./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_product18.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 e1a1a15d818854b6fd39e860ed8f86805463715275e4ae9feedab248e5877daf --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 02:55:18,944 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 02:55:19,003 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 02:55:19,009 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 02:55:19,010 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 02:55:19,034 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 02:55:19,035 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 02:55:19,035 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 02:55:19,036 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 02:55:19,036 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 02:55:19,037 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 02:55:19,037 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 02:55:19,037 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 02:55:19,039 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 02:55:19,039 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 02:55:19,040 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 02:55:19,040 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 02:55:19,040 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 02:55:19,040 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 02:55:19,041 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 02:55:19,041 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 02:55:19,041 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 02:55:19,044 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 02:55:19,044 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 02:55:19,044 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 02:55:19,045 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 02:55:19,045 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 02:55:19,045 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 02:55:19,045 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 02:55:19,045 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 02:55:19,046 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 02:55:19,046 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 02:55:19,046 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 02:55:19,046 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 02:55:19,046 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 02:55:19,046 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 02:55:19,047 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 02:55:19,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 02:55:19,047 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 02:55:19,047 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 02:55:19,047 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 02:55:19,048 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 02:55:19,049 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1a1a15d818854b6fd39e860ed8f86805463715275e4ae9feedab248e5877daf [2024-10-14 02:55:19,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 02:55:19,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 02:55:19,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 02:55:19,332 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 02:55:19,333 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 02:55:19,334 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_product18.cil.c [2024-10-14 02:55:20,696 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 02:55:20,972 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 02:55:20,973 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_product18.cil.c [2024-10-14 02:55:20,996 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33b55167/bdb858d07bc744d1b16965131b0fd069/FLAG16fe2d1fd [2024-10-14 02:55:21,011 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33b55167/bdb858d07bc744d1b16965131b0fd069 [2024-10-14 02:55:21,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 02:55:21,014 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 02:55:21,015 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 02:55:21,015 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 02:55:21,019 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 02:55:21,020 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:55:21" (1/1) ... [2024-10-14 02:55:21,021 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b8d6a2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:21, skipping insertion in model container [2024-10-14 02:55:21,021 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:55:21" (1/1) ... [2024-10-14 02:55:21,090 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 02:55:21,614 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_product18.cil.c[62382,62395] [2024-10-14 02:55:21,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 02:55:21,630 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 02:55:21,637 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-10-14 02:55:21,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [363] [2024-10-14 02:55:21,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [729] [2024-10-14 02:55:21,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1801] [2024-10-14 02:55:21,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1908] [2024-10-14 02:55:21,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1925] [2024-10-14 02:55:21,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2329] [2024-10-14 02:55:21,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2545] [2024-10-14 02:55:21,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [2831] [2024-10-14 02:55:21,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2863] [2024-10-14 02:55:21,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2898] [2024-10-14 02:55:21,729 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_product18.cil.c[62382,62395] [2024-10-14 02:55:21,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 02:55:21,763 INFO L204 MainTranslator]: Completed translation [2024-10-14 02:55:21,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:21 WrapperNode [2024-10-14 02:55:21,763 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 02:55:21,764 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 02:55:21,764 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 02:55:21,764 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 02:55:21,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:21" (1/1) ... [2024-10-14 02:55:21,794 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:21" (1/1) ... [2024-10-14 02:55:21,832 INFO L138 Inliner]: procedures = 127, calls = 186, calls flagged for inlining = 57, calls inlined = 49, statements flattened = 877 [2024-10-14 02:55:21,832 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 02:55:21,835 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 02:55:21,838 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 02:55:21,838 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 02:55:21,850 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:21" (1/1) ... [2024-10-14 02:55:21,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:21" (1/1) ... [2024-10-14 02:55:21,857 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:21" (1/1) ... [2024-10-14 02:55:21,890 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-10-14 02:55:21,891 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:21" (1/1) ... [2024-10-14 02:55:21,891 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:21" (1/1) ... [2024-10-14 02:55:21,902 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:21" (1/1) ... [2024-10-14 02:55:21,911 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:21" (1/1) ... [2024-10-14 02:55:21,914 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:21" (1/1) ... [2024-10-14 02:55:21,916 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:21" (1/1) ... [2024-10-14 02:55:21,924 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 02:55:21,925 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 02:55:21,925 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 02:55:21,925 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 02:55:21,926 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:21" (1/1) ... [2024-10-14 02:55:21,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 02:55:21,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:55:21,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 02:55:21,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 02:55:21,991 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-14 02:55:21,992 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-14 02:55:21,992 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-14 02:55:21,992 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-14 02:55:21,992 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-10-14 02:55:21,992 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-10-14 02:55:21,992 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-14 02:55:21,992 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-14 02:55:21,993 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-10-14 02:55:21,993 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-10-14 02:55:21,993 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-14 02:55:21,993 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-14 02:55:21,993 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-10-14 02:55:21,993 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-10-14 02:55:21,993 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-14 02:55:21,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-14 02:55:21,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 02:55:21,994 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-10-14 02:55:21,994 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-10-14 02:55:21,994 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-14 02:55:21,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-14 02:55:21,994 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-14 02:55:21,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-14 02:55:21,994 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-14 02:55:21,994 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-14 02:55:21,995 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2024-10-14 02:55:21,995 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2024-10-14 02:55:21,995 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-10-14 02:55:21,995 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-10-14 02:55:21,995 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-14 02:55:21,995 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-14 02:55:21,995 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-14 02:55:21,995 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-14 02:55:21,995 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-10-14 02:55:21,995 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-10-14 02:55:21,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 02:55:21,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 02:55:21,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 02:55:21,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-14 02:55:21,996 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-14 02:55:21,996 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-14 02:55:21,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 02:55:21,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 02:55:22,171 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 02:55:22,173 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 02:55:22,777 INFO L? ?]: Removed 399 outVars from TransFormulas that were not future-live. [2024-10-14 02:55:22,777 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 02:55:22,844 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 02:55:22,844 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 02:55:22,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:55:22 BoogieIcfgContainer [2024-10-14 02:55:22,845 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 02:55:22,850 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 02:55:22,850 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 02:55:22,852 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 02:55:22,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:55:21" (1/3) ... [2024-10-14 02:55:22,854 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b7eef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:55:22, skipping insertion in model container [2024-10-14 02:55:22,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:21" (2/3) ... [2024-10-14 02:55:22,855 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b7eef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:55:22, skipping insertion in model container [2024-10-14 02:55:22,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:55:22" (3/3) ... [2024-10-14 02:55:22,858 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product18.cil.c [2024-10-14 02:55:22,875 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 02:55:22,875 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 02:55:22,951 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 02:55:22,957 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;@27a920d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 02:55:22,958 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 02:55:22,967 INFO L276 IsEmpty]: Start isEmpty. Operand has 273 states, 212 states have (on average 1.6037735849056605) internal successors, (340), 214 states have internal predecessors, (340), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-10-14 02:55:22,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-14 02:55:22,988 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:22,989 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:22,990 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:22,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:22,996 INFO L85 PathProgramCache]: Analyzing trace with hash 2032787819, now seen corresponding path program 1 times [2024-10-14 02:55:23,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:23,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104581155] [2024-10-14 02:55:23,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:23,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:23,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:23,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:23,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:23,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:55:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:23,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 02:55:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:23,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 02:55:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:23,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 02:55:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:23,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 02:55:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:23,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 02:55:23,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:23,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 02:55:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:23,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 02:55:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:23,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 02:55:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:23,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 02:55:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:23,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 02:55:23,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:23,541 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-14 02:55:23,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:23,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104581155] [2024-10-14 02:55:23,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104581155] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:55:23,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255607510] [2024-10-14 02:55:23,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:23,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:55:23,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:55:23,544 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 02:55:23,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 02:55:23,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:23,795 INFO L255 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-14 02:55:23,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:55:23,820 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 02:55:23,822 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:55:23,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255607510] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:23,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:55:23,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-10-14 02:55:23,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76360354] [2024-10-14 02:55:23,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:23,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 02:55:23,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:23,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 02:55:23,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 02:55:23,857 INFO L87 Difference]: Start difference. First operand has 273 states, 212 states have (on average 1.6037735849056605) internal successors, (340), 214 states have internal predecessors, (340), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:55:23,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:23,913 INFO L93 Difference]: Finished difference Result 401 states and 607 transitions. [2024-10-14 02:55:23,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 02:55:23,916 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 101 [2024-10-14 02:55:23,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:23,925 INFO L225 Difference]: With dead ends: 401 [2024-10-14 02:55:23,926 INFO L226 Difference]: Without dead ends: 270 [2024-10-14 02:55:23,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 02:55:23,931 INFO L432 NwaCegarLoop]: 405 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:23,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 405 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 02:55:23,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-10-14 02:55:23,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2024-10-14 02:55:23,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 210 states have (on average 1.5857142857142856) internal successors, (333), 211 states have internal predecessors, (333), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-14 02:55:23,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 414 transitions. [2024-10-14 02:55:23,997 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 414 transitions. Word has length 101 [2024-10-14 02:55:23,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:23,998 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 414 transitions. [2024-10-14 02:55:23,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:55:23,999 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 414 transitions. [2024-10-14 02:55:24,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-14 02:55:24,009 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:24,009 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:24,029 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 02:55:24,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-10-14 02:55:24,211 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:24,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:24,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1978718919, now seen corresponding path program 1 times [2024-10-14 02:55:24,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:24,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697461568] [2024-10-14 02:55:24,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:24,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:24,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:24,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:24,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:24,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:24,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:24,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:55:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:24,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 02:55:24,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:24,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 02:55:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:24,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 02:55:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:24,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 02:55:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:24,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 02:55:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:24,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 02:55:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:24,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 02:55:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:24,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 02:55:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:24,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 02:55:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:24,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 02:55:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:24,481 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-14 02:55:24,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:24,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697461568] [2024-10-14 02:55:24,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697461568] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:55:24,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073188731] [2024-10-14 02:55:24,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:24,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:55:24,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:55:24,488 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 02:55:24,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 02:55:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:24,737 INFO L255 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 02:55:24,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:55:24,791 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 02:55:24,792 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:55:24,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073188731] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:24,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:55:24,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-14 02:55:24,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080579866] [2024-10-14 02:55:24,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:24,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 02:55:24,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:24,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 02:55:24,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:55:24,797 INFO L87 Difference]: Start difference. First operand 270 states and 414 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:55:24,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:24,870 INFO L93 Difference]: Finished difference Result 397 states and 594 transitions. [2024-10-14 02:55:24,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 02:55:24,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 102 [2024-10-14 02:55:24,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:24,873 INFO L225 Difference]: With dead ends: 397 [2024-10-14 02:55:24,873 INFO L226 Difference]: Without dead ends: 272 [2024-10-14 02:55:24,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:55:24,875 INFO L432 NwaCegarLoop]: 402 mSDtfsCounter, 0 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:24,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 803 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 02:55:24,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-10-14 02:55:24,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2024-10-14 02:55:24,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 212 states have (on average 1.580188679245283) internal successors, (335), 213 states have internal predecessors, (335), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-14 02:55:24,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 416 transitions. [2024-10-14 02:55:24,895 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 416 transitions. Word has length 102 [2024-10-14 02:55:24,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:24,895 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 416 transitions. [2024-10-14 02:55:24,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:55:24,896 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 416 transitions. [2024-10-14 02:55:24,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-14 02:55:24,898 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:24,898 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:24,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-14 02:55:25,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-10-14 02:55:25,099 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:25,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:25,100 INFO L85 PathProgramCache]: Analyzing trace with hash 123062674, now seen corresponding path program 1 times [2024-10-14 02:55:25,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:25,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557035533] [2024-10-14 02:55:25,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:25,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:25,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:25,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:25,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:25,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:25,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:25,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:55:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:25,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 02:55:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:25,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 02:55:25,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:25,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 02:55:25,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:25,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-14 02:55:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:25,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 02:55:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:25,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 02:55:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:25,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 02:55:25,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:25,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 02:55:25,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:25,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-14 02:55:25,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:25,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 02:55:25,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:25,354 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 02:55:25,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:25,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557035533] [2024-10-14 02:55:25,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557035533] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:55:25,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591003898] [2024-10-14 02:55:25,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:25,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:55:25,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:55:25,356 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 02:55:25,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 02:55:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:25,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 02:55:25,599 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:55:25,616 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 02:55:25,617 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:55:25,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591003898] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:25,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:55:25,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-14 02:55:25,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435338340] [2024-10-14 02:55:25,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:25,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 02:55:25,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:25,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 02:55:25,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:55:25,619 INFO L87 Difference]: Start difference. First operand 272 states and 416 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:55:25,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:25,667 INFO L93 Difference]: Finished difference Result 574 states and 891 transitions. [2024-10-14 02:55:25,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 02:55:25,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 109 [2024-10-14 02:55:25,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:25,674 INFO L225 Difference]: With dead ends: 574 [2024-10-14 02:55:25,674 INFO L226 Difference]: Without dead ends: 324 [2024-10-14 02:55:25,676 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:55:25,677 INFO L432 NwaCegarLoop]: 416 mSDtfsCounter, 102 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:25,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 775 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 02:55:25,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-10-14 02:55:25,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 319. [2024-10-14 02:55:25,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 248 states have (on average 1.592741935483871) internal successors, (395), 249 states have internal predecessors, (395), 52 states have call successors, (52), 18 states have call predecessors, (52), 18 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-14 02:55:25,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 498 transitions. [2024-10-14 02:55:25,714 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 498 transitions. Word has length 109 [2024-10-14 02:55:25,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:25,716 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 498 transitions. [2024-10-14 02:55:25,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:55:25,716 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 498 transitions. [2024-10-14 02:55:25,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-14 02:55:25,718 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:25,718 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:25,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 02:55:25,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:55:25,920 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:25,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:25,921 INFO L85 PathProgramCache]: Analyzing trace with hash 314138532, now seen corresponding path program 1 times [2024-10-14 02:55:25,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:25,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524714330] [2024-10-14 02:55:25,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:25,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:26,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:26,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:55:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 02:55:26,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 02:55:26,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 02:55:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 02:55:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 02:55:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:55:26,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 02:55:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 02:55:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 02:55:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 02:55:26,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,129 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 02:55:26,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:26,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524714330] [2024-10-14 02:55:26,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524714330] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:55:26,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509883593] [2024-10-14 02:55:26,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:26,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:55:26,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:55:26,132 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 02:55:26,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 02:55:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 1035 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 02:55:26,358 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:55:26,437 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-14 02:55:26,437 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:55:26,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509883593] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:26,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:55:26,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-14 02:55:26,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203668374] [2024-10-14 02:55:26,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:26,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 02:55:26,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:26,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 02:55:26,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-14 02:55:26,439 INFO L87 Difference]: Start difference. First operand 319 states and 498 transitions. Second operand has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 02:55:26,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:26,504 INFO L93 Difference]: Finished difference Result 633 states and 990 transitions. [2024-10-14 02:55:26,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 02:55:26,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 110 [2024-10-14 02:55:26,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:26,508 INFO L225 Difference]: With dead ends: 633 [2024-10-14 02:55:26,508 INFO L226 Difference]: Without dead ends: 321 [2024-10-14 02:55:26,509 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-14 02:55:26,510 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 2 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1565 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:26,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1565 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 02:55:26,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-10-14 02:55:26,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2024-10-14 02:55:26,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 249 states have (on average 1.5903614457831325) internal successors, (396), 251 states have internal predecessors, (396), 52 states have call successors, (52), 18 states have call predecessors, (52), 19 states have return successors, (53), 51 states have call predecessors, (53), 51 states have call successors, (53) [2024-10-14 02:55:26,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 501 transitions. [2024-10-14 02:55:26,523 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 501 transitions. Word has length 110 [2024-10-14 02:55:26,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:26,523 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 501 transitions. [2024-10-14 02:55:26,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 02:55:26,523 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 501 transitions. [2024-10-14 02:55:26,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-14 02:55:26,525 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:26,525 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:26,541 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 02:55:26,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:55:26,726 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:26,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:26,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1035768482, now seen corresponding path program 1 times [2024-10-14 02:55:26,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:26,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235921248] [2024-10-14 02:55:26,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:26,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:26,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:26,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:26,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:26,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 02:55:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-14 02:55:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-14 02:55:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 02:55:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:55:26,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 02:55:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 02:55:26,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 02:55:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 02:55:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 02:55:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,903 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 02:55:26,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:26,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235921248] [2024-10-14 02:55:26,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235921248] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:55:26,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254128500] [2024-10-14 02:55:26,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:26,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:55:26,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:55:26,907 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 02:55:26,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 02:55:27,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:27,117 INFO L255 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 02:55:27,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:55:27,168 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-14 02:55:27,168 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:55:27,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254128500] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:27,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:55:27,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-10-14 02:55:27,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624431235] [2024-10-14 02:55:27,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:27,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 02:55:27,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:27,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 02:55:27,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-14 02:55:27,172 INFO L87 Difference]: Start difference. First operand 321 states and 501 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 02:55:27,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:27,252 INFO L93 Difference]: Finished difference Result 635 states and 995 transitions. [2024-10-14 02:55:27,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 02:55:27,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 111 [2024-10-14 02:55:27,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:27,256 INFO L225 Difference]: With dead ends: 635 [2024-10-14 02:55:27,256 INFO L226 Difference]: Without dead ends: 323 [2024-10-14 02:55:27,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-14 02:55:27,259 INFO L432 NwaCegarLoop]: 392 mSDtfsCounter, 2 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1551 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:27,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1551 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 02:55:27,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-10-14 02:55:27,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2024-10-14 02:55:27,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 250 states have (on average 1.588) internal successors, (397), 253 states have internal predecessors, (397), 52 states have call successors, (52), 18 states have call predecessors, (52), 20 states have return successors, (58), 51 states have call predecessors, (58), 51 states have call successors, (58) [2024-10-14 02:55:27,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 507 transitions. [2024-10-14 02:55:27,274 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 507 transitions. Word has length 111 [2024-10-14 02:55:27,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:27,274 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 507 transitions. [2024-10-14 02:55:27,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 02:55:27,274 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 507 transitions. [2024-10-14 02:55:27,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 02:55:27,276 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:27,276 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:27,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-14 02:55:27,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:55:27,478 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:27,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:27,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1408864116, now seen corresponding path program 1 times [2024-10-14 02:55:27,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:27,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820798524] [2024-10-14 02:55:27,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:27,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:27,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:27,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:27,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:27,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:27,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:27,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:27,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:27,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 02:55:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:27,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 02:55:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:27,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 02:55:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:27,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 02:55:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:27,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 02:55:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:27,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 02:55:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:27,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 02:55:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:27,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 02:55:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:27,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 02:55:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:27,638 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 02:55:27,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:27,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820798524] [2024-10-14 02:55:27,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820798524] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:27,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:27,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 02:55:27,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85067360] [2024-10-14 02:55:27,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:27,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 02:55:27,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:27,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 02:55:27,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 02:55:27,640 INFO L87 Difference]: Start difference. First operand 323 states and 507 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 02:55:28,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:28,881 INFO L93 Difference]: Finished difference Result 702 states and 1112 transitions. [2024-10-14 02:55:28,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 02:55:28,882 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 112 [2024-10-14 02:55:28,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:28,885 INFO L225 Difference]: With dead ends: 702 [2024-10-14 02:55:28,885 INFO L226 Difference]: Without dead ends: 398 [2024-10-14 02:55:28,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-14 02:55:28,886 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 874 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 1815 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 2054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 1815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:28,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [875 Valid, 968 Invalid, 2054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 1815 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 02:55:28,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-10-14 02:55:28,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 323. [2024-10-14 02:55:28,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 250 states have (on average 1.588) internal successors, (397), 253 states have internal predecessors, (397), 52 states have call successors, (52), 18 states have call predecessors, (52), 20 states have return successors, (57), 51 states have call predecessors, (57), 51 states have call successors, (57) [2024-10-14 02:55:28,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 506 transitions. [2024-10-14 02:55:28,918 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 506 transitions. Word has length 112 [2024-10-14 02:55:28,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:28,918 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 506 transitions. [2024-10-14 02:55:28,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 02:55:28,919 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 506 transitions. [2024-10-14 02:55:28,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-14 02:55:28,920 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:28,920 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:28,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 02:55:28,921 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:28,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:28,922 INFO L85 PathProgramCache]: Analyzing trace with hash -885901420, now seen corresponding path program 2 times [2024-10-14 02:55:28,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:28,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812617065] [2024-10-14 02:55:28,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:28,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:29,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:29,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:29,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:29,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:29,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:29,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:29,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 02:55:29,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:29,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 02:55:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:29,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 02:55:29,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:29,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 02:55:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:29,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 02:55:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:29,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 02:55:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:29,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 02:55:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:29,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 02:55:29,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:29,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 02:55:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:29,117 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 02:55:29,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:29,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812617065] [2024-10-14 02:55:29,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812617065] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:29,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:29,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 02:55:29,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365966400] [2024-10-14 02:55:29,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:29,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 02:55:29,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:29,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 02:55:29,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 02:55:29,120 INFO L87 Difference]: Start difference. First operand 323 states and 506 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, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 02:55:30,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:30,689 INFO L93 Difference]: Finished difference Result 704 states and 1115 transitions. [2024-10-14 02:55:30,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 02:55:30,690 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, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 113 [2024-10-14 02:55:30,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:30,692 INFO L225 Difference]: With dead ends: 704 [2024-10-14 02:55:30,692 INFO L226 Difference]: Without dead ends: 400 [2024-10-14 02:55:30,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-14 02:55:30,694 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 870 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 1837 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 2076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 1837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:30,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 968 Invalid, 2076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 1837 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 02:55:30,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-10-14 02:55:30,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 325. [2024-10-14 02:55:30,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 251 states have (on average 1.5856573705179282) internal successors, (398), 255 states have internal predecessors, (398), 52 states have call successors, (52), 18 states have call predecessors, (52), 21 states have return successors, (59), 51 states have call predecessors, (59), 51 states have call successors, (59) [2024-10-14 02:55:30,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 509 transitions. [2024-10-14 02:55:30,720 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 509 transitions. Word has length 113 [2024-10-14 02:55:30,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:30,721 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 509 transitions. [2024-10-14 02:55:30,721 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, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 02:55:30,721 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 509 transitions. [2024-10-14 02:55:30,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-14 02:55:30,722 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:30,722 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:30,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 02:55:30,723 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:30,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:30,723 INFO L85 PathProgramCache]: Analyzing trace with hash 612738575, now seen corresponding path program 1 times [2024-10-14 02:55:30,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:30,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026189496] [2024-10-14 02:55:30,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:30,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:30,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:30,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:30,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:30,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:30,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:30,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:30,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:30,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:30,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-14 02:55:30,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:30,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 02:55:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:30,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 02:55:30,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:30,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 02:55:30,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:30,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 02:55:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:30,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 02:55:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:30,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 02:55:30,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:30,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 02:55:30,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:30,962 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 02:55:30,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:30,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026189496] [2024-10-14 02:55:30,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026189496] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:30,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:30,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 02:55:30,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967797977] [2024-10-14 02:55:30,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:30,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 02:55:30,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:30,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 02:55:30,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-14 02:55:30,965 INFO L87 Difference]: Start difference. First operand 325 states and 509 transitions. Second operand has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 02:55:32,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:32,594 INFO L93 Difference]: Finished difference Result 702 states and 1110 transitions. [2024-10-14 02:55:32,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 02:55:32,595 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 114 [2024-10-14 02:55:32,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:32,597 INFO L225 Difference]: With dead ends: 702 [2024-10-14 02:55:32,597 INFO L226 Difference]: Without dead ends: 400 [2024-10-14 02:55:32,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-14 02:55:32,599 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 875 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3006 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 3253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 3006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:32,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [876 Valid, 1342 Invalid, 3253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 3006 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 02:55:32,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-10-14 02:55:32,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 325. [2024-10-14 02:55:32,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 251 states have (on average 1.5856573705179282) internal successors, (398), 255 states have internal predecessors, (398), 52 states have call successors, (52), 18 states have call predecessors, (52), 21 states have return successors, (58), 51 states have call predecessors, (58), 51 states have call successors, (58) [2024-10-14 02:55:32,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 508 transitions. [2024-10-14 02:55:32,616 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 508 transitions. Word has length 114 [2024-10-14 02:55:32,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:32,616 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 508 transitions. [2024-10-14 02:55:32,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 02:55:32,616 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 508 transitions. [2024-10-14 02:55:32,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-14 02:55:32,618 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:32,618 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:32,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 02:55:32,618 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:32,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:32,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1255967443, now seen corresponding path program 2 times [2024-10-14 02:55:32,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:32,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208072925] [2024-10-14 02:55:32,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:32,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:32,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:32,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:32,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:32,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:32,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:32,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:32,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:32,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:32,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 02:55:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:32,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 02:55:32,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:32,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 02:55:32,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:32,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 02:55:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:32,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 02:55:32,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:32,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 02:55:32,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:32,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 02:55:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:32,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 02:55:32,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:32,771 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 02:55:32,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:32,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208072925] [2024-10-14 02:55:32,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208072925] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:32,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:32,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 02:55:32,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431784345] [2024-10-14 02:55:32,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:32,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 02:55:32,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:32,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 02:55:32,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-14 02:55:32,773 INFO L87 Difference]: Start difference. First operand 325 states and 508 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, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 02:55:34,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:34,361 INFO L93 Difference]: Finished difference Result 704 states and 1116 transitions. [2024-10-14 02:55:34,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 02:55:34,362 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, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 115 [2024-10-14 02:55:34,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:34,364 INFO L225 Difference]: With dead ends: 704 [2024-10-14 02:55:34,364 INFO L226 Difference]: Without dead ends: 402 [2024-10-14 02:55:34,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-14 02:55:34,365 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 871 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3043 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 3287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 3043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:34,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [872 Valid, 1343 Invalid, 3287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 3043 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 02:55:34,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2024-10-14 02:55:34,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 327. [2024-10-14 02:55:34,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 252 states have (on average 1.5833333333333333) internal successors, (399), 257 states have internal predecessors, (399), 52 states have call successors, (52), 18 states have call predecessors, (52), 22 states have return successors, (63), 51 states have call predecessors, (63), 51 states have call successors, (63) [2024-10-14 02:55:34,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 514 transitions. [2024-10-14 02:55:34,383 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 514 transitions. Word has length 115 [2024-10-14 02:55:34,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:34,383 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 514 transitions. [2024-10-14 02:55:34,383 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, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 02:55:34,384 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 514 transitions. [2024-10-14 02:55:34,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-14 02:55:34,385 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:34,386 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:34,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 02:55:34,386 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:34,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:34,386 INFO L85 PathProgramCache]: Analyzing trace with hash -2102170454, now seen corresponding path program 1 times [2024-10-14 02:55:34,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:34,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148458414] [2024-10-14 02:55:34,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:34,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:34,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:34,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:34,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:34,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:34,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:34,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:34,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:34,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:34,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 02:55:34,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:34,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 02:55:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:34,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:55:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:34,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 02:55:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:34,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 02:55:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:34,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-14 02:55:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:34,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 02:55:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:34,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 02:55:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:34,653 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-10-14 02:55:34,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:34,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148458414] [2024-10-14 02:55:34,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148458414] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:55:34,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510769375] [2024-10-14 02:55:34,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:34,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:55:34,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:55:34,656 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 02:55:34,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 02:55:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:34,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 02:55:34,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:55:34,951 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:34,952 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 02:55:35,044 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:35,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510769375] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 02:55:35,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 02:55:35,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-10-14 02:55:35,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289118308] [2024-10-14 02:55:35,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 02:55:35,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 02:55:35,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:35,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 02:55:35,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-10-14 02:55:35,047 INFO L87 Difference]: Start difference. First operand 327 states and 514 transitions. Second operand has 15 states, 14 states have (on average 9.071428571428571) internal successors, (127), 11 states have internal predecessors, (127), 4 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2024-10-14 02:55:36,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:36,872 INFO L93 Difference]: Finished difference Result 1033 states and 1727 transitions. [2024-10-14 02:55:36,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-14 02:55:36,872 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.071428571428571) internal successors, (127), 11 states have internal predecessors, (127), 4 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 116 [2024-10-14 02:55:36,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:36,877 INFO L225 Difference]: With dead ends: 1033 [2024-10-14 02:55:36,877 INFO L226 Difference]: Without dead ends: 732 [2024-10-14 02:55:36,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-10-14 02:55:36,879 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 1854 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 3002 mSolverCounterSat, 551 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1871 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 3553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 551 IncrementalHoareTripleChecker+Valid, 3002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:36,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1871 Valid, 1520 Invalid, 3553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [551 Valid, 3002 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 02:55:36,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2024-10-14 02:55:36,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 642. [2024-10-14 02:55:36,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 503 states have (on average 1.6242544731610338) internal successors, (817), 508 states have internal predecessors, (817), 116 states have call successors, (116), 18 states have call predecessors, (116), 22 states have return successors, (137), 115 states have call predecessors, (137), 115 states have call successors, (137) [2024-10-14 02:55:36,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 1070 transitions. [2024-10-14 02:55:36,916 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 1070 transitions. Word has length 116 [2024-10-14 02:55:36,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:36,916 INFO L471 AbstractCegarLoop]: Abstraction has 642 states and 1070 transitions. [2024-10-14 02:55:36,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.071428571428571) internal successors, (127), 11 states have internal predecessors, (127), 4 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2024-10-14 02:55:36,917 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 1070 transitions. [2024-10-14 02:55:36,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-14 02:55:36,920 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:36,920 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:36,940 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 02:55:37,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:55:37,121 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:37,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:37,121 INFO L85 PathProgramCache]: Analyzing trace with hash 2090395548, now seen corresponding path program 1 times [2024-10-14 02:55:37,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:37,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420223315] [2024-10-14 02:55:37,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:37,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:37,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:37,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:37,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:37,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:37,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:37,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:37,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:37,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:37,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:37,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 02:55:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:37,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 02:55:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:37,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 02:55:37,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:37,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 02:55:37,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:37,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 02:55:37,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:37,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 02:55:37,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:37,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 02:55:37,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:37,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 02:55:37,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:37,222 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:37,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:37,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420223315] [2024-10-14 02:55:37,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420223315] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:37,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:37,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:55:37,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570669985] [2024-10-14 02:55:37,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:37,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:55:37,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:37,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:55:37,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:55:37,224 INFO L87 Difference]: Start difference. First operand 642 states and 1070 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:55:38,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:38,151 INFO L93 Difference]: Finished difference Result 1588 states and 2716 transitions. [2024-10-14 02:55:38,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:55:38,151 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2024-10-14 02:55:38,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:38,156 INFO L225 Difference]: With dead ends: 1588 [2024-10-14 02:55:38,156 INFO L226 Difference]: Without dead ends: 1014 [2024-10-14 02:55:38,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:55:38,158 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 968 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 1372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:38,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 743 Invalid, 1372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 02:55:38,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-10-14 02:55:38,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 934. [2024-10-14 02:55:38,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 731 states have (on average 1.6333789329685362) internal successors, (1194), 736 states have internal predecessors, (1194), 180 states have call successors, (180), 18 states have call predecessors, (180), 22 states have return successors, (211), 179 states have call predecessors, (211), 179 states have call successors, (211) [2024-10-14 02:55:38,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1585 transitions. [2024-10-14 02:55:38,193 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1585 transitions. Word has length 120 [2024-10-14 02:55:38,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:38,193 INFO L471 AbstractCegarLoop]: Abstraction has 934 states and 1585 transitions. [2024-10-14 02:55:38,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:55:38,193 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1585 transitions. [2024-10-14 02:55:38,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-14 02:55:38,197 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:38,197 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:38,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 02:55:38,197 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:38,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:38,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1951047195, now seen corresponding path program 1 times [2024-10-14 02:55:38,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:38,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501049846] [2024-10-14 02:55:38,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:38,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:38,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:38,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:38,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:38,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:38,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:38,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:38,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:38,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:38,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 02:55:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:38,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 02:55:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:38,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 02:55:38,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:38,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 02:55:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:38,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 02:55:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:38,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 02:55:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:38,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 02:55:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:38,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 02:55:38,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:38,276 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:38,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:38,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501049846] [2024-10-14 02:55:38,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501049846] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:38,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:38,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:55:38,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545832653] [2024-10-14 02:55:38,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:38,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:55:38,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:38,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:55:38,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:55:38,278 INFO L87 Difference]: Start difference. First operand 934 states and 1585 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:55:39,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:39,258 INFO L93 Difference]: Finished difference Result 2305 states and 3973 transitions. [2024-10-14 02:55:39,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:55:39,259 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 121 [2024-10-14 02:55:39,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:39,277 INFO L225 Difference]: With dead ends: 2305 [2024-10-14 02:55:39,277 INFO L226 Difference]: Without dead ends: 1489 [2024-10-14 02:55:39,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:55:39,284 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 966 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 981 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:39,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [981 Valid, 719 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 02:55:39,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2024-10-14 02:55:39,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1409. [2024-10-14 02:55:39,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1409 states, 1111 states have (on average 1.6363636363636365) internal successors, (1818), 1116 states have internal predecessors, (1818), 275 states have call successors, (275), 18 states have call predecessors, (275), 22 states have return successors, (306), 274 states have call predecessors, (306), 274 states have call successors, (306) [2024-10-14 02:55:39,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1409 states to 1409 states and 2399 transitions. [2024-10-14 02:55:39,348 INFO L78 Accepts]: Start accepts. Automaton has 1409 states and 2399 transitions. Word has length 121 [2024-10-14 02:55:39,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:39,348 INFO L471 AbstractCegarLoop]: Abstraction has 1409 states and 2399 transitions. [2024-10-14 02:55:39,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:55:39,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1409 states and 2399 transitions. [2024-10-14 02:55:39,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-14 02:55:39,355 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:39,355 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:39,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 02:55:39,356 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:39,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:39,356 INFO L85 PathProgramCache]: Analyzing trace with hash 514118638, now seen corresponding path program 1 times [2024-10-14 02:55:39,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:39,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365214574] [2024-10-14 02:55:39,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:39,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:39,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:39,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:39,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:39,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:39,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:39,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:39,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:39,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 02:55:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:39,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 02:55:39,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:39,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 02:55:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:39,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 02:55:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:39,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-14 02:55:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:39,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 02:55:39,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:39,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 02:55:39,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:39,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 02:55:39,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:39,460 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:39,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:39,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365214574] [2024-10-14 02:55:39,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365214574] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:39,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:39,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:55:39,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292099139] [2024-10-14 02:55:39,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:39,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:55:39,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:39,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:55:39,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:55:39,462 INFO L87 Difference]: Start difference. First operand 1409 states and 2399 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:55:40,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:40,398 INFO L93 Difference]: Finished difference Result 3367 states and 5851 transitions. [2024-10-14 02:55:40,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:55:40,398 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 122 [2024-10-14 02:55:40,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:40,409 INFO L225 Difference]: With dead ends: 3367 [2024-10-14 02:55:40,409 INFO L226 Difference]: Without dead ends: 2204 [2024-10-14 02:55:40,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:55:40,414 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 965 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:40,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 701 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 02:55:40,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2204 states. [2024-10-14 02:55:40,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2204 to 2124. [2024-10-14 02:55:40,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2124 states, 1703 states have (on average 1.639459776864357) internal successors, (2792), 1708 states have internal predecessors, (2792), 398 states have call successors, (398), 18 states have call predecessors, (398), 22 states have return successors, (445), 397 states have call predecessors, (445), 397 states have call successors, (445) [2024-10-14 02:55:40,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2124 states to 2124 states and 3635 transitions. [2024-10-14 02:55:40,499 INFO L78 Accepts]: Start accepts. Automaton has 2124 states and 3635 transitions. Word has length 122 [2024-10-14 02:55:40,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:40,500 INFO L471 AbstractCegarLoop]: Abstraction has 2124 states and 3635 transitions. [2024-10-14 02:55:40,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:55:40,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2124 states and 3635 transitions. [2024-10-14 02:55:40,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-14 02:55:40,508 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:40,508 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:40,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 02:55:40,508 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:40,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:40,509 INFO L85 PathProgramCache]: Analyzing trace with hash -464002310, now seen corresponding path program 1 times [2024-10-14 02:55:40,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:40,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078400260] [2024-10-14 02:55:40,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:40,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:40,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:40,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:40,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:40,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:40,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:40,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:40,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:40,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 02:55:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:40,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 02:55:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:40,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 02:55:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:40,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 02:55:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:40,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 02:55:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:40,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 02:55:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:40,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 02:55:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:40,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 02:55:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:40,632 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:40,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:40,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078400260] [2024-10-14 02:55:40,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078400260] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:40,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:40,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:55:40,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639040620] [2024-10-14 02:55:40,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:40,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:55:40,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:40,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:55:40,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:55:40,635 INFO L87 Difference]: Start difference. First operand 2124 states and 3635 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:55:41,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:41,554 INFO L93 Difference]: Finished difference Result 5009 states and 8764 transitions. [2024-10-14 02:55:41,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:55:41,555 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 123 [2024-10-14 02:55:41,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:41,572 INFO L225 Difference]: With dead ends: 5009 [2024-10-14 02:55:41,573 INFO L226 Difference]: Without dead ends: 3340 [2024-10-14 02:55:41,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:55:41,579 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 963 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:41,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 702 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 02:55:41,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3340 states. [2024-10-14 02:55:41,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3340 to 3260. [2024-10-14 02:55:41,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3260 states, 2660 states have (on average 1.6413533834586467) internal successors, (4366), 2665 states have internal predecessors, (4366), 577 states have call successors, (577), 18 states have call predecessors, (577), 22 states have return successors, (650), 576 states have call predecessors, (650), 576 states have call successors, (650) [2024-10-14 02:55:41,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3260 states to 3260 states and 5593 transitions. [2024-10-14 02:55:41,700 INFO L78 Accepts]: Start accepts. Automaton has 3260 states and 5593 transitions. Word has length 123 [2024-10-14 02:55:41,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:41,701 INFO L471 AbstractCegarLoop]: Abstraction has 3260 states and 5593 transitions. [2024-10-14 02:55:41,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:55:41,701 INFO L276 IsEmpty]: Start isEmpty. Operand 3260 states and 5593 transitions. [2024-10-14 02:55:41,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 02:55:41,713 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:41,713 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:41,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 02:55:41,713 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:41,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:41,714 INFO L85 PathProgramCache]: Analyzing trace with hash -73893678, now seen corresponding path program 1 times [2024-10-14 02:55:41,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:41,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275879247] [2024-10-14 02:55:41,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:41,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:41,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:41,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:41,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:41,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:41,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:41,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:41,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:41,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:41,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:41,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:41,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 02:55:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:41,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 02:55:41,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:41,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 02:55:41,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:41,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 02:55:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:41,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 02:55:41,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:41,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 02:55:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:41,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 02:55:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:41,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 02:55:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:41,833 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:41,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:41,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275879247] [2024-10-14 02:55:41,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275879247] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:41,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:41,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:55:41,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77274438] [2024-10-14 02:55:41,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:41,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:55:41,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:41,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:55:41,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:55:41,836 INFO L87 Difference]: Start difference. First operand 3260 states and 5593 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:55:42,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:42,836 INFO L93 Difference]: Finished difference Result 7964 states and 13962 transitions. [2024-10-14 02:55:42,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:55:42,838 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 124 [2024-10-14 02:55:42,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:42,863 INFO L225 Difference]: With dead ends: 7964 [2024-10-14 02:55:42,863 INFO L226 Difference]: Without dead ends: 5398 [2024-10-14 02:55:42,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:55:42,873 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 960 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 1354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:42,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [975 Valid, 718 Invalid, 1354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 02:55:42,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5398 states. [2024-10-14 02:55:43,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5398 to 5318. [2024-10-14 02:55:43,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5318 states, 4342 states have (on average 1.6326577614002764) internal successors, (7089), 4347 states have internal predecessors, (7089), 953 states have call successors, (953), 18 states have call predecessors, (953), 22 states have return successors, (1070), 952 states have call predecessors, (1070), 952 states have call successors, (1070) [2024-10-14 02:55:43,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5318 states to 5318 states and 9112 transitions. [2024-10-14 02:55:43,092 INFO L78 Accepts]: Start accepts. Automaton has 5318 states and 9112 transitions. Word has length 124 [2024-10-14 02:55:43,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:43,093 INFO L471 AbstractCegarLoop]: Abstraction has 5318 states and 9112 transitions. [2024-10-14 02:55:43,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:55:43,093 INFO L276 IsEmpty]: Start isEmpty. Operand 5318 states and 9112 transitions. [2024-10-14 02:55:43,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 02:55:43,109 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:43,109 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:43,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 02:55:43,110 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:43,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:43,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1398743530, now seen corresponding path program 1 times [2024-10-14 02:55:43,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:43,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966985555] [2024-10-14 02:55:43,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:43,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:43,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:43,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:43,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:43,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:43,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:43,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:43,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:43,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:43,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:43,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 02:55:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:43,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:55:43,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:43,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 02:55:43,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:43,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 02:55:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:43,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 02:55:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:43,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 02:55:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:43,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 02:55:43,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:43,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 02:55:43,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:43,193 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:43,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:43,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966985555] [2024-10-14 02:55:43,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966985555] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:43,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:43,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:55:43,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610027078] [2024-10-14 02:55:43,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:43,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:55:43,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:43,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:55:43,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:55:43,195 INFO L87 Difference]: Start difference. First operand 5318 states and 9112 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:55:44,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:44,286 INFO L93 Difference]: Finished difference Result 13169 states and 23046 transitions. [2024-10-14 02:55:44,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:55:44,287 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 125 [2024-10-14 02:55:44,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:44,326 INFO L225 Difference]: With dead ends: 13169 [2024-10-14 02:55:44,327 INFO L226 Difference]: Without dead ends: 8931 [2024-10-14 02:55:44,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:55:44,340 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 958 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 1325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:44,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [973 Valid, 703 Invalid, 1325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 02:55:44,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8931 states. [2024-10-14 02:55:44,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8931 to 8851. [2024-10-14 02:55:44,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8851 states, 7269 states have (on average 1.629660200852937) internal successors, (11846), 7274 states have internal predecessors, (11846), 1559 states have call successors, (1559), 18 states have call predecessors, (1559), 22 states have return successors, (1754), 1558 states have call predecessors, (1754), 1558 states have call successors, (1754) [2024-10-14 02:55:44,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8851 states to 8851 states and 15159 transitions. [2024-10-14 02:55:44,666 INFO L78 Accepts]: Start accepts. Automaton has 8851 states and 15159 transitions. Word has length 125 [2024-10-14 02:55:44,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:44,667 INFO L471 AbstractCegarLoop]: Abstraction has 8851 states and 15159 transitions. [2024-10-14 02:55:44,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:55:44,667 INFO L276 IsEmpty]: Start isEmpty. Operand 8851 states and 15159 transitions. [2024-10-14 02:55:44,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-14 02:55:44,686 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:44,686 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:44,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 02:55:44,687 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:44,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:44,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1525616816, now seen corresponding path program 1 times [2024-10-14 02:55:44,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:44,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800771812] [2024-10-14 02:55:44,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:44,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:44,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:44,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:44,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:44,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:44,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:44,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:44,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:44,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:44,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:44,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:44,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 02:55:44,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:44,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 02:55:44,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:44,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 02:55:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:44,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 02:55:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:44,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 02:55:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:44,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 02:55:44,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:44,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 02:55:44,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:44,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 02:55:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:44,769 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:44,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:44,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800771812] [2024-10-14 02:55:44,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800771812] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:44,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:44,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:55:44,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033389032] [2024-10-14 02:55:44,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:44,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:55:44,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:44,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:55:44,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:55:44,770 INFO L87 Difference]: Start difference. First operand 8851 states and 15159 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:55:45,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:45,865 INFO L93 Difference]: Finished difference Result 22941 states and 40075 transitions. [2024-10-14 02:55:45,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:55:45,866 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 126 [2024-10-14 02:55:45,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:45,924 INFO L225 Difference]: With dead ends: 22941 [2024-10-14 02:55:45,924 INFO L226 Difference]: Without dead ends: 15603 [2024-10-14 02:55:46,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:55:46,033 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 957 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:46,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 744 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 02:55:46,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15603 states. [2024-10-14 02:55:46,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15603 to 15523. [2024-10-14 02:55:46,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15523 states, 12738 states have (on average 1.6199560370544825) internal successors, (20635), 12743 states have internal predecessors, (20635), 2762 states have call successors, (2762), 18 states have call predecessors, (2762), 22 states have return successors, (3101), 2761 states have call predecessors, (3101), 2761 states have call successors, (3101) [2024-10-14 02:55:46,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15523 states to 15523 states and 26498 transitions. [2024-10-14 02:55:46,576 INFO L78 Accepts]: Start accepts. Automaton has 15523 states and 26498 transitions. Word has length 126 [2024-10-14 02:55:46,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:46,577 INFO L471 AbstractCegarLoop]: Abstraction has 15523 states and 26498 transitions. [2024-10-14 02:55:46,577 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:55:46,577 INFO L276 IsEmpty]: Start isEmpty. Operand 15523 states and 26498 transitions. [2024-10-14 02:55:46,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-14 02:55:46,609 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:46,609 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:46,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 02:55:46,609 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:46,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:46,610 INFO L85 PathProgramCache]: Analyzing trace with hash -220409003, now seen corresponding path program 1 times [2024-10-14 02:55:46,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:46,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632922026] [2024-10-14 02:55:46,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:46,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:46,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:46,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:46,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:46,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:46,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:46,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:46,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:46,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 02:55:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:46,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 02:55:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:46,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 02:55:46,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:46,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 02:55:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:46,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 02:55:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:46,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 02:55:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:46,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 02:55:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:46,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-14 02:55:46,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:46,713 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:46,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:46,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632922026] [2024-10-14 02:55:46,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632922026] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:46,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:46,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:55:46,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965220160] [2024-10-14 02:55:46,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:46,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:55:46,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:46,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:55:46,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:55:46,715 INFO L87 Difference]: Start difference. First operand 15523 states and 26498 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:55:48,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:48,206 INFO L93 Difference]: Finished difference Result 41108 states and 71673 transitions. [2024-10-14 02:55:48,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:55:48,206 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 127 [2024-10-14 02:55:48,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:48,291 INFO L225 Difference]: With dead ends: 41108 [2024-10-14 02:55:48,292 INFO L226 Difference]: Without dead ends: 27718 [2024-10-14 02:55:48,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:55:48,319 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 955 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:48,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 702 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 02:55:48,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27718 states. [2024-10-14 02:55:49,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27718 to 27638. [2024-10-14 02:55:49,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27638 states, 22814 states have (on average 1.615762251249233) internal successors, (36862), 22819 states have internal predecessors, (36862), 4801 states have call successors, (4801), 18 states have call predecessors, (4801), 22 states have return successors, (5414), 4800 states have call predecessors, (5414), 4800 states have call successors, (5414) [2024-10-14 02:55:49,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27638 states to 27638 states and 47077 transitions. [2024-10-14 02:55:49,366 INFO L78 Accepts]: Start accepts. Automaton has 27638 states and 47077 transitions. Word has length 127 [2024-10-14 02:55:49,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:49,366 INFO L471 AbstractCegarLoop]: Abstraction has 27638 states and 47077 transitions. [2024-10-14 02:55:49,366 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:55:49,366 INFO L276 IsEmpty]: Start isEmpty. Operand 27638 states and 47077 transitions. [2024-10-14 02:55:49,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-14 02:55:49,403 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:49,403 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:49,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 02:55:49,403 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:49,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:49,404 INFO L85 PathProgramCache]: Analyzing trace with hash 885101614, now seen corresponding path program 1 times [2024-10-14 02:55:49,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:49,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966249639] [2024-10-14 02:55:49,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:49,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:49,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:49,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:49,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:49,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:49,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:49,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:49,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:49,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:49,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 02:55:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:49,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 02:55:49,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:49,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 02:55:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:49,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-14 02:55:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:49,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 02:55:49,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:49,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 02:55:49,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:49,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 02:55:49,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:49,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 02:55:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:49,527 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:49,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:49,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966249639] [2024-10-14 02:55:49,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966249639] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:49,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:49,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:55:49,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755848475] [2024-10-14 02:55:49,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:49,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:55:49,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:49,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:55:49,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:55:49,530 INFO L87 Difference]: Start difference. First operand 27638 states and 47077 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:55:51,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:51,716 INFO L93 Difference]: Finished difference Result 75300 states and 130467 transitions. [2024-10-14 02:55:51,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:55:51,717 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 128 [2024-10-14 02:55:51,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:52,099 INFO L225 Difference]: With dead ends: 75300 [2024-10-14 02:55:52,099 INFO L226 Difference]: Without dead ends: 50542 [2024-10-14 02:55:52,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:55:52,155 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 952 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 967 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:52,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [967 Valid, 708 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 1032 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 02:55:52,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50542 states. [2024-10-14 02:55:53,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50542 to 50462. [2024-10-14 02:55:54,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50462 states, 41923 states have (on average 1.6103332299692292) internal successors, (67510), 41928 states have internal predecessors, (67510), 8516 states have call successors, (8516), 18 states have call predecessors, (8516), 22 states have return successors, (9661), 8515 states have call predecessors, (9661), 8515 states have call successors, (9661) [2024-10-14 02:55:54,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50462 states to 50462 states and 85687 transitions. [2024-10-14 02:55:54,549 INFO L78 Accepts]: Start accepts. Automaton has 50462 states and 85687 transitions. Word has length 128 [2024-10-14 02:55:54,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:54,549 INFO L471 AbstractCegarLoop]: Abstraction has 50462 states and 85687 transitions. [2024-10-14 02:55:54,549 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:55:54,550 INFO L276 IsEmpty]: Start isEmpty. Operand 50462 states and 85687 transitions. [2024-10-14 02:55:54,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-14 02:55:54,631 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:54,631 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:54,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 02:55:54,631 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:54,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:54,631 INFO L85 PathProgramCache]: Analyzing trace with hash -93750251, now seen corresponding path program 1 times [2024-10-14 02:55:54,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:54,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121047657] [2024-10-14 02:55:54,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:54,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:54,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:54,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:54,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:54,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:54,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:54,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:54,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:54,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:54,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:54,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 02:55:54,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:54,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 02:55:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:54,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 02:55:54,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:54,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 02:55:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:54,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 02:55:54,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:54,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 02:55:54,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:54,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 02:55:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:54,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-14 02:55:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:54,714 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:54,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:54,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121047657] [2024-10-14 02:55:54,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121047657] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:54,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:54,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:55:54,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348785057] [2024-10-14 02:55:54,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:54,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:55:54,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:54,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:55:54,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:55:54,717 INFO L87 Difference]: Start difference. First operand 50462 states and 85687 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:55:57,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:57,435 INFO L93 Difference]: Finished difference Result 94047 states and 163373 transitions. [2024-10-14 02:55:57,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:55:57,436 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 129 [2024-10-14 02:55:57,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:57,736 INFO L225 Difference]: With dead ends: 94047 [2024-10-14 02:55:57,736 INFO L226 Difference]: Without dead ends: 93922 [2024-10-14 02:55:57,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:55:57,774 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 947 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 294 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 294 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:57,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [961 Valid, 712 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [294 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 02:55:57,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93922 states. [2024-10-14 02:56:00,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93922 to 93842. [2024-10-14 02:56:00,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93842 states, 78504 states have (on average 1.6034596963212067) internal successors, (125878), 78509 states have internal predecessors, (125878), 15315 states have call successors, (15315), 18 states have call predecessors, (15315), 22 states have return successors, (17506), 15314 states have call predecessors, (17506), 15314 states have call successors, (17506) [2024-10-14 02:56:01,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93842 states to 93842 states and 158699 transitions. [2024-10-14 02:56:01,075 INFO L78 Accepts]: Start accepts. Automaton has 93842 states and 158699 transitions. Word has length 129 [2024-10-14 02:56:01,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:56:01,076 INFO L471 AbstractCegarLoop]: Abstraction has 93842 states and 158699 transitions. [2024-10-14 02:56:01,076 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:56:01,076 INFO L276 IsEmpty]: Start isEmpty. Operand 93842 states and 158699 transitions. [2024-10-14 02:56:01,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-14 02:56:01,127 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:56:01,127 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:56:01,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 02:56:01,128 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:56:01,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:56:01,128 INFO L85 PathProgramCache]: Analyzing trace with hash -621721745, now seen corresponding path program 1 times [2024-10-14 02:56:01,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:56:01,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127945684] [2024-10-14 02:56:01,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:56:01,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:56:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:01,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:56:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:01,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:56:01,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:01,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:56:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:01,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:56:01,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:01,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:56:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:01,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:56:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:01,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:56:01,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:01,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:56:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:01,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 02:56:01,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:01,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 02:56:01,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:01,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 02:56:01,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:01,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 02:56:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:01,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 02:56:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:01,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 02:56:01,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:01,754 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:56:01,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:56:01,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127945684] [2024-10-14 02:56:01,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127945684] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:56:01,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:56:01,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 02:56:01,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518920863] [2024-10-14 02:56:01,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:56:01,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 02:56:01,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:56:01,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 02:56:01,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:56:01,756 INFO L87 Difference]: Start difference. First operand 93842 states and 158699 transitions. Second operand has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:56:05,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:56:05,352 INFO L93 Difference]: Finished difference Result 94035 states and 162266 transitions. [2024-10-14 02:56:05,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 02:56:05,353 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2024-10-14 02:56:05,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:56:05,735 INFO L225 Difference]: With dead ends: 94035 [2024-10-14 02:56:05,736 INFO L226 Difference]: Without dead ends: 93917 [2024-10-14 02:56:05,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-10-14 02:56:05,778 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 866 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 2188 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 2425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 2188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 02:56:05,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 1087 Invalid, 2425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 2188 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 02:56:05,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93917 states. [2024-10-14 02:56:08,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93917 to 93842. [2024-10-14 02:56:08,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93842 states, 78504 states have (on average 1.6034469581167838) internal successors, (125877), 78509 states have internal predecessors, (125877), 15315 states have call successors, (15315), 18 states have call predecessors, (15315), 22 states have return successors, (17506), 15314 states have call predecessors, (17506), 15314 states have call successors, (17506) [2024-10-14 02:56:09,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93842 states to 93842 states and 158698 transitions. [2024-10-14 02:56:09,321 INFO L78 Accepts]: Start accepts. Automaton has 93842 states and 158698 transitions. Word has length 130 [2024-10-14 02:56:09,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:56:09,321 INFO L471 AbstractCegarLoop]: Abstraction has 93842 states and 158698 transitions. [2024-10-14 02:56:09,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 02:56:09,321 INFO L276 IsEmpty]: Start isEmpty. Operand 93842 states and 158698 transitions. [2024-10-14 02:56:09,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-14 02:56:09,378 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:56:09,378 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:56:09,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 02:56:09,379 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:56:09,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:56:09,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1566627093, now seen corresponding path program 1 times [2024-10-14 02:56:09,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:56:09,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116645081] [2024-10-14 02:56:09,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:56:09,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:56:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:09,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:56:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:09,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:56:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:09,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:56:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:09,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:56:09,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:09,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:56:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:09,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:56:09,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:09,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:56:09,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:09,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:56:09,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:09,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 02:56:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:09,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 02:56:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:09,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 02:56:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:09,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 02:56:09,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:09,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 02:56:09,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:09,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 02:56:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:09,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 02:56:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:09,583 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:56:09,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:56:09,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116645081] [2024-10-14 02:56:09,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116645081] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:56:09,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:56:09,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 02:56:09,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561742246] [2024-10-14 02:56:09,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:56:09,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 02:56:09,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:56:09,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 02:56:09,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:56:09,585 INFO L87 Difference]: Start difference. First operand 93842 states and 158698 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-14 02:56:13,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:56:13,490 INFO L93 Difference]: Finished difference Result 94223 states and 162540 transitions. [2024-10-14 02:56:13,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 02:56:13,492 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 137 [2024-10-14 02:56:13,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:56:13,792 INFO L225 Difference]: With dead ends: 94223 [2024-10-14 02:56:13,792 INFO L226 Difference]: Without dead ends: 94105 [2024-10-14 02:56:13,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=184, Invalid=466, Unknown=0, NotChecked=0, Total=650 [2024-10-14 02:56:13,828 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 1666 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 2432 mSolverCounterSat, 357 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1680 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 2789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 357 IncrementalHoareTripleChecker+Valid, 2432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 02:56:13,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1680 Valid, 948 Invalid, 2789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [357 Valid, 2432 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 02:56:13,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94105 states. [2024-10-14 02:56:16,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94105 to 93962. [2024-10-14 02:56:16,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93962 states, 78599 states have (on average 1.6033155638112444) internal successors, (126019), 78604 states have internal predecessors, (126019), 15328 states have call successors, (15328), 28 states have call predecessors, (15328), 34 states have return successors, (17521), 15329 states have call predecessors, (17521), 15326 states have call successors, (17521) [2024-10-14 02:56:17,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93962 states to 93962 states and 158868 transitions. [2024-10-14 02:56:17,156 INFO L78 Accepts]: Start accepts. Automaton has 93962 states and 158868 transitions. Word has length 137 [2024-10-14 02:56:17,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:56:17,157 INFO L471 AbstractCegarLoop]: Abstraction has 93962 states and 158868 transitions. [2024-10-14 02:56:17,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-14 02:56:17,157 INFO L276 IsEmpty]: Start isEmpty. Operand 93962 states and 158868 transitions. [2024-10-14 02:56:17,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-14 02:56:17,207 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:56:17,208 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:56:17,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 02:56:17,208 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:56:17,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:56:17,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1923924244, now seen corresponding path program 1 times [2024-10-14 02:56:17,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:56:17,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990470528] [2024-10-14 02:56:17,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:56:17,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:56:17,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:17,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:56:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:17,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:56:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:17,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:56:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:17,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:56:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:17,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:56:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:17,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:56:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:17,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:56:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:17,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:56:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:17,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 02:56:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:17,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 02:56:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:17,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 02:56:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:17,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 02:56:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:17,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 02:56:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:17,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 02:56:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:17,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-14 02:56:17,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:17,510 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:56:17,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:56:17,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990470528] [2024-10-14 02:56:17,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990470528] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:56:17,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:56:17,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-14 02:56:17,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534635232] [2024-10-14 02:56:17,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:56:17,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 02:56:17,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:56:17,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 02:56:17,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2024-10-14 02:56:17,511 INFO L87 Difference]: Start difference. First operand 93962 states and 158868 transitions. Second operand has 16 states, 14 states have (on average 6.642857142857143) internal successors, (93), 11 states have internal predecessors, (93), 8 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) [2024-10-14 02:56:22,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:56:22,422 INFO L93 Difference]: Finished difference Result 94497 states and 162943 transitions. [2024-10-14 02:56:22,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-14 02:56:22,422 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 6.642857142857143) internal successors, (93), 11 states have internal predecessors, (93), 8 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) Word has length 138 [2024-10-14 02:56:22,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:56:22,688 INFO L225 Difference]: With dead ends: 94497 [2024-10-14 02:56:22,688 INFO L226 Difference]: Without dead ends: 94193 [2024-10-14 02:56:22,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=366, Invalid=1704, Unknown=0, NotChecked=0, Total=2070 [2024-10-14 02:56:22,729 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 1242 mSDsluCounter, 1703 mSDsCounter, 0 mSdLazyCounter, 5241 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1242 SdHoareTripleChecker+Valid, 1864 SdHoareTripleChecker+Invalid, 5580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 5241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-14 02:56:22,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1242 Valid, 1864 Invalid, 5580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 5241 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-14 02:56:22,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94193 states. [2024-10-14 02:56:25,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94193 to 94015. [2024-10-14 02:56:25,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94015 states, 78640 states have (on average 1.6031917599186165) internal successors, (126075), 78647 states have internal predecessors, (126075), 15339 states have call successors, (15339), 29 states have call predecessors, (15339), 35 states have return successors, (17532), 15338 states have call predecessors, (17532), 15337 states have call successors, (17532) [2024-10-14 02:56:25,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94015 states to 94015 states and 158946 transitions. [2024-10-14 02:56:25,903 INFO L78 Accepts]: Start accepts. Automaton has 94015 states and 158946 transitions. Word has length 138 [2024-10-14 02:56:25,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:56:25,904 INFO L471 AbstractCegarLoop]: Abstraction has 94015 states and 158946 transitions. [2024-10-14 02:56:25,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 6.642857142857143) internal successors, (93), 11 states have internal predecessors, (93), 8 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) [2024-10-14 02:56:25,904 INFO L276 IsEmpty]: Start isEmpty. Operand 94015 states and 158946 transitions. [2024-10-14 02:56:26,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 02:56:26,017 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:56:26,017 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:56:26,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 02:56:26,017 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:56:26,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:56:26,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1737974255, now seen corresponding path program 1 times [2024-10-14 02:56:26,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:56:26,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101372192] [2024-10-14 02:56:26,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:56:26,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:56:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:26,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:56:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:26,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:56:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:26,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:56:26,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:26,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:56:26,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:26,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:56:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:26,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:56:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:26,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:56:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:26,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:56:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:26,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 02:56:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:26,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 02:56:26,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:26,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 02:56:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:26,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 02:56:26,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:26,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 02:56:26,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:26,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-14 02:56:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:26,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 02:56:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:26,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 02:56:26,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:26,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 02:56:26,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:26,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-14 02:56:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:26,168 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-14 02:56:26,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:56:26,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101372192] [2024-10-14 02:56:26,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101372192] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:56:26,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:56:26,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 02:56:26,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199050993] [2024-10-14 02:56:26,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:56:26,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 02:56:26,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:56:26,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 02:56:26,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:56:26,170 INFO L87 Difference]: Start difference. First operand 94015 states and 158946 transitions. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-14 02:56:30,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:56:30,161 INFO L93 Difference]: Finished difference Result 94909 states and 163550 transitions. [2024-10-14 02:56:30,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 02:56:30,161 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 162 [2024-10-14 02:56:30,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:56:30,470 INFO L225 Difference]: With dead ends: 94909 [2024-10-14 02:56:30,470 INFO L226 Difference]: Without dead ends: 94645 [2024-10-14 02:56:30,509 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=184, Invalid=466, Unknown=0, NotChecked=0, Total=650 [2024-10-14 02:56:30,510 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 1312 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 2979 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 3262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 2979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 02:56:30,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 953 Invalid, 3262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 2979 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 02:56:30,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94645 states. [2024-10-14 02:56:33,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94645 to 94304. [2024-10-14 02:56:33,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94304 states, 78866 states have (on average 1.6027692541779728) internal successors, (126404), 78876 states have internal predecessors, (126404), 15376 states have call successors, (15376), 49 states have call predecessors, (15376), 61 states have return successors, (17575), 15378 states have call predecessors, (17575), 15372 states have call successors, (17575) [2024-10-14 02:56:34,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94304 states to 94304 states and 159355 transitions. [2024-10-14 02:56:34,046 INFO L78 Accepts]: Start accepts. Automaton has 94304 states and 159355 transitions. Word has length 162 [2024-10-14 02:56:34,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:56:34,047 INFO L471 AbstractCegarLoop]: Abstraction has 94304 states and 159355 transitions. [2024-10-14 02:56:34,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-14 02:56:34,047 INFO L276 IsEmpty]: Start isEmpty. Operand 94304 states and 159355 transitions. [2024-10-14 02:56:34,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-10-14 02:56:34,254 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:56:34,254 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:56:34,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 02:56:34,255 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:56:34,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:56:34,256 INFO L85 PathProgramCache]: Analyzing trace with hash -342462847, now seen corresponding path program 1 times [2024-10-14 02:56:34,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:56:34,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852044302] [2024-10-14 02:56:34,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:56:34,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:56:34,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:34,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:56:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:34,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:56:34,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:34,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:56:34,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:34,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:56:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:34,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:56:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:34,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:56:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:34,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:56:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:34,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:56:34,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:34,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 02:56:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:34,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 02:56:34,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:34,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 02:56:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:34,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 02:56:34,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:34,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 02:56:34,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:34,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 02:56:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:34,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-14 02:56:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:34,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 02:56:34,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:34,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 02:56:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:34,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-14 02:56:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:56:34,499 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-14 02:56:34,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:56:34,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852044302] [2024-10-14 02:56:34,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852044302] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:56:34,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:56:34,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-14 02:56:34,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315206285] [2024-10-14 02:56:34,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:56:34,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 02:56:34,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:56:34,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 02:56:34,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2024-10-14 02:56:34,501 INFO L87 Difference]: Start difference. First operand 94304 states and 159355 transitions. Second operand has 15 states, 14 states have (on average 7.5) internal successors, (105), 10 states have internal predecessors, (105), 7 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18)