/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 23:18:19,811 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 23:18:19,862 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 23:18:19,866 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 23:18:19,866 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 23:18:19,884 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 23:18:19,884 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 23:18:19,885 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 23:18:19,885 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 23:18:19,886 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 23:18:19,886 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 23:18:19,886 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 23:18:19,887 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 23:18:19,887 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 23:18:19,887 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 23:18:19,888 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 23:18:19,888 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 23:18:19,888 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 23:18:19,888 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 23:18:19,889 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 23:18:19,889 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 23:18:19,889 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 23:18:19,890 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 23:18:19,890 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 23:18:19,890 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 23:18:19,890 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 23:18:19,890 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 23:18:19,891 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 23:18:19,891 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 23:18:19,891 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 23:18:19,891 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 23:18:19,892 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 23:18:19,892 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:18:19,892 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 23:18:19,892 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 23:18:19,893 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 23:18:19,893 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 23:18:19,893 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 23:18:19,893 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 23:18:19,894 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 23:18:19,894 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 23:18:19,894 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 23:18:19,894 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 23:18:19,895 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 23:18:20,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 23:18:20,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 23:18:20,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 23:18:20,112 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 23:18:20,113 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 23:18:20,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product24.cil.c [2023-12-19 23:18:21,326 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 23:18:21,649 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 23:18:21,650 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product24.cil.c [2023-12-19 23:18:21,675 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fe95706c/36ab62535b4e46e686561b054f5a0faa/FLAG16349c5f1 [2023-12-19 23:18:21,689 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fe95706c/36ab62535b4e46e686561b054f5a0faa [2023-12-19 23:18:21,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 23:18:21,694 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 23:18:21,697 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 23:18:21,697 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 23:18:21,703 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 23:18:21,704 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:18:21" (1/1) ... [2023-12-19 23:18:21,705 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29a6fb9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:18:21, skipping insertion in model container [2023-12-19 23:18:21,705 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:18:21" (1/1) ... [2023-12-19 23:18:21,781 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 23:18:22,123 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product24.cil.c[33676,33689] [2023-12-19 23:18:22,307 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:18:22,320 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 23:18:22,333 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2023-12-19 23:18:22,335 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [277] [2023-12-19 23:18:22,335 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1357] [2023-12-19 23:18:22,335 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1375] [2023-12-19 23:18:22,335 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1424] [2023-12-19 23:18:22,336 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1433] [2023-12-19 23:18:22,336 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1799] [2023-12-19 23:18:22,336 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2211] [2023-12-19 23:18:22,336 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2503] [2023-12-19 23:18:22,336 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2530] [2023-12-19 23:18:22,336 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2629] [2023-12-19 23:18:22,388 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product24.cil.c[33676,33689] [2023-12-19 23:18:22,429 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:18:22,462 INFO L206 MainTranslator]: Completed translation [2023-12-19 23:18:22,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:18:22 WrapperNode [2023-12-19 23:18:22,463 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 23:18:22,464 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 23:18:22,464 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 23:18:22,465 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 23:18:22,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:18:22" (1/1) ... [2023-12-19 23:18:22,495 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:18:22" (1/1) ... [2023-12-19 23:18:22,544 INFO L138 Inliner]: procedures = 130, calls = 193, calls flagged for inlining = 63, calls inlined = 58, statements flattened = 1022 [2023-12-19 23:18:22,545 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 23:18:22,545 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 23:18:22,545 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 23:18:22,546 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 23:18:22,563 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:18:22" (1/1) ... [2023-12-19 23:18:22,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:18:22" (1/1) ... [2023-12-19 23:18:22,587 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:18:22" (1/1) ... [2023-12-19 23:18:22,611 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]. [2023-12-19 23:18:22,611 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:18:22" (1/1) ... [2023-12-19 23:18:22,612 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:18:22" (1/1) ... [2023-12-19 23:18:22,639 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:18:22" (1/1) ... [2023-12-19 23:18:22,647 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:18:22" (1/1) ... [2023-12-19 23:18:22,652 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:18:22" (1/1) ... [2023-12-19 23:18:22,656 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:18:22" (1/1) ... [2023-12-19 23:18:22,664 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 23:18:22,665 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 23:18:22,665 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 23:18:22,665 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 23:18:22,666 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:18:22" (1/1) ... [2023-12-19 23:18:22,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:18:22,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:18:22,734 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) [2023-12-19 23:18:22,763 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 [2023-12-19 23:18:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-19 23:18:22,771 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-19 23:18:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-19 23:18:22,771 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-19 23:18:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-19 23:18:22,771 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-19 23:18:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-19 23:18:22,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-19 23:18:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-19 23:18:22,772 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-19 23:18:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-19 23:18:22,773 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-19 23:18:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-19 23:18:22,773 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-19 23:18:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-19 23:18:22,774 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-19 23:18:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-19 23:18:22,776 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-19 23:18:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-19 23:18:22,777 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-19 23:18:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 23:18:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-19 23:18:22,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-19 23:18:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-19 23:18:22,777 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-19 23:18:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-19 23:18:22,777 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-19 23:18:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-19 23:18:22,778 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-19 23:18:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-19 23:18:22,778 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-19 23:18:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-19 23:18:22,778 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-19 23:18:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-19 23:18:22,778 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-19 23:18:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 23:18:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-19 23:18:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-19 23:18:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-19 23:18:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-19 23:18:22,779 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-19 23:18:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 23:18:22,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 23:18:23,006 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 23:18:23,007 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 23:18:23,869 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 23:18:23,918 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 23:18:23,919 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 23:18:23,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:18:23 BoogieIcfgContainer [2023-12-19 23:18:23,919 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 23:18:23,921 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 23:18:23,921 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 23:18:23,924 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 23:18:23,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 11:18:21" (1/3) ... [2023-12-19 23:18:23,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0c69ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:18:23, skipping insertion in model container [2023-12-19 23:18:23,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:18:22" (2/3) ... [2023-12-19 23:18:23,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0c69ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:18:23, skipping insertion in model container [2023-12-19 23:18:23,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:18:23" (3/3) ... [2023-12-19 23:18:23,926 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product24.cil.c [2023-12-19 23:18:23,941 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 23:18:23,942 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 23:18:23,987 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 23:18:23,992 INFO L357 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, mHoare=true, 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;@6e9a7007, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 23:18:23,993 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 23:18:23,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 299 states, 231 states have (on average 1.593073593073593) internal successors, (368), 233 states have internal predecessors, (368), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-19 23:18:24,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-19 23:18:24,014 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:18:24,015 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:18:24,015 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:18:24,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:18:24,020 INFO L85 PathProgramCache]: Analyzing trace with hash -182342470, now seen corresponding path program 1 times [2023-12-19 23:18:24,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:18:24,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600589410] [2023-12-19 23:18:24,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:18:24,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:18:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:24,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:18:24,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:24,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:18:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:24,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:18:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:24,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 23:18:24,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:24,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 23:18:24,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:24,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 23:18:24,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:24,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 23:18:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:24,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 23:18:24,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:24,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 23:18:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:24,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 23:18:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:24,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 23:18:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:24,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-19 23:18:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:24,719 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-19 23:18:24,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:18:24,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600589410] [2023-12-19 23:18:24,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600589410] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:18:24,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595643077] [2023-12-19 23:18:24,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:18:24,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:18:24,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:18:24,728 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) [2023-12-19 23:18:24,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 23:18:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:25,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 23:18:25,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:18:25,123 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-19 23:18:25,123 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:18:25,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595643077] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:18:25,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:18:25,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-12-19 23:18:25,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26396234] [2023-12-19 23:18:25,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:18:25,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 23:18:25,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:18:25,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 23:18:25,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 23:18:25,168 INFO L87 Difference]: Start difference. First operand has 299 states, 231 states have (on average 1.593073593073593) internal successors, (368), 233 states have internal predecessors, (368), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:18:25,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:18:25,239 INFO L93 Difference]: Finished difference Result 449 states and 684 transitions. [2023-12-19 23:18:25,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 23:18:25,242 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 86 [2023-12-19 23:18:25,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:18:25,253 INFO L225 Difference]: With dead ends: 449 [2023-12-19 23:18:25,253 INFO L226 Difference]: Without dead ends: 296 [2023-12-19 23:18:25,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 23:18:25,270 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:18:25,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 443 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:18:25,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2023-12-19 23:18:25,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2023-12-19 23:18:25,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 229 states have (on average 1.5764192139737991) internal successors, (361), 230 states have internal predecessors, (361), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-19 23:18:25,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 456 transitions. [2023-12-19 23:18:25,357 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 456 transitions. Word has length 86 [2023-12-19 23:18:25,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:18:25,359 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 456 transitions. [2023-12-19 23:18:25,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:18:25,362 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 456 transitions. [2023-12-19 23:18:25,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-19 23:18:25,367 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:18:25,367 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:18:25,377 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-19 23:18:25,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-19 23:18:25,568 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:18:25,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:18:25,569 INFO L85 PathProgramCache]: Analyzing trace with hash 486913082, now seen corresponding path program 1 times [2023-12-19 23:18:25,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:18:25,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240125013] [2023-12-19 23:18:25,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:18:25,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:18:25,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:25,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:18:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:25,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:18:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:25,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:18:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:25,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 23:18:25,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:25,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 23:18:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:25,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 23:18:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:25,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 23:18:25,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:25,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-19 23:18:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:25,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 23:18:25,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:25,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-19 23:18:25,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:25,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 23:18:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:25,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 23:18:25,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:25,849 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-19 23:18:25,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:18:25,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240125013] [2023-12-19 23:18:25,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240125013] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:18:25,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493854747] [2023-12-19 23:18:25,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:18:25,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:18:25,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:18:25,852 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) [2023-12-19 23:18:25,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 23:18:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:26,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 23:18:26,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:18:26,171 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-19 23:18:26,171 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:18:26,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493854747] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:18:26,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:18:26,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-19 23:18:26,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204592845] [2023-12-19 23:18:26,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:18:26,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:18:26,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:18:26,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:18:26,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:18:26,175 INFO L87 Difference]: Start difference. First operand 296 states and 456 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:18:26,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:18:26,259 INFO L93 Difference]: Finished difference Result 445 states and 671 transitions. [2023-12-19 23:18:26,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:18:26,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 87 [2023-12-19 23:18:26,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:18:26,263 INFO L225 Difference]: With dead ends: 445 [2023-12-19 23:18:26,264 INFO L226 Difference]: Without dead ends: 298 [2023-12-19 23:18:26,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:18:26,266 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 0 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:18:26,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 879 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:18:26,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-19 23:18:26,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2023-12-19 23:18:26,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 231 states have (on average 1.5714285714285714) internal successors, (363), 232 states have internal predecessors, (363), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-19 23:18:26,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 458 transitions. [2023-12-19 23:18:26,285 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 458 transitions. Word has length 87 [2023-12-19 23:18:26,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:18:26,285 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 458 transitions. [2023-12-19 23:18:26,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:18:26,286 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 458 transitions. [2023-12-19 23:18:26,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-19 23:18:26,289 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:18:26,289 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:18:26,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 23:18:26,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-19 23:18:26,498 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:18:26,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:18:26,498 INFO L85 PathProgramCache]: Analyzing trace with hash 2008296413, now seen corresponding path program 1 times [2023-12-19 23:18:26,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:18:26,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785574013] [2023-12-19 23:18:26,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:18:26,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:18:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:26,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:18:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:26,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:18:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:26,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:18:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:26,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 23:18:26,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:26,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 23:18:26,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:26,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 23:18:26,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:26,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 23:18:26,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:26,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 23:18:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:26,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 23:18:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:26,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 23:18:26,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:26,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 23:18:26,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:26,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 23:18:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:26,771 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-19 23:18:26,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:18:26,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785574013] [2023-12-19 23:18:26,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785574013] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:18:26,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820603036] [2023-12-19 23:18:26,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:18:26,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:18:26,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:18:26,775 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) [2023-12-19 23:18:26,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 23:18:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:27,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 23:18:27,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:18:27,064 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-19 23:18:27,064 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:18:27,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820603036] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:18:27,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:18:27,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-19 23:18:27,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753685928] [2023-12-19 23:18:27,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:18:27,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:18:27,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:18:27,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:18:27,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:18:27,067 INFO L87 Difference]: Start difference. First operand 298 states and 458 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:18:27,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:18:27,113 INFO L93 Difference]: Finished difference Result 630 states and 982 transitions. [2023-12-19 23:18:27,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:18:27,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 94 [2023-12-19 23:18:27,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:18:27,117 INFO L225 Difference]: With dead ends: 630 [2023-12-19 23:18:27,117 INFO L226 Difference]: Without dead ends: 354 [2023-12-19 23:18:27,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:18:27,119 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 109 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:18:27,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 846 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:18:27,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-12-19 23:18:27,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 349. [2023-12-19 23:18:27,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 271 states have (on average 1.5867158671586716) internal successors, (430), 272 states have internal predecessors, (430), 59 states have call successors, (59), 18 states have call predecessors, (59), 18 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-19 23:18:27,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 547 transitions. [2023-12-19 23:18:27,139 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 547 transitions. Word has length 94 [2023-12-19 23:18:27,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:18:27,139 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 547 transitions. [2023-12-19 23:18:27,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:18:27,140 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 547 transitions. [2023-12-19 23:18:27,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-19 23:18:27,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:18:27,143 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:18:27,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 23:18:27,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:18:27,351 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:18:27,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:18:27,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1277576091, now seen corresponding path program 1 times [2023-12-19 23:18:27,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:18:27,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034033051] [2023-12-19 23:18:27,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:18:27,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:18:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:27,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:18:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:27,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:18:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:27,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:18:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:27,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 23:18:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:27,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 23:18:27,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:27,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 23:18:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:27,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 23:18:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:27,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 23:18:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:27,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 23:18:27,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:27,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 23:18:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:27,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 23:18:27,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:27,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 23:18:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:27,552 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-19 23:18:27,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:18:27,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034033051] [2023-12-19 23:18:27,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034033051] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:18:27,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308327623] [2023-12-19 23:18:27,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:18:27,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:18:27,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:18:27,554 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) [2023-12-19 23:18:27,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 23:18:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:27,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-19 23:18:27,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:18:27,883 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-19 23:18:27,884 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:18:27,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308327623] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:18:27,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:18:27,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-12-19 23:18:27,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161550289] [2023-12-19 23:18:27,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:18:27,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:18:27,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:18:27,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:18:27,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-19 23:18:27,886 INFO L87 Difference]: Start difference. First operand 349 states and 547 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-19 23:18:27,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:18:27,994 INFO L93 Difference]: Finished difference Result 693 states and 1088 transitions. [2023-12-19 23:18:27,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:18:27,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 95 [2023-12-19 23:18:27,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:18:28,000 INFO L225 Difference]: With dead ends: 693 [2023-12-19 23:18:28,001 INFO L226 Difference]: Without dead ends: 351 [2023-12-19 23:18:28,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:18:28,005 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 8 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:18:28,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1713 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:18:28,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-12-19 23:18:28,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2023-12-19 23:18:28,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 272 states have (on average 1.5845588235294117) internal successors, (431), 274 states have internal predecessors, (431), 59 states have call successors, (59), 18 states have call predecessors, (59), 19 states have return successors, (60), 58 states have call predecessors, (60), 58 states have call successors, (60) [2023-12-19 23:18:28,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 550 transitions. [2023-12-19 23:18:28,039 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 550 transitions. Word has length 95 [2023-12-19 23:18:28,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:18:28,039 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 550 transitions. [2023-12-19 23:18:28,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-19 23:18:28,040 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 550 transitions. [2023-12-19 23:18:28,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-19 23:18:28,043 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:18:28,043 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:18:28,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 23:18:28,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:18:28,251 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:18:28,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:18:28,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1729764307, now seen corresponding path program 1 times [2023-12-19 23:18:28,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:18:28,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448660742] [2023-12-19 23:18:28,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:18:28,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:18:28,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:28,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:18:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:28,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:18:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:28,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:18:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:28,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:18:28,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:28,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-19 23:18:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:28,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 23:18:28,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:28,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 23:18:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:28,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 23:18:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:28,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 23:18:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:28,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 23:18:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:28,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 23:18:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:28,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-19 23:18:28,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:28,457 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-19 23:18:28,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:18:28,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448660742] [2023-12-19 23:18:28,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448660742] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:18:28,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904364101] [2023-12-19 23:18:28,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:18:28,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:18:28,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:18:28,459 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) [2023-12-19 23:18:28,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 23:18:28,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:28,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 23:18:28,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:18:28,750 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-19 23:18:28,750 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:18:28,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904364101] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:18:28,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:18:28,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-12-19 23:18:28,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335266536] [2023-12-19 23:18:28,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:18:28,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:18:28,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:18:28,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:18:28,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-12-19 23:18:28,752 INFO L87 Difference]: Start difference. First operand 351 states and 550 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-19 23:18:28,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:18:28,843 INFO L93 Difference]: Finished difference Result 695 states and 1093 transitions. [2023-12-19 23:18:28,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:18:28,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 96 [2023-12-19 23:18:28,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:18:28,846 INFO L225 Difference]: With dead ends: 695 [2023-12-19 23:18:28,846 INFO L226 Difference]: Without dead ends: 353 [2023-12-19 23:18:28,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-19 23:18:28,848 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 8 mSDsluCounter, 1270 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:18:28,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1699 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:18:28,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2023-12-19 23:18:28,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2023-12-19 23:18:28,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 273 states have (on average 1.5824175824175823) internal successors, (432), 276 states have internal predecessors, (432), 59 states have call successors, (59), 18 states have call predecessors, (59), 20 states have return successors, (65), 58 states have call predecessors, (65), 58 states have call successors, (65) [2023-12-19 23:18:28,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 556 transitions. [2023-12-19 23:18:28,867 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 556 transitions. Word has length 96 [2023-12-19 23:18:28,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:18:28,867 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 556 transitions. [2023-12-19 23:18:28,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-19 23:18:28,868 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 556 transitions. [2023-12-19 23:18:28,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-19 23:18:28,873 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:18:28,873 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:18:28,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 23:18:29,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:18:29,081 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:18:29,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:18:29,082 INFO L85 PathProgramCache]: Analyzing trace with hash 653399283, now seen corresponding path program 1 times [2023-12-19 23:18:29,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:18:29,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534661429] [2023-12-19 23:18:29,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:18:29,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:18:29,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:29,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:18:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:29,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:18:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:29,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:18:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:29,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:18:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:29,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:18:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:29,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 23:18:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:29,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 23:18:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:29,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-19 23:18:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:29,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-19 23:18:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:29,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 23:18:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:29,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-19 23:18:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:29,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 23:18:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:29,260 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-19 23:18:29,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:18:29,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534661429] [2023-12-19 23:18:29,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534661429] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:18:29,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:18:29,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 23:18:29,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167945569] [2023-12-19 23:18:29,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:18:29,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 23:18:29,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:18:29,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 23:18:29,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 23:18:29,262 INFO L87 Difference]: Start difference. First operand 353 states and 556 transitions. Second operand has 9 states, 8 states have (on average 7.125) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-19 23:18:31,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:18:31,223 INFO L93 Difference]: Finished difference Result 849 states and 1356 transitions. [2023-12-19 23:18:31,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 23:18:31,223 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 97 [2023-12-19 23:18:31,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:18:31,227 INFO L225 Difference]: With dead ends: 849 [2023-12-19 23:18:31,227 INFO L226 Difference]: Without dead ends: 515 [2023-12-19 23:18:31,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-19 23:18:31,230 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 994 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2584 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 2886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 2584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-19 23:18:31,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 1011 Invalid, 2886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 2584 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-19 23:18:31,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2023-12-19 23:18:31,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 353. [2023-12-19 23:18:31,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 273 states have (on average 1.5824175824175823) internal successors, (432), 276 states have internal predecessors, (432), 59 states have call successors, (59), 18 states have call predecessors, (59), 20 states have return successors, (64), 58 states have call predecessors, (64), 58 states have call successors, (64) [2023-12-19 23:18:31,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 555 transitions. [2023-12-19 23:18:31,260 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 555 transitions. Word has length 97 [2023-12-19 23:18:31,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:18:31,260 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 555 transitions. [2023-12-19 23:18:31,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-19 23:18:31,261 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 555 transitions. [2023-12-19 23:18:31,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-19 23:18:31,262 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:18:31,262 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-19 23:18:31,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 23:18:31,263 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:18:31,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:18:31,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1468094793, now seen corresponding path program 2 times [2023-12-19 23:18:31,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:18:31,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015700428] [2023-12-19 23:18:31,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:18:31,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:18:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:31,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:18:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:31,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:18:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:31,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:18:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:31,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:18:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:31,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:18:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:31,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 23:18:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:31,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 23:18:31,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:31,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 23:18:31,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:31,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 23:18:31,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:31,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 23:18:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:31,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 23:18:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:31,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 23:18:31,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:31,460 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-19 23:18:31,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:18:31,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015700428] [2023-12-19 23:18:31,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015700428] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:18:31,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:18:31,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 23:18:31,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137531417] [2023-12-19 23:18:31,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:18:31,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 23:18:31,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:18:31,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 23:18:31,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 23:18:31,462 INFO L87 Difference]: Start difference. First operand 353 states and 555 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-19 23:18:33,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:18:33,293 INFO L93 Difference]: Finished difference Result 851 states and 1359 transitions. [2023-12-19 23:18:33,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 23:18:33,294 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 98 [2023-12-19 23:18:33,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:18:33,298 INFO L225 Difference]: With dead ends: 851 [2023-12-19 23:18:33,298 INFO L226 Difference]: Without dead ends: 517 [2023-12-19 23:18:33,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-19 23:18:33,300 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 990 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2585 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 2889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 2585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-19 23:18:33,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 1010 Invalid, 2889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 2585 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-19 23:18:33,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2023-12-19 23:18:33,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 355. [2023-12-19 23:18:33,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 274 states have (on average 1.5802919708029197) internal successors, (433), 278 states have internal predecessors, (433), 59 states have call successors, (59), 18 states have call predecessors, (59), 21 states have return successors, (66), 58 states have call predecessors, (66), 58 states have call successors, (66) [2023-12-19 23:18:33,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 558 transitions. [2023-12-19 23:18:33,331 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 558 transitions. Word has length 98 [2023-12-19 23:18:33,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:18:33,331 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 558 transitions. [2023-12-19 23:18:33,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-19 23:18:33,332 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 558 transitions. [2023-12-19 23:18:33,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-19 23:18:33,348 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:18:33,348 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:18:33,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 23:18:33,349 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:18:33,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:18:33,349 INFO L85 PathProgramCache]: Analyzing trace with hash -2086532488, now seen corresponding path program 1 times [2023-12-19 23:18:33,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:18:33,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116614832] [2023-12-19 23:18:33,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:18:33,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:18:33,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:33,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:18:33,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:33,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:18:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:33,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:18:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:33,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:18:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:33,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:18:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:33,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:18:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:33,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 23:18:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:33,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-19 23:18:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:33,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 23:18:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:33,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-19 23:18:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:33,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 23:18:33,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:33,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-19 23:18:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:33,570 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-19 23:18:33,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:18:33,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116614832] [2023-12-19 23:18:33,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116614832] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:18:33,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:18:33,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-19 23:18:33,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032148406] [2023-12-19 23:18:33,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:18:33,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 23:18:33,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:18:33,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 23:18:33,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-19 23:18:33,571 INFO L87 Difference]: Start difference. First operand 355 states and 558 transitions. Second operand has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-19 23:18:36,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:18:36,202 INFO L93 Difference]: Finished difference Result 849 states and 1354 transitions. [2023-12-19 23:18:36,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 23:18:36,202 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 99 [2023-12-19 23:18:36,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:18:36,206 INFO L225 Difference]: With dead ends: 849 [2023-12-19 23:18:36,206 INFO L226 Difference]: Without dead ends: 517 [2023-12-19 23:18:36,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-19 23:18:36,208 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 999 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 4288 mSolverCounterSat, 308 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 4596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 4288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-19 23:18:36,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 1398 Invalid, 4596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 4288 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-19 23:18:36,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2023-12-19 23:18:36,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 355. [2023-12-19 23:18:36,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 274 states have (on average 1.5802919708029197) internal successors, (433), 278 states have internal predecessors, (433), 59 states have call successors, (59), 18 states have call predecessors, (59), 21 states have return successors, (65), 58 states have call predecessors, (65), 58 states have call successors, (65) [2023-12-19 23:18:36,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 557 transitions. [2023-12-19 23:18:36,236 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 557 transitions. Word has length 99 [2023-12-19 23:18:36,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:18:36,236 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 557 transitions. [2023-12-19 23:18:36,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-19 23:18:36,236 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 557 transitions. [2023-12-19 23:18:36,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-19 23:18:36,238 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:18:36,238 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-19 23:18:36,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 23:18:36,238 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:18:36,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:18:36,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1002923400, now seen corresponding path program 2 times [2023-12-19 23:18:36,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:18:36,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038081571] [2023-12-19 23:18:36,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:18:36,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:18:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:36,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:18:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:36,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:18:36,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:36,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:18:36,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:36,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:18:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:36,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:18:36,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:36,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:18:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:36,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 23:18:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:36,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 23:18:36,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:36,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-19 23:18:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:36,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 23:18:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:36,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-19 23:18:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:36,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 23:18:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:36,465 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-19 23:18:36,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:18:36,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038081571] [2023-12-19 23:18:36,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038081571] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:18:36,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:18:36,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-19 23:18:36,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740060664] [2023-12-19 23:18:36,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:18:36,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 23:18:36,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:18:36,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 23:18:36,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-19 23:18:36,467 INFO L87 Difference]: Start difference. First operand 355 states and 557 transitions. Second operand has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-19 23:18:39,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:18:39,065 INFO L93 Difference]: Finished difference Result 851 states and 1360 transitions. [2023-12-19 23:18:39,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 23:18:39,065 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 100 [2023-12-19 23:18:39,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:18:39,069 INFO L225 Difference]: With dead ends: 851 [2023-12-19 23:18:39,069 INFO L226 Difference]: Without dead ends: 519 [2023-12-19 23:18:39,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-19 23:18:39,073 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 995 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 4275 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 4582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 4275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-19 23:18:39,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 1397 Invalid, 4582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 4275 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-19 23:18:39,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2023-12-19 23:18:39,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 357. [2023-12-19 23:18:39,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 275 states have (on average 1.5781818181818181) internal successors, (434), 280 states have internal predecessors, (434), 59 states have call successors, (59), 18 states have call predecessors, (59), 22 states have return successors, (70), 58 states have call predecessors, (70), 58 states have call successors, (70) [2023-12-19 23:18:39,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 563 transitions. [2023-12-19 23:18:39,099 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 563 transitions. Word has length 100 [2023-12-19 23:18:39,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:18:39,099 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 563 transitions. [2023-12-19 23:18:39,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-19 23:18:39,099 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 563 transitions. [2023-12-19 23:18:39,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-19 23:18:39,101 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:18:39,102 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:18:39,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 23:18:39,102 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:18:39,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:18:39,102 INFO L85 PathProgramCache]: Analyzing trace with hash 985672957, now seen corresponding path program 1 times [2023-12-19 23:18:39,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:18:39,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547347096] [2023-12-19 23:18:39,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:18:39,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:18:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:39,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:18:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:39,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:18:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:39,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:18:39,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:39,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:18:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:39,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:18:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:39,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:18:39,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:39,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 23:18:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:39,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 23:18:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:39,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-19 23:18:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:39,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 23:18:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:39,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 23:18:39,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:39,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-19 23:18:39,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:39,330 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-19 23:18:39,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:18:39,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547347096] [2023-12-19 23:18:39,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547347096] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:18:39,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721569679] [2023-12-19 23:18:39,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:18:39,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:18:39,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:18:39,332 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) [2023-12-19 23:18:39,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 23:18:39,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:39,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 954 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 23:18:39,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:18:39,602 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 23:18:39,602 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 23:18:39,672 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 23:18:39,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721569679] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 23:18:39,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 23:18:39,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-12-19 23:18:39,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550292976] [2023-12-19 23:18:39,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 23:18:39,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-19 23:18:39,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:18:39,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-19 23:18:39,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-12-19 23:18:39,675 INFO L87 Difference]: Start difference. First operand 357 states and 563 transitions. Second operand has 15 states, 14 states have (on average 7.5) internal successors, (105), 11 states have internal predecessors, (105), 4 states have call successors, (29), 6 states have call predecessors, (29), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-12-19 23:18:42,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:18:42,843 INFO L93 Difference]: Finished difference Result 1200 states and 2006 transitions. [2023-12-19 23:18:42,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-19 23:18:42,844 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.5) internal successors, (105), 11 states have internal predecessors, (105), 4 states have call successors, (29), 6 states have call predecessors, (29), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 101 [2023-12-19 23:18:42,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:18:42,850 INFO L225 Difference]: With dead ends: 1200 [2023-12-19 23:18:42,850 INFO L226 Difference]: Without dead ends: 869 [2023-12-19 23:18:42,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2023-12-19 23:18:42,853 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 2001 mSDsluCounter, 1475 mSDsCounter, 0 mSdLazyCounter, 5249 mSolverCounterSat, 615 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2018 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 5864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 615 IncrementalHoareTripleChecker+Valid, 5249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-19 23:18:42,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2018 Valid, 1630 Invalid, 5864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [615 Valid, 5249 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-19 23:18:42,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2023-12-19 23:18:42,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 692. [2023-12-19 23:18:42,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 546 states have (on average 1.6245421245421245) internal successors, (887), 551 states have internal predecessors, (887), 123 states have call successors, (123), 18 states have call predecessors, (123), 22 states have return successors, (144), 122 states have call predecessors, (144), 122 states have call successors, (144) [2023-12-19 23:18:42,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1154 transitions. [2023-12-19 23:18:42,896 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1154 transitions. Word has length 101 [2023-12-19 23:18:42,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:18:42,897 INFO L495 AbstractCegarLoop]: Abstraction has 692 states and 1154 transitions. [2023-12-19 23:18:42,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.5) internal successors, (105), 11 states have internal predecessors, (105), 4 states have call successors, (29), 6 states have call predecessors, (29), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-12-19 23:18:42,897 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1154 transitions. [2023-12-19 23:18:42,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-19 23:18:42,900 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:18:42,900 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:18:42,910 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-19 23:18:43,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:18:43,109 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:18:43,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:18:43,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1506499152, now seen corresponding path program 1 times [2023-12-19 23:18:43,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:18:43,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434643270] [2023-12-19 23:18:43,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:18:43,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:18:43,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:43,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:18:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:43,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:18:43,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:43,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:18:43,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:43,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:18:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:43,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:18:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:43,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:18:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:43,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 23:18:43,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:43,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-19 23:18:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:43,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 23:18:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:43,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 23:18:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:43,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 23:18:43,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:43,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-19 23:18:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:43,219 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 23:18:43,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:18:43,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434643270] [2023-12-19 23:18:43,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434643270] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:18:43,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:18:43,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:18:43,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101800065] [2023-12-19 23:18:43,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:18:43,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:18:43,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:18:43,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:18:43,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:18:43,222 INFO L87 Difference]: Start difference. First operand 692 states and 1154 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:18:44,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:18:44,802 INFO L93 Difference]: Finished difference Result 1795 states and 3065 transitions. [2023-12-19 23:18:44,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:18:44,803 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2023-12-19 23:18:44,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:18:44,809 INFO L225 Difference]: With dead ends: 1795 [2023-12-19 23:18:44,809 INFO L226 Difference]: Without dead ends: 1171 [2023-12-19 23:18:44,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:18:44,812 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 1089 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 1522 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 1876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 1522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-19 23:18:44,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1104 Valid, 783 Invalid, 1876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 1522 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-19 23:18:44,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2023-12-19 23:18:44,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 1004. [2023-12-19 23:18:44,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 794 states have (on average 1.6360201511335013) internal successors, (1299), 799 states have internal predecessors, (1299), 187 states have call successors, (187), 18 states have call predecessors, (187), 22 states have return successors, (218), 186 states have call predecessors, (218), 186 states have call successors, (218) [2023-12-19 23:18:44,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1704 transitions. [2023-12-19 23:18:44,861 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1704 transitions. Word has length 105 [2023-12-19 23:18:44,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:18:44,861 INFO L495 AbstractCegarLoop]: Abstraction has 1004 states and 1704 transitions. [2023-12-19 23:18:44,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:18:44,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1704 transitions. [2023-12-19 23:18:44,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-19 23:18:44,866 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:18:44,866 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:18:44,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-19 23:18:44,866 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:18:44,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:18:44,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1039686097, now seen corresponding path program 1 times [2023-12-19 23:18:44,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:18:44,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363874950] [2023-12-19 23:18:44,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:18:44,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:18:44,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:44,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:18:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:44,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:18:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:44,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:18:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:44,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:18:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:44,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:18:44,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:44,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:18:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:44,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 23:18:44,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:44,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 23:18:44,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:44,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 23:18:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:44,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-19 23:18:44,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:44,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-19 23:18:44,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:44,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 23:18:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:44,949 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 23:18:44,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:18:44,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363874950] [2023-12-19 23:18:44,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363874950] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:18:44,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:18:44,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:18:44,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053332472] [2023-12-19 23:18:44,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:18:44,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:18:44,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:18:44,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:18:44,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:18:44,951 INFO L87 Difference]: Start difference. First operand 1004 states and 1704 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:18:46,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:18:46,519 INFO L93 Difference]: Finished difference Result 2564 states and 4413 transitions. [2023-12-19 23:18:46,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:18:46,519 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 106 [2023-12-19 23:18:46,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:18:46,528 INFO L225 Difference]: With dead ends: 2564 [2023-12-19 23:18:46,529 INFO L226 Difference]: Without dead ends: 1678 [2023-12-19 23:18:46,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:18:46,533 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 1087 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 1505 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 1867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 1505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-19 23:18:46,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1102 Valid, 749 Invalid, 1867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 1505 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-19 23:18:46,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2023-12-19 23:18:46,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 1511. [2023-12-19 23:18:46,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1206 states have (on average 1.6409618573797677) internal successors, (1979), 1211 states have internal predecessors, (1979), 282 states have call successors, (282), 18 states have call predecessors, (282), 22 states have return successors, (313), 281 states have call predecessors, (313), 281 states have call successors, (313) [2023-12-19 23:18:46,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 2574 transitions. [2023-12-19 23:18:46,606 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 2574 transitions. Word has length 106 [2023-12-19 23:18:46,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:18:46,606 INFO L495 AbstractCegarLoop]: Abstraction has 1511 states and 2574 transitions. [2023-12-19 23:18:46,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:18:46,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 2574 transitions. [2023-12-19 23:18:46,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-19 23:18:46,614 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:18:46,614 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:18:46,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-19 23:18:46,614 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:18:46,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:18:46,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1287854142, now seen corresponding path program 1 times [2023-12-19 23:18:46,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:18:46,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095102310] [2023-12-19 23:18:46,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:18:46,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:18:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:46,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:18:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:46,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:18:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:46,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:18:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:46,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:18:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:46,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:18:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:46,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:18:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:46,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 23:18:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:46,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 23:18:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:46,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 23:18:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:46,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 23:18:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:46,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 23:18:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:46,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 23:18:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:46,709 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 23:18:46,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:18:46,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095102310] [2023-12-19 23:18:46,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095102310] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:18:46,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:18:46,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:18:46,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637951443] [2023-12-19 23:18:46,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:18:46,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:18:46,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:18:46,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:18:46,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:18:46,712 INFO L87 Difference]: Start difference. First operand 1511 states and 2574 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:18:48,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:18:48,241 INFO L93 Difference]: Finished difference Result 3710 states and 6438 transitions. [2023-12-19 23:18:48,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:18:48,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2023-12-19 23:18:48,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:18:48,264 INFO L225 Difference]: With dead ends: 3710 [2023-12-19 23:18:48,264 INFO L226 Difference]: Without dead ends: 2445 [2023-12-19 23:18:48,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:18:48,270 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 1085 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1502 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1100 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 1856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 1502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-19 23:18:48,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1100 Valid, 740 Invalid, 1856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 1502 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-19 23:18:48,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2445 states. [2023-12-19 23:18:48,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2445 to 2278. [2023-12-19 23:18:48,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2278 states, 1850 states have (on average 1.6454054054054055) internal successors, (3044), 1855 states have internal predecessors, (3044), 405 states have call successors, (405), 18 states have call predecessors, (405), 22 states have return successors, (452), 404 states have call predecessors, (452), 404 states have call successors, (452) [2023-12-19 23:18:48,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2278 states to 2278 states and 3901 transitions. [2023-12-19 23:18:48,382 INFO L78 Accepts]: Start accepts. Automaton has 2278 states and 3901 transitions. Word has length 107 [2023-12-19 23:18:48,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:18:48,382 INFO L495 AbstractCegarLoop]: Abstraction has 2278 states and 3901 transitions. [2023-12-19 23:18:48,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:18:48,382 INFO L276 IsEmpty]: Start isEmpty. Operand 2278 states and 3901 transitions. [2023-12-19 23:18:48,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-19 23:18:48,390 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:18:48,390 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:18:48,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-19 23:18:48,391 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:18:48,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:18:48,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1093390034, now seen corresponding path program 1 times [2023-12-19 23:18:48,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:18:48,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931390492] [2023-12-19 23:18:48,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:18:48,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:18:48,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:48,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:18:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:48,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:18:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:48,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:18:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:48,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:18:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:48,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:18:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:48,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:18:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:48,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 23:18:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:48,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-19 23:18:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:48,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 23:18:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:48,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 23:18:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:48,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-19 23:18:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:48,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 23:18:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:48,481 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 23:18:48,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:18:48,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931390492] [2023-12-19 23:18:48,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931390492] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:18:48,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:18:48,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:18:48,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989211572] [2023-12-19 23:18:48,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:18:48,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:18:48,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:18:48,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:18:48,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:18:48,482 INFO L87 Difference]: Start difference. First operand 2278 states and 3901 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:18:49,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:18:49,965 INFO L93 Difference]: Finished difference Result 5492 states and 9596 transitions. [2023-12-19 23:18:49,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:18:49,966 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2023-12-19 23:18:49,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:18:49,990 INFO L225 Difference]: With dead ends: 5492 [2023-12-19 23:18:49,990 INFO L226 Difference]: Without dead ends: 3669 [2023-12-19 23:18:49,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:18:50,000 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 1083 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1489 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 1843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 1489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-19 23:18:50,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1098 Valid, 738 Invalid, 1843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 1489 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-19 23:18:50,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3669 states. [2023-12-19 23:18:50,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3669 to 3502. [2023-12-19 23:18:50,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3502 states, 2895 states have (on average 1.6483592400690845) internal successors, (4772), 2900 states have internal predecessors, (4772), 584 states have call successors, (584), 18 states have call predecessors, (584), 22 states have return successors, (657), 583 states have call predecessors, (657), 583 states have call successors, (657) [2023-12-19 23:18:50,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3502 states to 3502 states and 6013 transitions. [2023-12-19 23:18:50,169 INFO L78 Accepts]: Start accepts. Automaton has 3502 states and 6013 transitions. Word has length 108 [2023-12-19 23:18:50,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:18:50,170 INFO L495 AbstractCegarLoop]: Abstraction has 3502 states and 6013 transitions. [2023-12-19 23:18:50,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:18:50,170 INFO L276 IsEmpty]: Start isEmpty. Operand 3502 states and 6013 transitions. [2023-12-19 23:18:50,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-19 23:18:50,179 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:18:50,179 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:18:50,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-19 23:18:50,180 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:18:50,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:18:50,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1110553638, now seen corresponding path program 1 times [2023-12-19 23:18:50,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:18:50,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436853243] [2023-12-19 23:18:50,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:18:50,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:18:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:50,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:18:50,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:50,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:18:50,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:50,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:18:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:50,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:18:50,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:50,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:18:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:50,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:18:50,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:50,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 23:18:50,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:50,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-19 23:18:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:50,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-19 23:18:50,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:50,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-19 23:18:50,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:50,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-19 23:18:50,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:50,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 23:18:50,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:50,271 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 23:18:50,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:18:50,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436853243] [2023-12-19 23:18:50,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436853243] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:18:50,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:18:50,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:18:50,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240606730] [2023-12-19 23:18:50,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:18:50,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:18:50,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:18:50,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:18:50,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:18:50,273 INFO L87 Difference]: Start difference. First operand 3502 states and 6013 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:18:51,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:18:51,645 INFO L93 Difference]: Finished difference Result 8471 states and 14836 transitions. [2023-12-19 23:18:51,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:18:51,646 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2023-12-19 23:18:51,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:18:51,677 INFO L225 Difference]: With dead ends: 8471 [2023-12-19 23:18:51,677 INFO L226 Difference]: Without dead ends: 5727 [2023-12-19 23:18:51,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:18:51,689 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 1081 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 1512 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 1870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 1512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:18:51,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 769 Invalid, 1870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 1512 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-19 23:18:51,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5727 states. [2023-12-19 23:18:51,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5727 to 5560. [2023-12-19 23:18:51,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5560 states, 4577 states have (on average 1.6375355036049815) internal successors, (7495), 4582 states have internal predecessors, (7495), 960 states have call successors, (960), 18 states have call predecessors, (960), 22 states have return successors, (1077), 959 states have call predecessors, (1077), 959 states have call successors, (1077) [2023-12-19 23:18:52,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5560 states to 5560 states and 9532 transitions. [2023-12-19 23:18:52,008 INFO L78 Accepts]: Start accepts. Automaton has 5560 states and 9532 transitions. Word has length 109 [2023-12-19 23:18:52,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:18:52,009 INFO L495 AbstractCegarLoop]: Abstraction has 5560 states and 9532 transitions. [2023-12-19 23:18:52,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:18:52,010 INFO L276 IsEmpty]: Start isEmpty. Operand 5560 states and 9532 transitions. [2023-12-19 23:18:52,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-19 23:18:52,023 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:18:52,023 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:18:52,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-19 23:18:52,023 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:18:52,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:18:52,023 INFO L85 PathProgramCache]: Analyzing trace with hash 656964406, now seen corresponding path program 1 times [2023-12-19 23:18:52,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:18:52,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809641028] [2023-12-19 23:18:52,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:18:52,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:18:52,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:52,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:18:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:52,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:18:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:52,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:18:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:52,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:18:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:52,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:18:52,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:52,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:18:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:52,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-19 23:18:52,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:52,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 23:18:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:52,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 23:18:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:52,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 23:18:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:52,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-19 23:18:52,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:52,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-19 23:18:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:52,120 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 23:18:52,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:18:52,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809641028] [2023-12-19 23:18:52,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809641028] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:18:52,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:18:52,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:18:52,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591705645] [2023-12-19 23:18:52,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:18:52,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:18:52,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:18:52,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:18:52,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:18:52,122 INFO L87 Difference]: Start difference. First operand 5560 states and 9532 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:18:53,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:18:53,591 INFO L93 Difference]: Finished difference Result 13832 states and 24193 transitions. [2023-12-19 23:18:53,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:18:53,592 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2023-12-19 23:18:53,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:18:53,636 INFO L225 Difference]: With dead ends: 13832 [2023-12-19 23:18:53,636 INFO L226 Difference]: Without dead ends: 9416 [2023-12-19 23:18:53,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:18:53,654 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 1079 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1489 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 1851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 1489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:18:53,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 739 Invalid, 1851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 1489 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-19 23:18:53,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9416 states. [2023-12-19 23:18:54,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9416 to 9249. [2023-12-19 23:18:54,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9249 states, 7660 states have (on average 1.635117493472585) internal successors, (12525), 7665 states have internal predecessors, (12525), 1566 states have call successors, (1566), 18 states have call predecessors, (1566), 22 states have return successors, (1761), 1565 states have call predecessors, (1761), 1565 states have call successors, (1761) [2023-12-19 23:18:54,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9249 states to 9249 states and 15852 transitions. [2023-12-19 23:18:54,124 INFO L78 Accepts]: Start accepts. Automaton has 9249 states and 15852 transitions. Word has length 110 [2023-12-19 23:18:54,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:18:54,125 INFO L495 AbstractCegarLoop]: Abstraction has 9249 states and 15852 transitions. [2023-12-19 23:18:54,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:18:54,125 INFO L276 IsEmpty]: Start isEmpty. Operand 9249 states and 15852 transitions. [2023-12-19 23:18:54,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-19 23:18:54,144 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:18:54,144 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:18:54,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-19 23:18:54,144 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:18:54,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:18:54,145 INFO L85 PathProgramCache]: Analyzing trace with hash 388439080, now seen corresponding path program 1 times [2023-12-19 23:18:54,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:18:54,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789673610] [2023-12-19 23:18:54,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:18:54,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:18:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:54,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:18:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:54,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:18:54,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:54,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:18:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:54,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:18:54,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:54,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:18:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:54,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:18:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:54,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 23:18:54,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:54,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 23:18:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:54,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 23:18:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:54,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 23:18:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:54,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-19 23:18:54,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:54,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-19 23:18:54,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:54,237 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 23:18:54,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:18:54,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789673610] [2023-12-19 23:18:54,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789673610] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:18:54,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:18:54,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:18:54,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626172848] [2023-12-19 23:18:54,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:18:54,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:18:54,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:18:54,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:18:54,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:18:54,239 INFO L87 Difference]: Start difference. First operand 9249 states and 15852 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:18:55,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:18:55,765 INFO L93 Difference]: Finished difference Result 24024 states and 41957 transitions. [2023-12-19 23:18:55,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:18:55,766 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2023-12-19 23:18:55,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:18:55,836 INFO L225 Difference]: With dead ends: 24024 [2023-12-19 23:18:55,837 INFO L226 Difference]: Without dead ends: 16376 [2023-12-19 23:18:55,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:18:55,872 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 1077 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 1506 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 1868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 1506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:18:55,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1092 Valid, 759 Invalid, 1868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 1506 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-19 23:18:55,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16376 states. [2023-12-19 23:18:56,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16376 to 16209. [2023-12-19 23:18:56,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16209 states, 13417 states have (on average 1.6261459342625029) internal successors, (21818), 13422 states have internal predecessors, (21818), 2769 states have call successors, (2769), 18 states have call predecessors, (2769), 22 states have return successors, (3108), 2768 states have call predecessors, (3108), 2768 states have call successors, (3108) [2023-12-19 23:18:56,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16209 states to 16209 states and 27695 transitions. [2023-12-19 23:18:56,586 INFO L78 Accepts]: Start accepts. Automaton has 16209 states and 27695 transitions. Word has length 111 [2023-12-19 23:18:56,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:18:56,586 INFO L495 AbstractCegarLoop]: Abstraction has 16209 states and 27695 transitions. [2023-12-19 23:18:56,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:18:56,587 INFO L276 IsEmpty]: Start isEmpty. Operand 16209 states and 27695 transitions. [2023-12-19 23:18:56,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-19 23:18:56,606 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:18:56,606 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:18:56,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-19 23:18:56,607 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:18:56,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:18:56,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1362290345, now seen corresponding path program 1 times [2023-12-19 23:18:56,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:18:56,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277866124] [2023-12-19 23:18:56,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:18:56,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:18:56,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:56,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:18:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:56,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:18:56,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:56,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:18:56,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:56,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:18:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:56,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:18:56,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:56,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:18:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:56,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 23:18:56,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:56,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 23:18:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:56,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 23:18:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:56,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-19 23:18:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:56,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-19 23:18:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:56,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 23:18:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:18:56,844 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 23:18:56,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:18:56,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277866124] [2023-12-19 23:18:56,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277866124] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:18:56,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:18:56,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:18:56,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390100186] [2023-12-19 23:18:56,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:18:56,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:18:56,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:18:56,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:18:56,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:18:56,847 INFO L87 Difference]: Start difference. First operand 16209 states and 27695 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:18:58,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:18:58,722 INFO L93 Difference]: Finished difference Result 42999 states and 74969 transitions. [2023-12-19 23:18:58,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:18:58,722 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 112 [2023-12-19 23:18:58,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:18:58,838 INFO L225 Difference]: With dead ends: 42999 [2023-12-19 23:18:58,838 INFO L226 Difference]: Without dead ends: 29039 [2023-12-19 23:18:58,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:18:58,876 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 1075 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 1856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:18:58,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1090 Valid, 741 Invalid, 1856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-19 23:18:58,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29039 states. [2023-12-19 23:18:59,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29039 to 28872. [2023-12-19 23:18:59,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28872 states, 24041 states have (on average 1.6223950750800715) internal successors, (39004), 24046 states have internal predecessors, (39004), 4808 states have call successors, (4808), 18 states have call predecessors, (4808), 22 states have return successors, (5421), 4807 states have call predecessors, (5421), 4807 states have call successors, (5421) [2023-12-19 23:18:59,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28872 states to 28872 states and 49233 transitions. [2023-12-19 23:18:59,991 INFO L78 Accepts]: Start accepts. Automaton has 28872 states and 49233 transitions. Word has length 112 [2023-12-19 23:18:59,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:18:59,991 INFO L495 AbstractCegarLoop]: Abstraction has 28872 states and 49233 transitions. [2023-12-19 23:18:59,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:18:59,992 INFO L276 IsEmpty]: Start isEmpty. Operand 28872 states and 49233 transitions. [2023-12-19 23:19:00,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-19 23:19:00,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:00,021 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:19:00,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-19 23:19:00,021 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:00,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:00,024 INFO L85 PathProgramCache]: Analyzing trace with hash 2122085098, now seen corresponding path program 1 times [2023-12-19 23:19:00,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:00,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269630284] [2023-12-19 23:19:00,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:00,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:00,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:00,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:00,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:00,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:19:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:00,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:19:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:00,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:19:00,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:00,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-19 23:19:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:00,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 23:19:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:00,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-19 23:19:00,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:00,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 23:19:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:00,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 23:19:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:00,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-19 23:19:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:00,116 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 23:19:00,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:00,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269630284] [2023-12-19 23:19:00,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269630284] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:19:00,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:19:00,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:19:00,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640333393] [2023-12-19 23:19:00,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:19:00,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:19:00,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:00,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:19:00,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:19:00,119 INFO L87 Difference]: Start difference. First operand 28872 states and 49233 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:19:02,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:02,801 INFO L93 Difference]: Finished difference Result 78771 states and 136528 transitions. [2023-12-19 23:19:02,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:19:02,802 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2023-12-19 23:19:02,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:03,040 INFO L225 Difference]: With dead ends: 78771 [2023-12-19 23:19:03,041 INFO L226 Difference]: Without dead ends: 52927 [2023-12-19 23:19:03,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:19:03,207 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 1074 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 1844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:03,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 744 Invalid, 1844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 1480 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-19 23:19:03,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52927 states. [2023-12-19 23:19:05,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52927 to 52760. [2023-12-19 23:19:05,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52760 states, 44214 states have (on average 1.617451485954675) internal successors, (71514), 44219 states have internal predecessors, (71514), 8523 states have call successors, (8523), 18 states have call predecessors, (8523), 22 states have return successors, (9668), 8522 states have call predecessors, (9668), 8522 states have call successors, (9668) [2023-12-19 23:19:05,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52760 states to 52760 states and 89705 transitions. [2023-12-19 23:19:05,488 INFO L78 Accepts]: Start accepts. Automaton has 52760 states and 89705 transitions. Word has length 113 [2023-12-19 23:19:05,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:19:05,489 INFO L495 AbstractCegarLoop]: Abstraction has 52760 states and 89705 transitions. [2023-12-19 23:19:05,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:19:05,489 INFO L276 IsEmpty]: Start isEmpty. Operand 52760 states and 89705 transitions. [2023-12-19 23:19:05,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-19 23:19:05,780 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:05,781 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:19:05,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-19 23:19:05,781 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:05,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:05,781 INFO L85 PathProgramCache]: Analyzing trace with hash -449957353, now seen corresponding path program 1 times [2023-12-19 23:19:05,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:05,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980220238] [2023-12-19 23:19:05,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:05,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:05,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:05,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:05,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:05,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:05,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:19:05,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:05,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:19:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:05,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:19:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:05,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-19 23:19:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:05,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 23:19:05,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:05,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 23:19:05,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:05,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-19 23:19:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:05,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 23:19:05,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:05,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-19 23:19:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:05,889 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 23:19:05,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:05,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980220238] [2023-12-19 23:19:05,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980220238] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:19:05,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:19:05,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:19:05,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443359571] [2023-12-19 23:19:05,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:19:05,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:19:05,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:05,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:19:05,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:19:05,891 INFO L87 Difference]: Start difference. First operand 52760 states and 89705 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:19:09,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:09,000 INFO L93 Difference]: Finished difference Result 98546 states and 171233 transitions. [2023-12-19 23:19:09,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:19:09,001 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2023-12-19 23:19:09,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:09,350 INFO L225 Difference]: With dead ends: 98546 [2023-12-19 23:19:09,351 INFO L226 Difference]: Without dead ends: 98399 [2023-12-19 23:19:09,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:19:09,405 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 1071 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1491 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 1853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 1491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:09,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1086 Valid, 739 Invalid, 1853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 1491 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-19 23:19:09,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98399 states. [2023-12-19 23:19:12,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98399 to 98232. [2023-12-19 23:19:12,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98232 states, 82887 states have (on average 1.6111452941957123) internal successors, (133543), 82892 states have internal predecessors, (133543), 15322 states have call successors, (15322), 18 states have call predecessors, (15322), 22 states have return successors, (17513), 15321 states have call predecessors, (17513), 15321 states have call successors, (17513) [2023-12-19 23:19:12,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98232 states to 98232 states and 166378 transitions. [2023-12-19 23:19:12,897 INFO L78 Accepts]: Start accepts. Automaton has 98232 states and 166378 transitions. Word has length 114 [2023-12-19 23:19:12,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:19:12,897 INFO L495 AbstractCegarLoop]: Abstraction has 98232 states and 166378 transitions. [2023-12-19 23:19:12,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:19:12,897 INFO L276 IsEmpty]: Start isEmpty. Operand 98232 states and 166378 transitions. [2023-12-19 23:19:13,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-19 23:19:13,203 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:13,203 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:19:13,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-19 23:19:13,204 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:13,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:13,204 INFO L85 PathProgramCache]: Analyzing trace with hash 107072585, now seen corresponding path program 1 times [2023-12-19 23:19:13,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:13,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775089091] [2023-12-19 23:19:13,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:13,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:13,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:13,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:13,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:13,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:19:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:13,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:19:13,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:13,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:19:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:13,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 23:19:13,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:13,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 23:19:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:13,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 23:19:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:13,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-19 23:19:13,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:13,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 23:19:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:13,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-19 23:19:13,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:13,428 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 23:19:13,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:13,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775089091] [2023-12-19 23:19:13,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775089091] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:19:13,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:19:13,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 23:19:13,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374621084] [2023-12-19 23:19:13,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:19:13,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 23:19:13,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:13,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 23:19:13,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:19:13,430 INFO L87 Difference]: Start difference. First operand 98232 states and 166378 transitions. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:19:18,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:18,138 INFO L93 Difference]: Finished difference Result 98835 states and 170602 transitions. [2023-12-19 23:19:18,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-19 23:19:18,138 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2023-12-19 23:19:18,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:18,516 INFO L225 Difference]: With dead ends: 98835 [2023-12-19 23:19:18,516 INFO L226 Difference]: Without dead ends: 98695 [2023-12-19 23:19:18,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756 [2023-12-19 23:19:18,554 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 1494 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 4612 mSolverCounterSat, 405 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 5017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 405 IncrementalHoareTripleChecker+Valid, 4612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:18,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1000 Invalid, 5017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [405 Valid, 4612 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-19 23:19:18,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98695 states. [2023-12-19 23:19:21,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98695 to 98374. [2023-12-19 23:19:21,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98374 states, 82997 states have (on average 1.6109859392508163) internal successors, (133707), 83002 states have internal predecessors, (133707), 15342 states have call successors, (15342), 28 states have call predecessors, (15342), 34 states have return successors, (17537), 15343 states have call predecessors, (17537), 15340 states have call successors, (17537) [2023-12-19 23:19:21,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98374 states to 98374 states and 166586 transitions. [2023-12-19 23:19:21,991 INFO L78 Accepts]: Start accepts. Automaton has 98374 states and 166586 transitions. Word has length 115 [2023-12-19 23:19:21,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:19:21,991 INFO L495 AbstractCegarLoop]: Abstraction has 98374 states and 166586 transitions. [2023-12-19 23:19:21,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:19:21,992 INFO L276 IsEmpty]: Start isEmpty. Operand 98374 states and 166586 transitions. [2023-12-19 23:19:22,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-19 23:19:22,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:22,021 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:19:22,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-19 23:19:22,021 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:22,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:22,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1661037705, now seen corresponding path program 1 times [2023-12-19 23:19:22,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:22,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885509910] [2023-12-19 23:19:22,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:22,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:22,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:22,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:22,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:22,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:19:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:22,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:19:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:22,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:19:22,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:22,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 23:19:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:22,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 23:19:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:22,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 23:19:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:22,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-19 23:19:22,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:22,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 23:19:22,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:22,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-19 23:19:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:22,310 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 23:19:22,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:22,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885509910] [2023-12-19 23:19:22,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885509910] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:19:22,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:19:22,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-19 23:19:22,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770341158] [2023-12-19 23:19:22,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:19:22,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-19 23:19:22,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:22,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-19 23:19:22,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2023-12-19 23:19:22,312 INFO L87 Difference]: Start difference. First operand 98374 states and 166586 transitions. Second operand has 14 states, 12 states have (on average 6.166666666666667) internal successors, (74), 9 states have internal predecessors, (74), 7 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2023-12-19 23:19:27,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:27,935 INFO L93 Difference]: Finished difference Result 99423 states and 171560 transitions. [2023-12-19 23:19:27,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-19 23:19:27,937 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.166666666666667) internal successors, (74), 9 states have internal predecessors, (74), 7 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) Word has length 116 [2023-12-19 23:19:27,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:28,447 INFO L225 Difference]: With dead ends: 99423 [2023-12-19 23:19:28,447 INFO L226 Difference]: Without dead ends: 98737 [2023-12-19 23:19:28,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=327, Invalid=1313, Unknown=0, NotChecked=0, Total=1640 [2023-12-19 23:19:28,487 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 1874 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 5298 mSolverCounterSat, 543 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1874 SdHoareTripleChecker+Valid, 1686 SdHoareTripleChecker+Invalid, 5841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 543 IncrementalHoareTripleChecker+Valid, 5298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:28,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1874 Valid, 1686 Invalid, 5841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [543 Valid, 5298 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-19 23:19:28,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98737 states. [2023-12-19 23:19:31,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98737 to 98411. [2023-12-19 23:19:31,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98411 states, 83026 states have (on average 1.610905017705297) internal successors, (133747), 83034 states have internal predecessors, (133747), 15348 states have call successors, (15348), 29 states have call predecessors, (15348), 36 states have return successors, (17547), 15347 states have call predecessors, (17547), 15346 states have call successors, (17547) [2023-12-19 23:19:31,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98411 states to 98411 states and 166642 transitions. [2023-12-19 23:19:31,951 INFO L78 Accepts]: Start accepts. Automaton has 98411 states and 166642 transitions. Word has length 116 [2023-12-19 23:19:31,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:19:31,952 INFO L495 AbstractCegarLoop]: Abstraction has 98411 states and 166642 transitions. [2023-12-19 23:19:31,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.166666666666667) internal successors, (74), 9 states have internal predecessors, (74), 7 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2023-12-19 23:19:31,952 INFO L276 IsEmpty]: Start isEmpty. Operand 98411 states and 166642 transitions. [2023-12-19 23:19:31,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-19 23:19:31,983 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:31,983 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:19:31,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-19 23:19:31,983 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:31,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:31,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1500041599, now seen corresponding path program 1 times [2023-12-19 23:19:31,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:31,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12476195] [2023-12-19 23:19:31,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:31,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:32,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:32,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:32,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:32,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:32,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:19:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:32,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:19:32,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:32,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:19:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:32,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 23:19:32,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:32,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 23:19:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:32,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 23:19:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:32,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 23:19:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:32,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 23:19:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:32,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-19 23:19:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:32,175 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 23:19:32,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:32,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12476195] [2023-12-19 23:19:32,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12476195] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:19:32,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:19:32,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-19 23:19:32,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220079844] [2023-12-19 23:19:32,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:19:32,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 23:19:32,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:32,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 23:19:32,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-19 23:19:32,177 INFO L87 Difference]: Start difference. First operand 98411 states and 166642 transitions. Second operand has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:19:37,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:37,716 INFO L93 Difference]: Finished difference Result 99460 states and 171584 transitions. [2023-12-19 23:19:37,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-19 23:19:37,717 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2023-12-19 23:19:37,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:38,163 INFO L225 Difference]: With dead ends: 99460 [2023-12-19 23:19:38,163 INFO L226 Difference]: Without dead ends: 99392 [2023-12-19 23:19:38,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=279, Invalid=843, Unknown=0, NotChecked=0, Total=1122 [2023-12-19 23:19:38,207 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 1676 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 5017 mSolverCounterSat, 503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1676 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 5520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 5017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:38,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1676 Valid, 1419 Invalid, 5520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 5017 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-19 23:19:38,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99392 states. [2023-12-19 23:19:41,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99392 to 98742. [2023-12-19 23:19:41,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98742 states, 83283 states have (on average 1.610472725526218) internal successors, (134125), 83294 states have internal predecessors, (134125), 15393 states have call successors, (15393), 49 states have call predecessors, (15393), 65 states have return successors, (17610), 15398 states have call predecessors, (17610), 15389 states have call successors, (17610) [2023-12-19 23:19:41,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98742 states to 98742 states and 167128 transitions. [2023-12-19 23:19:41,575 INFO L78 Accepts]: Start accepts. Automaton has 98742 states and 167128 transitions. Word has length 119 [2023-12-19 23:19:41,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:19:41,576 INFO L495 AbstractCegarLoop]: Abstraction has 98742 states and 167128 transitions. [2023-12-19 23:19:41,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:19:41,576 INFO L276 IsEmpty]: Start isEmpty. Operand 98742 states and 167128 transitions. [2023-12-19 23:19:41,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-19 23:19:41,603 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:41,603 INFO L195 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] [2023-12-19 23:19:41,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-19 23:19:41,604 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:41,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:41,604 INFO L85 PathProgramCache]: Analyzing trace with hash -502582694, now seen corresponding path program 1 times [2023-12-19 23:19:41,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:41,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685767557] [2023-12-19 23:19:41,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:41,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:42,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:42,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:42,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:42,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:42,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:42,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:19:42,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:42,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:19:42,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:42,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:19:42,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:42,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 23:19:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:42,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 23:19:42,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:42,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 23:19:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:42,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 23:19:42,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:42,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 23:19:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:42,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-19 23:19:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:42,301 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-19 23:19:42,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:42,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685767557] [2023-12-19 23:19:42,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685767557] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:19:42,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:19:42,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-19 23:19:42,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491746936] [2023-12-19 23:19:42,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:19:42,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-19 23:19:42,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:42,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-19 23:19:42,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2023-12-19 23:19:42,304 INFO L87 Difference]: Start difference. First operand 98742 states and 167128 transitions. Second operand has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (14), 7 states have call predecessors, (14), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2023-12-19 23:19:47,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:47,131 INFO L93 Difference]: Finished difference Result 99655 states and 171881 transitions. [2023-12-19 23:19:47,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-19 23:19:47,131 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (14), 7 states have call predecessors, (14), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 120 [2023-12-19 23:19:47,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:47,648 INFO L225 Difference]: With dead ends: 99655 [2023-12-19 23:19:47,648 INFO L226 Difference]: Without dead ends: 99363 [2023-12-19 23:19:47,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=305, Invalid=1101, Unknown=0, NotChecked=0, Total=1406 [2023-12-19 23:19:47,689 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 1866 mSDsluCounter, 1455 mSDsCounter, 0 mSdLazyCounter, 4564 mSolverCounterSat, 495 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1881 SdHoareTripleChecker+Valid, 1611 SdHoareTripleChecker+Invalid, 5059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 4564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:47,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1881 Valid, 1611 Invalid, 5059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [495 Valid, 4564 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-19 23:19:47,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99363 states. [2023-12-19 23:19:50,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99363 to 98740. [2023-12-19 23:19:50,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98740 states, 83281 states have (on average 1.6104753785377217) internal successors, (134122), 83293 states have internal predecessors, (134122), 15393 states have call successors, (15393), 49 states have call predecessors, (15393), 65 states have return successors, (17608), 15397 states have call predecessors, (17608), 15389 states have call successors, (17608) [2023-12-19 23:19:51,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98740 states to 98740 states and 167123 transitions. [2023-12-19 23:19:51,565 INFO L78 Accepts]: Start accepts. Automaton has 98740 states and 167123 transitions. Word has length 120 [2023-12-19 23:19:51,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:19:51,565 INFO L495 AbstractCegarLoop]: Abstraction has 98740 states and 167123 transitions. [2023-12-19 23:19:51,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (14), 7 states have call predecessors, (14), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2023-12-19 23:19:51,566 INFO L276 IsEmpty]: Start isEmpty. Operand 98740 states and 167123 transitions. [2023-12-19 23:19:51,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-19 23:19:51,603 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:51,603 INFO L195 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] [2023-12-19 23:19:51,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-19 23:19:51,604 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:51,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:51,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1265291554, now seen corresponding path program 2 times [2023-12-19 23:19:51,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:51,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176717602] [2023-12-19 23:19:51,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:51,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:51,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:51,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:51,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:51,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:51,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:51,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:51,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:19:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:51,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:19:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:51,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:19:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:51,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 23:19:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:51,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 23:19:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:51,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 23:19:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:51,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 23:19:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:51,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-19 23:19:51,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:51,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-19 23:19:51,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:51,812 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-19 23:19:51,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:51,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176717602] [2023-12-19 23:19:51,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176717602] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:19:51,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429979160] [2023-12-19 23:19:51,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-19 23:19:51,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:19:51,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:19:51,831 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:19:51,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 23:19:52,078 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-19 23:19:52,078 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-19 23:19:52,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-19 23:19:52,084 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:19:52,312 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-19 23:19:52,312 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 23:19:52,611 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-19 23:19:52,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429979160] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 23:19:52,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 23:19:52,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 9] total 27 [2023-12-19 23:19:52,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676981967] [2023-12-19 23:19:52,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 23:19:52,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-19 23:19:52,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:52,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-19 23:19:52,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2023-12-19 23:19:52,614 INFO L87 Difference]: Start difference. First operand 98740 states and 167123 transitions. Second operand has 27 states, 26 states have (on average 8.576923076923077) internal successors, (223), 19 states have internal predecessors, (223), 7 states have call successors, (40), 11 states have call predecessors, (40), 9 states have return successors, (35), 8 states have call predecessors, (35), 7 states have call successors, (35) [2023-12-19 23:20:06,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:20:06,217 INFO L93 Difference]: Finished difference Result 296611 states and 518521 transitions. [2023-12-19 23:20:06,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-12-19 23:20:06,218 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 8.576923076923077) internal successors, (223), 19 states have internal predecessors, (223), 7 states have call successors, (40), 11 states have call predecessors, (40), 9 states have return successors, (35), 8 states have call predecessors, (35), 7 states have call successors, (35) Word has length 120 [2023-12-19 23:20:06,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:20:07,694 INFO L225 Difference]: With dead ends: 296611 [2023-12-19 23:20:07,695 INFO L226 Difference]: Without dead ends: 296202 [2023-12-19 23:20:07,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1732 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1153, Invalid=5987, Unknown=0, NotChecked=0, Total=7140 [2023-12-19 23:20:07,800 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 5162 mSDsluCounter, 4356 mSDsCounter, 0 mSdLazyCounter, 10256 mSolverCounterSat, 1490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5180 SdHoareTripleChecker+Valid, 4620 SdHoareTripleChecker+Invalid, 11746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1490 IncrementalHoareTripleChecker+Valid, 10256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-12-19 23:20:07,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5180 Valid, 4620 Invalid, 11746 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1490 Valid, 10256 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-12-19 23:20:07,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296202 states. [2023-12-19 23:20:16,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296202 to 197209. [2023-12-19 23:20:16,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197209 states, 166353 states have (on average 1.6106292041622334) internal successors, (267933), 166375 states have internal predecessors, (267933), 30744 states have call successors, (30744), 86 states have call predecessors, (30744), 111 states have return successors, (37339), 30747 states have call predecessors, (37339), 30738 states have call successors, (37339) [2023-12-19 23:20:17,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197209 states to 197209 states and 336016 transitions. [2023-12-19 23:20:17,630 INFO L78 Accepts]: Start accepts. Automaton has 197209 states and 336016 transitions. Word has length 120 [2023-12-19 23:20:17,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:20:17,631 INFO L495 AbstractCegarLoop]: Abstraction has 197209 states and 336016 transitions. [2023-12-19 23:20:17,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 8.576923076923077) internal successors, (223), 19 states have internal predecessors, (223), 7 states have call successors, (40), 11 states have call predecessors, (40), 9 states have return successors, (35), 8 states have call predecessors, (35), 7 states have call successors, (35) [2023-12-19 23:20:17,631 INFO L276 IsEmpty]: Start isEmpty. Operand 197209 states and 336016 transitions. [2023-12-19 23:20:18,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-19 23:20:18,264 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:20:18,264 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-19 23:20:18,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-19 23:20:18,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:20:18,466 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:20:18,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:20:18,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1140322839, now seen corresponding path program 1 times [2023-12-19 23:20:18,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:20:18,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102458983] [2023-12-19 23:20:18,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:20:18,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:20:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:18,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:20:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:18,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:20:18,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:18,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:20:18,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:18,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:20:18,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:18,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:20:18,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:18,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:20:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:18,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-19 23:20:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:18,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:20:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:18,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-19 23:20:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:18,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 23:20:18,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:18,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:20:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:18,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:20:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:18,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 23:20:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:18,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-19 23:20:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:18,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 23:20:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:18,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-19 23:20:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:18,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-19 23:20:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:18,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-19 23:20:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:18,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-19 23:20:18,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:18,794 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-12-19 23:20:18,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:20:18,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102458983] [2023-12-19 23:20:18,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102458983] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:20:18,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:20:18,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-19 23:20:18,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163261000] [2023-12-19 23:20:18,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:20:18,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-19 23:20:18,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:20:18,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-19 23:20:18,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-19 23:20:18,796 INFO L87 Difference]: Start difference. First operand 197209 states and 336016 transitions. Second operand has 11 states, 10 states have (on average 10.6) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-19 23:20:26,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:20:26,876 INFO L93 Difference]: Finished difference Result 199239 states and 345763 transitions. [2023-12-19 23:20:26,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-19 23:20:26,877 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.6) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 168 [2023-12-19 23:20:26,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:20:28,059 INFO L225 Difference]: With dead ends: 199239 [2023-12-19 23:20:28,059 INFO L226 Difference]: Without dead ends: 198499 [2023-12-19 23:20:28,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2023-12-19 23:20:28,155 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 1137 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 3897 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 4183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 3897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:20:28,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1158 Valid, 1142 Invalid, 4183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 3897 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-19 23:20:28,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198499 states. [2023-12-19 23:20:36,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198499 to 197209. [2023-12-19 23:20:36,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197209 states, 166353 states have (on average 1.6105931362824837) internal successors, (267927), 166375 states have internal predecessors, (267927), 30744 states have call successors, (30744), 86 states have call predecessors, (30744), 111 states have return successors, (37339), 30747 states have call predecessors, (37339), 30738 states have call successors, (37339) [2023-12-19 23:20:37,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197209 states to 197209 states and 336010 transitions. [2023-12-19 23:20:37,503 INFO L78 Accepts]: Start accepts. Automaton has 197209 states and 336010 transitions. Word has length 168 [2023-12-19 23:20:37,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:20:37,504 INFO L495 AbstractCegarLoop]: Abstraction has 197209 states and 336010 transitions. [2023-12-19 23:20:37,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.6) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-19 23:20:37,504 INFO L276 IsEmpty]: Start isEmpty. Operand 197209 states and 336010 transitions. [2023-12-19 23:20:37,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-12-19 23:20:37,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:20:37,949 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2023-12-19 23:20:37,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-19 23:20:37,949 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:20:37,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:20:37,949 INFO L85 PathProgramCache]: Analyzing trace with hash -723753131, now seen corresponding path program 1 times [2023-12-19 23:20:37,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:20:37,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736817040] [2023-12-19 23:20:37,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:20:37,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:20:37,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:38,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:20:38,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:38,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:20:38,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:38,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:20:38,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:38,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:20:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:38,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:20:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:38,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:20:38,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:38,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-19 23:20:38,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:38,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:20:38,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:38,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-19 23:20:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:38,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 23:20:38,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:38,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:20:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:38,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:20:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:38,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 23:20:38,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:38,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-19 23:20:38,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:38,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 23:20:38,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:38,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:20:38,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:38,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-19 23:20:38,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:38,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-19 23:20:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:38,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-19 23:20:38,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:38,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-19 23:20:38,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:38,974 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-19 23:20:38,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:20:38,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736817040] [2023-12-19 23:20:38,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736817040] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:20:38,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020509242] [2023-12-19 23:20:38,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:20:38,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:20:38,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:20:38,976 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:20:38,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-19 23:20:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:39,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 1319 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-19 23:20:39,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:20:39,496 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 30 proven. 6 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-19 23:20:39,496 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 23:20:40,011 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-12-19 23:20:40,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020509242] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 23:20:40,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 23:20:40,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 9, 10] total 37 [2023-12-19 23:20:40,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576864971] [2023-12-19 23:20:40,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 23:20:40,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-12-19 23:20:40,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:20:40,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-12-19 23:20:40,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1229, Unknown=0, NotChecked=0, Total=1332 [2023-12-19 23:20:40,015 INFO L87 Difference]: Start difference. First operand 197209 states and 336010 transitions. Second operand has 37 states, 35 states have (on average 8.0) internal successors, (280), 29 states have internal predecessors, (280), 11 states have call successors, (54), 10 states have call predecessors, (54), 15 states have return successors, (52), 14 states have call predecessors, (52), 11 states have call successors, (52) [2023-12-19 23:21:16,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:21:16,576 INFO L93 Difference]: Finished difference Result 299279 states and 519818 transitions. [2023-12-19 23:21:16,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2023-12-19 23:21:16,577 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 35 states have (on average 8.0) internal successors, (280), 29 states have internal predecessors, (280), 11 states have call successors, (54), 10 states have call predecessors, (54), 15 states have return successors, (52), 14 states have call predecessors, (52), 11 states have call successors, (52) Word has length 175 [2023-12-19 23:21:16,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:21:18,023 INFO L225 Difference]: With dead ends: 299279 [2023-12-19 23:21:18,023 INFO L226 Difference]: Without dead ends: 298759 [2023-12-19 23:21:18,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 655 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 246 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22904 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=5819, Invalid=55437, Unknown=0, NotChecked=0, Total=61256 [2023-12-19 23:21:18,162 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 11791 mSDsluCounter, 5819 mSDsCounter, 0 mSdLazyCounter, 38801 mSolverCounterSat, 4469 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11811 SdHoareTripleChecker+Valid, 6085 SdHoareTripleChecker+Invalid, 43270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4469 IncrementalHoareTripleChecker+Valid, 38801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2023-12-19 23:21:18,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11811 Valid, 6085 Invalid, 43270 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4469 Valid, 38801 Invalid, 0 Unknown, 0 Unchecked, 16.8s Time] [2023-12-19 23:21:18,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298759 states. [2023-12-19 23:21:30,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298759 to 293741. [2023-12-19 23:21:31,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293741 states, 247758 states have (on average 1.610870284713309) internal successors, (399106), 247688 states have internal predecessors, (399106), 45773 states have call successors, (45773), 157 states have call predecessors, (45773), 209 states have return successors, (55615), 45895 states have call predecessors, (55615), 45766 states have call successors, (55615) [2023-12-19 23:21:33,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293741 states to 293741 states and 500494 transitions. [2023-12-19 23:21:33,063 INFO L78 Accepts]: Start accepts. Automaton has 293741 states and 500494 transitions. Word has length 175 [2023-12-19 23:21:33,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:21:33,063 INFO L495 AbstractCegarLoop]: Abstraction has 293741 states and 500494 transitions. [2023-12-19 23:21:33,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 35 states have (on average 8.0) internal successors, (280), 29 states have internal predecessors, (280), 11 states have call successors, (54), 10 states have call predecessors, (54), 15 states have return successors, (52), 14 states have call predecessors, (52), 11 states have call successors, (52) [2023-12-19 23:21:33,064 INFO L276 IsEmpty]: Start isEmpty. Operand 293741 states and 500494 transitions. [2023-12-19 23:21:33,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-12-19 23:21:33,711 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:21:33,711 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2023-12-19 23:21:33,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-19 23:21:33,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-12-19 23:21:33,912 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:21:33,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:21:33,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1636905707, now seen corresponding path program 1 times [2023-12-19 23:21:33,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:21:33,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745252939] [2023-12-19 23:21:33,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:21:33,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:21:33,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:21:34,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:21:34,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:21:34,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:21:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:21:34,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:21:34,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:21:34,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-19 23:21:34,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:21:34,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 23:21:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:21:34,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 23:21:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:21:34,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-19 23:21:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:21:34,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:21:34,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:21:34,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-19 23:21:34,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:21:34,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:21:34,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:21:34,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:21:34,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:21:34,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:21:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:21:34,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 23:21:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:21:34,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-19 23:21:34,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:21:34,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 23:21:34,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:21:34,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:21:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:21:34,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-19 23:21:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:21:34,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-19 23:21:34,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:21:34,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-19 23:21:34,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:21:34,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-19 23:21:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:21:34,452 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-19 23:21:34,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:21:34,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745252939] [2023-12-19 23:21:34,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745252939] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:21:34,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090642061] [2023-12-19 23:21:34,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:21:34,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:21:34,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:21:34,458 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:21:34,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-19 23:21:34,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:21:34,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 1320 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 23:21:34,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:21:34,775 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-19 23:21:34,775 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:21:34,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090642061] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:21:34,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:21:34,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-12-19 23:21:34,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918412680] [2023-12-19 23:21:34,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:21:34,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:21:34,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:21:34,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:21:34,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:21:34,777 INFO L87 Difference]: Start difference. First operand 293741 states and 500494 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-19 23:21:45,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:21:45,244 INFO L93 Difference]: Finished difference Result 488807 states and 836098 transitions. [2023-12-19 23:21:45,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:21:45,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 176 [2023-12-19 23:21:45,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:21:47,357 INFO L225 Difference]: With dead ends: 488807 [2023-12-19 23:21:47,357 INFO L226 Difference]: Without dead ends: 293753 [2023-12-19 23:21:47,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-12-19 23:21:47,918 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 6 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:21:47,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1693 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:21:48,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293753 states. [2023-12-19 23:22:01,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293753 to 293743. [2023-12-19 23:22:02,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293743 states, 247759 states have (on average 1.6108678191306876) internal successors, (399107), 247690 states have internal predecessors, (399107), 45773 states have call successors, (45773), 157 states have call predecessors, (45773), 210 states have return successors, (55617), 45895 states have call predecessors, (55617), 45766 states have call successors, (55617) [2023-12-19 23:22:03,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293743 states to 293743 states and 500497 transitions. [2023-12-19 23:22:03,610 INFO L78 Accepts]: Start accepts. Automaton has 293743 states and 500497 transitions. Word has length 176 [2023-12-19 23:22:03,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:22:03,610 INFO L495 AbstractCegarLoop]: Abstraction has 293743 states and 500497 transitions. [2023-12-19 23:22:03,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-19 23:22:03,611 INFO L276 IsEmpty]: Start isEmpty. Operand 293743 states and 500497 transitions. [2023-12-19 23:22:04,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-12-19 23:22:04,603 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:22:04,603 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-19 23:22:04,611 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-19 23:22:04,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-12-19 23:22:04,810 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:22:04,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:22:04,810 INFO L85 PathProgramCache]: Analyzing trace with hash -734238545, now seen corresponding path program 1 times [2023-12-19 23:22:04,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:22:04,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793345106] [2023-12-19 23:22:04,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:22:04,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:22:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:04,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:22:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:04,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:22:04,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:04,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:22:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:04,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:22:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:04,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:22:04,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:04,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:22:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:04,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 23:22:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:05,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-19 23:22:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:05,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:22:05,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:05,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-19 23:22:05,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:05,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:22:05,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:05,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:22:05,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:05,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:22:05,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:05,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 23:22:05,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:05,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-19 23:22:05,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:05,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 23:22:05,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:05,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:22:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:05,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-19 23:22:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:05,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-19 23:22:05,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:05,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-19 23:22:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:05,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-19 23:22:05,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:05,089 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 31 proven. 4 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-19 23:22:05,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:22:05,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793345106] [2023-12-19 23:22:05,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793345106] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:22:05,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259341866] [2023-12-19 23:22:05,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:22:05,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:22:05,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:22:05,093 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:22:05,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-19 23:22:05,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:05,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 1363 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 23:22:05,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:22:05,468 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-12-19 23:22:05,468 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:22:05,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259341866] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:22:05,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:22:05,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2023-12-19 23:22:05,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758819812] [2023-12-19 23:22:05,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:22:05,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:22:05,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:22:05,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:22:05,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2023-12-19 23:22:05,470 INFO L87 Difference]: Start difference. First operand 293743 states and 500497 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 3 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-19 23:22:15,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:22:15,234 INFO L93 Difference]: Finished difference Result 385581 states and 657245 transitions. [2023-12-19 23:22:15,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:22:15,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 3 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 188 [2023-12-19 23:22:15,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:22:16,454 INFO L225 Difference]: With dead ends: 385581 [2023-12-19 23:22:16,455 INFO L226 Difference]: Without dead ends: 290595 [2023-12-19 23:22:16,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2023-12-19 23:22:16,942 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 418 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 23:22:16,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 1140 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 23:22:17,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290595 states. [2023-12-19 23:22:29,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290595 to 290589. [2023-12-19 23:22:30,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290589 states, 245085 states have (on average 1.6111961156333516) internal successors, (394880), 245034 states have internal predecessors, (394880), 45292 states have call successors, (45292), 159 states have call predecessors, (45292), 211 states have return successors, (51874), 45395 states have call predecessors, (51874), 45285 states have call successors, (51874) [2023-12-19 23:22:32,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290589 states to 290589 states and 492046 transitions. [2023-12-19 23:22:32,800 INFO L78 Accepts]: Start accepts. Automaton has 290589 states and 492046 transitions. Word has length 188 [2023-12-19 23:22:32,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:22:32,801 INFO L495 AbstractCegarLoop]: Abstraction has 290589 states and 492046 transitions. [2023-12-19 23:22:32,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 3 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-19 23:22:32,801 INFO L276 IsEmpty]: Start isEmpty. Operand 290589 states and 492046 transitions. [2023-12-19 23:22:33,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-12-19 23:22:33,695 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:22:33,695 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2023-12-19 23:22:33,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-19 23:22:33,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-12-19 23:22:33,904 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:22:33,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:22:33,904 INFO L85 PathProgramCache]: Analyzing trace with hash 2113872094, now seen corresponding path program 1 times [2023-12-19 23:22:33,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:22:33,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971933390] [2023-12-19 23:22:33,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:22:33,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:22:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:34,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:22:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:34,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:22:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:34,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 23:22:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:34,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-19 23:22:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:34,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-19 23:22:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:34,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 23:22:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:34,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 23:22:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:34,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:22:34,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:34,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-19 23:22:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:34,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:22:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:34,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:22:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:34,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:22:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:34,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 23:22:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:34,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-19 23:22:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:34,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 23:22:34,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:34,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:22:34,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:22:34,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-19 23:22:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat