/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_spec3_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 05:35:40,095 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 05:35:40,164 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 05:35:40,168 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 05:35:40,169 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 05:35:40,191 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 05:35:40,191 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 05:35:40,191 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 05:35:40,192 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 05:35:40,195 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 05:35:40,195 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 05:35:40,196 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 05:35:40,196 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 05:35:40,197 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 05:35:40,197 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 05:35:40,197 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 05:35:40,197 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 05:35:40,198 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 05:35:40,198 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 05:35:40,198 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 05:35:40,198 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 05:35:40,198 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 05:35:40,199 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 05:35:40,199 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 05:35:40,199 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 05:35:40,199 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 05:35:40,199 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 05:35:40,199 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 05:35:40,200 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 05:35:40,200 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 05:35:40,201 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 05:35:40,201 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 05:35:40,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 05:35:40,201 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 05:35:40,201 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 05:35:40,201 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 05:35:40,202 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 05:35:40,202 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 05:35:40,202 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 05:35:40,202 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 05:35:40,202 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 05:35:40,202 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 05:35:40,202 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 05:35:40,202 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 05:35:40,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 05:35:40,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 05:35:40,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 05:35:40,432 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 05:35:40,433 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 05:35:40,433 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product25.cil.c [2023-12-16 05:35:41,497 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 05:35:41,760 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 05:35:41,760 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product25.cil.c [2023-12-16 05:35:41,780 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/713002492/dfa085e9e87a455db7f7ecff3d6b2dcd/FLAGa9071af24 [2023-12-16 05:35:41,790 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/713002492/dfa085e9e87a455db7f7ecff3d6b2dcd [2023-12-16 05:35:41,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 05:35:41,793 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 05:35:41,794 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 05:35:41,794 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 05:35:41,798 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 05:35:41,799 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:35:41" (1/1) ... [2023-12-16 05:35:41,800 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a02f1ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:41, skipping insertion in model container [2023-12-16 05:35:41,800 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:35:41" (1/1) ... [2023-12-16 05:35:41,855 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 05:35:42,237 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_spec3_product25.cil.c[64426,64439] [2023-12-16 05:35:42,240 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 05:35:42,253 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 05:35:42,259 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [48] [2023-12-16 05:35:42,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [460] [2023-12-16 05:35:42,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [826] [2023-12-16 05:35:42,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [844] [2023-12-16 05:35:42,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1073] [2023-12-16 05:35:42,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2153] [2023-12-16 05:35:42,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2202] [2023-12-16 05:35:42,262 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [2548] [2023-12-16 05:35:42,262 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2607] [2023-12-16 05:35:42,262 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2703] [2023-12-16 05:35:42,262 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2991] [2023-12-16 05:35:42,349 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_spec3_product25.cil.c[64426,64439] [2023-12-16 05:35:42,349 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 05:35:42,374 INFO L206 MainTranslator]: Completed translation [2023-12-16 05:35:42,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:42 WrapperNode [2023-12-16 05:35:42,375 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 05:35:42,375 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 05:35:42,375 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 05:35:42,375 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 05:35:42,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:42" (1/1) ... [2023-12-16 05:35:42,397 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:42" (1/1) ... [2023-12-16 05:35:42,443 INFO L138 Inliner]: procedures = 131, calls = 207, calls flagged for inlining = 59, calls inlined = 56, statements flattened = 1030 [2023-12-16 05:35:42,444 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 05:35:42,444 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 05:35:42,445 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 05:35:42,445 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 05:35:42,452 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:42" (1/1) ... [2023-12-16 05:35:42,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:42" (1/1) ... [2023-12-16 05:35:42,459 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:42" (1/1) ... [2023-12-16 05:35:42,487 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 05:35:42,487 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:42" (1/1) ... [2023-12-16 05:35:42,488 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:42" (1/1) ... [2023-12-16 05:35:42,503 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:42" (1/1) ... [2023-12-16 05:35:42,510 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:42" (1/1) ... [2023-12-16 05:35:42,514 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:42" (1/1) ... [2023-12-16 05:35:42,517 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:42" (1/1) ... [2023-12-16 05:35:42,523 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 05:35:42,524 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 05:35:42,524 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 05:35:42,524 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 05:35:42,524 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:42" (1/1) ... [2023-12-16 05:35:42,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 05:35:42,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:35:42,569 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 05:35:42,576 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 05:35:42,596 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-16 05:35:42,596 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-16 05:35:42,596 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-16 05:35:42,596 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-16 05:35:42,596 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2023-12-16 05:35:42,596 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2023-12-16 05:35:42,597 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-16 05:35:42,597 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-16 05:35:42,597 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-16 05:35:42,597 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-16 05:35:42,597 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-16 05:35:42,597 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-16 05:35:42,597 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-16 05:35:42,598 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-16 05:35:42,598 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-16 05:35:42,598 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-16 05:35:42,599 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-16 05:35:42,600 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-16 05:35:42,600 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-16 05:35:42,600 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-16 05:35:42,600 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-16 05:35:42,600 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-16 05:35:42,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 05:35:42,600 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-16 05:35:42,601 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-16 05:35:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-16 05:35:42,601 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-16 05:35:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-16 05:35:42,601 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-16 05:35:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-16 05:35:42,601 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-16 05:35:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-16 05:35:42,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-16 05:35:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-16 05:35:42,601 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-16 05:35:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-16 05:35:42,601 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-16 05:35:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-16 05:35:42,602 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-16 05:35:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-16 05:35:42,602 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-16 05:35:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-16 05:35:42,602 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-16 05:35:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-16 05:35:42,602 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-16 05:35:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 05:35:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 05:35:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-16 05:35:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-16 05:35:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-16 05:35:42,602 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-16 05:35:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-16 05:35:42,603 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-16 05:35:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 05:35:42,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 05:35:42,808 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 05:35:42,810 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 05:35:43,474 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 05:35:43,532 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 05:35:43,532 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 05:35:43,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:35:43 BoogieIcfgContainer [2023-12-16 05:35:43,532 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 05:35:43,534 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 05:35:43,534 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 05:35:43,536 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 05:35:43,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:35:41" (1/3) ... [2023-12-16 05:35:43,538 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a6b0eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:35:43, skipping insertion in model container [2023-12-16 05:35:43,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:42" (2/3) ... [2023-12-16 05:35:43,538 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a6b0eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:35:43, skipping insertion in model container [2023-12-16 05:35:43,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:35:43" (3/3) ... [2023-12-16 05:35:43,539 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product25.cil.c [2023-12-16 05:35:43,553 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 05:35:43,553 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 05:35:43,603 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 05:35:43,608 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;@5641f804, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 05:35:43,609 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 05:35:43,615 INFO L276 IsEmpty]: Start isEmpty. Operand has 371 states, 283 states have (on average 1.6148409893992932) internal successors, (457), 288 states have internal predecessors, (457), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-16 05:35:43,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-16 05:35:43,649 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:35:43,650 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:35:43,650 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:35:43,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:35:43,655 INFO L85 PathProgramCache]: Analyzing trace with hash 254995704, now seen corresponding path program 1 times [2023-12-16 05:35:43,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:35:43,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200643697] [2023-12-16 05:35:43,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:35:43,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:35:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:44,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:35:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:44,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:35:44,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:44,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:35:44,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:44,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:35:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:44,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:35:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:44,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:35:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:44,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 05:35:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:44,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-16 05:35:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:44,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-16 05:35:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:44,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-16 05:35:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:44,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-16 05:35:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:44,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 05:35:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:44,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 05:35:44,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:44,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-16 05:35:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:44,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-16 05:35:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:44,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-16 05:35:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:44,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-16 05:35:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:44,204 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:35:44,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:35:44,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200643697] [2023-12-16 05:35:44,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200643697] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:35:44,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155223697] [2023-12-16 05:35:44,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:35:44,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:35:44,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:35:44,208 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 05:35:44,222 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 05:35:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:44,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 1147 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 05:35:44,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:35:44,582 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-16 05:35:44,582 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:35:44,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155223697] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:35:44,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:35:44,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-12-16 05:35:44,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101363951] [2023-12-16 05:35:44,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:35:44,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 05:35:44,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:35:44,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 05:35:44,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:35:44,615 INFO L87 Difference]: Start difference. First operand has 371 states, 283 states have (on average 1.6148409893992932) internal successors, (457), 288 states have internal predecessors, (457), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 05:35:44,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:35:44,716 INFO L93 Difference]: Finished difference Result 557 states and 861 transitions. [2023-12-16 05:35:44,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 05:35:44,721 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 123 [2023-12-16 05:35:44,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:35:44,731 INFO L225 Difference]: With dead ends: 557 [2023-12-16 05:35:44,731 INFO L226 Difference]: Without dead ends: 367 [2023-12-16 05:35:44,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:35:44,742 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:35:44,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 557 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:35:44,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2023-12-16 05:35:44,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 367. [2023-12-16 05:35:44,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 281 states have (on average 1.601423487544484) internal successors, (450), 284 states have internal predecessors, (450), 62 states have call successors, (62), 24 states have call predecessors, (62), 23 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-16 05:35:44,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 571 transitions. [2023-12-16 05:35:44,807 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 571 transitions. Word has length 123 [2023-12-16 05:35:44,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:35:44,808 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 571 transitions. [2023-12-16 05:35:44,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 05:35:44,808 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 571 transitions. [2023-12-16 05:35:44,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-16 05:35:44,813 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:35:44,813 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, 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 05:35:44,822 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 05:35:45,020 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 05:35:45,020 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:35:45,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:35:45,021 INFO L85 PathProgramCache]: Analyzing trace with hash -2120883837, now seen corresponding path program 1 times [2023-12-16 05:35:45,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:35:45,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417670007] [2023-12-16 05:35:45,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:35:45,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:35:45,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:45,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:35:45,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:45,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:35:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:45,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:35:45,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:45,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:35:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:45,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:35:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:45,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:35:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:45,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-16 05:35:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:45,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-16 05:35:45,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:45,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-16 05:35:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:45,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 05:35:45,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:45,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 05:35:45,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:45,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-16 05:35:45,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:45,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 05:35:45,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:45,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-16 05:35:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:45,254 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 05:35:45,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:35:45,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417670007] [2023-12-16 05:35:45,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417670007] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:35:45,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936310200] [2023-12-16 05:35:45,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:35:45,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:35:45,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:35:45,256 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 05:35:45,261 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 05:35:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:45,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 05:35:45,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:35:45,522 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 05:35:45,523 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:35:45,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936310200] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:35:45,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:35:45,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-16 05:35:45,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239286308] [2023-12-16 05:35:45,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:35:45,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 05:35:45,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:35:45,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 05:35:45,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:35:45,526 INFO L87 Difference]: Start difference. First operand 367 states and 571 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 05:35:45,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:35:45,595 INFO L93 Difference]: Finished difference Result 552 states and 841 transitions. [2023-12-16 05:35:45,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 05:35:45,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 106 [2023-12-16 05:35:45,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:35:45,599 INFO L225 Difference]: With dead ends: 552 [2023-12-16 05:35:45,599 INFO L226 Difference]: Without dead ends: 369 [2023-12-16 05:35:45,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:35:45,601 INFO L413 NwaCegarLoop]: 554 mSDtfsCounter, 0 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:35:45,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1107 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:35:45,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2023-12-16 05:35:45,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 369. [2023-12-16 05:35:45,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 283 states have (on average 1.5971731448763251) internal successors, (452), 286 states have internal predecessors, (452), 62 states have call successors, (62), 24 states have call predecessors, (62), 23 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-16 05:35:45,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 573 transitions. [2023-12-16 05:35:45,629 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 573 transitions. Word has length 106 [2023-12-16 05:35:45,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:35:45,630 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 573 transitions. [2023-12-16 05:35:45,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 05:35:45,630 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 573 transitions. [2023-12-16 05:35:45,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 05:35:45,633 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:35:45,633 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:35:45,641 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 05:35:45,833 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 05:35:45,834 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:35:45,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:35:45,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1999952474, now seen corresponding path program 1 times [2023-12-16 05:35:45,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:35:45,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955360371] [2023-12-16 05:35:45,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:35:45,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:35:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:45,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:35:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:45,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:35:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:45,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:35:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:35:46,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:35:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:35:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-16 05:35:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-16 05:35:46,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-16 05:35:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-16 05:35:46,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-16 05:35:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 05:35:46,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 05:35:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-16 05:35:46,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,055 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 05:35:46,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:35:46,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955360371] [2023-12-16 05:35:46,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955360371] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:35:46,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538235934] [2023-12-16 05:35:46,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:35:46,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:35:46,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:35:46,056 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 05:35:46,083 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 05:35:46,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 05:35:46,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:35:46,323 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 05:35:46,323 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:35:46,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538235934] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:35:46,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:35:46,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-16 05:35:46,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358673546] [2023-12-16 05:35:46,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:35:46,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 05:35:46,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:35:46,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 05:35:46,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:35:46,326 INFO L87 Difference]: Start difference. First operand 369 states and 573 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 05:35:46,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:35:46,382 INFO L93 Difference]: Finished difference Result 786 states and 1238 transitions. [2023-12-16 05:35:46,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 05:35:46,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 111 [2023-12-16 05:35:46,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:35:46,386 INFO L225 Difference]: With dead ends: 786 [2023-12-16 05:35:46,386 INFO L226 Difference]: Without dead ends: 439 [2023-12-16 05:35:46,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 134 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 05:35:46,389 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 129 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:35:46,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1078 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:35:46,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2023-12-16 05:35:46,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 434. [2023-12-16 05:35:46,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 334 states have (on average 1.6137724550898203) internal successors, (539), 337 states have internal predecessors, (539), 76 states have call successors, (76), 24 states have call predecessors, (76), 23 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-16 05:35:46,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 688 transitions. [2023-12-16 05:35:46,419 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 688 transitions. Word has length 111 [2023-12-16 05:35:46,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:35:46,421 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 688 transitions. [2023-12-16 05:35:46,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 05:35:46,421 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 688 transitions. [2023-12-16 05:35:46,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-16 05:35:46,425 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:35:46,425 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:35:46,432 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 05:35:46,632 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 05:35:46,632 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:35:46,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:35:46,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1049758509, now seen corresponding path program 1 times [2023-12-16 05:35:46,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:35:46,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905470602] [2023-12-16 05:35:46,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:35:46,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:35:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:35:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:35:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:35:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:35:46,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:35:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:35:46,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-16 05:35:46,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-16 05:35:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-16 05:35:46,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 05:35:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-16 05:35:46,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-16 05:35:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-16 05:35:46,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-16 05:35:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:46,819 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 05:35:46,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:35:46,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905470602] [2023-12-16 05:35:46,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905470602] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:35:46,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911866470] [2023-12-16 05:35:46,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:35:46,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:35:46,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:35:46,821 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 05:35:46,840 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 05:35:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:47,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 1096 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 05:35:47,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:35:47,130 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 05:35:47,130 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:35:47,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911866470] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:35:47,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:35:47,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-12-16 05:35:47,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811710165] [2023-12-16 05:35:47,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:35:47,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:35:47,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:35:47,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:35:47,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-16 05:35:47,132 INFO L87 Difference]: Start difference. First operand 434 states and 688 transitions. Second operand has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 05:35:47,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:35:47,215 INFO L93 Difference]: Finished difference Result 863 states and 1370 transitions. [2023-12-16 05:35:47,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:35:47,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 112 [2023-12-16 05:35:47,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:35:47,218 INFO L225 Difference]: With dead ends: 863 [2023-12-16 05:35:47,218 INFO L226 Difference]: Without dead ends: 436 [2023-12-16 05:35:47,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 133 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 05:35:47,220 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 8 mSDsluCounter, 1624 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2169 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:35:47,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2169 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:35:47,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2023-12-16 05:35:47,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 436. [2023-12-16 05:35:47,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 335 states have (on average 1.6119402985074627) internal successors, (540), 339 states have internal predecessors, (540), 76 states have call successors, (76), 24 states have call predecessors, (76), 24 states have return successors, (75), 72 states have call predecessors, (75), 73 states have call successors, (75) [2023-12-16 05:35:47,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 691 transitions. [2023-12-16 05:35:47,233 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 691 transitions. Word has length 112 [2023-12-16 05:35:47,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:35:47,233 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 691 transitions. [2023-12-16 05:35:47,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 05:35:47,234 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 691 transitions. [2023-12-16 05:35:47,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 05:35:47,235 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:35:47,236 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:35:47,244 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 05:35:47,442 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 05:35:47,442 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:35:47,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:35:47,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1135685333, now seen corresponding path program 1 times [2023-12-16 05:35:47,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:35:47,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654757820] [2023-12-16 05:35:47,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:35:47,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:35:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:47,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:35:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:47,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:35:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:47,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:35:47,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:47,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:35:47,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:47,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-16 05:35:47,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:47,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-16 05:35:47,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:47,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 05:35:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:47,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-16 05:35:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:47,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-16 05:35:47,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:47,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 05:35:47,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:47,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 05:35:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:47,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-16 05:35:47,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:47,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-16 05:35:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:47,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-16 05:35:47,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:47,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 05:35:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:47,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-16 05:35:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:47,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-16 05:35:47,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:47,668 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-16 05:35:47,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:35:47,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654757820] [2023-12-16 05:35:47,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654757820] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:35:47,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305900923] [2023-12-16 05:35:47,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:35:47,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:35:47,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:35:47,669 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 05:35:47,671 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 05:35:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:47,899 INFO L262 TraceCheckSpWp]: Trace formula consists of 1166 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 05:35:47,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:35:47,934 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-16 05:35:47,935 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:35:47,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305900923] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:35:47,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:35:47,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-12-16 05:35:47,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922706483] [2023-12-16 05:35:47,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:35:47,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:35:47,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:35:47,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:35:47,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-12-16 05:35:47,936 INFO L87 Difference]: Start difference. First operand 436 states and 691 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 05:35:48,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:35:48,014 INFO L93 Difference]: Finished difference Result 865 states and 1375 transitions. [2023-12-16 05:35:48,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:35:48,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 131 [2023-12-16 05:35:48,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:35:48,017 INFO L225 Difference]: With dead ends: 865 [2023-12-16 05:35:48,017 INFO L226 Difference]: Without dead ends: 438 [2023-12-16 05:35:48,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 157 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 05:35:48,019 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 8 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2155 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:35:48,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2155 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:35:48,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2023-12-16 05:35:48,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 438. [2023-12-16 05:35:48,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 336 states have (on average 1.6101190476190477) internal successors, (541), 341 states have internal predecessors, (541), 76 states have call successors, (76), 24 states have call predecessors, (76), 25 states have return successors, (80), 72 states have call predecessors, (80), 73 states have call successors, (80) [2023-12-16 05:35:48,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 697 transitions. [2023-12-16 05:35:48,036 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 697 transitions. Word has length 131 [2023-12-16 05:35:48,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:35:48,036 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 697 transitions. [2023-12-16 05:35:48,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 05:35:48,037 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 697 transitions. [2023-12-16 05:35:48,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 05:35:48,039 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:35:48,039 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:35:48,052 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 05:35:48,247 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 05:35:48,247 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:35:48,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:35:48,248 INFO L85 PathProgramCache]: Analyzing trace with hash -619740457, now seen corresponding path program 1 times [2023-12-16 05:35:48,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:35:48,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264393127] [2023-12-16 05:35:48,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:35:48,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:35:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:48,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:35:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:48,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:35:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:48,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:35:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:48,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:35:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:48,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:35:48,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:48,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 05:35:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:48,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 05:35:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:48,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 05:35:48,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:48,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 05:35:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:48,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 05:35:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:48,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 05:35:48,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:48,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-16 05:35:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:48,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 05:35:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:48,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 05:35:48,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:48,376 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 05:35:48,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:35:48,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264393127] [2023-12-16 05:35:48,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264393127] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:35:48,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:35:48,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 05:35:48,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233960441] [2023-12-16 05:35:48,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:35:48,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 05:35:48,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:35:48,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 05:35:48,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:35:48,377 INFO L87 Difference]: Start difference. First operand 438 states and 697 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 05:35:50,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:35:50,207 INFO L93 Difference]: Finished difference Result 1001 states and 1623 transitions. [2023-12-16 05:35:50,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 05:35:50,208 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 114 [2023-12-16 05:35:50,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:35:50,211 INFO L225 Difference]: With dead ends: 1001 [2023-12-16 05:35:50,211 INFO L226 Difference]: Without dead ends: 582 [2023-12-16 05:35:50,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 05:35:50,214 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 1248 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 2795 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 3238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 2795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 05:35:50,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1249 Valid, 1193 Invalid, 3238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 2795 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 05:35:50,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2023-12-16 05:35:50,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 438. [2023-12-16 05:35:50,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 336 states have (on average 1.6101190476190477) internal successors, (541), 341 states have internal predecessors, (541), 76 states have call successors, (76), 24 states have call predecessors, (76), 25 states have return successors, (79), 72 states have call predecessors, (79), 73 states have call successors, (79) [2023-12-16 05:35:50,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 696 transitions. [2023-12-16 05:35:50,249 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 696 transitions. Word has length 114 [2023-12-16 05:35:50,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:35:50,249 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 696 transitions. [2023-12-16 05:35:50,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 05:35:50,249 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 696 transitions. [2023-12-16 05:35:50,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-16 05:35:50,251 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:35:50,251 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:35:50,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 05:35:50,251 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:35:50,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:35:50,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1010657811, now seen corresponding path program 2 times [2023-12-16 05:35:50,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:35:50,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900467386] [2023-12-16 05:35:50,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:35:50,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:35:50,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:50,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:35:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:50,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:35:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:50,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:35:50,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:50,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:35:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:50,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:35:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:50,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 05:35:50,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:50,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 05:35:50,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:50,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 05:35:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:50,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 05:35:50,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:50,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 05:35:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:50,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 05:35:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:50,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 05:35:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:50,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-16 05:35:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:50,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-16 05:35:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:50,377 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 05:35:50,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:35:50,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900467386] [2023-12-16 05:35:50,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900467386] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:35:50,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:35:50,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 05:35:50,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409047893] [2023-12-16 05:35:50,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:35:50,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 05:35:50,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:35:50,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 05:35:50,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:35:50,378 INFO L87 Difference]: Start difference. First operand 438 states and 696 transitions. Second operand has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 05:35:52,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:35:52,162 INFO L93 Difference]: Finished difference Result 1003 states and 1626 transitions. [2023-12-16 05:35:52,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 05:35:52,163 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 115 [2023-12-16 05:35:52,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:35:52,166 INFO L225 Difference]: With dead ends: 1003 [2023-12-16 05:35:52,166 INFO L226 Difference]: Without dead ends: 584 [2023-12-16 05:35:52,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 05:35:52,168 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 1245 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 2804 mSolverCounterSat, 440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 3244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 2804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 05:35:52,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 1193 Invalid, 3244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [440 Valid, 2804 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 05:35:52,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2023-12-16 05:35:52,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 440. [2023-12-16 05:35:52,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 337 states have (on average 1.6083086053412463) internal successors, (542), 343 states have internal predecessors, (542), 76 states have call successors, (76), 24 states have call predecessors, (76), 26 states have return successors, (81), 72 states have call predecessors, (81), 73 states have call successors, (81) [2023-12-16 05:35:52,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 699 transitions. [2023-12-16 05:35:52,191 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 699 transitions. Word has length 115 [2023-12-16 05:35:52,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:35:52,192 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 699 transitions. [2023-12-16 05:35:52,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 05:35:52,192 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 699 transitions. [2023-12-16 05:35:52,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-16 05:35:52,194 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:35:52,194 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:35:52,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 05:35:52,194 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:35:52,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:35:52,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1758020146, now seen corresponding path program 1 times [2023-12-16 05:35:52,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:35:52,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736457153] [2023-12-16 05:35:52,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:35:52,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:35:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:52,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:35:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:52,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:35:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:52,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:35:52,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:52,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:35:52,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:52,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:35:52,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:52,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:35:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:52,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-16 05:35:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:52,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-16 05:35:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:52,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-16 05:35:52,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:52,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-16 05:35:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:52,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-16 05:35:52,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:52,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 05:35:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:52,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-16 05:35:52,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:52,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-16 05:35:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:52,397 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 05:35:52,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:35:52,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736457153] [2023-12-16 05:35:52,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736457153] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:35:52,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:35:52,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 05:35:52,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118245424] [2023-12-16 05:35:52,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:35:52,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 05:35:52,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:35:52,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 05:35:52,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-16 05:35:52,399 INFO L87 Difference]: Start difference. First operand 440 states and 699 transitions. Second operand has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-16 05:35:54,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:35:54,714 INFO L93 Difference]: Finished difference Result 1001 states and 1621 transitions. [2023-12-16 05:35:54,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 05:35:54,714 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 116 [2023-12-16 05:35:54,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:35:54,718 INFO L225 Difference]: With dead ends: 1001 [2023-12-16 05:35:54,718 INFO L226 Difference]: Without dead ends: 584 [2023-12-16 05:35:54,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-16 05:35:54,721 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 1254 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 4677 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 1653 SdHoareTripleChecker+Invalid, 5121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 4677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:35:54,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1255 Valid, 1653 Invalid, 5121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 4677 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-16 05:35:54,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2023-12-16 05:35:54,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 440. [2023-12-16 05:35:54,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 337 states have (on average 1.6083086053412463) internal successors, (542), 343 states have internal predecessors, (542), 76 states have call successors, (76), 24 states have call predecessors, (76), 26 states have return successors, (80), 72 states have call predecessors, (80), 73 states have call successors, (80) [2023-12-16 05:35:54,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 698 transitions. [2023-12-16 05:35:54,743 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 698 transitions. Word has length 116 [2023-12-16 05:35:54,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:35:54,743 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 698 transitions. [2023-12-16 05:35:54,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-16 05:35:54,743 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 698 transitions. [2023-12-16 05:35:54,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-16 05:35:54,745 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:35:54,745 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:35:54,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 05:35:54,745 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:35:54,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:35:54,746 INFO L85 PathProgramCache]: Analyzing trace with hash 787369694, now seen corresponding path program 1 times [2023-12-16 05:35:54,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:35:54,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696036464] [2023-12-16 05:35:54,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:35:54,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:35:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:54,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:35:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:54,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:35:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:54,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:35:54,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:54,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:35:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:54,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:35:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:54,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:35:54,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:54,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-16 05:35:54,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:54,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-16 05:35:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:54,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 05:35:54,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:54,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-16 05:35:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:54,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 05:35:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:54,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-16 05:35:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:54,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-16 05:35:54,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:54,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-16 05:35:54,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:54,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-16 05:35:54,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:54,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-16 05:35:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:54,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 05:35:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:54,955 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-16 05:35:54,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:35:54,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696036464] [2023-12-16 05:35:54,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696036464] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:35:54,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:35:54,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 05:35:54,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088674307] [2023-12-16 05:35:54,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:35:54,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 05:35:54,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:35:54,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 05:35:54,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-16 05:35:54,957 INFO L87 Difference]: Start difference. First operand 440 states and 698 transitions. Second operand has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-16 05:35:57,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:35:57,230 INFO L93 Difference]: Finished difference Result 1003 states and 1627 transitions. [2023-12-16 05:35:57,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 05:35:57,231 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 135 [2023-12-16 05:35:57,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:35:57,234 INFO L225 Difference]: With dead ends: 1003 [2023-12-16 05:35:57,234 INFO L226 Difference]: Without dead ends: 586 [2023-12-16 05:35:57,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-16 05:35:57,237 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 1251 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 4694 mSolverCounterSat, 447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 5141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 447 IncrementalHoareTripleChecker+Valid, 4694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:35:57,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1252 Valid, 1652 Invalid, 5141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [447 Valid, 4694 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-16 05:35:57,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2023-12-16 05:35:57,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 442. [2023-12-16 05:35:57,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 338 states have (on average 1.606508875739645) internal successors, (543), 345 states have internal predecessors, (543), 76 states have call successors, (76), 24 states have call predecessors, (76), 27 states have return successors, (85), 72 states have call predecessors, (85), 73 states have call successors, (85) [2023-12-16 05:35:57,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 704 transitions. [2023-12-16 05:35:57,257 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 704 transitions. Word has length 135 [2023-12-16 05:35:57,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:35:57,257 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 704 transitions. [2023-12-16 05:35:57,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-16 05:35:57,257 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 704 transitions. [2023-12-16 05:35:57,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-16 05:35:57,259 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:35:57,259 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:35:57,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 05:35:57,259 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:35:57,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:35:57,260 INFO L85 PathProgramCache]: Analyzing trace with hash -382099701, now seen corresponding path program 1 times [2023-12-16 05:35:57,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:35:57,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616901050] [2023-12-16 05:35:57,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:35:57,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:35:57,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:57,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:35:57,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:57,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:35:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:57,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:35:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:57,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:35:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:57,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:35:57,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:57,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:35:57,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:57,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-16 05:35:57,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:57,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-16 05:35:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:57,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-16 05:35:57,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:57,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 05:35:57,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:57,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 05:35:57,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:57,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 05:35:57,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:57,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-16 05:35:57,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:57,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-16 05:35:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:57,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-16 05:35:57,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:57,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-16 05:35:57,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:57,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-16 05:35:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:57,364 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 05:35:57,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:35:57,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616901050] [2023-12-16 05:35:57,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616901050] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:35:57,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722565623] [2023-12-16 05:35:57,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:35:57,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:35:57,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:35:57,365 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 05:35:57,387 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 05:35:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:57,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 1171 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 05:35:57,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:35:57,644 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 05:35:57,644 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 05:35:57,703 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 05:35:57,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722565623] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 05:35:57,704 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 05:35:57,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2023-12-16 05:35:57,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067536675] [2023-12-16 05:35:57,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 05:35:57,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 05:35:57,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:35:57,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 05:35:57,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-12-16 05:35:57,706 INFO L87 Difference]: Start difference. First operand 442 states and 704 transitions. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 7 states have internal predecessors, (121), 2 states have call successors, (42), 6 states have call predecessors, (42), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-16 05:35:59,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:35:59,460 INFO L93 Difference]: Finished difference Result 1189 states and 2004 transitions. [2023-12-16 05:35:59,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 05:35:59,461 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 7 states have internal predecessors, (121), 2 states have call successors, (42), 6 states have call predecessors, (42), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 136 [2023-12-16 05:35:59,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:35:59,466 INFO L225 Difference]: With dead ends: 1189 [2023-12-16 05:35:59,466 INFO L226 Difference]: Without dead ends: 1006 [2023-12-16 05:35:59,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-12-16 05:35:59,467 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 1732 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 2429 mSolverCounterSat, 615 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 1574 SdHoareTripleChecker+Invalid, 3044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 615 IncrementalHoareTripleChecker+Valid, 2429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 05:35:59,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1786 Valid, 1574 Invalid, 3044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [615 Valid, 2429 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 05:35:59,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2023-12-16 05:35:59,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 847. [2023-12-16 05:35:59,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 664 states have (on average 1.661144578313253) internal successors, (1103), 671 states have internal predecessors, (1103), 155 states have call successors, (155), 24 states have call predecessors, (155), 27 states have return successors, (174), 151 states have call predecessors, (174), 152 states have call successors, (174) [2023-12-16 05:35:59,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1432 transitions. [2023-12-16 05:35:59,496 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1432 transitions. Word has length 136 [2023-12-16 05:35:59,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:35:59,496 INFO L495 AbstractCegarLoop]: Abstraction has 847 states and 1432 transitions. [2023-12-16 05:35:59,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 7 states have internal predecessors, (121), 2 states have call successors, (42), 6 states have call predecessors, (42), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-16 05:35:59,496 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1432 transitions. [2023-12-16 05:35:59,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-16 05:35:59,499 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:35:59,499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:35:59,520 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-16 05:35:59,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:35:59,706 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:35:59,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:35:59,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1333165520, now seen corresponding path program 1 times [2023-12-16 05:35:59,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:35:59,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259498502] [2023-12-16 05:35:59,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:35:59,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:35:59,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:59,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:35:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:59,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:35:59,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:59,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:35:59,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:59,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:35:59,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:59,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:35:59,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:59,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:35:59,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:59,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-16 05:35:59,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:59,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-16 05:35:59,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:59,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-16 05:35:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:59,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-16 05:35:59,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:59,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 05:35:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:59,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-16 05:35:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:59,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 05:35:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:59,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-16 05:35:59,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:35:59,774 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 05:35:59,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:35:59,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259498502] [2023-12-16 05:35:59,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259498502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:35:59,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:35:59,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:35:59,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022159203] [2023-12-16 05:35:59,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:35:59,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:35:59,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:35:59,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:35:59,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:35:59,775 INFO L87 Difference]: Start difference. First operand 847 states and 1432 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 05:36:01,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:01,129 INFO L93 Difference]: Finished difference Result 2185 states and 3783 transitions. [2023-12-16 05:36:01,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:36:01,130 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 124 [2023-12-16 05:36:01,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:01,135 INFO L225 Difference]: With dead ends: 2185 [2023-12-16 05:36:01,135 INFO L226 Difference]: Without dead ends: 1398 [2023-12-16 05:36:01,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:36:01,138 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 1368 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 1583 mSolverCounterSat, 509 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 2092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 509 IncrementalHoareTripleChecker+Valid, 1583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:01,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1387 Valid, 905 Invalid, 2092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [509 Valid, 1583 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 05:36:01,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1398 states. [2023-12-16 05:36:01,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1398 to 1249. [2023-12-16 05:36:01,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 987 states have (on average 1.6717325227963526) internal successors, (1650), 994 states have internal predecessors, (1650), 234 states have call successors, (234), 24 states have call predecessors, (234), 27 states have return successors, (263), 230 states have call predecessors, (263), 231 states have call successors, (263) [2023-12-16 05:36:01,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 2147 transitions. [2023-12-16 05:36:01,180 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 2147 transitions. Word has length 124 [2023-12-16 05:36:01,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:01,180 INFO L495 AbstractCegarLoop]: Abstraction has 1249 states and 2147 transitions. [2023-12-16 05:36:01,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 05:36:01,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 2147 transitions. [2023-12-16 05:36:01,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-16 05:36:01,185 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:01,185 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:01,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 05:36:01,185 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:01,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:01,186 INFO L85 PathProgramCache]: Analyzing trace with hash -2032222432, now seen corresponding path program 1 times [2023-12-16 05:36:01,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:01,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244949875] [2023-12-16 05:36:01,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:01,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:01,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:01,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:01,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:01,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:01,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:01,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:01,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:01,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 05:36:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:01,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-16 05:36:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:01,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 05:36:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:01,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 05:36:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:01,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-16 05:36:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:01,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-16 05:36:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:01,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-16 05:36:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:01,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-16 05:36:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:01,260 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 05:36:01,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:01,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244949875] [2023-12-16 05:36:01,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244949875] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:01,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:01,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:36:01,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607269427] [2023-12-16 05:36:01,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:01,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:36:01,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:01,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:36:01,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:36:01,262 INFO L87 Difference]: Start difference. First operand 1249 states and 2147 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 05:36:02,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:02,622 INFO L93 Difference]: Finished difference Result 3168 states and 5530 transitions. [2023-12-16 05:36:02,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:36:02,623 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 125 [2023-12-16 05:36:02,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:02,632 INFO L225 Difference]: With dead ends: 3168 [2023-12-16 05:36:02,633 INFO L226 Difference]: Without dead ends: 2029 [2023-12-16 05:36:02,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:36:02,637 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 1360 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 1592 mSolverCounterSat, 505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 2097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 1592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:02,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1378 Valid, 886 Invalid, 2097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [505 Valid, 1592 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 05:36:02,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2029 states. [2023-12-16 05:36:02,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2029 to 1880. [2023-12-16 05:36:02,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1880 states, 1499 states have (on average 1.6784523015343562) internal successors, (2516), 1506 states have internal predecessors, (2516), 353 states have call successors, (353), 24 states have call predecessors, (353), 27 states have return successors, (382), 349 states have call predecessors, (382), 350 states have call successors, (382) [2023-12-16 05:36:02,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1880 states to 1880 states and 3251 transitions. [2023-12-16 05:36:02,736 INFO L78 Accepts]: Start accepts. Automaton has 1880 states and 3251 transitions. Word has length 125 [2023-12-16 05:36:02,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:02,736 INFO L495 AbstractCegarLoop]: Abstraction has 1880 states and 3251 transitions. [2023-12-16 05:36:02,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 05:36:02,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1880 states and 3251 transitions. [2023-12-16 05:36:02,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-16 05:36:02,744 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:02,744 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:02,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 05:36:02,745 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:02,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:02,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1988778286, now seen corresponding path program 1 times [2023-12-16 05:36:02,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:02,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941367107] [2023-12-16 05:36:02,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:02,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:02,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:02,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-16 05:36:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 05:36:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 05:36:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-16 05:36:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-16 05:36:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-16 05:36:02,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 05:36:02,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 05:36:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,860 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 05:36:02,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:02,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941367107] [2023-12-16 05:36:02,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941367107] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:02,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:02,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:36:02,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587321525] [2023-12-16 05:36:02,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:02,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:36:02,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:02,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:36:02,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:36:02,862 INFO L87 Difference]: Start difference. First operand 1880 states and 3251 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 05:36:04,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:04,220 INFO L93 Difference]: Finished difference Result 4648 states and 8182 transitions. [2023-12-16 05:36:04,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:36:04,224 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 126 [2023-12-16 05:36:04,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:04,242 INFO L225 Difference]: With dead ends: 4648 [2023-12-16 05:36:04,242 INFO L226 Difference]: Without dead ends: 2998 [2023-12-16 05:36:04,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:36:04,247 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 1361 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 1585 mSolverCounterSat, 503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1379 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 2088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 1585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:04,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1379 Valid, 879 Invalid, 2088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 1585 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 05:36:04,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2023-12-16 05:36:04,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 2849. [2023-12-16 05:36:04,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2849 states, 2306 states have (on average 1.6843018213356462) internal successors, (3884), 2313 states have internal predecessors, (3884), 515 states have call successors, (515), 24 states have call predecessors, (515), 27 states have return successors, (560), 511 states have call predecessors, (560), 512 states have call successors, (560) [2023-12-16 05:36:04,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2849 states to 2849 states and 4959 transitions. [2023-12-16 05:36:04,324 INFO L78 Accepts]: Start accepts. Automaton has 2849 states and 4959 transitions. Word has length 126 [2023-12-16 05:36:04,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:04,324 INFO L495 AbstractCegarLoop]: Abstraction has 2849 states and 4959 transitions. [2023-12-16 05:36:04,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 05:36:04,325 INFO L276 IsEmpty]: Start isEmpty. Operand 2849 states and 4959 transitions. [2023-12-16 05:36:04,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-16 05:36:04,334 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:04,335 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:04,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 05:36:04,335 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:04,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:04,336 INFO L85 PathProgramCache]: Analyzing trace with hash 629922397, now seen corresponding path program 1 times [2023-12-16 05:36:04,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:04,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341788877] [2023-12-16 05:36:04,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:04,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:04,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:04,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:04,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-16 05:36:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 05:36:04,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-16 05:36:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 05:36:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-16 05:36:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-16 05:36:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 05:36:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 05:36:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-16 05:36:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-16 05:36:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-16 05:36:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,436 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 05:36:04,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:04,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341788877] [2023-12-16 05:36:04,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341788877] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:04,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:04,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:36:04,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129681449] [2023-12-16 05:36:04,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:04,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:36:04,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:04,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:36:04,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:36:04,438 INFO L87 Difference]: Start difference. First operand 2849 states and 4959 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 05:36:05,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:05,847 INFO L93 Difference]: Finished difference Result 6988 states and 12387 transitions. [2023-12-16 05:36:05,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:36:05,848 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 145 [2023-12-16 05:36:05,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:05,867 INFO L225 Difference]: With dead ends: 6988 [2023-12-16 05:36:05,867 INFO L226 Difference]: Without dead ends: 4566 [2023-12-16 05:36:05,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 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 05:36:05,875 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 1357 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 1571 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 2083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 1571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:05,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1375 Valid, 878 Invalid, 2083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 1571 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 05:36:05,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4566 states. [2023-12-16 05:36:05,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4566 to 4417. [2023-12-16 05:36:06,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4417 states, 3629 states have (on average 1.6886194543951503) internal successors, (6128), 3636 states have internal predecessors, (6128), 760 states have call successors, (760), 24 states have call predecessors, (760), 27 states have return successors, (831), 756 states have call predecessors, (831), 757 states have call successors, (831) [2023-12-16 05:36:06,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4417 states to 4417 states and 7719 transitions. [2023-12-16 05:36:06,011 INFO L78 Accepts]: Start accepts. Automaton has 4417 states and 7719 transitions. Word has length 145 [2023-12-16 05:36:06,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:06,011 INFO L495 AbstractCegarLoop]: Abstraction has 4417 states and 7719 transitions. [2023-12-16 05:36:06,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 05:36:06,012 INFO L276 IsEmpty]: Start isEmpty. Operand 4417 states and 7719 transitions. [2023-12-16 05:36:06,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-16 05:36:06,025 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:06,025 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:06,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 05:36:06,025 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:06,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:06,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1797316430, now seen corresponding path program 1 times [2023-12-16 05:36:06,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:06,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241062247] [2023-12-16 05:36:06,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:06,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:06,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:06,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-16 05:36:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-16 05:36:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-16 05:36:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 05:36:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-16 05:36:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-16 05:36:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-16 05:36:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 05:36:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,135 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 05:36:06,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:06,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241062247] [2023-12-16 05:36:06,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241062247] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:06,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:06,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:36:06,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695678817] [2023-12-16 05:36:06,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:06,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:36:06,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:06,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:36:06,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:36:06,136 INFO L87 Difference]: Start difference. First operand 4417 states and 7719 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 05:36:07,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:07,467 INFO L93 Difference]: Finished difference Result 10941 states and 19454 transitions. [2023-12-16 05:36:07,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:36:07,467 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 128 [2023-12-16 05:36:07,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:07,498 INFO L225 Difference]: With dead ends: 10941 [2023-12-16 05:36:07,498 INFO L226 Difference]: Without dead ends: 7238 [2023-12-16 05:36:07,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:36:07,528 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 1360 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 1580 mSolverCounterSat, 509 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1379 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 2089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 509 IncrementalHoareTripleChecker+Valid, 1580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:07,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1379 Valid, 914 Invalid, 2089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [509 Valid, 1580 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 05:36:07,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7238 states. [2023-12-16 05:36:07,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7238 to 7089. [2023-12-16 05:36:07,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7089 states, 5808 states have (on average 1.6825068870523416) internal successors, (9772), 5815 states have internal predecessors, (9772), 1253 states have call successors, (1253), 24 states have call predecessors, (1253), 27 states have return successors, (1368), 1249 states have call predecessors, (1368), 1250 states have call successors, (1368) [2023-12-16 05:36:07,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7089 states to 7089 states and 12393 transitions. [2023-12-16 05:36:07,812 INFO L78 Accepts]: Start accepts. Automaton has 7089 states and 12393 transitions. Word has length 128 [2023-12-16 05:36:07,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:07,812 INFO L495 AbstractCegarLoop]: Abstraction has 7089 states and 12393 transitions. [2023-12-16 05:36:07,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 05:36:07,813 INFO L276 IsEmpty]: Start isEmpty. Operand 7089 states and 12393 transitions. [2023-12-16 05:36:07,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-16 05:36:07,833 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:07,833 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:07,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 05:36:07,834 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:07,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:07,834 INFO L85 PathProgramCache]: Analyzing trace with hash -902914087, now seen corresponding path program 1 times [2023-12-16 05:36:07,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:07,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463583809] [2023-12-16 05:36:07,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:07,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:07,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:07,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:07,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:07,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-16 05:36:07,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 05:36:07,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-16 05:36:07,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 05:36:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-16 05:36:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-16 05:36:07,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-16 05:36:07,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 05:36:07,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-16 05:36:07,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-16 05:36:07,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-16 05:36:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,926 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 05:36:07,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:07,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463583809] [2023-12-16 05:36:07,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463583809] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:07,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:07,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:36:07,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316454631] [2023-12-16 05:36:07,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:07,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:36:07,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:07,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:36:07,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:36:07,927 INFO L87 Difference]: Start difference. First operand 7089 states and 12393 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 05:36:09,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:09,460 INFO L93 Difference]: Finished difference Result 18076 states and 32138 transitions. [2023-12-16 05:36:09,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:36:09,461 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2023-12-16 05:36:09,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:09,499 INFO L225 Difference]: With dead ends: 18076 [2023-12-16 05:36:09,499 INFO L226 Difference]: Without dead ends: 12067 [2023-12-16 05:36:09,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 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 05:36:09,517 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 1358 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 1568 mSolverCounterSat, 522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1377 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 2090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 522 IncrementalHoareTripleChecker+Valid, 1568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:09,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1377 Valid, 885 Invalid, 2090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [522 Valid, 1568 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 05:36:09,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12067 states. [2023-12-16 05:36:09,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12067 to 11918. [2023-12-16 05:36:09,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11918 states, 9815 states have (on average 1.682322975038207) internal successors, (16512), 9822 states have internal predecessors, (16512), 2075 states have call successors, (2075), 24 states have call predecessors, (2075), 27 states have return successors, (2268), 2071 states have call predecessors, (2268), 2072 states have call successors, (2268) [2023-12-16 05:36:09,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11918 states to 11918 states and 20855 transitions. [2023-12-16 05:36:09,854 INFO L78 Accepts]: Start accepts. Automaton has 11918 states and 20855 transitions. Word has length 147 [2023-12-16 05:36:09,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:09,854 INFO L495 AbstractCegarLoop]: Abstraction has 11918 states and 20855 transitions. [2023-12-16 05:36:09,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 05:36:09,855 INFO L276 IsEmpty]: Start isEmpty. Operand 11918 states and 20855 transitions. [2023-12-16 05:36:09,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-16 05:36:09,925 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:09,925 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:09,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 05:36:09,926 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:09,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:09,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1430514050, now seen corresponding path program 1 times [2023-12-16 05:36:09,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:09,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806368794] [2023-12-16 05:36:09,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:09,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:09,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:09,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:09,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:09,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:09,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:09,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:09,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:09,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:09,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:09,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:09,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:09,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-16 05:36:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:09,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-16 05:36:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:09,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 05:36:09,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:09,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-16 05:36:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:09,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-16 05:36:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:09,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 05:36:09,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:09,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-16 05:36:09,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:09,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-16 05:36:09,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:10,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 05:36:10,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:10,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-16 05:36:10,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:10,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-16 05:36:10,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:10,003 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 05:36:10,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:10,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806368794] [2023-12-16 05:36:10,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806368794] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:10,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:10,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:36:10,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130498488] [2023-12-16 05:36:10,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:10,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:36:10,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:10,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:36:10,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:36:10,006 INFO L87 Difference]: Start difference. First operand 11918 states and 20855 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 05:36:11,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:11,568 INFO L93 Difference]: Finished difference Result 28622 states and 50691 transitions. [2023-12-16 05:36:11,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:36:11,568 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 148 [2023-12-16 05:36:11,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:11,621 INFO L225 Difference]: With dead ends: 28622 [2023-12-16 05:36:11,621 INFO L226 Difference]: Without dead ends: 18739 [2023-12-16 05:36:11,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 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 05:36:11,641 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 1353 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 515 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1372 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 2081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 515 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:11,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1372 Valid, 858 Invalid, 2081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [515 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 05:36:11,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18739 states. [2023-12-16 05:36:12,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18739 to 18590. [2023-12-16 05:36:12,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18590 states, 15284 states have (on average 1.6601020675215912) internal successors, (25373), 15291 states have internal predecessors, (25373), 3278 states have call successors, (3278), 24 states have call predecessors, (3278), 27 states have return successors, (3615), 3274 states have call predecessors, (3615), 3275 states have call successors, (3615) [2023-12-16 05:36:12,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18590 states to 18590 states and 32266 transitions. [2023-12-16 05:36:12,211 INFO L78 Accepts]: Start accepts. Automaton has 18590 states and 32266 transitions. Word has length 148 [2023-12-16 05:36:12,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:12,212 INFO L495 AbstractCegarLoop]: Abstraction has 18590 states and 32266 transitions. [2023-12-16 05:36:12,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 05:36:12,212 INFO L276 IsEmpty]: Start isEmpty. Operand 18590 states and 32266 transitions. [2023-12-16 05:36:12,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-16 05:36:12,235 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:12,235 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:12,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 05:36:12,235 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:12,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:12,236 INFO L85 PathProgramCache]: Analyzing trace with hash -866755144, now seen corresponding path program 1 times [2023-12-16 05:36:12,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:12,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079384550] [2023-12-16 05:36:12,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:12,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:12,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:12,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:12,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:12,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:12,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:12,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:12,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:12,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:12,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 05:36:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:12,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 05:36:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:12,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 05:36:12,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:12,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 05:36:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:12,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 05:36:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:12,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-16 05:36:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:12,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-16 05:36:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:12,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-16 05:36:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:12,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-16 05:36:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:12,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-16 05:36:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:12,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-16 05:36:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:12,310 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 05:36:12,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:12,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079384550] [2023-12-16 05:36:12,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079384550] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:12,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:12,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:36:12,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750535038] [2023-12-16 05:36:12,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:12,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:36:12,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:12,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:36:12,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:36:12,312 INFO L87 Difference]: Start difference. First operand 18590 states and 32266 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 05:36:14,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:14,135 INFO L93 Difference]: Finished difference Result 49255 states and 87012 transitions. [2023-12-16 05:36:14,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:36:14,135 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 149 [2023-12-16 05:36:14,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:14,251 INFO L225 Difference]: With dead ends: 49255 [2023-12-16 05:36:14,251 INFO L226 Difference]: Without dead ends: 33320 [2023-12-16 05:36:14,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 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 05:36:14,396 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 1348 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 1586 mSolverCounterSat, 514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1366 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 2100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 1586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:14,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1366 Valid, 880 Invalid, 2100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [514 Valid, 1586 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 05:36:14,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33320 states. [2023-12-16 05:36:15,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33320 to 33171. [2023-12-16 05:36:15,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33171 states, 27415 states have (on average 1.657340871785519) internal successors, (45436), 27422 states have internal predecessors, (45436), 5728 states have call successors, (5728), 24 states have call predecessors, (5728), 27 states have return successors, (6339), 5724 states have call predecessors, (6339), 5725 states have call successors, (6339) [2023-12-16 05:36:15,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33171 states to 33171 states and 57503 transitions. [2023-12-16 05:36:15,388 INFO L78 Accepts]: Start accepts. Automaton has 33171 states and 57503 transitions. Word has length 149 [2023-12-16 05:36:15,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:15,388 INFO L495 AbstractCegarLoop]: Abstraction has 33171 states and 57503 transitions. [2023-12-16 05:36:15,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 05:36:15,388 INFO L276 IsEmpty]: Start isEmpty. Operand 33171 states and 57503 transitions. [2023-12-16 05:36:15,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-16 05:36:15,418 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:15,418 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:15,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 05:36:15,419 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:15,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:15,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1860725992, now seen corresponding path program 1 times [2023-12-16 05:36:15,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:15,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027258365] [2023-12-16 05:36:15,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:15,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:15,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:15,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:15,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:15,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:15,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:15,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:15,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:15,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 05:36:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:15,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 05:36:15,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:15,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 05:36:15,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:15,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 05:36:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:15,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-16 05:36:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:15,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-16 05:36:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:15,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-16 05:36:15,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:15,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-16 05:36:15,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:15,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-16 05:36:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:15,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-16 05:36:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:15,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-16 05:36:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:15,492 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 05:36:15,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:15,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027258365] [2023-12-16 05:36:15,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027258365] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:15,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:15,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:36:15,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544394325] [2023-12-16 05:36:15,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:15,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:36:15,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:15,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:36:15,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:36:15,494 INFO L87 Difference]: Start difference. First operand 33171 states and 57503 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 05:36:18,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:18,072 INFO L93 Difference]: Finished difference Result 90557 states and 159236 transitions. [2023-12-16 05:36:18,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:36:18,073 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2023-12-16 05:36:18,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:18,274 INFO L225 Difference]: With dead ends: 90557 [2023-12-16 05:36:18,274 INFO L226 Difference]: Without dead ends: 60932 [2023-12-16 05:36:18,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 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 05:36:18,330 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1349 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 1606 mSolverCounterSat, 506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 2112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 1606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:18,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1367 Valid, 886 Invalid, 2112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [506 Valid, 1606 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 05:36:18,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60932 states. [2023-12-16 05:36:20,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60932 to 60783. [2023-12-16 05:36:20,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60783 states, 50514 states have (on average 1.6536405748901295) internal successors, (83532), 50521 states have internal predecessors, (83532), 10241 states have call successors, (10241), 24 states have call predecessors, (10241), 27 states have return successors, (11384), 10237 states have call predecessors, (11384), 10238 states have call successors, (11384) [2023-12-16 05:36:20,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60783 states to 60783 states and 105157 transitions. [2023-12-16 05:36:20,699 INFO L78 Accepts]: Start accepts. Automaton has 60783 states and 105157 transitions. Word has length 150 [2023-12-16 05:36:20,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:20,700 INFO L495 AbstractCegarLoop]: Abstraction has 60783 states and 105157 transitions. [2023-12-16 05:36:20,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 05:36:20,700 INFO L276 IsEmpty]: Start isEmpty. Operand 60783 states and 105157 transitions. [2023-12-16 05:36:20,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-16 05:36:20,739 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:20,740 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, 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 05:36:20,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 05:36:20,740 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:20,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:20,740 INFO L85 PathProgramCache]: Analyzing trace with hash 423398298, now seen corresponding path program 1 times [2023-12-16 05:36:20,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:20,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241937061] [2023-12-16 05:36:20,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:20,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:20,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:20,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:20,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-16 05:36:20,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-16 05:36:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-16 05:36:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 05:36:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 05:36:20,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 05:36:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 05:36:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-16 05:36:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,806 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 05:36:20,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:20,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241937061] [2023-12-16 05:36:20,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241937061] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:20,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:20,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:36:20,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338722228] [2023-12-16 05:36:20,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:20,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:36:20,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:20,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:36:20,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:36:20,808 INFO L87 Difference]: Start difference. First operand 60783 states and 105157 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 05:36:23,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:23,956 INFO L93 Difference]: Finished difference Result 113909 states and 200846 transitions. [2023-12-16 05:36:23,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:36:23,957 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2023-12-16 05:36:23,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:24,339 INFO L225 Difference]: With dead ends: 113909 [2023-12-16 05:36:24,339 INFO L226 Difference]: Without dead ends: 113726 [2023-12-16 05:36:24,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:36:24,378 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 1345 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 1576 mSolverCounterSat, 511 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1363 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 2087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 511 IncrementalHoareTripleChecker+Valid, 1576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:24,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1363 Valid, 879 Invalid, 2087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [511 Valid, 1576 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 05:36:24,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113726 states. [2023-12-16 05:36:27,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113726 to 113577. [2023-12-16 05:36:27,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113577 states, 94940 states have (on average 1.6488729724036233) internal successors, (156544), 94947 states have internal predecessors, (156544), 18609 states have call successors, (18609), 24 states have call predecessors, (18609), 27 states have return successors, (20798), 18605 states have call predecessors, (20798), 18606 states have call successors, (20798) [2023-12-16 05:36:28,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113577 states to 113577 states and 195951 transitions. [2023-12-16 05:36:28,061 INFO L78 Accepts]: Start accepts. Automaton has 113577 states and 195951 transitions. Word has length 133 [2023-12-16 05:36:28,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:28,061 INFO L495 AbstractCegarLoop]: Abstraction has 113577 states and 195951 transitions. [2023-12-16 05:36:28,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 05:36:28,061 INFO L276 IsEmpty]: Start isEmpty. Operand 113577 states and 195951 transitions. [2023-12-16 05:36:28,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 05:36:28,111 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:28,111 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:28,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 05:36:28,111 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:28,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:28,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1877426825, now seen corresponding path program 1 times [2023-12-16 05:36:28,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:28,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975878615] [2023-12-16 05:36:28,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:28,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:28,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:28,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:28,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 05:36:28,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-16 05:36:28,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 05:36:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 05:36:28,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-16 05:36:28,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 05:36:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 05:36:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-16 05:36:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-16 05:36:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-16 05:36:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-16 05:36:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,238 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 05:36:28,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:28,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975878615] [2023-12-16 05:36:28,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975878615] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:28,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:28,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 05:36:28,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693488822] [2023-12-16 05:36:28,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:28,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 05:36:28,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:28,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 05:36:28,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:36:28,239 INFO L87 Difference]: Start difference. First operand 113577 states and 195951 transitions. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (21), 7 states have call predecessors, (21), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 05:36:35,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:35,118 INFO L93 Difference]: Finished difference Result 218795 states and 385280 transitions. [2023-12-16 05:36:35,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-16 05:36:35,118 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (21), 7 states have call predecessors, (21), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2023-12-16 05:36:35,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:36,101 INFO L225 Difference]: With dead ends: 218795 [2023-12-16 05:36:36,102 INFO L226 Difference]: Without dead ends: 218619 [2023-12-16 05:36:36,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=255, Invalid=737, Unknown=0, NotChecked=0, Total=992 [2023-12-16 05:36:36,180 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 2804 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 3564 mSolverCounterSat, 949 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2821 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 4513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 949 IncrementalHoareTripleChecker+Valid, 3564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:36,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2821 Valid, 1566 Invalid, 4513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [949 Valid, 3564 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-16 05:36:36,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218619 states. Received shutdown request... [2023-12-16 05:36:39,733 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 05:36:40,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-16 05:36:42,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218619 to 218315. [2023-12-16 05:36:42,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218315 states, 182546 states have (on average 1.6520274341809735) internal successors, (301571), 182499 states have internal predecessors, (301571), 35718 states have call successors, (35718), 46 states have call predecessors, (35718), 50 states have return successors, (38999), 35769 states have call predecessors, (38999), 35714 states have call successors, (38999) [2023-12-16 05:36:42,773 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 05:36:42,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 05:36:42,774 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 05:36:42,792 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:42,794 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 05:36:42,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:36:42 BoogieIcfgContainer [2023-12-16 05:36:42,796 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 05:36:42,797 INFO L158 Benchmark]: Toolchain (without parser) took 61003.92ms. Allocated memory was 335.5MB in the beginning and 6.0GB in the end (delta: 5.6GB). Free memory was 289.9MB in the beginning and 4.3GB in the end (delta: -4.0GB). Peak memory consumption was 2.8GB. Max. memory is 8.0GB. [2023-12-16 05:36:42,797 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 208.7MB. Free memory was 160.5MB in the beginning and 160.4MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 05:36:42,797 INFO L158 Benchmark]: CACSL2BoogieTranslator took 581.03ms. Allocated memory is still 335.5MB. Free memory was 289.4MB in the beginning and 247.4MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. [2023-12-16 05:36:42,797 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.77ms. Allocated memory is still 335.5MB. Free memory was 247.4MB in the beginning and 241.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 05:36:42,797 INFO L158 Benchmark]: Boogie Preprocessor took 78.67ms. Allocated memory is still 335.5MB. Free memory was 241.2MB in the beginning and 233.8MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 05:36:42,804 INFO L158 Benchmark]: RCFGBuilder took 1008.77ms. Allocated memory is still 335.5MB. Free memory was 233.8MB in the beginning and 244.7MB in the end (delta: -10.8MB). Peak memory consumption was 32.1MB. Max. memory is 8.0GB. [2023-12-16 05:36:42,804 INFO L158 Benchmark]: TraceAbstraction took 59262.51ms. Allocated memory was 335.5MB in the beginning and 6.0GB in the end (delta: 5.6GB). Free memory was 243.6MB in the beginning and 4.3GB in the end (delta: -4.0GB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB. [2023-12-16 05:36:42,805 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 208.7MB. Free memory was 160.5MB in the beginning and 160.4MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 581.03ms. Allocated memory is still 335.5MB. Free memory was 289.4MB in the beginning and 247.4MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 68.77ms. Allocated memory is still 335.5MB. Free memory was 247.4MB in the beginning and 241.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 78.67ms. Allocated memory is still 335.5MB. Free memory was 241.2MB in the beginning and 233.8MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1008.77ms. Allocated memory is still 335.5MB. Free memory was 233.8MB in the beginning and 244.7MB in the end (delta: -10.8MB). Peak memory consumption was 32.1MB. Max. memory is 8.0GB. * TraceAbstraction took 59262.51ms. Allocated memory was 335.5MB in the beginning and 6.0GB in the end (delta: 5.6GB). Free memory was 243.6MB in the beginning and 4.3GB in the end (delta: -4.0GB). Peak memory consumption was 2.7GB. 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,"EmailLib.i","") [48] - GenericResultAtLocation [Line: 460]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [460] - GenericResultAtLocation [Line: 826]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [826] - GenericResultAtLocation [Line: 844]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [844] - GenericResultAtLocation [Line: 1073]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1073] - GenericResultAtLocation [Line: 2153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2153] - GenericResultAtLocation [Line: 2202]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2202] - GenericResultAtLocation [Line: 2548]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [2548] - GenericResultAtLocation [Line: 2607]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2607] - GenericResultAtLocation [Line: 2703]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2703] - GenericResultAtLocation [Line: 2991]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2991] * 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: 2996]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2996). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 25 procedures, 371 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 59.2s, OverallIterations: 21, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.3s, AutomataDifference: 37.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23517 SdHoareTripleChecker+Valid, 23.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23238 mSDsluCounter, 24747 SdHoareTripleChecker+Invalid, 19.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18805 mSDsCounter, 8445 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37084 IncrementalHoareTripleChecker+Invalid, 45529 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8445 mSolverCounterUnsat, 5942 mSDtfsCounter, 37084 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1785 GetRequests, 1508 SyntacticMatches, 0 SemanticMatches, 277 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113577occurred in iteration=20, InterpolantAutomatonStates: 197, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 15.4s AutomataMinimizationTime, 21 MinimizatonAttempts, 2230 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 3445 NumberOfCodeBlocks, 3445 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 3553 ConstructedInterpolants, 0 QuantifiedInterpolants, 5713 SizeOfPredicates, 8 NumberOfNonLiveVariables, 6750 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 28 InterpolantComputations, 20 PerfectInterpolantSequences, 930/954 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