./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec27_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/product-lines/email_spec27_product24.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 f1a760a25f6e6d96f820367881f3fbbc32febc8ce03434205938078db6a21524 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 01:53:58,662 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 01:53:58,740 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 01:53:58,745 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 01:53:58,746 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 01:53:58,786 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 01:53:58,787 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 01:53:58,788 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 01:53:58,789 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 01:53:58,790 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 01:53:58,790 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 01:53:58,791 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 01:53:58,791 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 01:53:58,792 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 01:53:58,793 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 01:53:58,793 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 01:53:58,793 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 01:53:58,794 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 01:53:58,794 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 01:53:58,794 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 01:53:58,795 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 01:53:58,795 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 01:53:58,796 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 01:53:58,796 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 01:53:58,796 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 01:53:58,797 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 01:53:58,797 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 01:53:58,797 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 01:53:58,798 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 01:53:58,798 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 01:53:58,798 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 01:53:58,798 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 01:53:58,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:53:58,799 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 01:53:58,799 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 01:53:58,800 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 01:53:58,800 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 01:53:58,800 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 01:53:58,801 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 01:53:58,801 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 01:53:58,801 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 01:53:58,802 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 01:53:58,802 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1a760a25f6e6d96f820367881f3fbbc32febc8ce03434205938078db6a21524 [2024-11-22 01:53:59,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 01:53:59,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 01:53:59,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 01:53:59,108 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 01:53:59,109 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 01:53:59,110 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec27_product24.cil.c [2024-11-22 01:54:00,670 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 01:54:00,978 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 01:54:00,980 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_product24.cil.c [2024-11-22 01:54:01,002 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f08fbba1/fdfaab12a01549c5aede09de6e504ba9/FLAG2122925b2 [2024-11-22 01:54:01,016 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f08fbba1/fdfaab12a01549c5aede09de6e504ba9 [2024-11-22 01:54:01,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 01:54:01,019 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 01:54:01,022 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 01:54:01,022 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 01:54:01,028 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 01:54:01,028 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:54:01" (1/1) ... [2024-11-22 01:54:01,029 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@672f687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:01, skipping insertion in model container [2024-11-22 01:54:01,029 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:54:01" (1/1) ... [2024-11-22 01:54:01,111 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 01:54:01,769 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_product24.cil.c[62587,62600] [2024-11-22 01:54:01,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:54:01,796 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 01:54:01,805 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2024-11-22 01:54:01,807 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [167] [2024-11-22 01:54:01,807 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [571] [2024-11-22 01:54:01,808 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [605] [2024-11-22 01:54:01,808 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [622] [2024-11-22 01:54:01,808 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1701] [2024-11-22 01:54:01,808 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2026] [2024-11-22 01:54:01,808 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2255] [2024-11-22 01:54:01,809 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2543] [2024-11-22 01:54:01,810 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2909] [2024-11-22 01:54:01,810 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2918] [2024-11-22 01:54:01,906 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_product24.cil.c[62587,62600] [2024-11-22 01:54:01,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:54:01,949 INFO L204 MainTranslator]: Completed translation [2024-11-22 01:54:01,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:01 WrapperNode [2024-11-22 01:54:01,950 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 01:54:01,952 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 01:54:01,952 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 01:54:01,952 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 01:54:01,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:01" (1/1) ... [2024-11-22 01:54:01,990 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:01" (1/1) ... [2024-11-22 01:54:02,054 INFO L138 Inliner]: procedures = 130, calls = 194, calls flagged for inlining = 62, calls inlined = 57, statements flattened = 1009 [2024-11-22 01:54:02,055 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 01:54:02,056 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 01:54:02,056 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 01:54:02,056 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 01:54:02,073 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:01" (1/1) ... [2024-11-22 01:54:02,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:01" (1/1) ... [2024-11-22 01:54:02,080 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:01" (1/1) ... [2024-11-22 01:54:02,122 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-22 01:54:02,125 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:01" (1/1) ... [2024-11-22 01:54:02,126 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:01" (1/1) ... [2024-11-22 01:54:02,150 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:01" (1/1) ... [2024-11-22 01:54:02,167 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:01" (1/1) ... [2024-11-22 01:54:02,176 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:01" (1/1) ... [2024-11-22 01:54:02,185 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:01" (1/1) ... [2024-11-22 01:54:02,201 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 01:54:02,202 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 01:54:02,202 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 01:54:02,203 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 01:54:02,205 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:01" (1/1) ... [2024-11-22 01:54:02,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:54:02,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:54:02,246 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 01:54:02,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 01:54:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-22 01:54:02,301 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-22 01:54:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-22 01:54:02,301 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-22 01:54:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-22 01:54:02,301 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-22 01:54:02,302 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-22 01:54:02,302 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-22 01:54:02,302 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-22 01:54:02,302 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-22 01:54:02,303 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-22 01:54:02,303 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-22 01:54:02,303 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-22 01:54:02,303 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-22 01:54:02,303 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-22 01:54:02,303 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-22 01:54:02,303 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-22 01:54:02,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-22 01:54:02,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 01:54:02,304 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-22 01:54:02,305 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-22 01:54:02,305 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-22 01:54:02,305 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-22 01:54:02,305 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-22 01:54:02,306 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-22 01:54:02,306 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-22 01:54:02,306 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-22 01:54:02,308 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2024-11-22 01:54:02,308 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2024-11-22 01:54:02,309 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-22 01:54:02,309 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-22 01:54:02,309 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-22 01:54:02,309 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-22 01:54:02,309 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-22 01:54:02,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-22 01:54:02,309 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-22 01:54:02,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-22 01:54:02,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 01:54:02,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 01:54:02,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 01:54:02,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 01:54:02,310 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-22 01:54:02,310 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-22 01:54:02,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 01:54:02,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 01:54:02,513 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 01:54:02,516 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 01:54:03,446 INFO L? ?]: Removed 454 outVars from TransFormulas that were not future-live. [2024-11-22 01:54:03,446 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 01:54:03,465 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 01:54:03,465 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 01:54:03,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:54:03 BoogieIcfgContainer [2024-11-22 01:54:03,466 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 01:54:03,469 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 01:54:03,470 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 01:54:03,474 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 01:54:03,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:54:01" (1/3) ... [2024-11-22 01:54:03,475 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b2e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:54:03, skipping insertion in model container [2024-11-22 01:54:03,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:01" (2/3) ... [2024-11-22 01:54:03,475 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b2e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:54:03, skipping insertion in model container [2024-11-22 01:54:03,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:54:03" (3/3) ... [2024-11-22 01:54:03,477 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product24.cil.c [2024-11-22 01:54:03,495 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 01:54:03,495 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 01:54:03,582 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 01:54:03,591 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;@3270d580, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 01:54:03,591 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 01:54:03,599 INFO L276 IsEmpty]: Start isEmpty. Operand has 333 states, 262 states have (on average 1.5229007633587786) internal successors, (399), 264 states have internal predecessors, (399), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-22 01:54:03,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-22 01:54:03,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:03,618 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, 1, 1, 1, 1, 1, 1] [2024-11-22 01:54:03,618 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:03,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:03,623 INFO L85 PathProgramCache]: Analyzing trace with hash -384259556, now seen corresponding path program 1 times [2024-11-22 01:54:03,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:03,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311010968] [2024-11-22 01:54:03,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:03,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:04,477 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-22 01:54:04,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:04,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311010968] [2024-11-22 01:54:04,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311010968] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:54:04,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239896156] [2024-11-22 01:54:04,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:04,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:54:04,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:54:04,483 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:54:04,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 01:54:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:04,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 01:54:04,878 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:54:04,906 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 01:54:04,907 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:54:04,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239896156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:04,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:54:04,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2024-11-22 01:54:04,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023460453] [2024-11-22 01:54:04,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:04,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 01:54:04,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:04,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 01:54:04,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:54:04,952 INFO L87 Difference]: Start difference. First operand has 333 states, 262 states have (on average 1.5229007633587786) internal successors, (399), 264 states have internal predecessors, (399), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 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) [2024-11-22 01:54:05,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:05,034 INFO L93 Difference]: Finished difference Result 507 states and 744 transitions. [2024-11-22 01:54:05,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 01:54:05,038 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 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 108 [2024-11-22 01:54:05,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:05,055 INFO L225 Difference]: With dead ends: 507 [2024-11-22 01:54:05,055 INFO L226 Difference]: Without dead ends: 326 [2024-11-22 01:54:05,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:54:05,066 INFO L432 NwaCegarLoop]: 495 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:05,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:54:05,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-22 01:54:05,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2024-11-22 01:54:05,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 256 states have (on average 1.515625) internal successors, (388), 257 states have internal predecessors, (388), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-22 01:54:05,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 487 transitions. [2024-11-22 01:54:05,134 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 487 transitions. Word has length 108 [2024-11-22 01:54:05,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:05,135 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 487 transitions. [2024-11-22 01:54:05,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 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) [2024-11-22 01:54:05,136 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 487 transitions. [2024-11-22 01:54:05,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-22 01:54:05,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:05,142 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:54:05,154 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 01:54:05,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 01:54:05,348 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:05,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:05,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1691897336, now seen corresponding path program 1 times [2024-11-22 01:54:05,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:05,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299300407] [2024-11-22 01:54:05,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:05,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:05,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:05,653 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-22 01:54:05,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:05,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299300407] [2024-11-22 01:54:05,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299300407] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:54:05,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56746345] [2024-11-22 01:54:05,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:05,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:54:05,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:54:05,660 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:54:05,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 01:54:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:06,036 INFO L255 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 01:54:06,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:54:06,080 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 01:54:06,080 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:54:06,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56746345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:06,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:54:06,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 01:54:06,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404928654] [2024-11-22 01:54:06,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:06,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:54:06,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:06,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:54:06,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:54:06,087 INFO L87 Difference]: Start difference. First operand 326 states and 487 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) [2024-11-22 01:54:06,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:06,144 INFO L93 Difference]: Finished difference Result 497 states and 725 transitions. [2024-11-22 01:54:06,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:54:06,144 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 [2024-11-22 01:54:06,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:06,148 INFO L225 Difference]: With dead ends: 497 [2024-11-22 01:54:06,148 INFO L226 Difference]: Without dead ends: 329 [2024-11-22 01:54:06,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:54:06,154 INFO L432 NwaCegarLoop]: 485 mSDtfsCounter, 1 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:06,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 968 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:54:06,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-11-22 01:54:06,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 328. [2024-11-22 01:54:06,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 258 states have (on average 1.5116279069767442) internal successors, (390), 259 states have internal predecessors, (390), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-22 01:54:06,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 489 transitions. [2024-11-22 01:54:06,175 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 489 transitions. Word has length 109 [2024-11-22 01:54:06,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:06,176 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 489 transitions. [2024-11-22 01:54:06,176 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) [2024-11-22 01:54:06,176 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 489 transitions. [2024-11-22 01:54:06,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-22 01:54:06,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:06,179 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:54:06,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 01:54:06,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-22 01:54:06,384 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:06,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:06,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1854400719, now seen corresponding path program 1 times [2024-11-22 01:54:06,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:06,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895651813] [2024-11-22 01:54:06,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:06,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:06,579 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 01:54:06,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:06,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895651813] [2024-11-22 01:54:06,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895651813] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:54:06,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11125954] [2024-11-22 01:54:06,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:06,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:54:06,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:54:06,583 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:54:06,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 01:54:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:06,914 INFO L255 TraceCheckSpWp]: Trace formula consists of 1062 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:54:06,922 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:54:06,943 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 01:54:06,944 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:54:06,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11125954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:06,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:54:06,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 01:54:06,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304186463] [2024-11-22 01:54:06,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:06,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:54:06,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:06,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:54:06,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:54:06,947 INFO L87 Difference]: Start difference. First operand 328 states and 489 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-11-22 01:54:06,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:06,977 INFO L93 Difference]: Finished difference Result 691 states and 1045 transitions. [2024-11-22 01:54:06,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:54:06,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 118 [2024-11-22 01:54:06,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:06,982 INFO L225 Difference]: With dead ends: 691 [2024-11-22 01:54:06,985 INFO L226 Difference]: Without dead ends: 390 [2024-11-22 01:54:06,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:54:06,987 INFO L432 NwaCegarLoop]: 501 mSDtfsCounter, 115 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:06,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 942 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:54:06,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-11-22 01:54:07,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 382. [2024-11-22 01:54:07,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 301 states have (on average 1.5282392026578073) internal successors, (460), 302 states have internal predecessors, (460), 61 states have call successors, (61), 19 states have call predecessors, (61), 19 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-22 01:54:07,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 581 transitions. [2024-11-22 01:54:07,014 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 581 transitions. Word has length 118 [2024-11-22 01:54:07,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:07,015 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 581 transitions. [2024-11-22 01:54:07,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-11-22 01:54:07,015 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 581 transitions. [2024-11-22 01:54:07,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-22 01:54:07,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:07,033 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:54:07,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 01:54:07,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:54:07,234 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:07,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:07,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1507825685, now seen corresponding path program 1 times [2024-11-22 01:54:07,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:07,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954423378] [2024-11-22 01:54:07,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:07,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:07,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:07,420 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 01:54:07,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:07,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954423378] [2024-11-22 01:54:07,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954423378] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:54:07,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808145470] [2024-11-22 01:54:07,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:07,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:54:07,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:54:07,425 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:54:07,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 01:54:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:07,738 INFO L255 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 01:54:07,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:54:07,805 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 01:54:07,805 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:54:07,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808145470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:07,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:54:07,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-22 01:54:07,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759432704] [2024-11-22 01:54:07,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:07,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:54:07,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:07,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:54:07,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:54:07,808 INFO L87 Difference]: Start difference. First operand 382 states and 581 transitions. Second operand has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 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) [2024-11-22 01:54:07,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:07,889 INFO L93 Difference]: Finished difference Result 755 states and 1152 transitions. [2024-11-22 01:54:07,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:54:07,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 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 119 [2024-11-22 01:54:07,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:07,896 INFO L225 Difference]: With dead ends: 755 [2024-11-22 01:54:07,897 INFO L226 Difference]: Without dead ends: 384 [2024-11-22 01:54:07,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:54:07,901 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 2 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1905 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:07,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1905 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:54:07,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-22 01:54:07,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2024-11-22 01:54:07,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 302 states have (on average 1.5264900662251655) internal successors, (461), 304 states have internal predecessors, (461), 61 states have call successors, (61), 19 states have call predecessors, (61), 20 states have return successors, (62), 60 states have call predecessors, (62), 60 states have call successors, (62) [2024-11-22 01:54:07,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 584 transitions. [2024-11-22 01:54:07,931 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 584 transitions. Word has length 119 [2024-11-22 01:54:07,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:07,931 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 584 transitions. [2024-11-22 01:54:07,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 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) [2024-11-22 01:54:07,932 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 584 transitions. [2024-11-22 01:54:07,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-22 01:54:07,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:07,934 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:54:07,946 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 01:54:08,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:54:08,139 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:08,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:08,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1264807159, now seen corresponding path program 1 times [2024-11-22 01:54:08,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:08,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129570863] [2024-11-22 01:54:08,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:08,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:08,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:08,337 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:54:08,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:08,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129570863] [2024-11-22 01:54:08,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129570863] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:54:08,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265298160] [2024-11-22 01:54:08,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:08,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:54:08,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:54:08,341 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:54:08,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 01:54:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:08,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 1068 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 01:54:08,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:54:08,711 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 01:54:08,712 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:54:08,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265298160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:08,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:54:08,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-22 01:54:08,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939692802] [2024-11-22 01:54:08,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:08,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:54:08,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:08,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:54:08,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:54:08,715 INFO L87 Difference]: Start difference. First operand 384 states and 584 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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) [2024-11-22 01:54:08,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:08,792 INFO L93 Difference]: Finished difference Result 757 states and 1157 transitions. [2024-11-22 01:54:08,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:54:08,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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 120 [2024-11-22 01:54:08,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:08,798 INFO L225 Difference]: With dead ends: 757 [2024-11-22 01:54:08,799 INFO L226 Difference]: Without dead ends: 386 [2024-11-22 01:54:08,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:54:08,801 INFO L432 NwaCegarLoop]: 477 mSDtfsCounter, 2 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1891 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:08,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1891 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:54:08,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-11-22 01:54:08,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2024-11-22 01:54:08,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 303 states have (on average 1.5247524752475248) internal successors, (462), 306 states have internal predecessors, (462), 61 states have call successors, (61), 19 states have call predecessors, (61), 21 states have return successors, (67), 60 states have call predecessors, (67), 60 states have call successors, (67) [2024-11-22 01:54:08,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 590 transitions. [2024-11-22 01:54:08,823 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 590 transitions. Word has length 120 [2024-11-22 01:54:08,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:08,824 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 590 transitions. [2024-11-22 01:54:08,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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) [2024-11-22 01:54:08,824 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 590 transitions. [2024-11-22 01:54:08,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-22 01:54:08,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:08,827 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, 1, 1, 1, 1, 1] [2024-11-22 01:54:08,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-22 01:54:09,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:54:09,028 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:09,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:09,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1321892174, now seen corresponding path program 1 times [2024-11-22 01:54:09,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:09,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952570894] [2024-11-22 01:54:09,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:09,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:09,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:09,231 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 01:54:09,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:09,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952570894] [2024-11-22 01:54:09,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952570894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:09,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:54:09,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:54:09,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708102942] [2024-11-22 01:54:09,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:09,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:54:09,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:09,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:54:09,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:54:09,234 INFO L87 Difference]: Start difference. First operand 386 states and 590 transitions. Second operand has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:54:09,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:09,280 INFO L93 Difference]: Finished difference Result 749 states and 1148 transitions. [2024-11-22 01:54:09,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:54:09,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 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 121 [2024-11-22 01:54:09,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:09,287 INFO L225 Difference]: With dead ends: 749 [2024-11-22 01:54:09,287 INFO L226 Difference]: Without dead ends: 386 [2024-11-22 01:54:09,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:54:09,289 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 2 mSDsluCounter, 1429 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1909 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:09,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1909 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:54:09,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-11-22 01:54:09,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2024-11-22 01:54:09,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 303 states have (on average 1.5247524752475248) internal successors, (462), 306 states have internal predecessors, (462), 61 states have call successors, (61), 19 states have call predecessors, (61), 21 states have return successors, (66), 60 states have call predecessors, (66), 60 states have call successors, (66) [2024-11-22 01:54:09,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 589 transitions. [2024-11-22 01:54:09,313 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 589 transitions. Word has length 121 [2024-11-22 01:54:09,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:09,313 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 589 transitions. [2024-11-22 01:54:09,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:54:09,313 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 589 transitions. [2024-11-22 01:54:09,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-22 01:54:09,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:09,319 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:54:09,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 01:54:09,319 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:09,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:09,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1252036956, now seen corresponding path program 2 times [2024-11-22 01:54:09,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:09,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784529813] [2024-11-22 01:54:09,324 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 01:54:09,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:09,357 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 01:54:09,357 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 01:54:09,438 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-22 01:54:09,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:09,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784529813] [2024-11-22 01:54:09,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784529813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:09,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:54:09,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:54:09,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477020184] [2024-11-22 01:54:09,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:09,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:54:09,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:09,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:54:09,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:54:09,441 INFO L87 Difference]: Start difference. First operand 386 states and 589 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:54:09,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:09,468 INFO L93 Difference]: Finished difference Result 546 states and 813 transitions. [2024-11-22 01:54:09,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:54:09,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (16), 1 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 122 [2024-11-22 01:54:09,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:09,472 INFO L225 Difference]: With dead ends: 546 [2024-11-22 01:54:09,473 INFO L226 Difference]: Without dead ends: 386 [2024-11-22 01:54:09,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:54:09,475 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 0 mSDsluCounter, 1445 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1929 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:09,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1929 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:54:09,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-11-22 01:54:09,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2024-11-22 01:54:09,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 303 states have (on average 1.5214521452145215) internal successors, (461), 306 states have internal predecessors, (461), 61 states have call successors, (61), 19 states have call predecessors, (61), 21 states have return successors, (66), 60 states have call predecessors, (66), 60 states have call successors, (66) [2024-11-22 01:54:09,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 588 transitions. [2024-11-22 01:54:09,493 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 588 transitions. Word has length 122 [2024-11-22 01:54:09,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:09,494 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 588 transitions. [2024-11-22 01:54:09,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:54:09,494 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 588 transitions. [2024-11-22 01:54:09,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-22 01:54:09,497 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:09,497 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:54:09,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 01:54:09,497 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:09,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:09,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1434549360, now seen corresponding path program 1 times [2024-11-22 01:54:09,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:09,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342826764] [2024-11-22 01:54:09,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:09,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:09,658 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 01:54:09,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:09,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342826764] [2024-11-22 01:54:09,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342826764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:09,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:54:09,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:54:09,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959913133] [2024-11-22 01:54:09,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:09,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:54:09,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:09,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:54:09,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:54:09,661 INFO L87 Difference]: Start difference. First operand 386 states and 588 transitions. Second operand has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-22 01:54:09,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:09,702 INFO L93 Difference]: Finished difference Result 751 states and 1149 transitions. [2024-11-22 01:54:09,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:54:09,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 129 [2024-11-22 01:54:09,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:09,706 INFO L225 Difference]: With dead ends: 751 [2024-11-22 01:54:09,706 INFO L226 Difference]: Without dead ends: 388 [2024-11-22 01:54:09,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:54:09,708 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 1 mSDsluCounter, 1428 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1908 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:09,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1908 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:54:09,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-22 01:54:09,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2024-11-22 01:54:09,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 304 states have (on average 1.519736842105263) internal successors, (462), 308 states have internal predecessors, (462), 61 states have call successors, (61), 19 states have call predecessors, (61), 22 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2024-11-22 01:54:09,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 591 transitions. [2024-11-22 01:54:09,724 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 591 transitions. Word has length 129 [2024-11-22 01:54:09,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:09,724 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 591 transitions. [2024-11-22 01:54:09,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-22 01:54:09,725 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 591 transitions. [2024-11-22 01:54:09,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-22 01:54:09,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:09,727 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:54:09,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 01:54:09,728 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:09,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:09,728 INFO L85 PathProgramCache]: Analyzing trace with hash -646822315, now seen corresponding path program 1 times [2024-11-22 01:54:09,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:09,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060868063] [2024-11-22 01:54:09,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:09,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:09,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:09,885 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:54:09,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:09,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060868063] [2024-11-22 01:54:09,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060868063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:09,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:54:09,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 01:54:09,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980526861] [2024-11-22 01:54:09,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:09,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:54:09,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:09,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:54:09,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:54:09,888 INFO L87 Difference]: Start difference. First operand 388 states and 591 transitions. Second operand has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-22 01:54:10,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:10,016 INFO L93 Difference]: Finished difference Result 753 states and 1148 transitions. [2024-11-22 01:54:10,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 01:54:10,017 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 130 [2024-11-22 01:54:10,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:10,021 INFO L225 Difference]: With dead ends: 753 [2024-11-22 01:54:10,021 INFO L226 Difference]: Without dead ends: 390 [2024-11-22 01:54:10,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:54:10,026 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 7 mSDsluCounter, 2791 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3261 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:10,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3261 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:54:10,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-11-22 01:54:10,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 390. [2024-11-22 01:54:10,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 306 states have (on average 1.5163398692810457) internal successors, (464), 309 states have internal predecessors, (464), 61 states have call successors, (61), 20 states have call predecessors, (61), 22 states have return successors, (67), 60 states have call predecessors, (67), 60 states have call successors, (67) [2024-11-22 01:54:10,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 592 transitions. [2024-11-22 01:54:10,049 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 592 transitions. Word has length 130 [2024-11-22 01:54:10,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:10,049 INFO L471 AbstractCegarLoop]: Abstraction has 390 states and 592 transitions. [2024-11-22 01:54:10,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-22 01:54:10,050 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 592 transitions. [2024-11-22 01:54:10,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-22 01:54:10,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:10,053 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:54:10,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 01:54:10,054 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:10,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:10,054 INFO L85 PathProgramCache]: Analyzing trace with hash 926809906, now seen corresponding path program 2 times [2024-11-22 01:54:10,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:10,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650474252] [2024-11-22 01:54:10,054 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 01:54:10,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:10,091 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 01:54:10,091 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 01:54:10,217 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-22 01:54:10,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:10,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650474252] [2024-11-22 01:54:10,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650474252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:10,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:54:10,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 01:54:10,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461748716] [2024-11-22 01:54:10,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:10,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:54:10,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:10,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:54:10,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:54:10,219 INFO L87 Difference]: Start difference. First operand 390 states and 592 transitions. Second operand has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 7 states have internal predecessors, (88), 4 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-22 01:54:10,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:10,309 INFO L93 Difference]: Finished difference Result 753 states and 1152 transitions. [2024-11-22 01:54:10,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:54:10,310 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 7 states have internal predecessors, (88), 4 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 131 [2024-11-22 01:54:10,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:10,313 INFO L225 Difference]: With dead ends: 753 [2024-11-22 01:54:10,313 INFO L226 Difference]: Without dead ends: 392 [2024-11-22 01:54:10,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:54:10,317 INFO L432 NwaCegarLoop]: 478 mSDtfsCounter, 2 mSDsluCounter, 2362 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2840 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:10,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2840 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:54:10,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-22 01:54:10,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2024-11-22 01:54:10,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 307 states have (on average 1.514657980456026) internal successors, (465), 311 states have internal predecessors, (465), 61 states have call successors, (61), 20 states have call predecessors, (61), 23 states have return successors, (72), 60 states have call predecessors, (72), 60 states have call successors, (72) [2024-11-22 01:54:10,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 598 transitions. [2024-11-22 01:54:10,332 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 598 transitions. Word has length 131 [2024-11-22 01:54:10,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:10,332 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 598 transitions. [2024-11-22 01:54:10,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 7 states have internal predecessors, (88), 4 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-22 01:54:10,332 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 598 transitions. [2024-11-22 01:54:10,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-22 01:54:10,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:10,334 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:54:10,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 01:54:10,335 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:10,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:10,336 INFO L85 PathProgramCache]: Analyzing trace with hash 2125517904, now seen corresponding path program 1 times [2024-11-22 01:54:10,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:10,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125986468] [2024-11-22 01:54:10,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:10,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:10,508 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-22 01:54:10,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:10,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125986468] [2024-11-22 01:54:10,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125986468] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:54:10,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052200116] [2024-11-22 01:54:10,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:10,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:54:10,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:54:10,511 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:54:10,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 01:54:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:10,817 INFO L255 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:54:10,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:54:10,868 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:54:10,869 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 01:54:10,981 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:54:10,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052200116] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 01:54:10,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 01:54:10,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 11 [2024-11-22 01:54:10,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837378137] [2024-11-22 01:54:10,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 01:54:10,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 01:54:10,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:10,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 01:54:10,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:54:10,984 INFO L87 Difference]: Start difference. First operand 392 states and 598 transitions. Second operand has 11 states, 10 states have (on average 14.6) internal successors, (146), 11 states have internal predecessors, (146), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-22 01:54:11,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:11,624 INFO L93 Difference]: Finished difference Result 1132 states and 1804 transitions. [2024-11-22 01:54:11,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 01:54:11,625 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.6) internal successors, (146), 11 states have internal predecessors, (146), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 132 [2024-11-22 01:54:11,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:11,630 INFO L225 Difference]: With dead ends: 1132 [2024-11-22 01:54:11,631 INFO L226 Difference]: Without dead ends: 771 [2024-11-22 01:54:11,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2024-11-22 01:54:11,633 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 1174 mSDsluCounter, 2942 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1174 SdHoareTripleChecker+Valid, 3414 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:11,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1174 Valid, 3414 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 01:54:11,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2024-11-22 01:54:11,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 745. [2024-11-22 01:54:11,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 596 states have (on average 1.570469798657718) internal successors, (936), 600 states have internal predecessors, (936), 125 states have call successors, (125), 20 states have call predecessors, (125), 23 states have return successors, (146), 124 states have call predecessors, (146), 124 states have call successors, (146) [2024-11-22 01:54:11,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1207 transitions. [2024-11-22 01:54:11,667 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1207 transitions. Word has length 132 [2024-11-22 01:54:11,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:11,667 INFO L471 AbstractCegarLoop]: Abstraction has 745 states and 1207 transitions. [2024-11-22 01:54:11,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.6) internal successors, (146), 11 states have internal predecessors, (146), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-22 01:54:11,668 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1207 transitions. [2024-11-22 01:54:11,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 01:54:11,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:11,672 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] [2024-11-22 01:54:11,683 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 01:54:11,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:54:11,873 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:11,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:11,874 INFO L85 PathProgramCache]: Analyzing trace with hash -636258299, now seen corresponding path program 1 times [2024-11-22 01:54:11,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:11,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533766267] [2024-11-22 01:54:11,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:11,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:11,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:11,935 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:54:11,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:11,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533766267] [2024-11-22 01:54:11,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533766267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:11,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:54:11,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:54:11,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642183530] [2024-11-22 01:54:11,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:11,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:54:11,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:11,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:54:11,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:54:11,937 INFO L87 Difference]: Start difference. First operand 745 states and 1207 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:54:11,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:11,977 INFO L93 Difference]: Finished difference Result 1743 states and 2870 transitions. [2024-11-22 01:54:11,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:54:11,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 135 [2024-11-22 01:54:11,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:11,984 INFO L225 Difference]: With dead ends: 1743 [2024-11-22 01:54:11,984 INFO L226 Difference]: Without dead ends: 1078 [2024-11-22 01:54:11,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:54:11,988 INFO L432 NwaCegarLoop]: 496 mSDtfsCounter, 112 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:11,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 970 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:54:11,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2024-11-22 01:54:12,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1070. [2024-11-22 01:54:12,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1070 states, 857 states have (on average 1.588098016336056) internal successors, (1361), 861 states have internal predecessors, (1361), 189 states have call successors, (189), 20 states have call predecessors, (189), 23 states have return successors, (220), 188 states have call predecessors, (220), 188 states have call successors, (220) [2024-11-22 01:54:12,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1770 transitions. [2024-11-22 01:54:12,037 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1770 transitions. Word has length 135 [2024-11-22 01:54:12,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:12,037 INFO L471 AbstractCegarLoop]: Abstraction has 1070 states and 1770 transitions. [2024-11-22 01:54:12,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:54:12,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1770 transitions. [2024-11-22 01:54:12,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-22 01:54:12,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:12,044 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] [2024-11-22 01:54:12,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 01:54:12,045 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:12,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:12,045 INFO L85 PathProgramCache]: Analyzing trace with hash 880822860, now seen corresponding path program 1 times [2024-11-22 01:54:12,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:12,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571449775] [2024-11-22 01:54:12,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:12,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:12,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:12,105 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:54:12,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:12,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571449775] [2024-11-22 01:54:12,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571449775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:12,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:54:12,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:54:12,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48794525] [2024-11-22 01:54:12,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:12,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:54:12,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:12,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:54:12,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:54:12,108 INFO L87 Difference]: Start difference. First operand 1070 states and 1770 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:54:12,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:12,162 INFO L93 Difference]: Finished difference Result 2548 states and 4238 transitions. [2024-11-22 01:54:12,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:54:12,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 136 [2024-11-22 01:54:12,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:12,173 INFO L225 Difference]: With dead ends: 2548 [2024-11-22 01:54:12,174 INFO L226 Difference]: Without dead ends: 1611 [2024-11-22 01:54:12,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:54:12,179 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 110 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:12,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 962 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:54:12,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2024-11-22 01:54:12,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1603. [2024-11-22 01:54:12,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1603 states, 1295 states have (on average 1.5961389961389962) internal successors, (2067), 1299 states have internal predecessors, (2067), 284 states have call successors, (284), 20 states have call predecessors, (284), 23 states have return successors, (315), 283 states have call predecessors, (315), 283 states have call successors, (315) [2024-11-22 01:54:12,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1603 states to 1603 states and 2666 transitions. [2024-11-22 01:54:12,281 INFO L78 Accepts]: Start accepts. Automaton has 1603 states and 2666 transitions. Word has length 136 [2024-11-22 01:54:12,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:12,282 INFO L471 AbstractCegarLoop]: Abstraction has 1603 states and 2666 transitions. [2024-11-22 01:54:12,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:54:12,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1603 states and 2666 transitions. [2024-11-22 01:54:12,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-22 01:54:12,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:12,292 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] [2024-11-22 01:54:12,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 01:54:12,292 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:12,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:12,293 INFO L85 PathProgramCache]: Analyzing trace with hash -863206221, now seen corresponding path program 1 times [2024-11-22 01:54:12,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:12,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552083514] [2024-11-22 01:54:12,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:12,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:12,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:12,354 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:54:12,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:12,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552083514] [2024-11-22 01:54:12,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552083514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:12,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:54:12,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:54:12,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7135047] [2024-11-22 01:54:12,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:12,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:54:12,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:12,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:54:12,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:54:12,357 INFO L87 Difference]: Start difference. First operand 1603 states and 2666 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:54:12,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:12,428 INFO L93 Difference]: Finished difference Result 3755 states and 6290 transitions. [2024-11-22 01:54:12,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:54:12,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 137 [2024-11-22 01:54:12,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:12,444 INFO L225 Difference]: With dead ends: 3755 [2024-11-22 01:54:12,444 INFO L226 Difference]: Without dead ends: 2420 [2024-11-22 01:54:12,451 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:54:12,452 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 108 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:12,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 959 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:54:12,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2420 states. [2024-11-22 01:54:12,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2420 to 2412. [2024-11-22 01:54:12,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2412 states, 1981 states have (on average 1.602221100454316) internal successors, (3174), 1985 states have internal predecessors, (3174), 407 states have call successors, (407), 20 states have call predecessors, (407), 23 states have return successors, (454), 406 states have call predecessors, (454), 406 states have call successors, (454) [2024-11-22 01:54:12,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 4035 transitions. [2024-11-22 01:54:12,568 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 4035 transitions. Word has length 137 [2024-11-22 01:54:12,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:12,569 INFO L471 AbstractCegarLoop]: Abstraction has 2412 states and 4035 transitions. [2024-11-22 01:54:12,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:54:12,569 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 4035 transitions. [2024-11-22 01:54:12,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-22 01:54:12,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:12,582 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] [2024-11-22 01:54:12,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 01:54:12,582 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:12,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:12,582 INFO L85 PathProgramCache]: Analyzing trace with hash -680825971, now seen corresponding path program 1 times [2024-11-22 01:54:12,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:12,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830106256] [2024-11-22 01:54:12,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:12,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:12,683 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:54:12,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:12,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830106256] [2024-11-22 01:54:12,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830106256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:12,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:54:12,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:54:12,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966789022] [2024-11-22 01:54:12,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:12,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:54:12,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:12,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:54:12,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:54:12,685 INFO L87 Difference]: Start difference. First operand 2412 states and 4035 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:54:12,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:12,829 INFO L93 Difference]: Finished difference Result 5639 states and 9493 transitions. [2024-11-22 01:54:12,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:54:12,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 138 [2024-11-22 01:54:12,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:12,852 INFO L225 Difference]: With dead ends: 5639 [2024-11-22 01:54:12,853 INFO L226 Difference]: Without dead ends: 3714 [2024-11-22 01:54:12,863 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:54:12,864 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 106 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:12,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 959 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:54:12,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3714 states. [2024-11-22 01:54:13,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3714 to 3706. [2024-11-22 01:54:13,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3706 states, 3096 states have (on average 1.6059431524547803) internal successors, (4972), 3100 states have internal predecessors, (4972), 586 states have call successors, (586), 20 states have call predecessors, (586), 23 states have return successors, (659), 585 states have call predecessors, (659), 585 states have call successors, (659) [2024-11-22 01:54:13,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3706 states to 3706 states and 6217 transitions. [2024-11-22 01:54:13,060 INFO L78 Accepts]: Start accepts. Automaton has 3706 states and 6217 transitions. Word has length 138 [2024-11-22 01:54:13,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:13,061 INFO L471 AbstractCegarLoop]: Abstraction has 3706 states and 6217 transitions. [2024-11-22 01:54:13,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:54:13,061 INFO L276 IsEmpty]: Start isEmpty. Operand 3706 states and 6217 transitions. [2024-11-22 01:54:13,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 01:54:13,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:13,078 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, 1] [2024-11-22 01:54:13,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 01:54:13,078 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:13,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:13,078 INFO L85 PathProgramCache]: Analyzing trace with hash 852700431, now seen corresponding path program 1 times [2024-11-22 01:54:13,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:13,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135371801] [2024-11-22 01:54:13,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:13,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:13,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:13,175 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:54:13,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:13,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135371801] [2024-11-22 01:54:13,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135371801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:13,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:54:13,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:54:13,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303287228] [2024-11-22 01:54:13,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:13,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:54:13,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:13,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:54:13,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:54:13,177 INFO L87 Difference]: Start difference. First operand 3706 states and 6217 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:54:13,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:13,323 INFO L93 Difference]: Finished difference Result 8742 states and 14757 transitions. [2024-11-22 01:54:13,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:54:13,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 139 [2024-11-22 01:54:13,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:13,363 INFO L225 Difference]: With dead ends: 8742 [2024-11-22 01:54:13,364 INFO L226 Difference]: Without dead ends: 5855 [2024-11-22 01:54:13,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:54:13,382 INFO L432 NwaCegarLoop]: 495 mSDtfsCounter, 104 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:13,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 968 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:54:13,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5855 states. [2024-11-22 01:54:13,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5855 to 5847. [2024-11-22 01:54:13,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5847 states, 4861 states have (on average 1.600082287595145) internal successors, (7778), 4865 states have internal predecessors, (7778), 962 states have call successors, (962), 20 states have call predecessors, (962), 23 states have return successors, (1079), 961 states have call predecessors, (1079), 961 states have call successors, (1079) [2024-11-22 01:54:13,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5847 states to 5847 states and 9819 transitions. [2024-11-22 01:54:13,775 INFO L78 Accepts]: Start accepts. Automaton has 5847 states and 9819 transitions. Word has length 139 [2024-11-22 01:54:13,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:13,775 INFO L471 AbstractCegarLoop]: Abstraction has 5847 states and 9819 transitions. [2024-11-22 01:54:13,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:54:13,776 INFO L276 IsEmpty]: Start isEmpty. Operand 5847 states and 9819 transitions. [2024-11-22 01:54:13,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-22 01:54:13,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:13,803 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, 1, 1] [2024-11-22 01:54:13,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 01:54:13,803 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:13,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:13,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1430108977, now seen corresponding path program 1 times [2024-11-22 01:54:13,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:13,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735389419] [2024-11-22 01:54:13,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:13,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:13,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:13,878 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:54:13,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:13,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735389419] [2024-11-22 01:54:13,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735389419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:13,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:54:13,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:54:13,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225849594] [2024-11-22 01:54:13,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:13,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:54:13,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:13,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:54:13,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:54:13,881 INFO L87 Difference]: Start difference. First operand 5847 states and 9819 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:54:14,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:14,158 INFO L93 Difference]: Finished difference Result 14359 states and 24259 transitions. [2024-11-22 01:54:14,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:54:14,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 140 [2024-11-22 01:54:14,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:14,226 INFO L225 Difference]: With dead ends: 14359 [2024-11-22 01:54:14,226 INFO L226 Difference]: Without dead ends: 9733 [2024-11-22 01:54:14,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:54:14,251 INFO L432 NwaCegarLoop]: 486 mSDtfsCounter, 102 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:14,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 964 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:54:14,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9733 states. [2024-11-22 01:54:14,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9733 to 9725. [2024-11-22 01:54:14,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9725 states, 8133 states have (on average 1.5980572974302225) internal successors, (12997), 8137 states have internal predecessors, (12997), 1568 states have call successors, (1568), 20 states have call predecessors, (1568), 23 states have return successors, (1763), 1567 states have call predecessors, (1763), 1567 states have call successors, (1763) [2024-11-22 01:54:14,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9725 states to 9725 states and 16328 transitions. [2024-11-22 01:54:14,893 INFO L78 Accepts]: Start accepts. Automaton has 9725 states and 16328 transitions. Word has length 140 [2024-11-22 01:54:14,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:14,895 INFO L471 AbstractCegarLoop]: Abstraction has 9725 states and 16328 transitions. [2024-11-22 01:54:14,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:54:14,896 INFO L276 IsEmpty]: Start isEmpty. Operand 9725 states and 16328 transitions. [2024-11-22 01:54:14,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-22 01:54:14,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:14,934 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, 1, 1, 1] [2024-11-22 01:54:14,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 01:54:14,935 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:14,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:14,935 INFO L85 PathProgramCache]: Analyzing trace with hash 2074725405, now seen corresponding path program 1 times [2024-11-22 01:54:14,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:14,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465597619] [2024-11-22 01:54:14,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:14,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:14,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:15,010 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:54:15,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:15,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465597619] [2024-11-22 01:54:15,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465597619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:15,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:54:15,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:54:15,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697126462] [2024-11-22 01:54:15,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:15,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:54:15,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:15,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:54:15,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:54:15,014 INFO L87 Difference]: Start difference. First operand 9725 states and 16328 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:54:15,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:15,524 INFO L93 Difference]: Finished difference Result 25068 states and 42259 transitions. [2024-11-22 01:54:15,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:54:15,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 141 [2024-11-22 01:54:15,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:15,625 INFO L225 Difference]: With dead ends: 25068 [2024-11-22 01:54:15,625 INFO L226 Difference]: Without dead ends: 17046 [2024-11-22 01:54:15,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:54:15,667 INFO L432 NwaCegarLoop]: 495 mSDtfsCounter, 100 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:15,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 976 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:54:15,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17046 states. [2024-11-22 01:54:16,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17046 to 17038. [2024-11-22 01:54:16,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17038 states, 14243 states have (on average 1.5897633925437056) internal successors, (22643), 14247 states have internal predecessors, (22643), 2771 states have call successors, (2771), 20 states have call predecessors, (2771), 23 states have return successors, (3110), 2770 states have call predecessors, (3110), 2770 states have call successors, (3110) [2024-11-22 01:54:16,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17038 states to 17038 states and 28524 transitions. [2024-11-22 01:54:16,534 INFO L78 Accepts]: Start accepts. Automaton has 17038 states and 28524 transitions. Word has length 141 [2024-11-22 01:54:16,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:16,534 INFO L471 AbstractCegarLoop]: Abstraction has 17038 states and 28524 transitions. [2024-11-22 01:54:16,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:54:16,534 INFO L276 IsEmpty]: Start isEmpty. Operand 17038 states and 28524 transitions. [2024-11-22 01:54:16,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-22 01:54:16,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:16,580 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, 1, 1, 1, 1] [2024-11-22 01:54:16,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 01:54:16,581 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:16,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:16,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1597441426, now seen corresponding path program 1 times [2024-11-22 01:54:16,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:16,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797850392] [2024-11-22 01:54:16,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:16,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:16,645 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:54:16,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:16,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797850392] [2024-11-22 01:54:16,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797850392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:16,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:54:16,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:54:16,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449662139] [2024-11-22 01:54:16,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:16,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:54:16,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:16,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:54:16,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:54:16,648 INFO L87 Difference]: Start difference. First operand 17038 states and 28524 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:54:17,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:17,662 INFO L93 Difference]: Finished difference Result 45044 states and 75732 transitions. [2024-11-22 01:54:17,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:54:17,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 142 [2024-11-22 01:54:17,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:17,833 INFO L225 Difference]: With dead ends: 45044 [2024-11-22 01:54:17,833 INFO L226 Difference]: Without dead ends: 30386 [2024-11-22 01:54:17,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:54:17,906 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 98 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:17,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 962 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:54:17,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30386 states. [2024-11-22 01:54:19,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30386 to 30378. [2024-11-22 01:54:19,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30378 states, 25544 states have (on average 1.5857344190416536) internal successors, (40506), 25548 states have internal predecessors, (40506), 4810 states have call successors, (4810), 20 states have call predecessors, (4810), 23 states have return successors, (5423), 4809 states have call predecessors, (5423), 4809 states have call successors, (5423) [2024-11-22 01:54:19,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30378 states to 30378 states and 50739 transitions. [2024-11-22 01:54:19,570 INFO L78 Accepts]: Start accepts. Automaton has 30378 states and 50739 transitions. Word has length 142 [2024-11-22 01:54:19,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:19,571 INFO L471 AbstractCegarLoop]: Abstraction has 30378 states and 50739 transitions. [2024-11-22 01:54:19,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:54:19,571 INFO L276 IsEmpty]: Start isEmpty. Operand 30378 states and 50739 transitions. [2024-11-22 01:54:19,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-22 01:54:19,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:19,631 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:54:19,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 01:54:19,632 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:19,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:19,632 INFO L85 PathProgramCache]: Analyzing trace with hash 410690975, now seen corresponding path program 1 times [2024-11-22 01:54:19,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:19,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514362821] [2024-11-22 01:54:19,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:19,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:19,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:19,719 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:54:19,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:19,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514362821] [2024-11-22 01:54:19,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514362821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:19,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:54:19,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:54:19,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621689062] [2024-11-22 01:54:19,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:19,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:54:19,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:19,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:54:19,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:54:19,723 INFO L87 Difference]: Start difference. First operand 30378 states and 50739 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:54:21,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:21,146 INFO L93 Difference]: Finished difference Result 82781 states and 138724 transitions. [2024-11-22 01:54:21,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:54:21,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 143 [2024-11-22 01:54:21,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:21,445 INFO L225 Difference]: With dead ends: 82781 [2024-11-22 01:54:21,445 INFO L226 Difference]: Without dead ends: 55595 [2024-11-22 01:54:21,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:54:21,545 INFO L432 NwaCegarLoop]: 489 mSDtfsCounter, 96 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:21,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 967 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:54:21,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55595 states. [2024-11-22 01:54:24,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55595 to 55587. [2024-11-22 01:54:24,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55587 states, 47038 states have (on average 1.5803605595475998) internal successors, (74337), 47042 states have internal predecessors, (74337), 8525 states have call successors, (8525), 20 states have call predecessors, (8525), 23 states have return successors, (9670), 8524 states have call predecessors, (9670), 8524 states have call successors, (9670) [2024-11-22 01:54:24,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55587 states to 55587 states and 92532 transitions. [2024-11-22 01:54:24,576 INFO L78 Accepts]: Start accepts. Automaton has 55587 states and 92532 transitions. Word has length 143 [2024-11-22 01:54:24,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:24,577 INFO L471 AbstractCegarLoop]: Abstraction has 55587 states and 92532 transitions. [2024-11-22 01:54:24,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:54:24,577 INFO L276 IsEmpty]: Start isEmpty. Operand 55587 states and 92532 transitions. [2024-11-22 01:54:24,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-22 01:54:24,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:24,629 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, 1, 1, 1, 1, 1, 1] [2024-11-22 01:54:24,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 01:54:24,630 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:24,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:24,631 INFO L85 PathProgramCache]: Analyzing trace with hash -261370478, now seen corresponding path program 1 times [2024-11-22 01:54:24,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:24,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486936281] [2024-11-22 01:54:24,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:24,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:24,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:24,693 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:54:24,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:24,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486936281] [2024-11-22 01:54:24,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486936281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:24,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:54:24,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:54:24,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179646594] [2024-11-22 01:54:24,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:24,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:54:24,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:24,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:54:24,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:54:24,695 INFO L87 Difference]: Start difference. First operand 55587 states and 92532 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:54:27,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:27,296 INFO L93 Difference]: Finished difference Result 103837 states and 173141 transitions. [2024-11-22 01:54:27,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:54:27,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 144 [2024-11-22 01:54:27,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:27,921 INFO L225 Difference]: With dead ends: 103837 [2024-11-22 01:54:27,922 INFO L226 Difference]: Without dead ends: 103669 [2024-11-22 01:54:27,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:54:27,992 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 91 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:27,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 976 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:54:28,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103669 states. [2024-11-22 01:54:31,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103669 to 103661. [2024-11-22 01:54:31,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103661 states, 88313 states have (on average 1.5735848629307123) internal successors, (138968), 88317 states have internal predecessors, (138968), 15324 states have call successors, (15324), 20 states have call predecessors, (15324), 23 states have return successors, (17515), 15323 states have call predecessors, (17515), 15323 states have call successors, (17515) [2024-11-22 01:54:32,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103661 states to 103661 states and 171807 transitions. [2024-11-22 01:54:32,384 INFO L78 Accepts]: Start accepts. Automaton has 103661 states and 171807 transitions. Word has length 144 [2024-11-22 01:54:32,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:32,384 INFO L471 AbstractCegarLoop]: Abstraction has 103661 states and 171807 transitions. [2024-11-22 01:54:32,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:54:32,385 INFO L276 IsEmpty]: Start isEmpty. Operand 103661 states and 171807 transitions. [2024-11-22 01:54:32,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 01:54:32,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:32,453 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:54:32,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 01:54:32,454 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:32,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:32,454 INFO L85 PathProgramCache]: Analyzing trace with hash 602770110, now seen corresponding path program 1 times [2024-11-22 01:54:32,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:32,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343838954] [2024-11-22 01:54:32,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:32,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:32,648 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:54:32,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:32,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343838954] [2024-11-22 01:54:32,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343838954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:32,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:54:32,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:54:32,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958138416] [2024-11-22 01:54:32,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:32,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:54:32,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:32,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:54:32,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:54:32,651 INFO L87 Difference]: Start difference. First operand 103661 states and 171807 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:54:35,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:35,638 INFO L93 Difference]: Finished difference Result 103987 states and 172262 transitions. [2024-11-22 01:54:35,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 01:54:35,639 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (17), 2 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 145 [2024-11-22 01:54:35,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:36,163 INFO L225 Difference]: With dead ends: 103987 [2024-11-22 01:54:36,163 INFO L226 Difference]: Without dead ends: 103827 [2024-11-22 01:54:36,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:54:36,221 INFO L432 NwaCegarLoop]: 522 mSDtfsCounter, 417 mSDsluCounter, 1676 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 2198 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:36,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 2198 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 01:54:36,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103827 states. [2024-11-22 01:54:39,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103827 to 103823. [2024-11-22 01:54:39,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103823 states, 88440 states have (on average 1.5733604703753958) internal successors, (139148), 88444 states have internal predecessors, (139148), 15346 states have call successors, (15346), 31 states have call predecessors, (15346), 36 states have return successors, (17540), 15347 states have call predecessors, (17540), 15344 states have call successors, (17540) [2024-11-22 01:54:40,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103823 states to 103823 states and 172034 transitions. [2024-11-22 01:54:40,547 INFO L78 Accepts]: Start accepts. Automaton has 103823 states and 172034 transitions. Word has length 145 [2024-11-22 01:54:40,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:40,548 INFO L471 AbstractCegarLoop]: Abstraction has 103823 states and 172034 transitions. [2024-11-22 01:54:40,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:54:40,548 INFO L276 IsEmpty]: Start isEmpty. Operand 103823 states and 172034 transitions. [2024-11-22 01:54:40,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-22 01:54:40,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:40,618 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:54:40,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 01:54:40,619 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:40,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:40,619 INFO L85 PathProgramCache]: Analyzing trace with hash -47118146, now seen corresponding path program 1 times [2024-11-22 01:54:40,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:40,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400040351] [2024-11-22 01:54:40,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:40,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:41,038 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:54:41,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:41,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400040351] [2024-11-22 01:54:41,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400040351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:41,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:54:41,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-22 01:54:41,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716266898] [2024-11-22 01:54:41,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:41,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 01:54:41,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:41,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 01:54:41,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:54:41,040 INFO L87 Difference]: Start difference. First operand 103823 states and 172034 transitions. Second operand has 13 states, 11 states have (on average 9.181818181818182) internal successors, (101), 12 states have internal predecessors, (101), 8 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) [2024-11-22 01:54:43,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:43,574 INFO L93 Difference]: Finished difference Result 104300 states and 172717 transitions. [2024-11-22 01:54:43,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 01:54:43,575 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 9.181818181818182) internal successors, (101), 12 states have internal predecessors, (101), 8 states have call successors, (17), 2 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 146 [2024-11-22 01:54:43,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:44,125 INFO L225 Difference]: With dead ends: 104300 [2024-11-22 01:54:44,126 INFO L226 Difference]: Without dead ends: 103882 [2024-11-22 01:54:44,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-11-22 01:54:44,205 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 156 mSDsluCounter, 5199 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 5673 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:44,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 5673 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:54:44,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103882 states. [2024-11-22 01:54:47,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103882 to 103878. [2024-11-22 01:54:48,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103878 states, 88482 states have (on average 1.5732691394859972) internal successors, (139206), 88489 states have internal predecessors, (139206), 15357 states have call successors, (15357), 32 states have call predecessors, (15357), 38 states have return successors, (17553), 15356 states have call predecessors, (17553), 15355 states have call successors, (17553) [2024-11-22 01:54:48,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103878 states to 103878 states and 172116 transitions. [2024-11-22 01:54:48,376 INFO L78 Accepts]: Start accepts. Automaton has 103878 states and 172116 transitions. Word has length 146 [2024-11-22 01:54:48,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:48,377 INFO L471 AbstractCegarLoop]: Abstraction has 103878 states and 172116 transitions. [2024-11-22 01:54:48,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 9.181818181818182) internal successors, (101), 12 states have internal predecessors, (101), 8 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) [2024-11-22 01:54:48,378 INFO L276 IsEmpty]: Start isEmpty. Operand 103878 states and 172116 transitions. [2024-11-22 01:54:48,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-22 01:54:48,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:48,514 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:54:48,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 01:54:48,514 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:48,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:48,515 INFO L85 PathProgramCache]: Analyzing trace with hash 353873841, now seen corresponding path program 1 times [2024-11-22 01:54:48,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:48,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139915929] [2024-11-22 01:54:48,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:48,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:48,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:48,697 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-22 01:54:48,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:48,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139915929] [2024-11-22 01:54:48,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139915929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:48,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:54:48,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:54:48,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073361146] [2024-11-22 01:54:48,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:48,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:54:48,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:48,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:54:48,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:54:48,700 INFO L87 Difference]: Start difference. First operand 103878 states and 172116 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 01:54:51,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:51,179 INFO L93 Difference]: Finished difference Result 104611 states and 173146 transitions. [2024-11-22 01:54:51,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 01:54:51,180 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (20), 2 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 170 [2024-11-22 01:54:51,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:51,638 INFO L225 Difference]: With dead ends: 104611 [2024-11-22 01:54:51,638 INFO L226 Difference]: Without dead ends: 104261 [2024-11-22 01:54:51,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:54:51,693 INFO L432 NwaCegarLoop]: 670 mSDtfsCounter, 421 mSDsluCounter, 2107 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 2777 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:51,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 2777 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 01:54:51,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104261 states.