of 1035 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-11 20:40:03,672 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:40:03,727 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-11 20:40:03,730 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:40:03,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297417530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:40:03,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:40:03,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-11 20:40:03,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983105055] [2024-11-11 20:40:03,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:40:03,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 20:40:03,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:40:03,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 20:40:03,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-11 20:40:03,732 INFO L87 Difference]: Start difference. First operand 415 states and 623 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-11 20:40:03,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:40:03,825 INFO L93 Difference]: Finished difference Result 819 states and 1235 transitions. [2024-11-11 20:40:03,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:40:03,826 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 110 [2024-11-11 20:40:03,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:40:03,830 INFO L225 Difference]: With dead ends: 819 [2024-11-11 20:40:03,830 INFO L226 Difference]: Without dead ends: 417 [2024-11-11 20:40:03,831 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-11 20:40:03,833 INFO L435 NwaCegarLoop]: 524 mSDtfsCounter, 2 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2079 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:40:03,833 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2079 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:40:03,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-11 20:40:03,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2024-11-11 20:40:03,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 321 states have (on average 1.5046728971962617) internal successors, (483), 326 states have internal predecessors, (483), 70 states have call successors, (70), 23 states have call predecessors, (70), 25 states have return successors, (76), 69 states have call predecessors, (76), 69 states have call successors, (76) [2024-11-11 20:40:03,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 629 transitions. [2024-11-11 20:40:03,852 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 629 transitions. Word has length 110 [2024-11-11 20:40:03,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:40:03,852 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 629 transitions. [2024-11-11 20:40:03,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-11 20:40:03,852 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 629 transitions. [2024-11-11 20:40:03,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-11 20:40:03,854 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:40:03,854 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:40:03,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-11 20:40:04,056 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 [2024-11-11 20:40:04,057 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:40:04,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:40:04,058 INFO L85 PathProgramCache]: Analyzing trace with hash 302573545, now seen corresponding path program 1 times [2024-11-11 20:40:04,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:40:04,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153076604] [2024-11-11 20:40:04,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:40:04,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:40:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:04,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:40:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:04,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:40:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:04,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:40:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:04,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:40:04,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:04,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:40:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:04,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-11 20:40:04,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:04,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-11 20:40:04,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:04,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-11 20:40:04,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:04,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-11 20:40:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:04,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-11 20:40:04,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:04,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 20:40:04,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:04,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 20:40:04,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:04,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 20:40:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:04,254 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-11 20:40:04,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:40:04,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153076604] [2024-11-11 20:40:04,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153076604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:40:04,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:40:04,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 20:40:04,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376380567] [2024-11-11 20:40:04,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:40:04,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 20:40:04,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:40:04,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 20:40:04,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:40:04,257 INFO L87 Difference]: Start difference. First operand 417 states and 629 transitions. Second operand has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-11 20:40:06,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:40:06,783 INFO L93 Difference]: Finished difference Result 996 states and 1501 transitions. [2024-11-11 20:40:06,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 20:40:06,783 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 111 [2024-11-11 20:40:06,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:40:06,788 INFO L225 Difference]: With dead ends: 996 [2024-11-11 20:40:06,788 INFO L226 Difference]: Without dead ends: 602 [2024-11-11 20:40:06,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-11 20:40:06,790 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 1184 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 2905 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 3288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 2905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-11 20:40:06,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1185 Valid, 1108 Invalid, 3288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 2905 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-11 20:40:06,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2024-11-11 20:40:06,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 417. [2024-11-11 20:40:06,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 321 states have (on average 1.5046728971962617) internal successors, (483), 326 states have internal predecessors, (483), 70 states have call successors, (70), 23 states have call predecessors, (70), 25 states have return successors, (75), 69 states have call predecessors, (75), 69 states have call successors, (75) [2024-11-11 20:40:06,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 628 transitions. [2024-11-11 20:40:06,858 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 628 transitions. Word has length 111 [2024-11-11 20:40:06,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:40:06,860 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 628 transitions. [2024-11-11 20:40:06,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-11 20:40:06,860 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 628 transitions. [2024-11-11 20:40:06,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-11 20:40:06,863 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:40:06,863 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:40:06,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 20:40:06,863 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:40:06,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:40:06,864 INFO L85 PathProgramCache]: Analyzing trace with hash -573693163, now seen corresponding path program 2 times [2024-11-11 20:40:06,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:40:06,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688612136] [2024-11-11 20:40:06,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:40:06,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:40:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:06,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:40:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:06,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:40:06,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:06,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:40:06,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:06,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:40:06,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:06,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:40:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:07,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 20:40:07,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:07,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-11 20:40:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:07,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-11 20:40:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:07,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:40:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:07,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-11 20:40:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:07,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 20:40:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:07,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-11 20:40:07,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:07,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-11 20:40:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:07,049 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-11 20:40:07,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:40:07,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688612136] [2024-11-11 20:40:07,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688612136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:40:07,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:40:07,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 20:40:07,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9850313] [2024-11-11 20:40:07,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:40:07,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 20:40:07,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:40:07,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 20:40:07,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:40:07,052 INFO L87 Difference]: Start difference. First operand 417 states and 628 transitions. Second operand has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-11 20:40:09,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:40:09,450 INFO L93 Difference]: Finished difference Result 998 states and 1504 transitions. [2024-11-11 20:40:09,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 20:40:09,451 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 112 [2024-11-11 20:40:09,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:40:09,457 INFO L225 Difference]: With dead ends: 998 [2024-11-11 20:40:09,458 INFO L226 Difference]: Without dead ends: 604 [2024-11-11 20:40:09,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-11 20:40:09,462 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 1180 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 2917 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 3300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 2917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:40:09,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1181 Valid, 1108 Invalid, 3300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 2917 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-11 20:40:09,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-11 20:40:09,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 419. [2024-11-11 20:40:09,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 322 states have (on average 1.5031055900621118) internal successors, (484), 328 states have internal predecessors, (484), 70 states have call successors, (70), 23 states have call predecessors, (70), 26 states have return successors, (77), 69 states have call predecessors, (77), 69 states have call successors, (77) [2024-11-11 20:40:09,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 631 transitions. [2024-11-11 20:40:09,510 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 631 transitions. Word has length 112 [2024-11-11 20:40:09,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:40:09,511 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 631 transitions. [2024-11-11 20:40:09,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-11 20:40:09,511 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 631 transitions. [2024-11-11 20:40:09,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 20:40:09,513 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:40:09,513 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:40:09,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 20:40:09,513 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:40:09,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:40:09,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1900493330, now seen corresponding path program 1 times [2024-11-11 20:40:09,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:40:09,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578304542] [2024-11-11 20:40:09,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:40:09,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:40:09,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:09,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:40:09,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:09,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:40:09,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:09,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:40:09,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:09,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:40:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:09,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:40:09,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:09,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:40:09,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:09,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 20:40:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:09,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 20:40:09,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:09,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:40:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:09,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-11 20:40:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:09,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 20:40:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:09,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 20:40:09,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:09,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-11 20:40:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:09,758 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-11 20:40:09,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:40:09,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578304542] [2024-11-11 20:40:09,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578304542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:40:09,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:40:09,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-11 20:40:09,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186264730] [2024-11-11 20:40:09,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:40:09,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-11 20:40:09,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:40:09,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-11 20:40:09,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:40:09,761 INFO L87 Difference]: Start difference. First operand 419 states and 631 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-11 20:40:12,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:40:12,877 INFO L93 Difference]: Finished difference Result 996 states and 1499 transitions. [2024-11-11 20:40:12,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 20:40:12,879 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 113 [2024-11-11 20:40:12,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:40:12,884 INFO L225 Difference]: With dead ends: 996 [2024-11-11 20:40:12,884 INFO L226 Difference]: Without dead ends: 604 [2024-11-11 20:40:12,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-11 20:40:12,886 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 1184 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4843 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 5233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 4843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-11 20:40:12,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1185 Valid, 1535 Invalid, 5233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 4843 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-11 20:40:12,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-11 20:40:12,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 419. [2024-11-11 20:40:12,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 322 states have (on average 1.5031055900621118) internal successors, (484), 328 states have internal predecessors, (484), 70 states have call successors, (70), 23 states have call predecessors, (70), 26 states have return successors, (76), 69 states have call predecessors, (76), 69 states have call successors, (76) [2024-11-11 20:40:12,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 630 transitions. [2024-11-11 20:40:12,927 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 630 transitions. Word has length 113 [2024-11-11 20:40:12,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:40:12,927 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 630 transitions. [2024-11-11 20:40:12,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-11 20:40:12,927 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 630 transitions. [2024-11-11 20:40:12,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-11 20:40:12,929 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:40:12,929 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:40:12,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 20:40:12,930 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:40:12,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:40:12,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1140315037, now seen corresponding path program 2 times [2024-11-11 20:40:12,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:40:12,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087674339] [2024-11-11 20:40:12,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:40:12,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:40:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:13,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:40:13,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:13,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:40:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:13,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:40:13,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:13,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:40:13,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:13,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:40:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:13,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:40:13,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:13,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 20:40:13,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:13,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 20:40:13,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:13,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 20:40:13,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:13,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-11 20:40:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:13,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-11 20:40:13,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:13,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-11 20:40:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:13,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 20:40:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:13,204 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-11 20:40:13,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:40:13,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087674339] [2024-11-11 20:40:13,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087674339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:40:13,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:40:13,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-11 20:40:13,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623389192] [2024-11-11 20:40:13,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:40:13,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-11 20:40:13,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:40:13,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-11 20:40:13,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:40:13,206 INFO L87 Difference]: Start difference. First operand 419 states and 630 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-11 20:40:15,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:40:15,892 INFO L93 Difference]: Finished difference Result 998 states and 1505 transitions. [2024-11-11 20:40:15,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 20:40:15,893 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 114 [2024-11-11 20:40:15,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:40:15,897 INFO L225 Difference]: With dead ends: 998 [2024-11-11 20:40:15,897 INFO L226 Difference]: Without dead ends: 606 [2024-11-11 20:40:15,898 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-11 20:40:15,899 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 1180 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4879 mSolverCounterSat, 386 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 5265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 386 IncrementalHoareTripleChecker+Valid, 4879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-11 20:40:15,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1181 Valid, 1536 Invalid, 5265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [386 Valid, 4879 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-11 20:40:15,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-11-11 20:40:15,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 421. [2024-11-11 20:40:15,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 323 states have (on average 1.501547987616099) internal successors, (485), 330 states have internal predecessors, (485), 70 states have call successors, (70), 23 states have call predecessors, (70), 27 states have return successors, (81), 69 states have call predecessors, (81), 69 states have call successors, (81) [2024-11-11 20:40:15,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 636 transitions. [2024-11-11 20:40:15,934 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 636 transitions. Word has length 114 [2024-11-11 20:40:15,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:40:15,935 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 636 transitions. [2024-11-11 20:40:15,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-11 20:40:15,935 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 636 transitions. [2024-11-11 20:40:15,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-11 20:40:15,936 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:40:15,937 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:40:15,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 20:40:15,937 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:40:15,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:40:15,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1502282733, now seen corresponding path program 1 times [2024-11-11 20:40:15,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:40:15,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36298137] [2024-11-11 20:40:15,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:40:15,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:40:15,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:16,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:40:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:16,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:40:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:16,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:40:16,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:16,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:40:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:16,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:40:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:16,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:40:16,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:16,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:40:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:16,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-11 20:40:16,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:16,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 20:40:16,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:16,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-11 20:40:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:16,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-11 20:40:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:16,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-11 20:40:16,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:16,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-11 20:40:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:16,088 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-11 20:40:16,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:40:16,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36298137] [2024-11-11 20:40:16,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36298137] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:40:16,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688454094] [2024-11-11 20:40:16,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:40:16,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:40:16,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:40:16,091 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) [2024-11-11 20:40:16,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-11 20:40:16,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:16,386 INFO L256 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:40:16,390 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:40:16,412 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-11 20:40:16,413 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 20:40:16,526 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-11 20:40:16,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688454094] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 20:40:16,526 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 20:40:16,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2024-11-11 20:40:16,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567363095] [2024-11-11 20:40:16,527 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 20:40:16,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-11 20:40:16,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:40:16,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-11 20:40:16,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-11 20:40:16,531 INFO L87 Difference]: Start difference. First operand 421 states and 636 transitions. Second operand has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-11 20:40:18,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:40:18,160 INFO L93 Difference]: Finished difference Result 1167 states and 1833 transitions. [2024-11-11 20:40:18,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 20:40:18,161 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 115 [2024-11-11 20:40:18,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:40:18,171 INFO L225 Difference]: With dead ends: 1167 [2024-11-11 20:40:18,172 INFO L226 Difference]: Without dead ends: 958 [2024-11-11 20:40:18,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-11-11 20:40:18,176 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 1650 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 533 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1695 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 2416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 533 IncrementalHoareTripleChecker+Valid, 1883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 20:40:18,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1695 Valid, 1419 Invalid, 2416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [533 Valid, 1883 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 20:40:18,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2024-11-11 20:40:18,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 749. [2024-11-11 20:40:18,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 587 states have (on average 1.5724020442930153) internal successors, (923), 594 states have internal predecessors, (923), 134 states have call successors, (134), 23 states have call predecessors, (134), 27 states have return successors, (155), 133 states have call predecessors, (155), 133 states have call successors, (155) [2024-11-11 20:40:18,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1212 transitions. [2024-11-11 20:40:18,260 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1212 transitions. Word has length 115 [2024-11-11 20:40:18,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:40:18,260 INFO L471 AbstractCegarLoop]: Abstraction has 749 states and 1212 transitions. [2024-11-11 20:40:18,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-11 20:40:18,261 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1212 transitions. [2024-11-11 20:40:18,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-11 20:40:18,264 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:40:18,264 INFO L218 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] [2024-11-11 20:40:18,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-11 20:40:18,465 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 [2024-11-11 20:40:18,465 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:40:18,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:40:18,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1211504496, now seen corresponding path program 1 times [2024-11-11 20:40:18,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:40:18,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764806500] [2024-11-11 20:40:18,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:40:18,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:40:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:18,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:40:18,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:18,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:40:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:18,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:40:18,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:18,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:40:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:18,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:40:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:18,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:40:18,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:18,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 20:40:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:18,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:40:18,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:18,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-11 20:40:18,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:18,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-11 20:40:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:18,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 20:40:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:18,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 20:40:18,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:18,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-11 20:40:18,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:18,577 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-11 20:40:18,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:40:18,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764806500] [2024-11-11 20:40:18,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764806500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:40:18,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:40:18,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:40:18,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447412666] [2024-11-11 20:40:18,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:40:18,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:40:18,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:40:18,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:40:18,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:40:18,579 INFO L87 Difference]: Start difference. First operand 749 states and 1212 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:40:20,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:40:20,059 INFO L93 Difference]: Finished difference Result 1948 states and 3204 transitions. [2024-11-11 20:40:20,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:40:20,059 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2024-11-11 20:40:20,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:40:20,067 INFO L225 Difference]: With dead ends: 1948 [2024-11-11 20:40:20,067 INFO L226 Difference]: Without dead ends: 1267 [2024-11-11 20:40:20,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:40:20,071 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 1284 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 1672 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1299 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 1672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 20:40:20,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1299 Valid, 851 Invalid, 2107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 1672 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 20:40:20,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2024-11-11 20:40:20,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 1074. [2024-11-11 20:40:20,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 848 states have (on average 1.5896226415094339) internal successors, (1348), 855 states have internal predecessors, (1348), 198 states have call successors, (198), 23 states have call predecessors, (198), 27 states have return successors, (229), 197 states have call predecessors, (229), 197 states have call successors, (229) [2024-11-11 20:40:20,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1775 transitions. [2024-11-11 20:40:20,130 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1775 transitions. Word has length 121 [2024-11-11 20:40:20,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:40:20,130 INFO L471 AbstractCegarLoop]: Abstraction has 1074 states and 1775 transitions. [2024-11-11 20:40:20,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:40:20,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1775 transitions. [2024-11-11 20:40:20,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-11 20:40:20,136 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:40:20,136 INFO L218 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] [2024-11-11 20:40:20,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 20:40:20,136 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:40:20,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:40:20,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1600568447, now seen corresponding path program 1 times [2024-11-11 20:40:20,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:40:20,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612180772] [2024-11-11 20:40:20,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:40:20,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:40:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:20,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:40:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:20,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:40:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:20,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:40:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:20,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:40:20,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:20,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:40:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:20,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:40:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:20,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 20:40:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:20,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:40:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:20,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-11 20:40:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:20,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-11 20:40:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:20,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 20:40:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:20,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-11 20:40:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:20,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-11 20:40:20,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:20,241 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-11 20:40:20,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:40:20,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612180772] [2024-11-11 20:40:20,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612180772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:40:20,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:40:20,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:40:20,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802653730] [2024-11-11 20:40:20,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:40:20,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:40:20,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:40:20,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:40:20,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:40:20,244 INFO L87 Difference]: Start difference. First operand 1074 states and 1775 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:40:21,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:40:21,838 INFO L93 Difference]: Finished difference Result 2728 states and 4553 transitions. [2024-11-11 20:40:21,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:40:21,839 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2024-11-11 20:40:21,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:40:21,849 INFO L225 Difference]: With dead ends: 2728 [2024-11-11 20:40:21,849 INFO L226 Difference]: Without dead ends: 1775 [2024-11-11 20:40:21,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:40:21,853 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 1282 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 1638 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1297 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 2081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 1638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 20:40:21,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1297 Valid, 812 Invalid, 2081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 1638 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 20:40:21,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2024-11-11 20:40:21,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1582. [2024-11-11 20:40:21,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1261 states have (on average 1.6011102299762094) internal successors, (2019), 1268 states have internal predecessors, (2019), 293 states have call successors, (293), 23 states have call predecessors, (293), 27 states have return successors, (324), 292 states have call predecessors, (324), 292 states have call successors, (324) [2024-11-11 20:40:21,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 2636 transitions. [2024-11-11 20:40:21,929 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 2636 transitions. Word has length 122 [2024-11-11 20:40:21,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:40:21,930 INFO L471 AbstractCegarLoop]: Abstraction has 1582 states and 2636 transitions. [2024-11-11 20:40:21,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:40:21,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 2636 transitions. [2024-11-11 20:40:21,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-11 20:40:21,937 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:40:21,937 INFO L218 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] [2024-11-11 20:40:21,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 20:40:21,938 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:40:21,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:40:21,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1385173842, now seen corresponding path program 1 times [2024-11-11 20:40:21,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:40:21,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586827453] [2024-11-11 20:40:21,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:40:21,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:40:21,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:21,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:40:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:22,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:40:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:22,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:40:22,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:22,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:40:22,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:22,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:40:22,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:22,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:40:22,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:22,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 20:40:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:22,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 20:40:22,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:22,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-11 20:40:22,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:22,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-11 20:40:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:22,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-11 20:40:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:22,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 20:40:22,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:22,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-11 20:40:22,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:22,052 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-11 20:40:22,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:40:22,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586827453] [2024-11-11 20:40:22,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586827453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:40:22,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:40:22,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:40:22,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466365864] [2024-11-11 20:40:22,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:40:22,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:40:22,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:40:22,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:40:22,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:40:22,054 INFO L87 Difference]: Start difference. First operand 1582 states and 2636 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:40:23,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:40:23,608 INFO L93 Difference]: Finished difference Result 3880 states and 6562 transitions. [2024-11-11 20:40:23,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:40:23,608 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2024-11-11 20:40:23,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:40:23,624 INFO L225 Difference]: With dead ends: 3880 [2024-11-11 20:40:23,624 INFO L226 Difference]: Without dead ends: 2544 [2024-11-11 20:40:23,629 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:40:23,631 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 1280 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1637 mSolverCounterSat, 436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 2073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 436 IncrementalHoareTripleChecker+Valid, 1637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 20:40:23,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 811 Invalid, 2073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [436 Valid, 1637 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 20:40:23,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2024-11-11 20:40:23,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 2351. [2024-11-11 20:40:23,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2351 states, 1907 states have (on average 1.609858416360776) internal successors, (3070), 1914 states have internal predecessors, (3070), 416 states have call successors, (416), 23 states have call predecessors, (416), 27 states have return successors, (463), 415 states have call predecessors, (463), 415 states have call successors, (463) [2024-11-11 20:40:23,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2351 states to 2351 states and 3949 transitions. [2024-11-11 20:40:23,738 INFO L78 Accepts]: Start accepts. Automaton has 2351 states and 3949 transitions. Word has length 123 [2024-11-11 20:40:23,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:40:23,738 INFO L471 AbstractCegarLoop]: Abstraction has 2351 states and 3949 transitions. [2024-11-11 20:40:23,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:40:23,738 INFO L276 IsEmpty]: Start isEmpty. Operand 2351 states and 3949 transitions. [2024-11-11 20:40:23,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-11 20:40:23,749 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:40:23,750 INFO L218 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] [2024-11-11 20:40:23,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 20:40:23,751 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:40:23,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:40:23,751 INFO L85 PathProgramCache]: Analyzing trace with hash 871381248, now seen corresponding path program 1 times [2024-11-11 20:40:23,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:40:23,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964738490] [2024-11-11 20:40:23,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:40:23,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:40:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:23,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:40:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:23,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:40:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:23,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:40:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:23,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:40:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:23,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:40:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:23,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:40:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:23,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-11 20:40:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:23,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 20:40:23,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:23,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-11 20:40:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:23,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-11 20:40:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:23,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 20:40:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:23,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 20:40:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:23,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-11 20:40:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:23,872 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-11 20:40:23,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:40:23,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964738490] [2024-11-11 20:40:23,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964738490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:40:23,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:40:23,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:40:23,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493722507] [2024-11-11 20:40:23,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:40:23,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:40:23,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:40:23,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:40:23,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:40:23,874 INFO L87 Difference]: Start difference. First operand 2351 states and 3949 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:40:25,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:40:25,230 INFO L93 Difference]: Finished difference Result 5674 states and 9696 transitions. [2024-11-11 20:40:25,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:40:25,231 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2024-11-11 20:40:25,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:40:25,254 INFO L225 Difference]: With dead ends: 5674 [2024-11-11 20:40:25,254 INFO L226 Difference]: Without dead ends: 3773 [2024-11-11 20:40:25,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:40:25,263 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 1278 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 2075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 20:40:25,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1293 Valid, 811 Invalid, 2075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 1640 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 20:40:25,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3773 states. [2024-11-11 20:40:25,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3773 to 3580. [2024-11-11 20:40:25,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3580 states, 2957 states have (on average 1.6154886709502874) internal successors, (4777), 2964 states have internal predecessors, (4777), 595 states have call successors, (595), 23 states have call predecessors, (595), 27 states have return successors, (668), 594 states have call predecessors, (668), 594 states have call successors, (668) [2024-11-11 20:40:25,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3580 states to 3580 states and 6040 transitions. [2024-11-11 20:40:25,442 INFO L78 Accepts]: Start accepts. Automaton has 3580 states and 6040 transitions. Word has length 124 [2024-11-11 20:40:25,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:40:25,442 INFO L471 AbstractCegarLoop]: Abstraction has 3580 states and 6040 transitions. [2024-11-11 20:40:25,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:40:25,443 INFO L276 IsEmpty]: Start isEmpty. Operand 3580 states and 6040 transitions. [2024-11-11 20:40:25,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-11 20:40:25,459 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:40:25,459 INFO L218 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] [2024-11-11 20:40:25,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 20:40:25,460 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:40:25,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:40:25,460 INFO L85 PathProgramCache]: Analyzing trace with hash -230197458, now seen corresponding path program 1 times [2024-11-11 20:40:25,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:40:25,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025646325] [2024-11-11 20:40:25,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:40:25,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:40:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:25,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:40:25,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:25,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:40:25,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:25,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:40:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:25,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:40:25,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:25,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:40:25,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:25,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:40:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:25,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-11 20:40:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:25,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 20:40:25,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:25,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 20:40:25,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:25,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-11 20:40:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:25,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-11 20:40:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:25,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-11 20:40:25,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:25,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-11 20:40:25,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:25,575 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-11 20:40:25,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:40:25,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025646325] [2024-11-11 20:40:25,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025646325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:40:25,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:40:25,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:40:25,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550195308] [2024-11-11 20:40:25,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:40:25,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:40:25,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:40:25,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:40:25,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:40:25,577 INFO L87 Difference]: Start difference. First operand 3580 states and 6040 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:40:27,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:40:27,208 INFO L93 Difference]: Finished difference Result 8622 states and 14843 transitions. [2024-11-11 20:40:27,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:40:27,208 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 125 [2024-11-11 20:40:27,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:40:27,241 INFO L225 Difference]: With dead ends: 8622 [2024-11-11 20:40:27,241 INFO L226 Difference]: Without dead ends: 5804 [2024-11-11 20:40:27,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:40:27,254 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 1276 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1291 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 2106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 20:40:27,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1291 Valid, 835 Invalid, 2106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [440 Valid, 1666 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 20:40:27,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5804 states. [2024-11-11 20:40:27,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5804 to 5611. [2024-11-11 20:40:27,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5611 states, 4612 states have (on average 1.6107979184735473) internal successors, (7429), 4619 states have internal predecessors, (7429), 971 states have call successors, (971), 23 states have call predecessors, (971), 27 states have return successors, (1088), 970 states have call predecessors, (1088), 970 states have call successors, (1088) [2024-11-11 20:40:27,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5611 states to 5611 states and 9488 transitions. [2024-11-11 20:40:27,513 INFO L78 Accepts]: Start accepts. Automaton has 5611 states and 9488 transitions. Word has length 125 [2024-11-11 20:40:27,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:40:27,514 INFO L471 AbstractCegarLoop]: Abstraction has 5611 states and 9488 transitions. [2024-11-11 20:40:27,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:40:27,514 INFO L276 IsEmpty]: Start isEmpty. Operand 5611 states and 9488 transitions. [2024-11-11 20:40:27,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-11 20:40:27,530 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:40:27,530 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:40:27,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 20:40:27,531 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:40:27,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:40:27,531 INFO L85 PathProgramCache]: Analyzing trace with hash -649519836, now seen corresponding path program 1 times [2024-11-11 20:40:27,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:40:27,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6706829] [2024-11-11 20:40:27,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:40:27,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:40:27,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:27,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:40:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:27,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:40:27,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:27,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:40:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:27,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:40:27,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:27,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:40:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:27,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:40:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:27,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:40:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:27,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:40:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:27,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 20:40:27,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:27,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-11 20:40:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:27,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-11 20:40:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:27,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-11 20:40:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:27,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-11 20:40:27,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:27,658 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-11 20:40:27,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:40:27,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6706829] [2024-11-11 20:40:27,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6706829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:40:27,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:40:27,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:40:27,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954305200] [2024-11-11 20:40:27,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:40:27,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:40:27,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:40:27,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:40:27,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:40:27,660 INFO L87 Difference]: Start difference. First operand 5611 states and 9488 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:40:29,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:40:29,145 INFO L93 Difference]: Finished difference Result 13959 states and 24064 transitions. [2024-11-11 20:40:29,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:40:29,145 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 126 [2024-11-11 20:40:29,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:40:29,254 INFO L225 Difference]: With dead ends: 13959 [2024-11-11 20:40:29,254 INFO L226 Difference]: Without dead ends: 9487 [2024-11-11 20:40:29,269 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:40:29,270 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 1274 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 1641 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1289 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 2085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 1641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 20:40:29,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1289 Valid, 818 Invalid, 2085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 1641 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 20:40:29,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9487 states. [2024-11-11 20:40:29,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9487 to 9294. [2024-11-11 20:40:29,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9294 states, 7689 states have (on average 1.609442060085837) internal successors, (12375), 7696 states have internal predecessors, (12375), 1577 states have call successors, (1577), 23 states have call predecessors, (1577), 27 states have return successors, (1772), 1576 states have call predecessors, (1772), 1576 states have call successors, (1772) [2024-11-11 20:40:29,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9294 states to 9294 states and 15724 transitions. [2024-11-11 20:40:29,644 INFO L78 Accepts]: Start accepts. Automaton has 9294 states and 15724 transitions. Word has length 126 [2024-11-11 20:40:29,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:40:29,644 INFO L471 AbstractCegarLoop]: Abstraction has 9294 states and 15724 transitions. [2024-11-11 20:40:29,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:40:29,648 INFO L276 IsEmpty]: Start isEmpty. Operand 9294 states and 15724 transitions. [2024-11-11 20:40:29,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-11 20:40:29,670 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:40:29,670 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:40:29,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 20:40:29,670 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:40:29,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:40:29,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1857425092, now seen corresponding path program 1 times [2024-11-11 20:40:29,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:40:29,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274081607] [2024-11-11 20:40:29,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:40:29,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:40:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:29,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:40:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:29,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:40:29,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:29,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:40:29,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:29,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:40:29,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:29,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:40:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:29,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:40:29,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:29,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:40:29,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:29,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 20:40:29,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:29,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 20:40:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:29,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 20:40:29,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:29,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-11 20:40:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:29,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 20:40:29,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:29,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-11 20:40:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:29,862 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-11 20:40:29,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:40:29,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274081607] [2024-11-11 20:40:29,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274081607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:40:29,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:40:29,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:40:29,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649534381] [2024-11-11 20:40:29,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:40:29,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:40:29,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:40:29,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:40:29,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:40:29,864 INFO L87 Difference]: Start difference. First operand 9294 states and 15724 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:40:31,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:40:31,498 INFO L93 Difference]: Finished difference Result 24143 states and 41610 transitions. [2024-11-11 20:40:31,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:40:31,498 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2024-11-11 20:40:31,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:40:31,573 INFO L225 Difference]: With dead ends: 24143 [2024-11-11 20:40:31,573 INFO L226 Difference]: Without dead ends: 16440 [2024-11-11 20:40:31,605 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:40:31,606 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 1272 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 1654 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 2097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 1654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 20:40:31,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 838 Invalid, 2097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 1654 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 20:40:31,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16440 states. [2024-11-11 20:40:32,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16440 to 16247. [2024-11-11 20:40:32,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16247 states, 13439 states have (on average 1.6010863903564254) internal successors, (21517), 13446 states have internal predecessors, (21517), 2780 states have call successors, (2780), 23 states have call predecessors, (2780), 27 states have return successors, (3119), 2779 states have call predecessors, (3119), 2779 states have call successors, (3119) [2024-11-11 20:40:32,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16247 states to 16247 states and 27416 transitions. [2024-11-11 20:40:32,244 INFO L78 Accepts]: Start accepts. Automaton has 16247 states and 27416 transitions. Word has length 127 [2024-11-11 20:40:32,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:40:32,245 INFO L471 AbstractCegarLoop]: Abstraction has 16247 states and 27416 transitions. [2024-11-11 20:40:32,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:40:32,245 INFO L276 IsEmpty]: Start isEmpty. Operand 16247 states and 27416 transitions. [2024-11-11 20:40:32,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-11 20:40:32,275 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:40:32,275 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:40:32,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 20:40:32,275 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:40:32,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:40:32,276 INFO L85 PathProgramCache]: Analyzing trace with hash 786594501, now seen corresponding path program 1 times [2024-11-11 20:40:32,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:40:32,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242104599] [2024-11-11 20:40:32,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:40:32,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:40:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:32,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:40:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:32,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:40:32,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:32,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:40:32,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:32,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:40:32,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:32,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:40:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:32,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:40:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:32,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 20:40:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:32,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-11 20:40:32,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:32,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-11 20:40:32,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:32,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 20:40:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:32,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-11 20:40:32,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:32,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-11 20:40:32,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:32,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 20:40:32,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:32,386 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-11 20:40:32,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:40:32,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242104599] [2024-11-11 20:40:32,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242104599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:40:32,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:40:32,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:40:32,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607300947] [2024-11-11 20:40:32,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:40:32,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:40:32,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:40:32,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:40:32,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:40:32,387 INFO L87 Difference]: Start difference. First operand 16247 states and 27416 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:40:34,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:40:34,274 INFO L93 Difference]: Finished difference Result 43109 states and 74209 transitions. [2024-11-11 20:40:34,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:40:34,274 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 128 [2024-11-11 20:40:34,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:40:34,416 INFO L225 Difference]: With dead ends: 43109 [2024-11-11 20:40:34,417 INFO L226 Difference]: Without dead ends: 29095 [2024-11-11 20:40:34,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:40:34,462 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 1270 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 1656 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1285 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 2099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 1656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 20:40:34,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1285 Valid, 815 Invalid, 2099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 1656 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 20:40:34,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29095 states. [2024-11-11 20:40:35,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29095 to 28902. [2024-11-11 20:40:35,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28902 states, 24055 states have (on average 1.5972147162752026) internal successors, (38421), 24062 states have internal predecessors, (38421), 4819 states have call successors, (4819), 23 states have call predecessors, (4819), 27 states have return successors, (5432), 4818 states have call predecessors, (5432), 4818 states have call successors, (5432) [2024-11-11 20:40:35,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28902 states to 28902 states and 48672 transitions. [2024-11-11 20:40:35,720 INFO L78 Accepts]: Start accepts. Automaton has 28902 states and 48672 transitions. Word has length 128 [2024-11-11 20:40:35,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:40:35,720 INFO L471 AbstractCegarLoop]: Abstraction has 28902 states and 48672 transitions. [2024-11-11 20:40:35,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:40:35,721 INFO L276 IsEmpty]: Start isEmpty. Operand 28902 states and 48672 transitions. [2024-11-11 20:40:35,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-11 20:40:35,751 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:40:35,751 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:40:35,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-11 20:40:35,751 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:40:35,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:40:35,752 INFO L85 PathProgramCache]: Analyzing trace with hash -310730562, now seen corresponding path program 1 times [2024-11-11 20:40:35,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:40:35,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344014506] [2024-11-11 20:40:35,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:40:35,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:40:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:35,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:40:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:35,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:40:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:35,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:40:35,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:35,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:40:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:35,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:40:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:36,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:40:36,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:36,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 20:40:36,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:36,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-11 20:40:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:36,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-11 20:40:36,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:36,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-11 20:40:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:36,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 20:40:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:36,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-11 20:40:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:36,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-11 20:40:36,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:36,118 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-11 20:40:36,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:40:36,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344014506] [2024-11-11 20:40:36,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344014506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:40:36,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:40:36,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:40:36,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274146585] [2024-11-11 20:40:36,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:40:36,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:40:36,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:40:36,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:40:36,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:40:36,120 INFO L87 Difference]: Start difference. First operand 28902 states and 48672 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:40:38,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:40:38,826 INFO L93 Difference]: Finished difference Result 78871 states and 134968 transitions. [2024-11-11 20:40:38,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:40:38,827 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 129 [2024-11-11 20:40:38,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:40:39,032 INFO L225 Difference]: With dead ends: 78871 [2024-11-11 20:40:39,033 INFO L226 Difference]: Without dead ends: 52974 [2024-11-11 20:40:39,097 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:40:39,097 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 1268 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 1643 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 2087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 1643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 20:40:39,098 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 824 Invalid, 2087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 1643 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 20:40:39,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52974 states. [2024-11-11 20:40:41,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52974 to 52781. [2024-11-11 20:40:41,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52781 states, 44219 states have (on average 1.591849657387096) internal successors, (70390), 44226 states have internal predecessors, (70390), 8534 states have call successors, (8534), 23 states have call predecessors, (8534), 27 states have return successors, (9679), 8533 states have call predecessors, (9679), 8533 states have call successors, (9679) [2024-11-11 20:40:41,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52781 states to 52781 states and 88603 transitions. [2024-11-11 20:40:41,570 INFO L78 Accepts]: Start accepts. Automaton has 52781 states and 88603 transitions. Word has length 129 [2024-11-11 20:40:41,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:40:41,572 INFO L471 AbstractCegarLoop]: Abstraction has 52781 states and 88603 transitions. [2024-11-11 20:40:41,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:40:41,572 INFO L276 IsEmpty]: Start isEmpty. Operand 52781 states and 88603 transitions. [2024-11-11 20:40:41,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-11 20:40:41,605 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:40:41,605 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:40:41,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-11 20:40:41,605 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:40:41,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:40:41,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1115203653, now seen corresponding path program 1 times [2024-11-11 20:40:41,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:40:41,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54972305] [2024-11-11 20:40:41,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:40:41,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:40:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:41,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:40:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:41,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:40:41,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:41,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:40:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:41,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:40:41,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:41,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:40:41,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:41,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:40:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:41,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 20:40:41,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:41,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-11 20:40:41,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:41,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-11 20:40:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:41,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 20:40:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:41,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-11 20:40:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:41,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-11 20:40:41,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:41,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-11 20:40:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:41,713 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-11 20:40:41,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:40:41,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54972305] [2024-11-11 20:40:41,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54972305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:40:41,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:40:41,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:40:41,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108979526] [2024-11-11 20:40:41,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:40:41,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:40:41,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:40:41,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:40:41,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:40:41,715 INFO L87 Difference]: Start difference. First operand 52781 states and 88603 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:40:45,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:40:45,069 INFO L93 Difference]: Finished difference Result 98642 states and 169155 transitions. [2024-11-11 20:40:45,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:40:45,069 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 130 [2024-11-11 20:40:45,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:40:45,691 INFO L225 Difference]: With dead ends: 98642 [2024-11-11 20:40:45,691 INFO L226 Difference]: Without dead ends: 98433 [2024-11-11 20:40:45,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:40:45,739 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 1263 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 1657 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1277 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 2091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 1657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-11 20:40:45,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1277 Valid, 852 Invalid, 2091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 1657 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-11 20:40:45,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98433 states. [2024-11-11 20:40:48,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98433 to 98240. [2024-11-11 20:40:48,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98240 states, 82879 states have (on average 1.5849612085087899) internal successors, (131360), 82886 states have internal predecessors, (131360), 15333 states have call successors, (15333), 23 states have call predecessors, (15333), 27 states have return successors, (17524), 15332 states have call predecessors, (17524), 15332 states have call successors, (17524) [2024-11-11 20:40:49,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98240 states to 98240 states and 164217 transitions. [2024-11-11 20:40:49,700 INFO L78 Accepts]: Start accepts. Automaton has 98240 states and 164217 transitions. Word has length 130 [2024-11-11 20:40:49,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:40:49,704 INFO L471 AbstractCegarLoop]: Abstraction has 98240 states and 164217 transitions. [2024-11-11 20:40:49,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:40:49,705 INFO L276 IsEmpty]: Start isEmpty. Operand 98240 states and 164217 transitions. [2024-11-11 20:40:49,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-11 20:40:49,747 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:40:49,747 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:40:49,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-11 20:40:49,747 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:40:49,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:40:49,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1651072355, now seen corresponding path program 1 times [2024-11-11 20:40:49,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:40:49,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545500925] [2024-11-11 20:40:49,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:40:49,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:40:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:50,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:40:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:50,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:40:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:50,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:40:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:50,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:40:50,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:50,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:40:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:50,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:40:50,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:50,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:40:50,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:50,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-11 20:40:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:50,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-11 20:40:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:50,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-11 20:40:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:50,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-11 20:40:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:50,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-11 20:40:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:50,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-11 20:40:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:40:50,200 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-11 20:40:50,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:40:50,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545500925] [2024-11-11 20:40:50,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545500925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:40:50,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:40:50,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-11 20:40:50,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089596906] [2024-11-11 20:40:50,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:40:50,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-11 20:40:50,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:40:50,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-11 20:40:50,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2024-11-11 20:40:50,201 INFO L87 Difference]: Start difference. First operand 98240 states and 164217 transitions. Second operand has 18 states, 16 states have (on average 5.625) internal successors, (90), 12 states have internal predecessors, (90), 6 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-11 20:41:01,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:41:01,289 INFO L93 Difference]: Finished difference Result 196784 states and 340726 transitions. [2024-11-11 20:41:01,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-11 20:41:01,290 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 5.625) internal successors, (90), 12 states have internal predecessors, (90), 6 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 131 [2024-11-11 20:41:01,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:41:02,575 INFO L225 Difference]: With dead ends: 196784 [2024-11-11 20:41:02,575 INFO L226 Difference]: Without dead ends: 196581 [2024-11-11 20:41:02,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1380 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=900, Invalid=4070, Unknown=0, NotChecked=0, Total=4970 [2024-11-11 20:41:02,648 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 4774 mSDsluCounter, 2763 mSDsCounter, 0 mSdLazyCounter, 10592 mSolverCounterSat, 1584 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4774 SdHoareTripleChecker+Valid, 2996 SdHoareTripleChecker+Invalid, 12176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1584 IncrementalHoareTripleChecker+Valid, 10592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-11 20:41:02,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4774 Valid, 2996 Invalid, 12176 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1584 Valid, 10592 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-11 20:41:02,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196581 states.