/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/email_spec9_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 05:42:02,353 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 05:42:02,432 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 05:42:02,437 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 05:42:02,438 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 05:42:02,471 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 05:42:02,471 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 05:42:02,472 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 05:42:02,472 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 05:42:02,476 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 05:42:02,476 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 05:42:02,476 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 05:42:02,477 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 05:42:02,478 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 05:42:02,478 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 05:42:02,478 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 05:42:02,479 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 05:42:02,479 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 05:42:02,479 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 05:42:02,479 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 05:42:02,479 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 05:42:02,480 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 05:42:02,480 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 05:42:02,480 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 05:42:02,481 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 05:42:02,481 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 05:42:02,481 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 05:42:02,481 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 05:42:02,482 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 05:42:02,482 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 05:42:02,483 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 05:42:02,483 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 05:42:02,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 05:42:02,483 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 05:42:02,483 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 05:42:02,483 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 05:42:02,484 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 05:42:02,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 05:42:02,484 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 05:42:02,484 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 05:42:02,484 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 05:42:02,484 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 05:42:02,485 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 05:42:02,485 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 05:42:02,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 05:42:02,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 05:42:02,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 05:42:02,706 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 05:42:02,707 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 05:42:02,708 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product22.cil.c [2023-12-16 05:42:03,896 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 05:42:04,217 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 05:42:04,218 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product22.cil.c [2023-12-16 05:42:04,237 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4aa483d39/90fa2a2129fe4c2bb0c5306542a142a8/FLAG60db42180 [2023-12-16 05:42:04,249 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4aa483d39/90fa2a2129fe4c2bb0c5306542a142a8 [2023-12-16 05:42:04,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 05:42:04,252 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 05:42:04,253 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 05:42:04,254 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 05:42:04,259 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 05:42:04,259 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:42:04" (1/1) ... [2023-12-16 05:42:04,260 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dd833df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:04, skipping insertion in model container [2023-12-16 05:42:04,260 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:42:04" (1/1) ... [2023-12-16 05:42:04,319 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 05:42:04,789 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_spec9_product22.cil.c[51984,51997] [2023-12-16 05:42:04,828 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 05:42:04,847 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 05:42:04,855 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2023-12-16 05:42:04,857 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [172] [2023-12-16 05:42:04,857 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1252] [2023-12-16 05:42:04,857 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1481] [2023-12-16 05:42:04,858 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1886] [2023-12-16 05:42:04,858 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2191] [2023-12-16 05:42:04,858 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2479] [2023-12-16 05:42:04,858 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2488] [2023-12-16 05:42:04,858 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptForward_spec.i","") [2854] [2023-12-16 05:42:04,858 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2896] [2023-12-16 05:42:04,859 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2913] [2023-12-16 05:42:04,910 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_spec9_product22.cil.c[51984,51997] [2023-12-16 05:42:04,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 05:42:04,957 INFO L206 MainTranslator]: Completed translation [2023-12-16 05:42:04,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:04 WrapperNode [2023-12-16 05:42:04,958 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 05:42:04,958 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 05:42:04,958 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 05:42:04,958 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 05:42:04,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:04" (1/1) ... [2023-12-16 05:42:04,984 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:04" (1/1) ... [2023-12-16 05:42:05,089 INFO L138 Inliner]: procedures = 129, calls = 193, calls flagged for inlining = 60, calls inlined = 55, statements flattened = 1016 [2023-12-16 05:42:05,089 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 05:42:05,090 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 05:42:05,090 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 05:42:05,090 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 05:42:05,102 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:04" (1/1) ... [2023-12-16 05:42:05,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:04" (1/1) ... [2023-12-16 05:42:05,107 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:04" (1/1) ... [2023-12-16 05:42:05,127 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]. [2023-12-16 05:42:05,127 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:04" (1/1) ... [2023-12-16 05:42:05,127 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:04" (1/1) ... [2023-12-16 05:42:05,143 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:04" (1/1) ... [2023-12-16 05:42:05,150 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:04" (1/1) ... [2023-12-16 05:42:05,154 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:04" (1/1) ... [2023-12-16 05:42:05,157 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:04" (1/1) ... [2023-12-16 05:42:05,164 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 05:42:05,164 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 05:42:05,165 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 05:42:05,165 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 05:42:05,165 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:04" (1/1) ... [2023-12-16 05:42:05,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 05:42:05,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:42:05,209 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) [2023-12-16 05:42:05,233 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 [2023-12-16 05:42:05,245 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-16 05:42:05,245 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-16 05:42:05,245 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-16 05:42:05,245 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-16 05:42:05,245 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-16 05:42:05,246 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-16 05:42:05,246 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-16 05:42:05,246 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-16 05:42:05,246 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-16 05:42:05,246 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-16 05:42:05,246 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-16 05:42:05,247 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-16 05:42:05,247 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-16 05:42:05,247 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-16 05:42:05,248 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-16 05:42:05,248 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-16 05:42:05,248 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-16 05:42:05,250 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-16 05:42:05,250 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-16 05:42:05,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-16 05:42:05,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 05:42:05,250 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-16 05:42:05,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-16 05:42:05,250 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-16 05:42:05,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-16 05:42:05,251 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-16 05:42:05,251 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-16 05:42:05,251 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-16 05:42:05,251 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-16 05:42:05,251 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-16 05:42:05,251 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-16 05:42:05,251 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-16 05:42:05,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-16 05:42:05,251 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-16 05:42:05,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-16 05:42:05,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 05:42:05,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 05:42:05,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-16 05:42:05,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-16 05:42:05,252 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-16 05:42:05,252 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-16 05:42:05,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 05:42:05,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 05:42:05,464 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 05:42:05,467 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 05:42:06,137 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 05:42:06,205 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 05:42:06,205 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 05:42:06,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:42:06 BoogieIcfgContainer [2023-12-16 05:42:06,206 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 05:42:06,208 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 05:42:06,208 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 05:42:06,211 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 05:42:06,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:42:04" (1/3) ... [2023-12-16 05:42:06,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26eff6ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:42:06, skipping insertion in model container [2023-12-16 05:42:06,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:04" (2/3) ... [2023-12-16 05:42:06,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26eff6ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:42:06, skipping insertion in model container [2023-12-16 05:42:06,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:42:06" (3/3) ... [2023-12-16 05:42:06,214 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product22.cil.c [2023-12-16 05:42:06,231 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 05:42:06,231 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 05:42:06,296 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 05:42:06,303 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;@76c0138a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 05:42:06,303 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 05:42:06,310 INFO L276 IsEmpty]: Start isEmpty. Operand has 294 states, 224 states have (on average 1.59375) internal successors, (357), 228 states have internal predecessors, (357), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-16 05:42:06,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-16 05:42:06,337 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:42:06,339 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, 1, 1] [2023-12-16 05:42:06,339 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:42:06,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:42:06,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1742368229, now seen corresponding path program 1 times [2023-12-16 05:42:06,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:42:06,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109443735] [2023-12-16 05:42:06,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:06,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:42:06,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:06,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:42:06,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:06,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:42:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:06,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:42:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:07,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:42:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:07,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:42:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:07,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:42:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:07,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 05:42:07,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:07,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-16 05:42:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:07,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-16 05:42:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:07,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 05:42:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:07,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-16 05:42:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:07,071 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 05:42:07,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:42:07,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109443735] [2023-12-16 05:42:07,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109443735] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:42:07,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935924867] [2023-12-16 05:42:07,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:07,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:42:07,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:42:07,080 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) [2023-12-16 05:42:07,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 05:42:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:07,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 909 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 05:42:07,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:42:07,412 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-16 05:42:07,412 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:42:07,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935924867] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:42:07,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:42:07,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-12-16 05:42:07,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382209699] [2023-12-16 05:42:07,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:42:07,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 05:42:07,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:42:07,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 05:42:07,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:42:07,455 INFO L87 Difference]: Start difference. First operand has 294 states, 224 states have (on average 1.59375) internal successors, (357), 228 states have internal predecessors, (357), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:42:07,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:42:07,556 INFO L93 Difference]: Finished difference Result 439 states and 670 transitions. [2023-12-16 05:42:07,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 05:42:07,565 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 83 [2023-12-16 05:42:07,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:42:07,576 INFO L225 Difference]: With dead ends: 439 [2023-12-16 05:42:07,576 INFO L226 Difference]: Without dead ends: 291 [2023-12-16 05:42:07,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:42:07,583 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:42:07,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 436 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:42:07,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-12-16 05:42:07,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2023-12-16 05:42:07,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 222 states have (on average 1.5765765765765767) internal successors, (350), 225 states have internal predecessors, (350), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-12-16 05:42:07,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 449 transitions. [2023-12-16 05:42:07,646 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 449 transitions. Word has length 83 [2023-12-16 05:42:07,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:42:07,647 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 449 transitions. [2023-12-16 05:42:07,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:42:07,647 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 449 transitions. [2023-12-16 05:42:07,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-16 05:42:07,651 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:42:07,651 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, 1, 1, 1] [2023-12-16 05:42:07,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 05:42:07,858 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 [2023-12-16 05:42:07,859 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:42:07,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:42:07,859 INFO L85 PathProgramCache]: Analyzing trace with hash -798874986, now seen corresponding path program 1 times [2023-12-16 05:42:07,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:42:07,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178316888] [2023-12-16 05:42:07,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:07,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:42:07,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:08,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:42:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:08,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:42:08,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:08,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:42:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:08,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:42:08,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:08,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:42:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:08,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:42:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:08,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-16 05:42:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:08,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-16 05:42:08,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:08,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 05:42:08,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:08,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 05:42:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:08,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-16 05:42:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:08,165 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 05:42:08,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:42:08,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178316888] [2023-12-16 05:42:08,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178316888] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:42:08,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618597360] [2023-12-16 05:42:08,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:08,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:42:08,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:42:08,168 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) [2023-12-16 05:42:08,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 05:42:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:08,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 910 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 05:42:08,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:42:08,465 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-16 05:42:08,466 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:42:08,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618597360] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:42:08,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:42:08,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-16 05:42:08,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17383921] [2023-12-16 05:42:08,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:42:08,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 05:42:08,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:42:08,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 05:42:08,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:42:08,470 INFO L87 Difference]: Start difference. First operand 291 states and 449 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:42:08,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:42:08,530 INFO L93 Difference]: Finished difference Result 435 states and 657 transitions. [2023-12-16 05:42:08,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 05:42:08,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 84 [2023-12-16 05:42:08,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:42:08,538 INFO L225 Difference]: With dead ends: 435 [2023-12-16 05:42:08,538 INFO L226 Difference]: Without dead ends: 293 [2023-12-16 05:42:08,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:42:08,543 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 0 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:42:08,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 865 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:42:08,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-12-16 05:42:08,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2023-12-16 05:42:08,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 224 states have (on average 1.5714285714285714) internal successors, (352), 227 states have internal predecessors, (352), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-12-16 05:42:08,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 451 transitions. [2023-12-16 05:42:08,575 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 451 transitions. Word has length 84 [2023-12-16 05:42:08,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:42:08,575 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 451 transitions. [2023-12-16 05:42:08,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:42:08,576 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 451 transitions. [2023-12-16 05:42:08,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 05:42:08,578 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:42:08,578 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, 1, 1, 1, 1] [2023-12-16 05:42:08,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 05:42:08,778 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 [2023-12-16 05:42:08,779 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:42:08,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:42:08,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1212547385, now seen corresponding path program 1 times [2023-12-16 05:42:08,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:42:08,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595988586] [2023-12-16 05:42:08,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:08,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:42:08,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:08,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:42:08,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:08,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:42:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:08,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:42:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:08,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:42:08,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:08,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:42:08,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:08,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:42:08,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:08,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 05:42:08,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:08,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-16 05:42:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:08,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-16 05:42:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:08,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-16 05:42:08,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:08,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-16 05:42:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:08,987 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-16 05:42:08,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:42:08,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595988586] [2023-12-16 05:42:08,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595988586] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:42:08,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712548790] [2023-12-16 05:42:08,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:08,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:42:08,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:42:08,990 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) [2023-12-16 05:42:09,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 05:42:09,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:09,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 934 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 05:42:09,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:42:09,272 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-16 05:42:09,272 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:42:09,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712548790] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:42:09,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:42:09,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-16 05:42:09,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245185054] [2023-12-16 05:42:09,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:42:09,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 05:42:09,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:42:09,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 05:42:09,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:42:09,275 INFO L87 Difference]: Start difference. First operand 293 states and 451 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:42:09,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:42:09,330 INFO L93 Difference]: Finished difference Result 620 states and 968 transitions. [2023-12-16 05:42:09,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 05:42:09,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 91 [2023-12-16 05:42:09,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:42:09,332 INFO L225 Difference]: With dead ends: 620 [2023-12-16 05:42:09,333 INFO L226 Difference]: Without dead ends: 349 [2023-12-16 05:42:09,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:42:09,335 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 109 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:42:09,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 837 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:42:09,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2023-12-16 05:42:09,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 344. [2023-12-16 05:42:09,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 264 states have (on average 1.5871212121212122) internal successors, (419), 267 states have internal predecessors, (419), 61 states have call successors, (61), 18 states have call predecessors, (61), 18 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-16 05:42:09,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 540 transitions. [2023-12-16 05:42:09,358 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 540 transitions. Word has length 91 [2023-12-16 05:42:09,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:42:09,359 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 540 transitions. [2023-12-16 05:42:09,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:42:09,359 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 540 transitions. [2023-12-16 05:42:09,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 05:42:09,363 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:42:09,363 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, 1, 1, 1, 1, 1] [2023-12-16 05:42:09,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 05:42:09,570 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 [2023-12-16 05:42:09,571 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:42:09,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:42:09,571 INFO L85 PathProgramCache]: Analyzing trace with hash -2027376248, now seen corresponding path program 1 times [2023-12-16 05:42:09,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:42:09,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589413732] [2023-12-16 05:42:09,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:09,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:42:09,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:09,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:42:09,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:09,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:42:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:09,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:42:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:09,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:42:09,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:09,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:42:09,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:09,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:42:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:09,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 05:42:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:09,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 05:42:09,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:09,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-16 05:42:09,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:09,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 05:42:09,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:09,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 05:42:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:09,808 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-16 05:42:09,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:42:09,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589413732] [2023-12-16 05:42:09,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589413732] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:42:09,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587292690] [2023-12-16 05:42:09,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:09,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:42:09,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:42:09,813 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) [2023-12-16 05:42:09,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 05:42:10,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:10,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 939 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 05:42:10,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:42:10,120 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-16 05:42:10,120 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:42:10,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587292690] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:42:10,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:42:10,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-12-16 05:42:10,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481171295] [2023-12-16 05:42:10,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:42:10,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:42:10,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:42:10,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:42:10,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-16 05:42:10,122 INFO L87 Difference]: Start difference. First operand 344 states and 540 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 05:42:10,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:42:10,207 INFO L93 Difference]: Finished difference Result 683 states and 1074 transitions. [2023-12-16 05:42:10,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:42:10,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 92 [2023-12-16 05:42:10,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:42:10,210 INFO L225 Difference]: With dead ends: 683 [2023-12-16 05:42:10,210 INFO L226 Difference]: Without dead ends: 346 [2023-12-16 05:42:10,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:42:10,214 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 8 mSDsluCounter, 1261 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:42:10,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1685 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:42:10,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2023-12-16 05:42:10,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2023-12-16 05:42:10,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 265 states have (on average 1.5849056603773586) internal successors, (420), 269 states have internal predecessors, (420), 61 states have call successors, (61), 18 states have call predecessors, (61), 19 states have return successors, (62), 60 states have call predecessors, (62), 60 states have call successors, (62) [2023-12-16 05:42:10,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 543 transitions. [2023-12-16 05:42:10,235 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 543 transitions. Word has length 92 [2023-12-16 05:42:10,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:42:10,235 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 543 transitions. [2023-12-16 05:42:10,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 05:42:10,235 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 543 transitions. [2023-12-16 05:42:10,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-16 05:42:10,237 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:42:10,238 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, 1, 1, 1, 1, 1] [2023-12-16 05:42:10,248 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 05:42:10,445 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 [2023-12-16 05:42:10,446 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:42:10,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:42:10,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1826158118, now seen corresponding path program 1 times [2023-12-16 05:42:10,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:42:10,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835816604] [2023-12-16 05:42:10,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:10,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:42:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:10,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:42:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:10,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:42:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:10,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:42:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:10,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:42:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:10,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-16 05:42:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:10,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-16 05:42:10,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:10,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 05:42:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:10,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 05:42:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:10,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-16 05:42:10,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:10,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-16 05:42:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:10,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 05:42:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:10,693 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 05:42:10,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:42:10,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835816604] [2023-12-16 05:42:10,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835816604] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:42:10,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914220182] [2023-12-16 05:42:10,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:10,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:42:10,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:42:10,695 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) [2023-12-16 05:42:10,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 05:42:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:10,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 940 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 05:42:10,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:42:11,001 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-16 05:42:11,001 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:42:11,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914220182] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:42:11,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:42:11,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-12-16 05:42:11,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478151872] [2023-12-16 05:42:11,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:42:11,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:42:11,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:42:11,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:42:11,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-12-16 05:42:11,005 INFO L87 Difference]: Start difference. First operand 346 states and 543 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 05:42:11,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:42:11,110 INFO L93 Difference]: Finished difference Result 685 states and 1079 transitions. [2023-12-16 05:42:11,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:42:11,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 93 [2023-12-16 05:42:11,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:42:11,113 INFO L225 Difference]: With dead ends: 685 [2023-12-16 05:42:11,113 INFO L226 Difference]: Without dead ends: 348 [2023-12-16 05:42:11,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-16 05:42:11,115 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 8 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:42:11,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1671 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:42:11,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-12-16 05:42:11,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2023-12-16 05:42:11,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 266 states have (on average 1.5827067669172932) internal successors, (421), 271 states have internal predecessors, (421), 61 states have call successors, (61), 18 states have call predecessors, (61), 20 states have return successors, (67), 60 states have call predecessors, (67), 60 states have call successors, (67) [2023-12-16 05:42:11,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 549 transitions. [2023-12-16 05:42:11,135 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 549 transitions. Word has length 93 [2023-12-16 05:42:11,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:42:11,135 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 549 transitions. [2023-12-16 05:42:11,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 05:42:11,136 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 549 transitions. [2023-12-16 05:42:11,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 05:42:11,137 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:42:11,137 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, 1] [2023-12-16 05:42:11,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 05:42:11,345 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 [2023-12-16 05:42:11,345 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:42:11,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:42:11,346 INFO L85 PathProgramCache]: Analyzing trace with hash -716031384, now seen corresponding path program 1 times [2023-12-16 05:42:11,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:42:11,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138013267] [2023-12-16 05:42:11,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:11,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:42:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:11,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:42:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:11,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:42:11,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:11,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:42:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:11,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:42:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:11,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:42:11,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:11,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 05:42:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:11,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-16 05:42:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:11,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-16 05:42:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:11,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-16 05:42:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:11,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 05:42:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:11,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 05:42:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:11,518 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-16 05:42:11,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:42:11,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138013267] [2023-12-16 05:42:11,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138013267] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:42:11,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:42:11,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 05:42:11,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892789412] [2023-12-16 05:42:11,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:42:11,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 05:42:11,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:42:11,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 05:42:11,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:42:11,520 INFO L87 Difference]: Start difference. First operand 348 states and 549 transitions. Second operand has 9 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 05:42:13,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:42:13,231 INFO L93 Difference]: Finished difference Result 824 states and 1315 transitions. [2023-12-16 05:42:13,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 05:42:13,232 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 94 [2023-12-16 05:42:13,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:42:13,238 INFO L225 Difference]: With dead ends: 824 [2023-12-16 05:42:13,238 INFO L226 Difference]: Without dead ends: 495 [2023-12-16 05:42:13,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 05:42:13,241 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 950 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2430 mSolverCounterSat, 317 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 2747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 317 IncrementalHoareTripleChecker+Valid, 2430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 05:42:13,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 1011 Invalid, 2747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [317 Valid, 2430 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 05:42:13,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2023-12-16 05:42:13,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 348. [2023-12-16 05:42:13,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 266 states have (on average 1.5827067669172932) internal successors, (421), 271 states have internal predecessors, (421), 61 states have call successors, (61), 18 states have call predecessors, (61), 20 states have return successors, (66), 60 states have call predecessors, (66), 60 states have call successors, (66) [2023-12-16 05:42:13,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 548 transitions. [2023-12-16 05:42:13,278 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 548 transitions. Word has length 94 [2023-12-16 05:42:13,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:42:13,278 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 548 transitions. [2023-12-16 05:42:13,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 05:42:13,278 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 548 transitions. [2023-12-16 05:42:13,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-16 05:42:13,280 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:42:13,280 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:42:13,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 05:42:13,280 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:42:13,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:42:13,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1770182680, now seen corresponding path program 2 times [2023-12-16 05:42:13,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:42:13,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829747151] [2023-12-16 05:42:13,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:13,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:42:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:13,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:42:13,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:13,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:42:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:13,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:42:13,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:13,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:42:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:13,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:42:13,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:13,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 05:42:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:13,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-16 05:42:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:13,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-16 05:42:13,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:13,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-16 05:42:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:13,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 05:42:13,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:13,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-16 05:42:13,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:13,477 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-16 05:42:13,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:42:13,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829747151] [2023-12-16 05:42:13,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829747151] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:42:13,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:42:13,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 05:42:13,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550839776] [2023-12-16 05:42:13,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:42:13,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 05:42:13,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:42:13,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 05:42:13,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:42:13,479 INFO L87 Difference]: Start difference. First operand 348 states and 548 transitions. Second operand has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 05:42:15,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:42:15,274 INFO L93 Difference]: Finished difference Result 826 states and 1318 transitions. [2023-12-16 05:42:15,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 05:42:15,275 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 95 [2023-12-16 05:42:15,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:42:15,283 INFO L225 Difference]: With dead ends: 826 [2023-12-16 05:42:15,283 INFO L226 Difference]: Without dead ends: 497 [2023-12-16 05:42:15,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 05:42:15,290 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 945 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2444 mSolverCounterSat, 317 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 2761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 317 IncrementalHoareTripleChecker+Valid, 2444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 05:42:15,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [947 Valid, 1011 Invalid, 2761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [317 Valid, 2444 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 05:42:15,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2023-12-16 05:42:15,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 350. [2023-12-16 05:42:15,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 267 states have (on average 1.5805243445692885) internal successors, (422), 273 states have internal predecessors, (422), 61 states have call successors, (61), 18 states have call predecessors, (61), 21 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2023-12-16 05:42:15,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 551 transitions. [2023-12-16 05:42:15,347 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 551 transitions. Word has length 95 [2023-12-16 05:42:15,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:42:15,347 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 551 transitions. [2023-12-16 05:42:15,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 05:42:15,347 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 551 transitions. [2023-12-16 05:42:15,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 05:42:15,349 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:42:15,349 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, 1, 1, 1] [2023-12-16 05:42:15,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 05:42:15,350 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:42:15,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:42:15,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1867974017, now seen corresponding path program 1 times [2023-12-16 05:42:15,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:42:15,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665824842] [2023-12-16 05:42:15,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:15,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:42:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:15,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:42:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:15,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:42:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:15,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:42:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:15,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:42:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:15,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:42:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:15,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:42:15,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:15,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-16 05:42:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:15,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-16 05:42:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:15,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 05:42:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:15,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-16 05:42:15,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:15,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 05:42:15,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:15,515 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-16 05:42:15,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:42:15,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665824842] [2023-12-16 05:42:15,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665824842] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:42:15,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:42:15,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 05:42:15,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992866041] [2023-12-16 05:42:15,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:42:15,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 05:42:15,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:42:15,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 05:42:15,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:42:15,518 INFO L87 Difference]: Start difference. First operand 350 states and 551 transitions. Second operand has 9 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 05:42:17,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:42:17,370 INFO L93 Difference]: Finished difference Result 826 states and 1317 transitions. [2023-12-16 05:42:17,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 05:42:17,371 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 96 [2023-12-16 05:42:17,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:42:17,374 INFO L225 Difference]: With dead ends: 826 [2023-12-16 05:42:17,374 INFO L226 Difference]: Without dead ends: 497 [2023-12-16 05:42:17,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2023-12-16 05:42:17,377 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 948 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2419 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 949 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 2739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 2419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 05:42:17,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [949 Valid, 1011 Invalid, 2739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 2419 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 05:42:17,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2023-12-16 05:42:17,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 350. [2023-12-16 05:42:17,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 267 states have (on average 1.5805243445692885) internal successors, (422), 273 states have internal predecessors, (422), 61 states have call successors, (61), 18 states have call predecessors, (61), 21 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2023-12-16 05:42:17,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 551 transitions. [2023-12-16 05:42:17,402 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 551 transitions. Word has length 96 [2023-12-16 05:42:17,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:42:17,403 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 551 transitions. [2023-12-16 05:42:17,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 05:42:17,403 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 551 transitions. [2023-12-16 05:42:17,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 05:42:17,404 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:42:17,404 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, 1, 1, 1] [2023-12-16 05:42:17,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 05:42:17,405 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:42:17,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:42:17,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1922366915, now seen corresponding path program 1 times [2023-12-16 05:42:17,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:42:17,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059750718] [2023-12-16 05:42:17,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:17,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:42:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:17,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:42:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:17,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:42:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:17,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:42:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:17,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:42:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:17,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:42:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:17,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:42:17,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:17,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-16 05:42:17,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:17,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-16 05:42:17,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:17,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 05:42:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:17,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-16 05:42:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:17,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 05:42:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:17,615 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 05:42:17,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:42:17,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059750718] [2023-12-16 05:42:17,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059750718] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:42:17,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:42:17,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 05:42:17,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704839333] [2023-12-16 05:42:17,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:42:17,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 05:42:17,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:42:17,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 05:42:17,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-16 05:42:17,617 INFO L87 Difference]: Start difference. First operand 350 states and 551 transitions. Second operand has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-12-16 05:42:20,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:42:20,062 INFO L93 Difference]: Finished difference Result 824 states and 1312 transitions. [2023-12-16 05:42:20,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 05:42:20,062 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 96 [2023-12-16 05:42:20,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:42:20,066 INFO L225 Difference]: With dead ends: 824 [2023-12-16 05:42:20,067 INFO L226 Difference]: Without dead ends: 497 [2023-12-16 05:42:20,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-16 05:42:20,069 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 955 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 4005 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 956 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 4326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 4005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:42:20,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [956 Valid, 1398 Invalid, 4326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 4005 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 05:42:20,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2023-12-16 05:42:20,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 350. [2023-12-16 05:42:20,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 267 states have (on average 1.5805243445692885) internal successors, (422), 273 states have internal predecessors, (422), 61 states have call successors, (61), 18 states have call predecessors, (61), 21 states have return successors, (67), 60 states have call predecessors, (67), 60 states have call successors, (67) [2023-12-16 05:42:20,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 550 transitions. [2023-12-16 05:42:20,116 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 550 transitions. Word has length 96 [2023-12-16 05:42:20,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:42:20,117 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 550 transitions. [2023-12-16 05:42:20,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-12-16 05:42:20,117 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 550 transitions. [2023-12-16 05:42:20,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-16 05:42:20,118 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:42:20,118 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:42:20,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 05:42:20,119 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:42:20,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:42:20,119 INFO L85 PathProgramCache]: Analyzing trace with hash 2120414929, now seen corresponding path program 2 times [2023-12-16 05:42:20,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:42:20,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914344736] [2023-12-16 05:42:20,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:20,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:42:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:20,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:42:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:20,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:42:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:20,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:42:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:20,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:42:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:20,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:42:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:20,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:42:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:20,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 05:42:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:20,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-16 05:42:20,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:20,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 05:42:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:20,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-16 05:42:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:20,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-16 05:42:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:20,319 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 05:42:20,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:42:20,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914344736] [2023-12-16 05:42:20,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914344736] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:42:20,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:42:20,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 05:42:20,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304551381] [2023-12-16 05:42:20,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:42:20,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 05:42:20,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:42:20,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 05:42:20,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-16 05:42:20,321 INFO L87 Difference]: Start difference. First operand 350 states and 550 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-12-16 05:42:22,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:42:22,737 INFO L93 Difference]: Finished difference Result 826 states and 1318 transitions. [2023-12-16 05:42:22,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 05:42:22,738 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 97 [2023-12-16 05:42:22,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:42:22,741 INFO L225 Difference]: With dead ends: 826 [2023-12-16 05:42:22,741 INFO L226 Difference]: Without dead ends: 499 [2023-12-16 05:42:22,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-16 05:42:22,743 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 950 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 4057 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 4375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 4057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:42:22,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 1398 Invalid, 4375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 4057 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 05:42:22,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2023-12-16 05:42:22,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 352. [2023-12-16 05:42:22,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 268 states have (on average 1.578358208955224) internal successors, (423), 275 states have internal predecessors, (423), 61 states have call successors, (61), 18 states have call predecessors, (61), 22 states have return successors, (72), 60 states have call predecessors, (72), 60 states have call successors, (72) [2023-12-16 05:42:22,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 556 transitions. [2023-12-16 05:42:22,766 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 556 transitions. Word has length 97 [2023-12-16 05:42:22,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:42:22,766 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 556 transitions. [2023-12-16 05:42:22,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-12-16 05:42:22,766 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 556 transitions. [2023-12-16 05:42:22,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-16 05:42:22,768 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:42:22,768 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, 1, 1, 1, 1, 1] [2023-12-16 05:42:22,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 05:42:22,768 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:42:22,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:42:22,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1393192162, now seen corresponding path program 1 times [2023-12-16 05:42:22,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:42:22,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245410908] [2023-12-16 05:42:22,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:22,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:42:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:22,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:42:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:22,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:42:22,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:22,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:42:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:22,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:42:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:22,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:42:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:22,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:42:22,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:22,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 05:42:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:22,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 05:42:22,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:22,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-16 05:42:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:22,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-16 05:42:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:22,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 05:42:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:22,984 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-16 05:42:22,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:42:22,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245410908] [2023-12-16 05:42:22,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245410908] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:42:22,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693416772] [2023-12-16 05:42:22,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:22,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:42:22,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:42:22,986 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) [2023-12-16 05:42:22,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-16 05:42:23,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:23,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 945 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 05:42:23,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:42:23,290 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:42:23,290 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 05:42:23,358 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:42:23,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693416772] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 05:42:23,359 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 05:42:23,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-12-16 05:42:23,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793369658] [2023-12-16 05:42:23,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 05:42:23,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-16 05:42:23,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:42:23,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-16 05:42:23,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-12-16 05:42:23,362 INFO L87 Difference]: Start difference. First operand 352 states and 556 transitions. Second operand has 15 states, 14 states have (on average 7.642857142857143) internal successors, (107), 11 states have internal predecessors, (107), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2023-12-16 05:42:26,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:42:26,164 INFO L93 Difference]: Finished difference Result 1175 states and 1964 transitions. [2023-12-16 05:42:26,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 05:42:26,165 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.642857142857143) internal successors, (107), 11 states have internal predecessors, (107), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 98 [2023-12-16 05:42:26,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:42:26,170 INFO L225 Difference]: With dead ends: 1175 [2023-12-16 05:42:26,170 INFO L226 Difference]: Without dead ends: 849 [2023-12-16 05:42:26,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2023-12-16 05:42:26,174 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 2064 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 4417 mSolverCounterSat, 656 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2081 SdHoareTripleChecker+Valid, 1588 SdHoareTripleChecker+Invalid, 5073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 656 IncrementalHoareTripleChecker+Valid, 4417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 05:42:26,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2081 Valid, 1588 Invalid, 5073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [656 Valid, 4417 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 05:42:26,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2023-12-16 05:42:26,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 687. [2023-12-16 05:42:26,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 539 states have (on average 1.6252319109461966) internal successors, (876), 546 states have internal predecessors, (876), 125 states have call successors, (125), 18 states have call predecessors, (125), 22 states have return successors, (146), 124 states have call predecessors, (146), 124 states have call successors, (146) [2023-12-16 05:42:26,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 1147 transitions. [2023-12-16 05:42:26,213 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 1147 transitions. Word has length 98 [2023-12-16 05:42:26,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:42:26,214 INFO L495 AbstractCegarLoop]: Abstraction has 687 states and 1147 transitions. [2023-12-16 05:42:26,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.642857142857143) internal successors, (107), 11 states have internal predecessors, (107), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2023-12-16 05:42:26,214 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 1147 transitions. [2023-12-16 05:42:26,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 05:42:26,217 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:42:26,217 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] [2023-12-16 05:42:26,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-16 05:42:26,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:42:26,427 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:42:26,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:42:26,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1369596719, now seen corresponding path program 1 times [2023-12-16 05:42:26,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:42:26,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685269665] [2023-12-16 05:42:26,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:26,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:42:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:26,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:42:26,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:26,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:42:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:26,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:42:26,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:26,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:42:26,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:26,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:42:26,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:26,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:42:26,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:26,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-16 05:42:26,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:26,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-16 05:42:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:26,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 05:42:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:26,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-16 05:42:26,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:26,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-16 05:42:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:26,519 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:42:26,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:42:26,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685269665] [2023-12-16 05:42:26,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685269665] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:42:26,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:42:26,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:42:26,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745847591] [2023-12-16 05:42:26,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:42:26,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:42:26,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:42:26,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:42:26,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:42:26,520 INFO L87 Difference]: Start difference. First operand 687 states and 1147 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:42:27,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:42:27,953 INFO L93 Difference]: Finished difference Result 1770 states and 3023 transitions. [2023-12-16 05:42:27,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:42:27,958 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 102 [2023-12-16 05:42:27,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:42:27,965 INFO L225 Difference]: With dead ends: 1770 [2023-12-16 05:42:27,965 INFO L226 Difference]: Without dead ends: 1151 [2023-12-16 05:42:27,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:42:27,968 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 1045 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:42:27,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1060 Valid, 781 Invalid, 1816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 1446 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 05:42:27,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2023-12-16 05:42:28,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 999. [2023-12-16 05:42:28,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 787 states have (on average 1.636594663278272) internal successors, (1288), 794 states have internal predecessors, (1288), 189 states have call successors, (189), 18 states have call predecessors, (189), 22 states have return successors, (220), 188 states have call predecessors, (220), 188 states have call successors, (220) [2023-12-16 05:42:28,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1697 transitions. [2023-12-16 05:42:28,019 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1697 transitions. Word has length 102 [2023-12-16 05:42:28,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:42:28,019 INFO L495 AbstractCegarLoop]: Abstraction has 999 states and 1697 transitions. [2023-12-16 05:42:28,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:42:28,019 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1697 transitions. [2023-12-16 05:42:28,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-16 05:42:28,024 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:42:28,024 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] [2023-12-16 05:42:28,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 05:42:28,024 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:42:28,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:42:28,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1626172755, now seen corresponding path program 1 times [2023-12-16 05:42:28,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:42:28,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793650631] [2023-12-16 05:42:28,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:28,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:42:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:28,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:42:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:28,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:42:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:28,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:42:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:28,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:42:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:28,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:42:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:28,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:42:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:28,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 05:42:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:28,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-16 05:42:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:28,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-16 05:42:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:28,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 05:42:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:28,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 05:42:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:28,111 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:42:28,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:42:28,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793650631] [2023-12-16 05:42:28,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793650631] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:42:28,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:42:28,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:42:28,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817972810] [2023-12-16 05:42:28,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:42:28,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:42:28,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:42:28,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:42:28,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:42:28,113 INFO L87 Difference]: Start difference. First operand 999 states and 1697 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:42:29,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:42:29,565 INFO L93 Difference]: Finished difference Result 2539 states and 4371 transitions. [2023-12-16 05:42:29,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:42:29,565 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2023-12-16 05:42:29,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:42:29,577 INFO L225 Difference]: With dead ends: 2539 [2023-12-16 05:42:29,577 INFO L226 Difference]: Without dead ends: 1658 [2023-12-16 05:42:29,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:42:29,584 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 1043 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 1778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:42:29,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 745 Invalid, 1778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 05:42:29,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2023-12-16 05:42:29,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 1506. [2023-12-16 05:42:29,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1199 states have (on average 1.6413678065054211) internal successors, (1968), 1206 states have internal predecessors, (1968), 284 states have call successors, (284), 18 states have call predecessors, (284), 22 states have return successors, (315), 283 states have call predecessors, (315), 283 states have call successors, (315) [2023-12-16 05:42:29,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2567 transitions. [2023-12-16 05:42:29,675 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2567 transitions. Word has length 103 [2023-12-16 05:42:29,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:42:29,676 INFO L495 AbstractCegarLoop]: Abstraction has 1506 states and 2567 transitions. [2023-12-16 05:42:29,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:42:29,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2567 transitions. [2023-12-16 05:42:29,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 05:42:29,682 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:42:29,682 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] [2023-12-16 05:42:29,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 05:42:29,682 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:42:29,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:42:29,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1801362941, now seen corresponding path program 1 times [2023-12-16 05:42:29,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:42:29,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775537197] [2023-12-16 05:42:29,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:29,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:42:29,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:29,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:42:29,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:29,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:42:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:29,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:42:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:29,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:42:29,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:29,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:42:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:29,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:42:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:29,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-16 05:42:29,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:29,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 05:42:29,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:29,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-16 05:42:29,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:29,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-16 05:42:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:29,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-16 05:42:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:29,814 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:42:29,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:42:29,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775537197] [2023-12-16 05:42:29,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775537197] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:42:29,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:42:29,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:42:29,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769651598] [2023-12-16 05:42:29,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:42:29,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:42:29,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:42:29,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:42:29,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:42:29,816 INFO L87 Difference]: Start difference. First operand 1506 states and 2567 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:42:31,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:42:31,182 INFO L93 Difference]: Finished difference Result 3685 states and 6396 transitions. [2023-12-16 05:42:31,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:42:31,182 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2023-12-16 05:42:31,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:42:31,196 INFO L225 Difference]: With dead ends: 3685 [2023-12-16 05:42:31,196 INFO L226 Difference]: Without dead ends: 2425 [2023-12-16 05:42:31,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:42:31,202 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 1041 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:42:31,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1056 Valid, 737 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 05:42:31,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2023-12-16 05:42:31,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 2273. [2023-12-16 05:42:31,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2273 states, 1843 states have (on average 1.6456863809007054) internal successors, (3033), 1850 states have internal predecessors, (3033), 407 states have call successors, (407), 18 states have call predecessors, (407), 22 states have return successors, (454), 406 states have call predecessors, (454), 406 states have call successors, (454) [2023-12-16 05:42:31,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 3894 transitions. [2023-12-16 05:42:31,303 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 3894 transitions. Word has length 104 [2023-12-16 05:42:31,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:42:31,303 INFO L495 AbstractCegarLoop]: Abstraction has 2273 states and 3894 transitions. [2023-12-16 05:42:31,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:42:31,303 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 3894 transitions. [2023-12-16 05:42:31,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-16 05:42:31,312 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:42:31,312 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] [2023-12-16 05:42:31,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 05:42:31,313 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:42:31,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:42:31,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1235976082, now seen corresponding path program 1 times [2023-12-16 05:42:31,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:42:31,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223221601] [2023-12-16 05:42:31,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:31,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:42:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:31,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:42:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:31,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:42:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:31,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:42:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:31,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:42:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:31,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:42:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:31,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:42:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:31,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-16 05:42:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:31,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 05:42:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:31,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 05:42:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:31,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 05:42:31,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:31,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-16 05:42:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:31,394 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:42:31,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:42:31,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223221601] [2023-12-16 05:42:31,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223221601] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:42:31,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:42:31,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:42:31,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890971175] [2023-12-16 05:42:31,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:42:31,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:42:31,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:42:31,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:42:31,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:42:31,397 INFO L87 Difference]: Start difference. First operand 2273 states and 3894 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:42:32,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:42:32,774 INFO L93 Difference]: Finished difference Result 5467 states and 9554 transitions. [2023-12-16 05:42:32,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:42:32,775 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2023-12-16 05:42:32,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:42:32,797 INFO L225 Difference]: With dead ends: 5467 [2023-12-16 05:42:32,797 INFO L226 Difference]: Without dead ends: 3649 [2023-12-16 05:42:32,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:42:32,807 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 1039 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:42:32,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1054 Valid, 737 Invalid, 1763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 05:42:32,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3649 states. [2023-12-16 05:42:32,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3649 to 3497. [2023-12-16 05:42:32,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3497 states, 2888 states have (on average 1.6485457063711912) internal successors, (4761), 2895 states have internal predecessors, (4761), 586 states have call successors, (586), 18 states have call predecessors, (586), 22 states have return successors, (659), 585 states have call predecessors, (659), 585 states have call successors, (659) [2023-12-16 05:42:32,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3497 states to 3497 states and 6006 transitions. [2023-12-16 05:42:32,977 INFO L78 Accepts]: Start accepts. Automaton has 3497 states and 6006 transitions. Word has length 105 [2023-12-16 05:42:32,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:42:32,977 INFO L495 AbstractCegarLoop]: Abstraction has 3497 states and 6006 transitions. [2023-12-16 05:42:32,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:42:32,978 INFO L276 IsEmpty]: Start isEmpty. Operand 3497 states and 6006 transitions. [2023-12-16 05:42:32,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-16 05:42:32,985 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:42:32,985 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] [2023-12-16 05:42:32,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 05:42:32,986 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:42:32,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:42:32,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1701161031, now seen corresponding path program 1 times [2023-12-16 05:42:32,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:42:32,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379721275] [2023-12-16 05:42:32,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:32,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:42:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:33,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:42:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:33,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:42:33,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:33,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:42:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:33,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:42:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:33,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:42:33,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:33,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:42:33,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:33,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-16 05:42:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:33,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-16 05:42:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:33,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-16 05:42:33,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:33,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-16 05:42:33,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:33,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 05:42:33,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:33,130 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:42:33,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:42:33,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379721275] [2023-12-16 05:42:33,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379721275] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:42:33,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:42:33,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:42:33,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052557300] [2023-12-16 05:42:33,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:42:33,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:42:33,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:42:33,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:42:33,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:42:33,132 INFO L87 Difference]: Start difference. First operand 3497 states and 6006 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:42:34,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:42:34,505 INFO L93 Difference]: Finished difference Result 8446 states and 14794 transitions. [2023-12-16 05:42:34,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:42:34,506 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2023-12-16 05:42:34,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:42:34,539 INFO L225 Difference]: With dead ends: 8446 [2023-12-16 05:42:34,539 INFO L226 Difference]: Without dead ends: 5707 [2023-12-16 05:42:34,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:42:34,553 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 1037 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 1426 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1052 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 1803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 1426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:42:34,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1052 Valid, 755 Invalid, 1803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 1426 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 05:42:34,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5707 states. [2023-12-16 05:42:34,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5707 to 5555. [2023-12-16 05:42:34,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5555 states, 4570 states have (on average 1.637636761487965) internal successors, (7484), 4577 states have internal predecessors, (7484), 962 states have call successors, (962), 18 states have call predecessors, (962), 22 states have return successors, (1079), 961 states have call predecessors, (1079), 961 states have call successors, (1079) [2023-12-16 05:42:34,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5555 states to 5555 states and 9525 transitions. [2023-12-16 05:42:34,858 INFO L78 Accepts]: Start accepts. Automaton has 5555 states and 9525 transitions. Word has length 106 [2023-12-16 05:42:34,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:42:34,859 INFO L495 AbstractCegarLoop]: Abstraction has 5555 states and 9525 transitions. [2023-12-16 05:42:34,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:42:34,860 INFO L276 IsEmpty]: Start isEmpty. Operand 5555 states and 9525 transitions. [2023-12-16 05:42:34,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-16 05:42:34,871 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:42:34,871 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] [2023-12-16 05:42:34,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 05:42:34,872 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:42:34,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:42:34,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1184490830, now seen corresponding path program 1 times [2023-12-16 05:42:34,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:42:34,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003842642] [2023-12-16 05:42:34,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:34,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:42:34,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:34,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:42:34,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:34,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:42:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:34,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:42:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:34,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:42:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:34,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:42:34,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:34,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:42:34,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:34,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-16 05:42:34,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:34,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 05:42:34,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:34,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 05:42:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:34,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 05:42:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:34,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-16 05:42:34,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:34,968 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:42:34,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:42:34,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003842642] [2023-12-16 05:42:34,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003842642] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:42:34,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:42:34,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:42:34,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765786215] [2023-12-16 05:42:34,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:42:34,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:42:34,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:42:34,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:42:34,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:42:34,970 INFO L87 Difference]: Start difference. First operand 5555 states and 9525 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:42:36,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:42:36,493 INFO L93 Difference]: Finished difference Result 13807 states and 24151 transitions. [2023-12-16 05:42:36,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:42:36,493 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2023-12-16 05:42:36,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:42:36,540 INFO L225 Difference]: With dead ends: 13807 [2023-12-16 05:42:36,540 INFO L226 Difference]: Without dead ends: 9396 [2023-12-16 05:42:36,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:42:36,556 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 1035 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 1779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:42:36,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1050 Valid, 750 Invalid, 1779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 05:42:36,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9396 states. [2023-12-16 05:42:36,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9396 to 9244. [2023-12-16 05:42:36,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9244 states, 7653 states have (on average 1.6351757480726512) internal successors, (12514), 7660 states have internal predecessors, (12514), 1568 states have call successors, (1568), 18 states have call predecessors, (1568), 22 states have return successors, (1763), 1567 states have call predecessors, (1763), 1567 states have call successors, (1763) [2023-12-16 05:42:36,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9244 states to 9244 states and 15845 transitions. [2023-12-16 05:42:36,969 INFO L78 Accepts]: Start accepts. Automaton has 9244 states and 15845 transitions. Word has length 107 [2023-12-16 05:42:36,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:42:36,969 INFO L495 AbstractCegarLoop]: Abstraction has 9244 states and 15845 transitions. [2023-12-16 05:42:36,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:42:36,970 INFO L276 IsEmpty]: Start isEmpty. Operand 9244 states and 15845 transitions. [2023-12-16 05:42:36,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-16 05:42:36,984 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:42:36,984 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] [2023-12-16 05:42:36,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 05:42:36,984 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:42:36,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:42:36,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1943320807, now seen corresponding path program 1 times [2023-12-16 05:42:36,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:42:36,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758435907] [2023-12-16 05:42:36,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:36,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:42:37,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:37,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:42:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:37,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:42:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:37,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:42:37,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:37,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:42:37,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:37,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:42:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:37,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:42:37,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:37,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-16 05:42:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:37,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-16 05:42:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:37,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 05:42:37,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:37,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 05:42:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:37,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-16 05:42:37,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:37,075 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:42:37,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:42:37,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758435907] [2023-12-16 05:42:37,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758435907] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:42:37,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:42:37,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:42:37,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309618673] [2023-12-16 05:42:37,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:42:37,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:42:37,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:42:37,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:42:37,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:42:37,077 INFO L87 Difference]: Start difference. First operand 9244 states and 15845 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:42:38,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:42:38,672 INFO L93 Difference]: Finished difference Result 23999 states and 41915 transitions. [2023-12-16 05:42:38,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:42:38,673 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2023-12-16 05:42:38,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:42:38,737 INFO L225 Difference]: With dead ends: 23999 [2023-12-16 05:42:38,737 INFO L226 Difference]: Without dead ends: 16356 [2023-12-16 05:42:38,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:42:38,766 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 1033 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 1813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:42:38,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 785 Invalid, 1813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 05:42:38,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16356 states. [2023-12-16 05:42:39,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16356 to 16204. [2023-12-16 05:42:39,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16204 states, 13410 states have (on average 1.6261744966442953) internal successors, (21807), 13417 states have internal predecessors, (21807), 2771 states have call successors, (2771), 18 states have call predecessors, (2771), 22 states have return successors, (3110), 2770 states have call predecessors, (3110), 2770 states have call successors, (3110) [2023-12-16 05:42:39,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16204 states to 16204 states and 27688 transitions. [2023-12-16 05:42:39,464 INFO L78 Accepts]: Start accepts. Automaton has 16204 states and 27688 transitions. Word has length 108 [2023-12-16 05:42:39,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:42:39,464 INFO L495 AbstractCegarLoop]: Abstraction has 16204 states and 27688 transitions. [2023-12-16 05:42:39,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:42:39,465 INFO L276 IsEmpty]: Start isEmpty. Operand 16204 states and 27688 transitions. [2023-12-16 05:42:39,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-16 05:42:39,493 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:42:39,493 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] [2023-12-16 05:42:39,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 05:42:39,493 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:42:39,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:42:39,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1435266451, now seen corresponding path program 1 times [2023-12-16 05:42:39,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:42:39,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473448524] [2023-12-16 05:42:39,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:39,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:42:39,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:39,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:42:39,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:39,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:42:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:39,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:42:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:39,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:42:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:39,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:42:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:39,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:42:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:39,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 05:42:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:39,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 05:42:39,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:39,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-16 05:42:39,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:39,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-16 05:42:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:39,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-16 05:42:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:39,583 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:42:39,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:42:39,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473448524] [2023-12-16 05:42:39,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473448524] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:42:39,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:42:39,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:42:39,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527880982] [2023-12-16 05:42:39,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:42:39,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:42:39,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:42:39,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:42:39,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:42:39,585 INFO L87 Difference]: Start difference. First operand 16204 states and 27688 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:42:41,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:42:41,356 INFO L93 Difference]: Finished difference Result 42974 states and 74927 transitions. [2023-12-16 05:42:41,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:42:41,357 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2023-12-16 05:42:41,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:42:41,623 INFO L225 Difference]: With dead ends: 42974 [2023-12-16 05:42:41,624 INFO L226 Difference]: Without dead ends: 29019 [2023-12-16 05:42:41,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:42:41,660 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 1031 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1046 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 1782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:42:41,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1046 Valid, 741 Invalid, 1782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 05:42:41,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29019 states. [2023-12-16 05:42:42,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29019 to 28867. [2023-12-16 05:42:42,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28867 states, 24034 states have (on average 1.6224099192810186) internal successors, (38993), 24041 states have internal predecessors, (38993), 4810 states have call successors, (4810), 18 states have call predecessors, (4810), 22 states have return successors, (5423), 4809 states have call predecessors, (5423), 4809 states have call successors, (5423) [2023-12-16 05:42:42,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28867 states to 28867 states and 49226 transitions. [2023-12-16 05:42:42,999 INFO L78 Accepts]: Start accepts. Automaton has 28867 states and 49226 transitions. Word has length 109 [2023-12-16 05:42:42,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:42:42,999 INFO L495 AbstractCegarLoop]: Abstraction has 28867 states and 49226 transitions. [2023-12-16 05:42:42,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:42:42,999 INFO L276 IsEmpty]: Start isEmpty. Operand 28867 states and 49226 transitions. [2023-12-16 05:42:43,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-16 05:42:43,022 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:42:43,022 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, 1] [2023-12-16 05:42:43,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 05:42:43,023 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:42:43,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:42:43,023 INFO L85 PathProgramCache]: Analyzing trace with hash -2053276681, now seen corresponding path program 1 times [2023-12-16 05:42:43,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:42:43,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335063261] [2023-12-16 05:42:43,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:43,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:42:43,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:43,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:42:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:43,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:42:43,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:43,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:42:43,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:43,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:42:43,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:43,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:42:43,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:43,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:42:43,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:43,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 05:42:43,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:43,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 05:42:43,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:43,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-16 05:42:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:43,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 05:42:43,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:43,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-16 05:42:43,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:43,123 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:42:43,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:42:43,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335063261] [2023-12-16 05:42:43,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335063261] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:42:43,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:42:43,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:42:43,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874876777] [2023-12-16 05:42:43,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:42:43,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:42:43,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:42:43,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:42:43,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:42:43,125 INFO L87 Difference]: Start difference. First operand 28867 states and 49226 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:42:45,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:42:45,551 INFO L93 Difference]: Finished difference Result 78746 states and 136486 transitions. [2023-12-16 05:42:45,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:42:45,551 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2023-12-16 05:42:45,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:42:45,787 INFO L225 Difference]: With dead ends: 78746 [2023-12-16 05:42:45,787 INFO L226 Difference]: Without dead ends: 52907 [2023-12-16 05:42:45,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:42:45,869 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 1029 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 1776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:42:45,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 755 Invalid, 1776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 1399 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 05:42:45,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52907 states. [2023-12-16 05:42:47,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52907 to 52755. [2023-12-16 05:42:48,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52755 states, 44207 states have (on average 1.61745877349741) internal successors, (71503), 44214 states have internal predecessors, (71503), 8525 states have call successors, (8525), 18 states have call predecessors, (8525), 22 states have return successors, (9670), 8524 states have call predecessors, (9670), 8524 states have call successors, (9670) [2023-12-16 05:42:48,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52755 states to 52755 states and 89698 transitions. [2023-12-16 05:42:48,274 INFO L78 Accepts]: Start accepts. Automaton has 52755 states and 89698 transitions. Word has length 110 [2023-12-16 05:42:48,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:42:48,275 INFO L495 AbstractCegarLoop]: Abstraction has 52755 states and 89698 transitions. [2023-12-16 05:42:48,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:42:48,275 INFO L276 IsEmpty]: Start isEmpty. Operand 52755 states and 89698 transitions. [2023-12-16 05:42:48,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 05:42:48,301 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:42:48,301 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, 1, 1] [2023-12-16 05:42:48,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 05:42:48,301 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:42:48,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:42:48,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1535867213, now seen corresponding path program 1 times [2023-12-16 05:42:48,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:42:48,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942077365] [2023-12-16 05:42:48,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:42:48,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:42:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:48,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:42:48,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:48,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:42:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:48,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:42:48,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:48,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:42:48,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:48,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:42:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:48,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:42:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:48,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-16 05:42:48,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:48,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-16 05:42:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:48,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-16 05:42:48,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:48,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-16 05:42:48,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:48,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-16 05:42:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:42:48,400 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:42:48,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:42:48,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942077365] [2023-12-16 05:42:48,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942077365] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:42:48,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:42:48,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:42:48,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835049538] [2023-12-16 05:42:48,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:42:48,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:42:48,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:42:48,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:42:48,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:42:48,402 INFO L87 Difference]: Start difference. First operand 52755 states and 89698 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:42:51,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:42:51,613 INFO L93 Difference]: Finished difference Result 98521 states and 171191 transitions. [2023-12-16 05:42:51,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:42:51,614 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2023-12-16 05:42:51,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:42:52,028 INFO L225 Difference]: With dead ends: 98521 [2023-12-16 05:42:52,029 INFO L226 Difference]: Without dead ends: 98379 [2023-12-16 05:42:52,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:42:52,090 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 1027 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 1777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 05:42:52,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1042 Valid, 741 Invalid, 1777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 1399 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 05:42:52,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98379 states. Received shutdown request... [2023-12-16 05:42:53,086 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 05:42:53,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 05:42:53,086 WARN L619 AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa. [2023-12-16 05:42:53,089 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] [2023-12-16 05:42:53,091 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 05:42:53,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:42:53 BoogieIcfgContainer [2023-12-16 05:42:53,093 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 05:42:53,094 INFO L158 Benchmark]: Toolchain (without parser) took 48841.17ms. Allocated memory was 306.2MB in the beginning and 3.4GB in the end (delta: 3.1GB). Free memory was 253.2MB in the beginning and 2.4GB in the end (delta: -2.1GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2023-12-16 05:42:53,094 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 190.8MB. Free memory is still 139.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 05:42:53,094 INFO L158 Benchmark]: CACSL2BoogieTranslator took 704.27ms. Allocated memory is still 306.2MB. Free memory was 252.9MB in the beginning and 211.2MB in the end (delta: 41.6MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. [2023-12-16 05:42:53,094 INFO L158 Benchmark]: Boogie Procedure Inliner took 131.25ms. Allocated memory is still 306.2MB. Free memory was 211.2MB in the beginning and 269.0MB in the end (delta: -57.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-16 05:42:53,094 INFO L158 Benchmark]: Boogie Preprocessor took 73.70ms. Allocated memory is still 306.2MB. Free memory was 269.0MB in the beginning and 262.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 05:42:53,095 INFO L158 Benchmark]: RCFGBuilder took 1041.67ms. Allocated memory is still 306.2MB. Free memory was 262.7MB in the beginning and 194.0MB in the end (delta: 68.7MB). Peak memory consumption was 68.2MB. Max. memory is 8.0GB. [2023-12-16 05:42:53,095 INFO L158 Benchmark]: TraceAbstraction took 46884.98ms. Allocated memory was 306.2MB in the beginning and 3.4GB in the end (delta: 3.1GB). Free memory was 193.5MB in the beginning and 2.4GB in the end (delta: -2.2GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2023-12-16 05:42:53,096 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 190.8MB. Free memory is still 139.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 704.27ms. Allocated memory is still 306.2MB. Free memory was 252.9MB in the beginning and 211.2MB in the end (delta: 41.6MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 131.25ms. Allocated memory is still 306.2MB. Free memory was 211.2MB in the beginning and 269.0MB in the end (delta: -57.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 73.70ms. Allocated memory is still 306.2MB. Free memory was 269.0MB in the beginning and 262.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1041.67ms. Allocated memory is still 306.2MB. Free memory was 262.7MB in the beginning and 194.0MB in the end (delta: 68.7MB). Peak memory consumption was 68.2MB. Max. memory is 8.0GB. * TraceAbstraction took 46884.98ms. Allocated memory was 306.2MB in the beginning and 3.4GB in the end (delta: 3.1GB). Free memory was 193.5MB in the beginning and 2.4GB in the end (delta: -2.2GB). Peak memory consumption was 1.5GB. 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,"Email.i","") [48] - GenericResultAtLocation [Line: 172]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [172] - GenericResultAtLocation [Line: 1252]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1252] - GenericResultAtLocation [Line: 1481]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1481] - GenericResultAtLocation [Line: 1886]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1886] - GenericResultAtLocation [Line: 2191]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2191] - GenericResultAtLocation [Line: 2479]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2479] - GenericResultAtLocation [Line: 2488]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2488] - GenericResultAtLocation [Line: 2854]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EncryptForward_spec.i","") [2854] - GenericResultAtLocation [Line: 2896]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2896] - GenericResultAtLocation [Line: 2913]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2913] * 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: 2484]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2484). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 19 procedures, 294 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 46.8s, OverallIterations: 21, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 32.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17487 SdHoareTripleChecker+Valid, 23.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17297 mSDsluCounter, 20438 SdHoareTripleChecker+Invalid, 19.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15617 mSDsCounter, 5992 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34172 IncrementalHoareTripleChecker+Invalid, 40164 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5992 mSolverCounterUnsat, 4821 mSDtfsCounter, 34172 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1382 GetRequests, 1104 SyntacticMatches, 0 SemanticMatches, 278 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52755occurred in iteration=20, InterpolantAutomatonStates: 192, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.9s AutomataMinimizationTime, 21 MinimizatonAttempts, 2270 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 2625 NumberOfCodeBlocks, 2625 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 2695 ConstructedInterpolants, 0 QuantifiedInterpolants, 4745 SizeOfPredicates, 8 NumberOfNonLiveVariables, 5577 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 28 InterpolantComputations, 20 PerfectInterpolantSequences, 817/843 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