/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_spec1_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 22:44:03,165 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 22:44:03,244 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 22:44:03,250 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 22:44:03,250 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 22:44:03,274 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 22:44:03,275 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 22:44:03,275 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 22:44:03,276 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 22:44:03,277 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 22:44:03,277 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 22:44:03,278 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 22:44:03,279 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 22:44:03,282 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 22:44:03,282 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 22:44:03,283 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 22:44:03,283 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 22:44:03,284 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 22:44:03,284 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 22:44:03,285 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 22:44:03,285 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 22:44:03,286 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 22:44:03,286 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 22:44:03,286 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 22:44:03,286 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 22:44:03,287 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 22:44:03,287 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 22:44:03,287 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 22:44:03,288 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 22:44:03,288 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 22:44:03,289 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 22:44:03,289 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 22:44:03,289 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:44:03,289 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 22:44:03,289 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 22:44:03,289 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 22:44:03,290 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 22:44:03,290 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 22:44:03,290 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 22:44:03,290 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 22:44:03,290 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 22:44:03,290 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 22:44:03,290 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 22:44:03,291 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 22:44:03,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 22:44:03,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 22:44:03,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 22:44:03,545 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 22:44:03,546 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 22:44:03,547 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product12.cil.c [2023-12-15 22:44:04,699 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 22:44:04,997 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 22:44:04,997 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product12.cil.c [2023-12-15 22:44:05,032 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68ab27293/17d1e7cc736a47edaca8223640df3224/FLAG27aa34148 [2023-12-15 22:44:05,048 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68ab27293/17d1e7cc736a47edaca8223640df3224 [2023-12-15 22:44:05,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 22:44:05,051 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 22:44:05,052 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 22:44:05,052 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 22:44:05,060 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 22:44:05,061 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:44:05" (1/1) ... [2023-12-15 22:44:05,062 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d36a5d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05, skipping insertion in model container [2023-12-15 22:44:05,062 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:44:05" (1/1) ... [2023-12-15 22:44:05,143 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 22:44:05,652 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_spec1_product12.cil.c[58861,58874] [2023-12-15 22:44:05,664 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:44:05,678 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 22:44:05,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2023-12-15 22:44:05,687 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [269] [2023-12-15 22:44:05,687 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [318] [2023-12-15 22:44:05,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [598] [2023-12-15 22:44:05,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1671] [2023-12-15 22:44:05,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1906] [2023-12-15 22:44:05,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2312] [2023-12-15 22:44:05,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2329] [2023-12-15 22:44:05,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2695] [2023-12-15 22:44:05,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2704] [2023-12-15 22:44:05,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [2808] [2023-12-15 22:44:05,797 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_spec1_product12.cil.c[58861,58874] [2023-12-15 22:44:05,800 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:44:05,840 INFO L206 MainTranslator]: Completed translation [2023-12-15 22:44:05,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05 WrapperNode [2023-12-15 22:44:05,841 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 22:44:05,843 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 22:44:05,843 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 22:44:05,843 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 22:44:05,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05" (1/1) ... [2023-12-15 22:44:05,887 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05" (1/1) ... [2023-12-15 22:44:05,946 INFO L138 Inliner]: procedures = 122, calls = 174, calls flagged for inlining = 50, calls inlined = 40, statements flattened = 815 [2023-12-15 22:44:05,947 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 22:44:05,947 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 22:44:05,948 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 22:44:05,948 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 22:44:05,972 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05" (1/1) ... [2023-12-15 22:44:05,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05" (1/1) ... [2023-12-15 22:44:05,977 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05" (1/1) ... [2023-12-15 22:44:06,000 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]. [2023-12-15 22:44:06,000 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05" (1/1) ... [2023-12-15 22:44:06,001 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05" (1/1) ... [2023-12-15 22:44:06,020 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05" (1/1) ... [2023-12-15 22:44:06,038 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05" (1/1) ... [2023-12-15 22:44:06,042 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05" (1/1) ... [2023-12-15 22:44:06,045 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05" (1/1) ... [2023-12-15 22:44:06,067 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 22:44:06,068 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 22:44:06,068 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 22:44:06,068 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 22:44:06,069 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05" (1/1) ... [2023-12-15 22:44:06,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:44:06,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:44:06,121 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) [2023-12-15 22:44:06,161 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-15 22:44:06,161 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-15 22:44:06,161 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-15 22:44:06,162 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-15 22:44:06,162 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-15 22:44:06,162 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-15 22:44:06,162 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-15 22:44:06,163 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-15 22:44:06,163 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-15 22:44:06,163 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-15 22:44:06,163 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-15 22:44:06,164 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-15 22:44:06,164 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-15 22:44:06,164 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-15 22:44:06,152 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 [2023-12-15 22:44:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-15 22:44:06,165 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-15 22:44:06,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 22:44:06,168 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-15 22:44:06,168 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-15 22:44:06,169 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-15 22:44:06,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-15 22:44:06,169 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-15 22:44:06,169 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-15 22:44:06,169 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-15 22:44:06,169 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-15 22:44:06,169 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-15 22:44:06,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-15 22:44:06,169 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-15 22:44:06,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-15 22:44:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 22:44:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 22:44:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-15 22:44:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-15 22:44:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-15 22:44:06,170 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-15 22:44:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 22:44:06,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 22:44:06,371 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 22:44:06,373 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 22:44:07,035 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 22:44:07,099 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 22:44:07,100 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 22:44:07,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:44:07 BoogieIcfgContainer [2023-12-15 22:44:07,100 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 22:44:07,102 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 22:44:07,103 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 22:44:07,105 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 22:44:07,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:44:05" (1/3) ... [2023-12-15 22:44:07,106 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10c451e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:44:07, skipping insertion in model container [2023-12-15 22:44:07,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05" (2/3) ... [2023-12-15 22:44:07,107 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10c451e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:44:07, skipping insertion in model container [2023-12-15 22:44:07,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:44:07" (3/3) ... [2023-12-15 22:44:07,108 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product12.cil.c [2023-12-15 22:44:07,124 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 22:44:07,125 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 22:44:07,187 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 22:44:07,193 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;@51a78ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 22:44:07,193 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 22:44:07,199 INFO L276 IsEmpty]: Start isEmpty. Operand has 240 states, 184 states have (on average 1.6195652173913044) internal successors, (298), 188 states have internal predecessors, (298), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-12-15 22:44:07,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-15 22:44:07,215 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:44:07,215 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:44:07,216 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:44:07,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:44:07,220 INFO L85 PathProgramCache]: Analyzing trace with hash 970866355, now seen corresponding path program 1 times [2023-12-15 22:44:07,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:44:07,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30123857] [2023-12-15 22:44:07,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:07,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:44:07,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:07,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:44:07,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:07,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:44:07,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:07,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:44:07,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:07,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:44:07,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:07,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:44:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:07,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:44:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:07,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:44:07,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:07,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 22:44:07,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:07,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-15 22:44:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:07,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-15 22:44:07,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:07,919 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 22:44:07,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:44:07,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30123857] [2023-12-15 22:44:07,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30123857] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:44:07,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012238625] [2023-12-15 22:44:07,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:07,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:44:07,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:44:07,928 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) [2023-12-15 22:44:07,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 22:44:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:08,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 862 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 22:44:08,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:44:08,253 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-15 22:44:08,253 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:44:08,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012238625] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:44:08,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:44:08,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2023-12-15 22:44:08,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581790057] [2023-12-15 22:44:08,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:44:08,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 22:44:08,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:44:08,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 22:44:08,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:44:08,299 INFO L87 Difference]: Start difference. First operand has 240 states, 184 states have (on average 1.6195652173913044) internal successors, (298), 188 states have internal predecessors, (298), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:08,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:44:08,404 INFO L93 Difference]: Finished difference Result 339 states and 522 transitions. [2023-12-15 22:44:08,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 22:44:08,407 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 80 [2023-12-15 22:44:08,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:44:08,420 INFO L225 Difference]: With dead ends: 339 [2023-12-15 22:44:08,420 INFO L226 Difference]: Without dead ends: 237 [2023-12-15 22:44:08,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:44:08,427 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:44:08,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 363 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:44:08,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-12-15 22:44:08,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2023-12-15 22:44:08,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 182 states have (on average 1.598901098901099) internal successors, (291), 185 states have internal predecessors, (291), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-15 22:44:08,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 368 transitions. [2023-12-15 22:44:08,486 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 368 transitions. Word has length 80 [2023-12-15 22:44:08,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:44:08,487 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 368 transitions. [2023-12-15 22:44:08,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:08,488 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 368 transitions. [2023-12-15 22:44:08,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-15 22:44:08,492 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:44:08,492 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:44:08,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-15 22:44:08,700 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 [2023-12-15 22:44:08,700 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:44:08,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:44:08,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1700635070, now seen corresponding path program 1 times [2023-12-15 22:44:08,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:44:08,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291815486] [2023-12-15 22:44:08,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:08,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:44:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:08,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:44:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:08,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:44:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:08,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:44:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:08,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:44:08,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:08,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:44:08,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:08,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:44:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:08,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 22:44:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:08,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:44:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:08,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 22:44:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:08,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 22:44:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:08,994 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 22:44:08,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:44:08,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291815486] [2023-12-15 22:44:08,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291815486] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:44:08,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003381770] [2023-12-15 22:44:08,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:08,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:44:08,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:44:08,998 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) [2023-12-15 22:44:09,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 22:44:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:09,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 22:44:09,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:44:09,317 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-15 22:44:09,317 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:44:09,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003381770] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:44:09,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:44:09,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-12-15 22:44:09,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594436595] [2023-12-15 22:44:09,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:44:09,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:44:09,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:44:09,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:44:09,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:44:09,321 INFO L87 Difference]: Start difference. First operand 237 states and 368 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:09,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:44:09,371 INFO L93 Difference]: Finished difference Result 335 states and 509 transitions. [2023-12-15 22:44:09,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:44:09,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 81 [2023-12-15 22:44:09,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:44:09,375 INFO L225 Difference]: With dead ends: 335 [2023-12-15 22:44:09,375 INFO L226 Difference]: Without dead ends: 239 [2023-12-15 22:44:09,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:44:09,377 INFO L413 NwaCegarLoop]: 360 mSDtfsCounter, 0 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:44:09,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 719 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:44:09,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2023-12-15 22:44:09,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2023-12-15 22:44:09,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 184 states have (on average 1.5923913043478262) internal successors, (293), 187 states have internal predecessors, (293), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-15 22:44:09,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 370 transitions. [2023-12-15 22:44:09,396 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 370 transitions. Word has length 81 [2023-12-15 22:44:09,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:44:09,400 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 370 transitions. [2023-12-15 22:44:09,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:09,404 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 370 transitions. [2023-12-15 22:44:09,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-15 22:44:09,407 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:44:09,408 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:44:09,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 22:44:09,615 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 [2023-12-15 22:44:09,616 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:44:09,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:44:09,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1654689825, now seen corresponding path program 1 times [2023-12-15 22:44:09,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:44:09,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785759818] [2023-12-15 22:44:09,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:09,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:44:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:09,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:44:09,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:09,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:44:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:09,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:44:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:09,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:44:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:09,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:44:09,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:09,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:44:09,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:09,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 22:44:09,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:09,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 22:44:09,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:09,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:44:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:09,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-15 22:44:09,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:09,842 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:44:09,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:44:09,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785759818] [2023-12-15 22:44:09,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785759818] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:44:09,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380812406] [2023-12-15 22:44:09,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:09,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:44:09,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:44:09,845 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) [2023-12-15 22:44:09,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 22:44:10,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:10,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 875 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 22:44:10,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:44:10,132 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-15 22:44:10,132 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:44:10,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380812406] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:44:10,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:44:10,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-12-15 22:44:10,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474795532] [2023-12-15 22:44:10,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:44:10,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:44:10,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:44:10,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:44:10,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:44:10,134 INFO L87 Difference]: Start difference. First operand 239 states and 370 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:10,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:44:10,171 INFO L93 Difference]: Finished difference Result 504 states and 792 transitions. [2023-12-15 22:44:10,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:44:10,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 86 [2023-12-15 22:44:10,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:44:10,174 INFO L225 Difference]: With dead ends: 504 [2023-12-15 22:44:10,174 INFO L226 Difference]: Without dead ends: 287 [2023-12-15 22:44:10,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:44:10,177 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 95 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:44:10,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 689 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:44:10,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-12-15 22:44:10,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 282. [2023-12-15 22:44:10,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 216 states have (on average 1.6018518518518519) internal successors, (346), 219 states have internal predecessors, (346), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-12-15 22:44:10,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 445 transitions. [2023-12-15 22:44:10,196 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 445 transitions. Word has length 86 [2023-12-15 22:44:10,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:44:10,197 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 445 transitions. [2023-12-15 22:44:10,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:10,197 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 445 transitions. [2023-12-15 22:44:10,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-15 22:44:10,199 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:44:10,199 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:44:10,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 22:44:10,406 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 [2023-12-15 22:44:10,407 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:44:10,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:44:10,407 INFO L85 PathProgramCache]: Analyzing trace with hash -146773582, now seen corresponding path program 1 times [2023-12-15 22:44:10,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:44:10,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655446777] [2023-12-15 22:44:10,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:10,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:44:10,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:10,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:44:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:10,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:44:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:10,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:44:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:10,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:44:10,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:10,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:44:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:10,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:44:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:10,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:44:10,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:10,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-15 22:44:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:10,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-15 22:44:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:10,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 22:44:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:10,572 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:44:10,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:44:10,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655446777] [2023-12-15 22:44:10,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655446777] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:44:10,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866743421] [2023-12-15 22:44:10,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:10,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:44:10,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:44:10,574 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) [2023-12-15 22:44:10,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 22:44:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:10,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 880 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-15 22:44:10,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:44:10,873 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-15 22:44:10,874 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:44:10,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866743421] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:44:10,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:44:10,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-12-15 22:44:10,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550482775] [2023-12-15 22:44:10,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:44:10,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:44:10,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:44:10,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:44:10,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-15 22:44:10,876 INFO L87 Difference]: Start difference. First operand 282 states and 445 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-15 22:44:10,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:44:10,969 INFO L93 Difference]: Finished difference Result 559 states and 884 transitions. [2023-12-15 22:44:10,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:44:10,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 87 [2023-12-15 22:44:10,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:44:10,973 INFO L225 Difference]: With dead ends: 559 [2023-12-15 22:44:10,973 INFO L226 Difference]: Without dead ends: 284 [2023-12-15 22:44:10,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:44:10,979 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 8 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1393 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:44:10,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1393 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:44:10,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-12-15 22:44:11,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 284. [2023-12-15 22:44:11,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 217 states have (on average 1.599078341013825) internal successors, (347), 221 states have internal predecessors, (347), 50 states have call successors, (50), 15 states have call predecessors, (50), 16 states have return successors, (51), 49 states have call predecessors, (51), 49 states have call successors, (51) [2023-12-15 22:44:11,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 448 transitions. [2023-12-15 22:44:11,015 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 448 transitions. Word has length 87 [2023-12-15 22:44:11,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:44:11,015 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 448 transitions. [2023-12-15 22:44:11,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-15 22:44:11,015 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 448 transitions. [2023-12-15 22:44:11,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-15 22:44:11,020 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:44:11,020 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:44:11,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 22:44:11,228 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 [2023-12-15 22:44:11,228 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:44:11,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:44:11,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1521274144, now seen corresponding path program 1 times [2023-12-15 22:44:11,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:44:11,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674555266] [2023-12-15 22:44:11,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:11,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:44:11,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:11,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:44:11,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:11,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:44:11,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:11,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:44:11,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:11,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:44:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:11,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-15 22:44:11,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:11,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 22:44:11,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:11,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-15 22:44:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:11,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-15 22:44:11,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:11,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 22:44:11,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:11,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 22:44:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:11,491 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-15 22:44:11,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:44:11,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674555266] [2023-12-15 22:44:11,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674555266] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:44:11,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700178825] [2023-12-15 22:44:11,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:11,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:44:11,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:44:11,499 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) [2023-12-15 22:44:11,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 22:44:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:11,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-15 22:44:11,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:44:11,786 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-15 22:44:11,786 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:44:11,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700178825] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:44:11,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:44:11,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2023-12-15 22:44:11,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951478301] [2023-12-15 22:44:11,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:44:11,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:44:11,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:44:11,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:44:11,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-12-15 22:44:11,788 INFO L87 Difference]: Start difference. First operand 284 states and 448 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-15 22:44:11,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:44:11,886 INFO L93 Difference]: Finished difference Result 561 states and 889 transitions. [2023-12-15 22:44:11,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:44:11,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 88 [2023-12-15 22:44:11,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:44:11,890 INFO L225 Difference]: With dead ends: 561 [2023-12-15 22:44:11,890 INFO L226 Difference]: Without dead ends: 286 [2023-12-15 22:44:11,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-12-15 22:44:11,892 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 8 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1379 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:44:11,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1379 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:44:11,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-12-15 22:44:11,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2023-12-15 22:44:11,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 218 states have (on average 1.5963302752293578) internal successors, (348), 223 states have internal predecessors, (348), 50 states have call successors, (50), 15 states have call predecessors, (50), 17 states have return successors, (56), 49 states have call predecessors, (56), 49 states have call successors, (56) [2023-12-15 22:44:11,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 454 transitions. [2023-12-15 22:44:11,916 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 454 transitions. Word has length 88 [2023-12-15 22:44:11,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:44:11,916 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 454 transitions. [2023-12-15 22:44:11,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-15 22:44:11,917 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 454 transitions. [2023-12-15 22:44:11,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-15 22:44:11,920 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:44:11,921 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:44:11,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-15 22:44:12,128 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 [2023-12-15 22:44:12,129 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:44:12,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:44:12,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1377082873, now seen corresponding path program 1 times [2023-12-15 22:44:12,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:44:12,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168781911] [2023-12-15 22:44:12,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:12,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:44:12,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:12,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:44:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:12,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:44:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:12,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:44:12,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:12,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:44:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:12,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:44:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:12,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 22:44:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:12,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-15 22:44:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:12,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-15 22:44:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:12,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 22:44:12,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:12,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 22:44:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:12,302 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:44:12,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:44:12,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168781911] [2023-12-15 22:44:12,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168781911] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:44:12,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:44:12,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 22:44:12,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807322189] [2023-12-15 22:44:12,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:44:12,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 22:44:12,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:44:12,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 22:44:12,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:44:12,306 INFO L87 Difference]: Start difference. First operand 286 states and 454 transitions. Second operand has 8 states, 7 states have (on average 8.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-15 22:44:13,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:44:13,426 INFO L93 Difference]: Finished difference Result 598 states and 956 transitions. [2023-12-15 22:44:13,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:44:13,427 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 89 [2023-12-15 22:44:13,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:44:13,430 INFO L225 Difference]: With dead ends: 598 [2023-12-15 22:44:13,430 INFO L226 Difference]: Without dead ends: 331 [2023-12-15 22:44:13,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-12-15 22:44:13,432 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 554 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 1575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:44:13,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 812 Invalid, 1575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-15 22:44:13,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2023-12-15 22:44:13,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 286. [2023-12-15 22:44:13,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 218 states have (on average 1.5963302752293578) internal successors, (348), 223 states have internal predecessors, (348), 50 states have call successors, (50), 15 states have call predecessors, (50), 17 states have return successors, (55), 49 states have call predecessors, (55), 49 states have call successors, (55) [2023-12-15 22:44:13,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 453 transitions. [2023-12-15 22:44:13,459 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 453 transitions. Word has length 89 [2023-12-15 22:44:13,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:44:13,459 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 453 transitions. [2023-12-15 22:44:13,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-15 22:44:13,459 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 453 transitions. [2023-12-15 22:44:13,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-15 22:44:13,461 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:44:13,461 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] [2023-12-15 22:44:13,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 22:44:13,462 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:44:13,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:44:13,462 INFO L85 PathProgramCache]: Analyzing trace with hash -86661997, now seen corresponding path program 2 times [2023-12-15 22:44:13,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:44:13,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82378343] [2023-12-15 22:44:13,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:13,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:44:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:13,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:44:13,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:13,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:44:13,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:13,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:44:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:13,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:44:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:13,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:44:13,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:13,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 22:44:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:13,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 22:44:13,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:13,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 22:44:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:13,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 22:44:13,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:13,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-15 22:44:13,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:13,635 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:44:13,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:44:13,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82378343] [2023-12-15 22:44:13,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82378343] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:44:13,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:44:13,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 22:44:13,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622303630] [2023-12-15 22:44:13,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:44:13,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 22:44:13,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:44:13,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 22:44:13,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:44:13,637 INFO L87 Difference]: Start difference. First operand 286 states and 453 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-15 22:44:14,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:44:14,662 INFO L93 Difference]: Finished difference Result 600 states and 959 transitions. [2023-12-15 22:44:14,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:44:14,662 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 90 [2023-12-15 22:44:14,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:44:14,665 INFO L225 Difference]: With dead ends: 600 [2023-12-15 22:44:14,665 INFO L226 Difference]: Without dead ends: 333 [2023-12-15 22:44:14,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-12-15 22:44:14,666 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 550 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1426 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 1589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 22:44:14,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 812 Invalid, 1589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1426 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 22:44:14,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2023-12-15 22:44:14,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 288. [2023-12-15 22:44:14,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 219 states have (on average 1.5936073059360731) internal successors, (349), 225 states have internal predecessors, (349), 50 states have call successors, (50), 15 states have call predecessors, (50), 18 states have return successors, (57), 49 states have call predecessors, (57), 49 states have call successors, (57) [2023-12-15 22:44:14,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 456 transitions. [2023-12-15 22:44:14,683 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 456 transitions. Word has length 90 [2023-12-15 22:44:14,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:44:14,683 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 456 transitions. [2023-12-15 22:44:14,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-15 22:44:14,684 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 456 transitions. [2023-12-15 22:44:14,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 22:44:14,685 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:44:14,685 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:44:14,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 22:44:14,686 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:44:14,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:44:14,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1631538356, now seen corresponding path program 1 times [2023-12-15 22:44:14,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:44:14,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625217936] [2023-12-15 22:44:14,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:14,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:44:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:14,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:44:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:14,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:44:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:14,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:44:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:14,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:44:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:14,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:44:14,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:14,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:44:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:14,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:44:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:14,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-15 22:44:14,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:14,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 22:44:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:14,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 22:44:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:14,860 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-15 22:44:14,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:44:14,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625217936] [2023-12-15 22:44:14,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625217936] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:44:14,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:44:14,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-15 22:44:14,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712874281] [2023-12-15 22:44:14,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:44:14,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-15 22:44:14,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:44:14,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-15 22:44:14,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-12-15 22:44:14,862 INFO L87 Difference]: Start difference. First operand 288 states and 456 transitions. Second operand has 11 states, 10 states have (on average 6.1) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-12-15 22:44:16,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:44:16,291 INFO L93 Difference]: Finished difference Result 598 states and 954 transitions. [2023-12-15 22:44:16,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-15 22:44:16,292 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 91 [2023-12-15 22:44:16,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:44:16,295 INFO L225 Difference]: With dead ends: 598 [2023-12-15 22:44:16,295 INFO L226 Difference]: Without dead ends: 333 [2023-12-15 22:44:16,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2023-12-15 22:44:16,298 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 559 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 2398 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 2566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 2398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:44:16,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 1163 Invalid, 2566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 2398 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 22:44:16,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2023-12-15 22:44:16,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 288. [2023-12-15 22:44:16,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 219 states have (on average 1.5936073059360731) internal successors, (349), 225 states have internal predecessors, (349), 50 states have call successors, (50), 15 states have call predecessors, (50), 18 states have return successors, (56), 49 states have call predecessors, (56), 49 states have call successors, (56) [2023-12-15 22:44:16,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 455 transitions. [2023-12-15 22:44:16,320 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 455 transitions. Word has length 91 [2023-12-15 22:44:16,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:44:16,321 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 455 transitions. [2023-12-15 22:44:16,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-12-15 22:44:16,321 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 455 transitions. [2023-12-15 22:44:16,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-15 22:44:16,323 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:44:16,323 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] [2023-12-15 22:44:16,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 22:44:16,324 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:44:16,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:44:16,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1057343041, now seen corresponding path program 2 times [2023-12-15 22:44:16,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:44:16,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816194908] [2023-12-15 22:44:16,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:16,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:44:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:16,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:44:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:16,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:44:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:16,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:44:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:16,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:44:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:16,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:44:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:16,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:44:16,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:16,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-15 22:44:16,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:16,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 22:44:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:16,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 22:44:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:16,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 22:44:16,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:16,511 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-15 22:44:16,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:44:16,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816194908] [2023-12-15 22:44:16,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816194908] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:44:16,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:44:16,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-15 22:44:16,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083599858] [2023-12-15 22:44:16,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:44:16,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-15 22:44:16,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:44:16,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-15 22:44:16,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-12-15 22:44:16,514 INFO L87 Difference]: Start difference. First operand 288 states and 455 transitions. Second operand has 11 states, 10 states have (on average 6.2) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-12-15 22:44:17,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:44:17,936 INFO L93 Difference]: Finished difference Result 600 states and 960 transitions. [2023-12-15 22:44:17,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-15 22:44:17,937 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 92 [2023-12-15 22:44:17,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:44:17,939 INFO L225 Difference]: With dead ends: 600 [2023-12-15 22:44:17,939 INFO L226 Difference]: Without dead ends: 335 [2023-12-15 22:44:17,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2023-12-15 22:44:17,941 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 555 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 2432 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 2598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 2432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:44:17,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 1163 Invalid, 2598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 2432 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 22:44:17,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2023-12-15 22:44:17,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 290. [2023-12-15 22:44:17,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 220 states have (on average 1.5909090909090908) internal successors, (350), 227 states have internal predecessors, (350), 50 states have call successors, (50), 15 states have call predecessors, (50), 19 states have return successors, (61), 49 states have call predecessors, (61), 49 states have call successors, (61) [2023-12-15 22:44:17,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 461 transitions. [2023-12-15 22:44:17,956 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 461 transitions. Word has length 92 [2023-12-15 22:44:17,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:44:17,956 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 461 transitions. [2023-12-15 22:44:17,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-12-15 22:44:17,957 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 461 transitions. [2023-12-15 22:44:17,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-15 22:44:17,958 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:44:17,958 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:44:17,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 22:44:17,959 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:44:17,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:44:17,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1474889423, now seen corresponding path program 1 times [2023-12-15 22:44:17,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:44:17,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267175634] [2023-12-15 22:44:17,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:17,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:44:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:18,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:44:18,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:18,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:44:18,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:18,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:44:18,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:18,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:44:18,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:18,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:44:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:18,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:44:18,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:18,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:44:18,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:18,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-15 22:44:18,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:18,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-15 22:44:18,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:18,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-15 22:44:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:18,057 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:44:18,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:44:18,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267175634] [2023-12-15 22:44:18,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267175634] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:44:18,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635099074] [2023-12-15 22:44:18,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:18,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:44:18,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:44:18,059 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) [2023-12-15 22:44:18,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 22:44:18,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:18,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 22:44:18,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:44:18,310 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:44:18,310 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:44:18,372 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:44:18,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635099074] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:44:18,373 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:44:18,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2023-12-15 22:44:18,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355937947] [2023-12-15 22:44:18,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:44:18,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 22:44:18,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:44:18,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 22:44:18,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:44:18,376 INFO L87 Difference]: Start difference. First operand 290 states and 461 transitions. Second operand has 10 states, 10 states have (on average 8.2) internal successors, (82), 7 states have internal predecessors, (82), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:44:19,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:44:19,484 INFO L93 Difference]: Finished difference Result 741 states and 1245 transitions. [2023-12-15 22:44:19,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 22:44:19,485 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 7 states have internal predecessors, (82), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 93 [2023-12-15 22:44:19,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:44:19,488 INFO L225 Difference]: With dead ends: 741 [2023-12-15 22:44:19,488 INFO L226 Difference]: Without dead ends: 645 [2023-12-15 22:44:19,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-12-15 22:44:19,490 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 953 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 1251 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 1530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 1251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:44:19,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 1036 Invalid, 1530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 1251 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-15 22:44:19,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2023-12-15 22:44:19,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 585. [2023-12-15 22:44:19,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 451 states have (on average 1.6407982261640799) internal successors, (740), 458 states have internal predecessors, (740), 114 states have call successors, (114), 15 states have call predecessors, (114), 19 states have return successors, (135), 113 states have call predecessors, (135), 113 states have call successors, (135) [2023-12-15 22:44:19,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 989 transitions. [2023-12-15 22:44:19,516 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 989 transitions. Word has length 93 [2023-12-15 22:44:19,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:44:19,517 INFO L495 AbstractCegarLoop]: Abstraction has 585 states and 989 transitions. [2023-12-15 22:44:19,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 7 states have internal predecessors, (82), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:44:19,517 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 989 transitions. [2023-12-15 22:44:19,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-15 22:44:19,520 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:44:19,520 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:44:19,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-15 22:44:19,727 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 [2023-12-15 22:44:19,727 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:44:19,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:44:19,728 INFO L85 PathProgramCache]: Analyzing trace with hash 991488270, now seen corresponding path program 1 times [2023-12-15 22:44:19,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:44:19,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022375006] [2023-12-15 22:44:19,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:19,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:44:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:19,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:44:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:19,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:44:19,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:19,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:44:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:19,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:44:19,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:19,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:44:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:19,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:44:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:19,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-15 22:44:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:19,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:44:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:19,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 22:44:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:19,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 22:44:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:19,830 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:44:19,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:44:19,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022375006] [2023-12-15 22:44:19,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022375006] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:44:19,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:44:19,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:44:19,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642231363] [2023-12-15 22:44:19,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:44:19,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:44:19,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:44:19,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:44:19,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:44:19,832 INFO L87 Difference]: Start difference. First operand 585 states and 989 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:20,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:44:20,706 INFO L93 Difference]: Finished difference Result 1452 states and 2514 transitions. [2023-12-15 22:44:20,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:44:20,706 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 99 [2023-12-15 22:44:20,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:44:20,712 INFO L225 Difference]: With dead ends: 1452 [2023-12-15 22:44:20,712 INFO L226 Difference]: Without dead ends: 927 [2023-12-15 22:44:20,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:44:20,716 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 637 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 22:44:20,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 592 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 22:44:20,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2023-12-15 22:44:20,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 877. [2023-12-15 22:44:20,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 679 states have (on average 1.6450662739322532) internal successors, (1117), 686 states have internal predecessors, (1117), 178 states have call successors, (178), 15 states have call predecessors, (178), 19 states have return successors, (209), 177 states have call predecessors, (209), 177 states have call successors, (209) [2023-12-15 22:44:20,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1504 transitions. [2023-12-15 22:44:20,778 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1504 transitions. Word has length 99 [2023-12-15 22:44:20,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:44:20,779 INFO L495 AbstractCegarLoop]: Abstraction has 877 states and 1504 transitions. [2023-12-15 22:44:20,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:20,779 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1504 transitions. [2023-12-15 22:44:20,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-15 22:44:20,784 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:44:20,784 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:44:20,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 22:44:20,785 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:44:20,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:44:20,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1694428418, now seen corresponding path program 1 times [2023-12-15 22:44:20,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:44:20,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52626008] [2023-12-15 22:44:20,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:20,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:44:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:20,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:44:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:20,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:44:20,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:20,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:44:20,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:20,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:44:20,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:20,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:44:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:20,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:44:20,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:20,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 22:44:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:20,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-15 22:44:20,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:20,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-15 22:44:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:20,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 22:44:20,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:20,873 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:44:20,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:44:20,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52626008] [2023-12-15 22:44:20,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52626008] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:44:20,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:44:20,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:44:20,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751475179] [2023-12-15 22:44:20,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:44:20,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:44:20,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:44:20,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:44:20,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:44:20,875 INFO L87 Difference]: Start difference. First operand 877 states and 1504 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:21,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:44:21,629 INFO L93 Difference]: Finished difference Result 2149 states and 3741 transitions. [2023-12-15 22:44:21,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:44:21,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 100 [2023-12-15 22:44:21,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:44:21,637 INFO L225 Difference]: With dead ends: 2149 [2023-12-15 22:44:21,637 INFO L226 Difference]: Without dead ends: 1382 [2023-12-15 22:44:21,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:44:21,641 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 635 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 22:44:21,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 571 Invalid, 986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 22:44:21,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2023-12-15 22:44:21,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1332. [2023-12-15 22:44:21,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 1039 states have (on average 1.6467757459095285) internal successors, (1711), 1046 states have internal predecessors, (1711), 273 states have call successors, (273), 15 states have call predecessors, (273), 19 states have return successors, (304), 272 states have call predecessors, (304), 272 states have call successors, (304) [2023-12-15 22:44:21,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 2288 transitions. [2023-12-15 22:44:21,700 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 2288 transitions. Word has length 100 [2023-12-15 22:44:21,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:44:21,701 INFO L495 AbstractCegarLoop]: Abstraction has 1332 states and 2288 transitions. [2023-12-15 22:44:21,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:21,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 2288 transitions. [2023-12-15 22:44:21,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-15 22:44:21,708 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:44:21,708 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:44:21,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 22:44:21,708 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:44:21,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:44:21,709 INFO L85 PathProgramCache]: Analyzing trace with hash -361818000, now seen corresponding path program 1 times [2023-12-15 22:44:21,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:44:21,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466172954] [2023-12-15 22:44:21,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:21,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:44:21,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:21,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:44:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:21,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:44:21,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:21,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:44:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:21,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:44:21,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:21,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:44:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:21,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:44:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:21,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-15 22:44:21,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:21,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 22:44:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:21,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 22:44:21,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:21,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-15 22:44:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:21,807 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:44:21,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:44:21,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466172954] [2023-12-15 22:44:21,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466172954] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:44:21,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:44:21,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:44:21,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691926976] [2023-12-15 22:44:21,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:44:21,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:44:21,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:44:21,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:44:21,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:44:21,810 INFO L87 Difference]: Start difference. First operand 1332 states and 2288 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:22,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:44:22,591 INFO L93 Difference]: Finished difference Result 3167 states and 5553 transitions. [2023-12-15 22:44:22,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:44:22,591 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2023-12-15 22:44:22,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:44:22,607 INFO L225 Difference]: With dead ends: 3167 [2023-12-15 22:44:22,607 INFO L226 Difference]: Without dead ends: 2065 [2023-12-15 22:44:22,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:44:22,612 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 633 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:44:22,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 570 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 22:44:22,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2065 states. [2023-12-15 22:44:22,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2065 to 2015. [2023-12-15 22:44:22,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2015 states, 1599 states have (on average 1.6491557223264541) internal successors, (2637), 1606 states have internal predecessors, (2637), 396 states have call successors, (396), 15 states have call predecessors, (396), 19 states have return successors, (443), 395 states have call predecessors, (443), 395 states have call successors, (443) [2023-12-15 22:44:22,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2015 states to 2015 states and 3476 transitions. [2023-12-15 22:44:22,701 INFO L78 Accepts]: Start accepts. Automaton has 2015 states and 3476 transitions. Word has length 101 [2023-12-15 22:44:22,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:44:22,701 INFO L495 AbstractCegarLoop]: Abstraction has 2015 states and 3476 transitions. [2023-12-15 22:44:22,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:22,701 INFO L276 IsEmpty]: Start isEmpty. Operand 2015 states and 3476 transitions. [2023-12-15 22:44:22,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-15 22:44:22,709 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:44:22,709 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:44:22,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 22:44:22,709 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:44:22,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:44:22,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1761255709, now seen corresponding path program 1 times [2023-12-15 22:44:22,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:44:22,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103589650] [2023-12-15 22:44:22,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:22,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:44:22,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:22,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:44:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:22,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:44:22,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:22,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:44:22,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:22,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:44:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:22,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:44:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:22,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:44:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:22,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 22:44:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:22,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 22:44:22,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:22,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 22:44:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:22,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-15 22:44:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:22,786 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:44:22,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:44:22,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103589650] [2023-12-15 22:44:22,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103589650] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:44:22,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:44:22,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:44:22,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526241930] [2023-12-15 22:44:22,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:44:22,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:44:22,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:44:22,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:44:22,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:44:22,788 INFO L87 Difference]: Start difference. First operand 2015 states and 3476 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:23,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:44:23,542 INFO L93 Difference]: Finished difference Result 4737 states and 8358 transitions. [2023-12-15 22:44:23,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:44:23,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 102 [2023-12-15 22:44:23,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:44:23,560 INFO L225 Difference]: With dead ends: 4737 [2023-12-15 22:44:23,560 INFO L226 Difference]: Without dead ends: 3149 [2023-12-15 22:44:23,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:44:23,568 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 631 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 22:44:23,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 571 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 22:44:23,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3149 states. [2023-12-15 22:44:23,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3149 to 3099. [2023-12-15 22:44:23,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3099 states, 2504 states have (on average 1.65055910543131) internal successors, (4133), 2511 states have internal predecessors, (4133), 575 states have call successors, (575), 15 states have call predecessors, (575), 19 states have return successors, (648), 574 states have call predecessors, (648), 574 states have call successors, (648) [2023-12-15 22:44:23,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3099 states to 3099 states and 5356 transitions. [2023-12-15 22:44:23,746 INFO L78 Accepts]: Start accepts. Automaton has 3099 states and 5356 transitions. Word has length 102 [2023-12-15 22:44:23,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:44:23,747 INFO L495 AbstractCegarLoop]: Abstraction has 3099 states and 5356 transitions. [2023-12-15 22:44:23,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:23,747 INFO L276 IsEmpty]: Start isEmpty. Operand 3099 states and 5356 transitions. [2023-12-15 22:44:23,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-15 22:44:23,756 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:44:23,757 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:44:23,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 22:44:23,757 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:44:23,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:44:23,757 INFO L85 PathProgramCache]: Analyzing trace with hash 65162476, now seen corresponding path program 1 times [2023-12-15 22:44:23,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:44:23,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735814417] [2023-12-15 22:44:23,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:23,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:44:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:23,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:44:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:23,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:44:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:23,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:44:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:23,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:44:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:23,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:44:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:23,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:44:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:23,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-15 22:44:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:23,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 22:44:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:23,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 22:44:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:23,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 22:44:23,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:23,831 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:44:23,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:44:23,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735814417] [2023-12-15 22:44:23,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735814417] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:44:23,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:44:23,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:44:23,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970583468] [2023-12-15 22:44:23,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:44:23,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:44:23,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:44:23,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:44:23,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:44:23,833 INFO L87 Difference]: Start difference. First operand 3099 states and 5356 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:24,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:44:24,682 INFO L93 Difference]: Finished difference Result 7568 states and 13370 transitions. [2023-12-15 22:44:24,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:44:24,683 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 103 [2023-12-15 22:44:24,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:44:24,710 INFO L225 Difference]: With dead ends: 7568 [2023-12-15 22:44:24,710 INFO L226 Difference]: Without dead ends: 5119 [2023-12-15 22:44:24,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:44:24,721 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 629 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:44:24,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 589 Invalid, 1001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 22:44:24,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5119 states. [2023-12-15 22:44:24,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5119 to 5069. [2023-12-15 22:44:24,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5069 states, 4098 states have (on average 1.6408003904343582) internal successors, (6724), 4105 states have internal predecessors, (6724), 951 states have call successors, (951), 15 states have call predecessors, (951), 19 states have return successors, (1068), 950 states have call predecessors, (1068), 950 states have call successors, (1068) [2023-12-15 22:44:24,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5069 states to 5069 states and 8743 transitions. [2023-12-15 22:44:24,958 INFO L78 Accepts]: Start accepts. Automaton has 5069 states and 8743 transitions. Word has length 103 [2023-12-15 22:44:24,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:44:24,959 INFO L495 AbstractCegarLoop]: Abstraction has 5069 states and 8743 transitions. [2023-12-15 22:44:24,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:24,959 INFO L276 IsEmpty]: Start isEmpty. Operand 5069 states and 8743 transitions. [2023-12-15 22:44:24,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-15 22:44:24,972 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:44:24,972 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:44:24,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 22:44:24,973 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:44:24,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:44:24,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1615169127, now seen corresponding path program 1 times [2023-12-15 22:44:24,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:44:24,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493308271] [2023-12-15 22:44:24,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:24,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:44:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:25,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:44:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:25,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:44:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:25,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:44:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:25,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:44:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:25,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:44:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:25,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:44:25,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:25,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 22:44:25,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:25,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 22:44:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:25,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 22:44:25,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:25,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-15 22:44:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:25,051 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:44:25,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:44:25,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493308271] [2023-12-15 22:44:25,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493308271] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:44:25,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:44:25,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:44:25,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727899332] [2023-12-15 22:44:25,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:44:25,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:44:25,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:44:25,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:44:25,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:44:25,053 INFO L87 Difference]: Start difference. First operand 5069 states and 8743 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:26,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:44:26,043 INFO L93 Difference]: Finished difference Result 12549 states and 22118 transitions. [2023-12-15 22:44:26,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:44:26,044 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 104 [2023-12-15 22:44:26,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:44:26,112 INFO L225 Difference]: With dead ends: 12549 [2023-12-15 22:44:26,112 INFO L226 Difference]: Without dead ends: 8496 [2023-12-15 22:44:26,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:44:26,132 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 627 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 784 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:44:26,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 576 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 784 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 22:44:26,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8496 states. [2023-12-15 22:44:26,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8496 to 8446. [2023-12-15 22:44:26,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8446 states, 6869 states have (on average 1.6373562381714952) internal successors, (11247), 6876 states have internal predecessors, (11247), 1557 states have call successors, (1557), 15 states have call predecessors, (1557), 19 states have return successors, (1752), 1556 states have call predecessors, (1752), 1556 states have call successors, (1752) [2023-12-15 22:44:26,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8446 states to 8446 states and 14556 transitions. [2023-12-15 22:44:26,519 INFO L78 Accepts]: Start accepts. Automaton has 8446 states and 14556 transitions. Word has length 104 [2023-12-15 22:44:26,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:44:26,520 INFO L495 AbstractCegarLoop]: Abstraction has 8446 states and 14556 transitions. [2023-12-15 22:44:26,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:26,521 INFO L276 IsEmpty]: Start isEmpty. Operand 8446 states and 14556 transitions. [2023-12-15 22:44:26,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-15 22:44:26,537 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:44:26,538 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:44:26,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 22:44:26,538 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:44:26,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:44:26,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1754197550, now seen corresponding path program 1 times [2023-12-15 22:44:26,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:44:26,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770747600] [2023-12-15 22:44:26,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:26,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:44:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:26,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:44:26,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:26,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:44:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:26,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:44:26,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:26,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:44:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:26,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:44:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:26,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:44:26,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:26,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-15 22:44:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:26,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 22:44:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:26,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-15 22:44:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:26,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-15 22:44:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:26,626 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:44:26,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:44:26,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770747600] [2023-12-15 22:44:26,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770747600] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:44:26,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:44:26,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:44:26,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829416000] [2023-12-15 22:44:26,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:44:26,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:44:26,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:44:26,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:44:26,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:44:26,628 INFO L87 Difference]: Start difference. First operand 8446 states and 14556 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:27,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:44:27,778 INFO L93 Difference]: Finished difference Result 21901 states and 38517 transitions. [2023-12-15 22:44:27,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:44:27,778 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 105 [2023-12-15 22:44:27,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:44:27,829 INFO L225 Difference]: With dead ends: 21901 [2023-12-15 22:44:27,830 INFO L226 Difference]: Without dead ends: 14880 [2023-12-15 22:44:27,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:44:27,850 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 625 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:44:27,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 591 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 22:44:27,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14880 states. [2023-12-15 22:44:28,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14880 to 14830. [2023-12-15 22:44:28,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14830 states, 12050 states have (on average 1.6268879668049792) internal successors, (19604), 12057 states have internal predecessors, (19604), 2760 states have call successors, (2760), 15 states have call predecessors, (2760), 19 states have return successors, (3099), 2759 states have call predecessors, (3099), 2759 states have call successors, (3099) [2023-12-15 22:44:28,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14830 states to 14830 states and 25463 transitions. [2023-12-15 22:44:28,410 INFO L78 Accepts]: Start accepts. Automaton has 14830 states and 25463 transitions. Word has length 105 [2023-12-15 22:44:28,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:44:28,410 INFO L495 AbstractCegarLoop]: Abstraction has 14830 states and 25463 transitions. [2023-12-15 22:44:28,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:28,411 INFO L276 IsEmpty]: Start isEmpty. Operand 14830 states and 25463 transitions. [2023-12-15 22:44:28,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-15 22:44:28,432 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:44:28,432 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:44:28,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-15 22:44:28,433 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:44:28,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:44:28,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1206600728, now seen corresponding path program 1 times [2023-12-15 22:44:28,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:44:28,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945773302] [2023-12-15 22:44:28,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:28,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:44:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:28,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:44:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:28,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:44:28,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:28,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:44:28,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:28,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:44:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:28,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:44:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:28,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:44:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:28,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:44:28,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:28,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-15 22:44:28,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:28,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 22:44:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:28,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 22:44:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:28,513 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:44:28,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:44:28,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945773302] [2023-12-15 22:44:28,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945773302] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:44:28,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:44:28,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:44:28,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969969258] [2023-12-15 22:44:28,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:44:28,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:44:28,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:44:28,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:44:28,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:44:28,515 INFO L87 Difference]: Start difference. First operand 14830 states and 25463 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:29,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:44:29,863 INFO L93 Difference]: Finished difference Result 39260 states and 68903 transitions. [2023-12-15 22:44:29,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:44:29,863 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 106 [2023-12-15 22:44:29,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:44:29,989 INFO L225 Difference]: With dead ends: 39260 [2023-12-15 22:44:29,989 INFO L226 Difference]: Without dead ends: 26447 [2023-12-15 22:44:30,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:44:30,039 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 623 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:44:30,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 572 Invalid, 991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 22:44:30,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26447 states. [2023-12-15 22:44:31,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26447 to 26397. [2023-12-15 22:44:31,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26397 states, 21578 states have (on average 1.6224395217351006) internal successors, (35009), 21585 states have internal predecessors, (35009), 4799 states have call successors, (4799), 15 states have call predecessors, (4799), 19 states have return successors, (5412), 4798 states have call predecessors, (5412), 4798 states have call successors, (5412) [2023-12-15 22:44:31,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26397 states to 26397 states and 45220 transitions. [2023-12-15 22:44:31,209 INFO L78 Accepts]: Start accepts. Automaton has 26397 states and 45220 transitions. Word has length 106 [2023-12-15 22:44:31,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:44:31,209 INFO L495 AbstractCegarLoop]: Abstraction has 26397 states and 45220 transitions. [2023-12-15 22:44:31,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:31,210 INFO L276 IsEmpty]: Start isEmpty. Operand 26397 states and 45220 transitions. [2023-12-15 22:44:31,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-15 22:44:31,232 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:44:31,232 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:44:31,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-15 22:44:31,232 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:44:31,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:44:31,233 INFO L85 PathProgramCache]: Analyzing trace with hash 379922384, now seen corresponding path program 1 times [2023-12-15 22:44:31,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:44:31,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833129004] [2023-12-15 22:44:31,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:31,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:44:31,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:31,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:44:31,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:31,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:44:31,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:31,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:44:31,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:31,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:44:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:31,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:44:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:31,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:44:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:31,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 22:44:31,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:31,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 22:44:31,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:31,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 22:44:31,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:31,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-15 22:44:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:31,308 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:44:31,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:44:31,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833129004] [2023-12-15 22:44:31,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833129004] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:44:31,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:44:31,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:44:31,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347651609] [2023-12-15 22:44:31,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:44:31,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:44:31,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:44:31,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:44:31,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:44:31,310 INFO L87 Difference]: Start difference. First operand 26397 states and 45220 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:33,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:44:33,062 INFO L93 Difference]: Finished difference Result 71872 states and 125327 transitions. [2023-12-15 22:44:33,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:44:33,063 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 107 [2023-12-15 22:44:33,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:44:33,253 INFO L225 Difference]: With dead ends: 71872 [2023-12-15 22:44:33,253 INFO L226 Difference]: Without dead ends: 48207 [2023-12-15 22:44:33,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:44:33,327 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 621 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:44:33,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 581 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 22:44:33,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48207 states. [2023-12-15 22:44:35,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48207 to 48157. [2023-12-15 22:44:35,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48157 states, 39623 states have (on average 1.6167629911919845) internal successors, (64061), 39630 states have internal predecessors, (64061), 8514 states have call successors, (8514), 15 states have call predecessors, (8514), 19 states have return successors, (9659), 8513 states have call predecessors, (9659), 8513 states have call successors, (9659) [2023-12-15 22:44:35,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48157 states to 48157 states and 82234 transitions. [2023-12-15 22:44:35,755 INFO L78 Accepts]: Start accepts. Automaton has 48157 states and 82234 transitions. Word has length 107 [2023-12-15 22:44:35,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:44:35,755 INFO L495 AbstractCegarLoop]: Abstraction has 48157 states and 82234 transitions. [2023-12-15 22:44:35,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:35,755 INFO L276 IsEmpty]: Start isEmpty. Operand 48157 states and 82234 transitions. [2023-12-15 22:44:35,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-15 22:44:35,778 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:44:35,778 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:44:35,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-15 22:44:35,778 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:44:35,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:44:35,779 INFO L85 PathProgramCache]: Analyzing trace with hash 958162760, now seen corresponding path program 1 times [2023-12-15 22:44:35,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:44:35,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83514653] [2023-12-15 22:44:35,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:35,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:44:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:36,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:44:36,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:36,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:44:36,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:36,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:44:36,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:36,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:44:36,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:36,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:44:36,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:36,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:44:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:36,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 22:44:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:36,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 22:44:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:36,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-15 22:44:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:36,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-15 22:44:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:36,115 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:44:36,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:44:36,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83514653] [2023-12-15 22:44:36,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83514653] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:44:36,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:44:36,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:44:36,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468422080] [2023-12-15 22:44:36,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:44:36,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:44:36,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:44:36,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:44:36,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:44:36,118 INFO L87 Difference]: Start difference. First operand 48157 states and 82234 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:38,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:44:38,383 INFO L93 Difference]: Finished difference Result 89591 states and 156691 transitions. [2023-12-15 22:44:38,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:44:38,383 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 108 [2023-12-15 22:44:38,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:44:38,853 INFO L225 Difference]: With dead ends: 89591 [2023-12-15 22:44:38,853 INFO L226 Difference]: Without dead ends: 89495 [2023-12-15 22:44:38,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:44:38,878 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 619 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:44:38,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 571 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 22:44:38,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89495 states. [2023-12-15 22:44:41,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89495 to 89445. [2023-12-15 22:44:41,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89445 states, 74112 states have (on average 1.6096043825561313) internal successors, (119291), 74119 states have internal predecessors, (119291), 15313 states have call successors, (15313), 15 states have call predecessors, (15313), 19 states have return successors, (17504), 15312 states have call predecessors, (17504), 15312 states have call successors, (17504) [2023-12-15 22:44:42,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89445 states to 89445 states and 152108 transitions. [2023-12-15 22:44:42,062 INFO L78 Accepts]: Start accepts. Automaton has 89445 states and 152108 transitions. Word has length 108 [2023-12-15 22:44:42,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:44:42,062 INFO L495 AbstractCegarLoop]: Abstraction has 89445 states and 152108 transitions. [2023-12-15 22:44:42,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 22:44:42,063 INFO L276 IsEmpty]: Start isEmpty. Operand 89445 states and 152108 transitions. [2023-12-15 22:44:42,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-15 22:44:42,087 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:44:42,087 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:44:42,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-15 22:44:42,087 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:44:42,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:44:42,088 INFO L85 PathProgramCache]: Analyzing trace with hash -196082225, now seen corresponding path program 1 times [2023-12-15 22:44:42,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:44:42,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597806489] [2023-12-15 22:44:42,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:44:42,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:44:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:42,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:44:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:42,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:44:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:42,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:44:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:42,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:44:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:42,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:44:42,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:42,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:44:42,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:42,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:44:42,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:42,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 22:44:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:42,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-15 22:44:42,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:42,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 22:44:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:44:42,887 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:44:42,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:44:42,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597806489] [2023-12-15 22:44:42,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597806489] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:44:42,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:44:42,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-15 22:44:42,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906621678] [2023-12-15 22:44:42,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:44:42,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-15 22:44:42,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:44:42,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-15 22:44:42,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2023-12-15 22:44:42,891 INFO L87 Difference]: Start difference. First operand 89445 states and 152108 transitions. Second operand has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 9 states have internal predecessors, (74), 5 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-12-15 22:44:49,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:44:49,354 INFO L93 Difference]: Finished difference Result 178338 states and 315273 transitions. [2023-12-15 22:44:49,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-15 22:44:49,355 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 9 states have internal predecessors, (74), 5 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 109 [2023-12-15 22:44:49,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:44:50,587 INFO L225 Difference]: With dead ends: 178338 [2023-12-15 22:44:50,587 INFO L226 Difference]: Without dead ends: 178249 [2023-12-15 22:44:50,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=475, Invalid=1505, Unknown=0, NotChecked=0, Total=1980 [2023-12-15 22:44:50,694 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 2276 mSDsluCounter, 1736 mSDsCounter, 0 mSdLazyCounter, 4011 mSolverCounterSat, 624 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2276 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 4635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 624 IncrementalHoareTripleChecker+Valid, 4011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:44:50,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2276 Valid, 1945 Invalid, 4635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [624 Valid, 4011 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-15 22:44:50,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178249 states. Received shutdown request... [2023-12-15 22:44:54,287 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 22:44:55,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-15 22:44:56,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178249 to 178092. [2023-12-15 22:44:56,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178092 states, 147639 states have (on average 1.6106381105263514) internal successors, (237793), 147541 states have internal predecessors, (237793), 30409 states have call successors, (30409), 38 states have call predecessors, (30409), 43 states have return successors, (38058), 30518 states have call predecessors, (38058), 30406 states have call successors, (38058) [2023-12-15 22:44:56,514 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 22:44:56,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-15 22:44:56,515 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-15 22:44:56,518 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:44:56,520 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 22:44:56,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:44:56 BoogieIcfgContainer [2023-12-15 22:44:56,522 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 22:44:56,522 INFO L158 Benchmark]: Toolchain (without parser) took 51471.61ms. Allocated memory was 288.4MB in the beginning and 7.2GB in the end (delta: 6.9GB). Free memory was 236.7MB in the beginning and 4.8GB in the end (delta: -4.6GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2023-12-15 22:44:56,522 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 210.8MB. Free memory is still 162.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:44:56,522 INFO L158 Benchmark]: CACSL2BoogieTranslator took 789.70ms. Allocated memory is still 288.4MB. Free memory was 236.2MB in the beginning and 195.7MB in the end (delta: 40.4MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. [2023-12-15 22:44:56,523 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.99ms. Allocated memory is still 288.4MB. Free memory was 195.3MB in the beginning and 190.6MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-15 22:44:56,523 INFO L158 Benchmark]: Boogie Preprocessor took 120.07ms. Allocated memory is still 288.4MB. Free memory was 190.6MB in the beginning and 184.8MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-15 22:44:56,523 INFO L158 Benchmark]: RCFGBuilder took 1032.21ms. Allocated memory is still 288.4MB. Free memory was 184.8MB in the beginning and 223.7MB in the end (delta: -39.0MB). Peak memory consumption was 32.3MB. Max. memory is 8.0GB. [2023-12-15 22:44:56,523 INFO L158 Benchmark]: TraceAbstraction took 49419.32ms. Allocated memory was 288.4MB in the beginning and 7.2GB in the end (delta: 6.9GB). Free memory was 223.2MB in the beginning and 4.8GB in the end (delta: -4.6GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2023-12-15 22:44:56,524 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 210.8MB. Free memory is still 162.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 789.70ms. Allocated memory is still 288.4MB. Free memory was 236.2MB in the beginning and 195.7MB in the end (delta: 40.4MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 103.99ms. Allocated memory is still 288.4MB. Free memory was 195.3MB in the beginning and 190.6MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 120.07ms. Allocated memory is still 288.4MB. Free memory was 190.6MB in the beginning and 184.8MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1032.21ms. Allocated memory is still 288.4MB. Free memory was 184.8MB in the beginning and 223.7MB in the end (delta: -39.0MB). Peak memory consumption was 32.3MB. Max. memory is 8.0GB. * TraceAbstraction took 49419.32ms. Allocated memory was 288.4MB in the beginning and 7.2GB in the end (delta: 6.9GB). Free memory was 223.2MB in the beginning and 4.8GB in the end (delta: -4.6GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] - GenericResultAtLocation [Line: 269]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [269] - GenericResultAtLocation [Line: 318]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [318] - GenericResultAtLocation [Line: 598]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [598] - GenericResultAtLocation [Line: 1671]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1671] - GenericResultAtLocation [Line: 1906]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1906] - GenericResultAtLocation [Line: 2312]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2312] - GenericResultAtLocation [Line: 2329]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2329] - GenericResultAtLocation [Line: 2695]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2695] - GenericResultAtLocation [Line: 2704]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2704] - GenericResultAtLocation [Line: 2808]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [2808] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 2700]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2700). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 16 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 49.4s, OverallIterations: 21, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 27.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12054 SdHoareTripleChecker+Valid, 14.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11838 mSDsluCounter, 17258 SdHoareTripleChecker+Invalid, 12.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12919 mSDsCounter, 3629 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20986 IncrementalHoareTripleChecker+Invalid, 24615 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3629 mSolverCounterUnsat, 4339 mSDtfsCounter, 20986 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1280 GetRequests, 1040 SyntacticMatches, 0 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 647 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89445occurred in iteration=20, InterpolantAutomatonStates: 176, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 14.4s AutomataMinimizationTime, 21 MinimizatonAttempts, 745 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 2536 NumberOfCodeBlocks, 2536 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 2601 ConstructedInterpolants, 0 QuantifiedInterpolants, 4616 SizeOfPredicates, 8 NumberOfNonLiveVariables, 5247 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 28 InterpolantComputations, 20 PerfectInterpolantSequences, 818/842 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown