/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_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/email_spec0_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:38:26,775 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:38:26,833 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 05:38:26,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:38:26,837 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:38:26,859 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:38:26,861 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:38:26,861 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:38:26,862 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:38:26,864 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:38:26,865 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:38:26,865 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:38:26,866 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:38:26,867 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:38:26,867 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:38:26,867 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:38:26,867 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:38:26,867 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:38:26,868 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:38:26,868 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:38:26,868 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:38:26,868 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:38:26,869 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:38:26,869 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:38:26,869 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:38:26,869 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:38:26,869 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:38:26,869 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:38:26,869 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:38:26,870 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:38:26,870 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:38:26,871 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:38:26,871 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:38:26,871 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:38:26,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:38:26,871 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:38:26,871 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:38:26,871 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:38:26,872 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:38:26,872 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:38:26,872 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:38:26,872 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:38:26,872 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:38:26,872 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:38:26,873 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:38:26,873 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:38:26,873 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:38:27,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:38:27,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:38:27,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:38:27,056 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:38:27,056 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:38:27,058 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product35.cil.c [2023-12-25 05:38:28,140 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:38:28,376 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:38:28,377 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product35.cil.c [2023-12-25 05:38:28,395 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db1c8636b/22441ce079634dafb5a26a1f1e159373/FLAGf4f8ec220 [2023-12-25 05:38:28,406 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db1c8636b/22441ce079634dafb5a26a1f1e159373 [2023-12-25 05:38:28,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:38:28,409 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:38:28,410 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:38:28,410 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:38:28,413 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:38:28,414 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:38:28" (1/1) ... [2023-12-25 05:38:28,414 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40445c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:28, skipping insertion in model container [2023-12-25 05:38:28,415 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:38:28" (1/1) ... [2023-12-25 05:38:28,481 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:38:28,705 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_spec0_product35.cil.c[5573,5586] [2023-12-25 05:38:29,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:38:29,044 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:38:29,056 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:38:29,074 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_spec0_product35.cil.c[5573,5586] [2023-12-25 05:38:29,124 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:38:29,129 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:38:29,136 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2023-12-25 05:38:29,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [66] [2023-12-25 05:38:29,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [225] [2023-12-25 05:38:29,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [234] [2023-12-25 05:38:29,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [600] [2023-12-25 05:38:29,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [620] [2023-12-25 05:38:29,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [658] [2023-12-25 05:38:29,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1108] [2023-12-25 05:38:29,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2179] [2023-12-25 05:38:29,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2412] [2023-12-25 05:38:29,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2710] [2023-12-25 05:38:29,152 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_spec0_product35.cil.c[5573,5586] [2023-12-25 05:38:29,222 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:38:29,260 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:38:29,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:29 WrapperNode [2023-12-25 05:38:29,263 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:38:29,264 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:38:29,264 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:38:29,264 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:38:29,269 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:29" (1/1) ... [2023-12-25 05:38:29,299 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:29" (1/1) ... [2023-12-25 05:38:29,349 INFO L138 Inliner]: procedures = 139, calls = 226, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1065 [2023-12-25 05:38:29,350 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:38:29,350 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:38:29,350 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:38:29,350 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:38:29,358 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:29" (1/1) ... [2023-12-25 05:38:29,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:29" (1/1) ... [2023-12-25 05:38:29,363 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:29" (1/1) ... [2023-12-25 05:38:29,402 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]. [2023-12-25 05:38:29,402 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:29" (1/1) ... [2023-12-25 05:38:29,402 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:29" (1/1) ... [2023-12-25 05:38:29,415 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:29" (1/1) ... [2023-12-25 05:38:29,422 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:29" (1/1) ... [2023-12-25 05:38:29,426 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:29" (1/1) ... [2023-12-25 05:38:29,430 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:29" (1/1) ... [2023-12-25 05:38:29,447 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:38:29,465 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:38:29,465 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:38:29,465 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:38:29,466 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:29" (1/1) ... [2023-12-25 05:38:29,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:38:29,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:38:29,489 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) [2023-12-25 05:38:29,498 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 [2023-12-25 05:38:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-25 05:38:29,515 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-25 05:38:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-25 05:38:29,516 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-25 05:38:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-25 05:38:29,516 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-25 05:38:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-25 05:38:29,516 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-25 05:38:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-25 05:38:29,517 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-25 05:38:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-25 05:38:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-25 05:38:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-12-25 05:38:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-12-25 05:38:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-25 05:38:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-25 05:38:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-25 05:38:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-25 05:38:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-25 05:38:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-25 05:38:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-25 05:38:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-25 05:38:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-25 05:38:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-25 05:38:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-25 05:38:29,520 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-25 05:38:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-25 05:38:29,520 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-25 05:38:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-25 05:38:29,520 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-25 05:38:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-25 05:38:29,520 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-25 05:38:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:38:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-25 05:38:29,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-25 05:38:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-25 05:38:29,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-25 05:38:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-25 05:38:29,520 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-25 05:38:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-25 05:38:29,521 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-25 05:38:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-25 05:38:29,521 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-25 05:38:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-25 05:38:29,521 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-25 05:38:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:38:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:38:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:38:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:38:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-25 05:38:29,521 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-25 05:38:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-25 05:38:29,522 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-25 05:38:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-25 05:38:29,522 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-25 05:38:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-25 05:38:29,522 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-25 05:38:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-25 05:38:29,522 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-25 05:38:29,523 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-25 05:38:29,523 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-25 05:38:29,523 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-25 05:38:29,524 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-25 05:38:29,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:38:29,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:38:29,685 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:38:29,687 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:38:30,408 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:38:30,487 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:38:30,487 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:38:30,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:38:30 BoogieIcfgContainer [2023-12-25 05:38:30,488 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:38:30,490 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:38:30,490 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:38:30,492 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:38:30,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:38:28" (1/3) ... [2023-12-25 05:38:30,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9eb7a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:38:30, skipping insertion in model container [2023-12-25 05:38:30,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:29" (2/3) ... [2023-12-25 05:38:30,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9eb7a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:38:30, skipping insertion in model container [2023-12-25 05:38:30,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:38:30" (3/3) ... [2023-12-25 05:38:30,495 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product35.cil.c [2023-12-25 05:38:30,509 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:38:30,509 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:38:30,565 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:38:30,570 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;@59c60cea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:38:30,570 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:38:30,579 INFO L276 IsEmpty]: Start isEmpty. Operand has 431 states, 326 states have (on average 1.5889570552147239) internal successors, (518), 331 states have internal predecessors, (518), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-25 05:38:30,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-25 05:38:30,607 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:30,608 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:30,608 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:30,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:30,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1975237755, now seen corresponding path program 1 times [2023-12-25 05:38:30,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:30,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [379408341] [2023-12-25 05:38:30,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:30,627 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:30,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:30,630 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:38:30,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-25 05:38:31,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:31,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:38:31,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:31,110 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-25 05:38:31,110 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:31,111 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:31,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [379408341] [2023-12-25 05:38:31,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [379408341] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:31,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:31,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:38:31,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198317038] [2023-12-25 05:38:31,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:31,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:38:31,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:31,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:38:31,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:38:31,148 INFO L87 Difference]: Start difference. First operand has 431 states, 326 states have (on average 1.5889570552147239) internal successors, (518), 331 states have internal predecessors, (518), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) Second operand has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-25 05:38:31,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:31,269 INFO L93 Difference]: Finished difference Result 674 states and 1024 transitions. [2023-12-25 05:38:31,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:38:31,271 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 168 [2023-12-25 05:38:31,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:31,283 INFO L225 Difference]: With dead ends: 674 [2023-12-25 05:38:31,283 INFO L226 Difference]: Without dead ends: 428 [2023-12-25 05:38:31,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:38:31,290 INFO L413 NwaCegarLoop]: 642 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:31,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 642 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:31,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2023-12-25 05:38:31,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2023-12-25 05:38:31,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 324 states have (on average 1.5771604938271604) internal successors, (511), 328 states have internal predecessors, (511), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-25 05:38:31,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 658 transitions. [2023-12-25 05:38:31,346 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 658 transitions. Word has length 168 [2023-12-25 05:38:31,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:31,347 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 658 transitions. [2023-12-25 05:38:31,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-25 05:38:31,348 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 658 transitions. [2023-12-25 05:38:31,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-25 05:38:31,352 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:31,352 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:31,360 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-25 05:38:31,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:31,562 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:31,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:31,562 INFO L85 PathProgramCache]: Analyzing trace with hash 435258713, now seen corresponding path program 1 times [2023-12-25 05:38:31,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:31,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858174380] [2023-12-25 05:38:31,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:31,563 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:31,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:31,565 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:38:31,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-25 05:38:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:31,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:38:31,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:31,955 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-25 05:38:31,955 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:31,955 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:31,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858174380] [2023-12-25 05:38:31,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1858174380] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:31,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:31,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:38:31,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209466991] [2023-12-25 05:38:31,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:31,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:38:31,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:31,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:38:31,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:38:31,960 INFO L87 Difference]: Start difference. First operand 428 states and 658 transitions. Second operand has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-25 05:38:32,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:32,101 INFO L93 Difference]: Finished difference Result 851 states and 1310 transitions. [2023-12-25 05:38:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:38:32,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 169 [2023-12-25 05:38:32,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:32,104 INFO L225 Difference]: With dead ends: 851 [2023-12-25 05:38:32,104 INFO L226 Difference]: Without dead ends: 430 [2023-12-25 05:38:32,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:38:32,108 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 8 mSDsluCounter, 1879 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2509 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:32,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2509 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:32,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2023-12-25 05:38:32,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2023-12-25 05:38:32,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 325 states have (on average 1.5753846153846154) internal successors, (512), 330 states have internal predecessors, (512), 74 states have call successors, (74), 29 states have call predecessors, (74), 30 states have return successors, (75), 72 states have call predecessors, (75), 73 states have call successors, (75) [2023-12-25 05:38:32,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 661 transitions. [2023-12-25 05:38:32,127 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 661 transitions. Word has length 169 [2023-12-25 05:38:32,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:32,127 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 661 transitions. [2023-12-25 05:38:32,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-25 05:38:32,127 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 661 transitions. [2023-12-25 05:38:32,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-25 05:38:32,129 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:32,130 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:32,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:32,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:32,338 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:32,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:32,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1293225446, now seen corresponding path program 1 times [2023-12-25 05:38:32,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:32,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [798326842] [2023-12-25 05:38:32,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:32,340 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:32,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:32,341 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:38:32,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-25 05:38:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:32,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:38:32,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:32,665 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-25 05:38:32,666 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:32,667 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:32,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [798326842] [2023-12-25 05:38:32,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [798326842] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:32,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:32,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:38:32,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123460793] [2023-12-25 05:38:32,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:32,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:38:32,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:32,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:38:32,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:38:32,671 INFO L87 Difference]: Start difference. First operand 430 states and 661 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-25 05:38:32,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:32,803 INFO L93 Difference]: Finished difference Result 853 states and 1314 transitions. [2023-12-25 05:38:32,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:38:32,803 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 152 [2023-12-25 05:38:32,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:32,807 INFO L225 Difference]: With dead ends: 853 [2023-12-25 05:38:32,807 INFO L226 Difference]: Without dead ends: 432 [2023-12-25 05:38:32,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:38:32,811 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 8 mSDsluCounter, 1867 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2495 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:32,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2495 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:32,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2023-12-25 05:38:32,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2023-12-25 05:38:32,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 326 states have (on average 1.5736196319018405) internal successors, (513), 332 states have internal predecessors, (513), 74 states have call successors, (74), 29 states have call predecessors, (74), 31 states have return successors, (79), 72 states have call predecessors, (79), 73 states have call successors, (79) [2023-12-25 05:38:32,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 666 transitions. [2023-12-25 05:38:32,835 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 666 transitions. Word has length 152 [2023-12-25 05:38:32,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:32,835 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 666 transitions. [2023-12-25 05:38:32,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-25 05:38:32,835 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 666 transitions. [2023-12-25 05:38:32,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-25 05:38:32,838 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:32,838 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:32,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:33,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:33,039 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:33,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:33,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1772350305, now seen corresponding path program 1 times [2023-12-25 05:38:33,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:33,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [644945230] [2023-12-25 05:38:33,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:33,040 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:33,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:33,041 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:38:33,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-25 05:38:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:33,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:38:33,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:33,314 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-25 05:38:33,315 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:33,315 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:33,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [644945230] [2023-12-25 05:38:33,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [644945230] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:33,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:33,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:38:33,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377490376] [2023-12-25 05:38:33,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:33,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:38:33,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:33,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:38:33,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:38:33,333 INFO L87 Difference]: Start difference. First operand 432 states and 666 transitions. Second operand has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-25 05:38:33,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:33,431 INFO L93 Difference]: Finished difference Result 845 states and 1304 transitions. [2023-12-25 05:38:33,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:38:33,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 153 [2023-12-25 05:38:33,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:33,434 INFO L225 Difference]: With dead ends: 845 [2023-12-25 05:38:33,434 INFO L226 Difference]: Without dead ends: 432 [2023-12-25 05:38:33,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:38:33,438 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 8 mSDsluCounter, 1879 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2509 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:33,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2509 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:33,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2023-12-25 05:38:33,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2023-12-25 05:38:33,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 326 states have (on average 1.5736196319018405) internal successors, (513), 332 states have internal predecessors, (513), 74 states have call successors, (74), 29 states have call predecessors, (74), 31 states have return successors, (78), 72 states have call predecessors, (78), 73 states have call successors, (78) [2023-12-25 05:38:33,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 665 transitions. [2023-12-25 05:38:33,460 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 665 transitions. Word has length 153 [2023-12-25 05:38:33,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:33,460 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 665 transitions. [2023-12-25 05:38:33,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-25 05:38:33,460 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 665 transitions. [2023-12-25 05:38:33,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-25 05:38:33,464 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:33,464 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:33,476 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:33,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:33,677 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:33,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:33,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1719284690, now seen corresponding path program 1 times [2023-12-25 05:38:33,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:33,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82604930] [2023-12-25 05:38:33,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:33,678 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:33,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:33,679 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:38:33,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-25 05:38:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:33,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:38:33,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:33,969 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 05:38:33,969 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:33,969 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:33,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [82604930] [2023-12-25 05:38:33,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [82604930] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:33,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:33,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:38:33,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866299627] [2023-12-25 05:38:33,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:33,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:38:33,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:33,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:38:33,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:38:33,971 INFO L87 Difference]: Start difference. First operand 432 states and 665 transitions. Second operand has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-25 05:38:34,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:34,074 INFO L93 Difference]: Finished difference Result 847 states and 1307 transitions. [2023-12-25 05:38:34,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:38:34,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 172 [2023-12-25 05:38:34,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:34,078 INFO L225 Difference]: With dead ends: 847 [2023-12-25 05:38:34,078 INFO L226 Difference]: Without dead ends: 434 [2023-12-25 05:38:34,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:38:34,080 INFO L413 NwaCegarLoop]: 631 mSDtfsCounter, 6 mSDsluCounter, 1880 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2511 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 [2023-12-25 05:38:34,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2511 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:34,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2023-12-25 05:38:34,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2023-12-25 05:38:34,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 327 states have (on average 1.5718654434250765) internal successors, (514), 334 states have internal predecessors, (514), 74 states have call successors, (74), 29 states have call predecessors, (74), 32 states have return successors, (80), 72 states have call predecessors, (80), 73 states have call successors, (80) [2023-12-25 05:38:34,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 668 transitions. [2023-12-25 05:38:34,095 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 668 transitions. Word has length 172 [2023-12-25 05:38:34,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:34,097 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 668 transitions. [2023-12-25 05:38:34,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-25 05:38:34,097 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 668 transitions. [2023-12-25 05:38:34,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-12-25 05:38:34,100 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:34,100 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:34,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:34,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:34,308 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:34,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:34,308 INFO L85 PathProgramCache]: Analyzing trace with hash -307837097, now seen corresponding path program 1 times [2023-12-25 05:38:34,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:34,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [959534695] [2023-12-25 05:38:34,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:34,309 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:34,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:34,310 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:38:34,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-25 05:38:34,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:34,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:38:34,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:34,651 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-12-25 05:38:34,652 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:34,652 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:34,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [959534695] [2023-12-25 05:38:34,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [959534695] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:34,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:34,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:38:34,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398197304] [2023-12-25 05:38:34,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:34,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:38:34,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:34,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:38:34,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:38:34,654 INFO L87 Difference]: Start difference. First operand 434 states and 668 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-25 05:38:34,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:34,763 INFO L93 Difference]: Finished difference Result 845 states and 1302 transitions. [2023-12-25 05:38:34,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:38:34,763 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 173 [2023-12-25 05:38:34,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:34,766 INFO L225 Difference]: With dead ends: 845 [2023-12-25 05:38:34,766 INFO L226 Difference]: Without dead ends: 434 [2023-12-25 05:38:34,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:38:34,770 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 8 mSDsluCounter, 1868 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2496 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:34,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2496 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:34,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2023-12-25 05:38:34,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2023-12-25 05:38:34,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 327 states have (on average 1.5718654434250765) internal successors, (514), 334 states have internal predecessors, (514), 74 states have call successors, (74), 29 states have call predecessors, (74), 32 states have return successors, (79), 72 states have call predecessors, (79), 73 states have call successors, (79) [2023-12-25 05:38:34,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 667 transitions. [2023-12-25 05:38:34,782 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 667 transitions. Word has length 173 [2023-12-25 05:38:34,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:34,784 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 667 transitions. [2023-12-25 05:38:34,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-25 05:38:34,784 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 667 transitions. [2023-12-25 05:38:34,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-25 05:38:34,786 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:34,789 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:34,798 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-25 05:38:34,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:34,997 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:34,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:34,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1005910334, now seen corresponding path program 2 times [2023-12-25 05:38:34,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:34,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786402064] [2023-12-25 05:38:34,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 05:38:34,998 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:34,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:35,000 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:38:35,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-25 05:38:35,179 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 05:38:35,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 05:38:35,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:35,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:35,198 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-25 05:38:35,198 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:35,199 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:35,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786402064] [2023-12-25 05:38:35,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [786402064] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:35,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:35,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:35,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745859185] [2023-12-25 05:38:35,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:35,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:35,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:35,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:35,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:35,200 INFO L87 Difference]: Start difference. First operand 434 states and 667 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-25 05:38:35,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:35,243 INFO L93 Difference]: Finished difference Result 676 states and 1017 transitions. [2023-12-25 05:38:35,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:35,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 174 [2023-12-25 05:38:35,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:35,246 INFO L225 Difference]: With dead ends: 676 [2023-12-25 05:38:35,246 INFO L226 Difference]: Without dead ends: 436 [2023-12-25 05:38:35,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:35,247 INFO L413 NwaCegarLoop]: 639 mSDtfsCounter, 0 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1277 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:35,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1277 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:35,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2023-12-25 05:38:35,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 436. [2023-12-25 05:38:35,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 329 states have (on average 1.56838905775076) internal successors, (516), 336 states have internal predecessors, (516), 74 states have call successors, (74), 29 states have call predecessors, (74), 32 states have return successors, (79), 72 states have call predecessors, (79), 73 states have call successors, (79) [2023-12-25 05:38:35,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 669 transitions. [2023-12-25 05:38:35,258 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 669 transitions. Word has length 174 [2023-12-25 05:38:35,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:35,258 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 669 transitions. [2023-12-25 05:38:35,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-25 05:38:35,259 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 669 transitions. [2023-12-25 05:38:35,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-25 05:38:35,261 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:35,261 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:35,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:35,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:35,465 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:35,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:35,466 INFO L85 PathProgramCache]: Analyzing trace with hash 463563478, now seen corresponding path program 1 times [2023-12-25 05:38:35,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:35,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [998716766] [2023-12-25 05:38:35,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:35,467 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:35,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:35,468 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:38:35,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-25 05:38:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:35,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 712 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:38:35,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:35,787 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-12-25 05:38:35,787 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:35,787 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:35,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [998716766] [2023-12-25 05:38:35,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [998716766] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:35,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:35,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:38:35,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734855101] [2023-12-25 05:38:35,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:35,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:38:35,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:35,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:38:35,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:38:35,789 INFO L87 Difference]: Start difference. First operand 436 states and 669 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-25 05:38:35,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:35,908 INFO L93 Difference]: Finished difference Result 851 states and 1311 transitions. [2023-12-25 05:38:35,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:38:35,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 181 [2023-12-25 05:38:35,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:35,911 INFO L225 Difference]: With dead ends: 851 [2023-12-25 05:38:35,911 INFO L226 Difference]: Without dead ends: 438 [2023-12-25 05:38:35,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:38:35,912 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 6 mSDsluCounter, 1869 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2498 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:35,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2498 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:35,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2023-12-25 05:38:35,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 438. [2023-12-25 05:38:35,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 330 states have (on average 1.5666666666666667) internal successors, (517), 338 states have internal predecessors, (517), 74 states have call successors, (74), 29 states have call predecessors, (74), 33 states have return successors, (83), 72 states have call predecessors, (83), 73 states have call successors, (83) [2023-12-25 05:38:35,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 674 transitions. [2023-12-25 05:38:35,924 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 674 transitions. Word has length 181 [2023-12-25 05:38:35,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:35,924 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 674 transitions. [2023-12-25 05:38:35,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-25 05:38:35,924 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 674 transitions. [2023-12-25 05:38:35,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-25 05:38:35,926 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:35,926 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:35,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:36,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:36,134 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:36,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:36,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1337838439, now seen corresponding path program 1 times [2023-12-25 05:38:36,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:36,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1929145922] [2023-12-25 05:38:36,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:36,135 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:36,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:36,136 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:38:36,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-25 05:38:36,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:36,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:36,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:36,410 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 05:38:36,410 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:36,410 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:36,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1929145922] [2023-12-25 05:38:36,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1929145922] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:36,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:36,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:36,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004858759] [2023-12-25 05:38:36,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:36,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:36,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:36,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:36,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:36,412 INFO L87 Difference]: Start difference. First operand 438 states and 674 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-25 05:38:36,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:36,462 INFO L93 Difference]: Finished difference Result 924 states and 1441 transitions. [2023-12-25 05:38:36,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:36,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 164 [2023-12-25 05:38:36,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:36,465 INFO L225 Difference]: With dead ends: 924 [2023-12-25 05:38:36,465 INFO L226 Difference]: Without dead ends: 512 [2023-12-25 05:38:36,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:36,467 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 136 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:36,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1253 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:36,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2023-12-25 05:38:36,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 507. [2023-12-25 05:38:36,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 385 states have (on average 1.587012987012987) internal successors, (611), 393 states have internal predecessors, (611), 88 states have call successors, (88), 29 states have call predecessors, (88), 33 states have return successors, (99), 86 states have call predecessors, (99), 87 states have call successors, (99) [2023-12-25 05:38:36,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 798 transitions. [2023-12-25 05:38:36,482 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 798 transitions. Word has length 164 [2023-12-25 05:38:36,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:36,482 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 798 transitions. [2023-12-25 05:38:36,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-25 05:38:36,482 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 798 transitions. [2023-12-25 05:38:36,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-25 05:38:36,484 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:36,485 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:36,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:36,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:36,692 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:36,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:36,696 INFO L85 PathProgramCache]: Analyzing trace with hash 2081430921, now seen corresponding path program 1 times [2023-12-25 05:38:36,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:36,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [371383976] [2023-12-25 05:38:36,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:36,697 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:36,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:36,698 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:38:36,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-25 05:38:36,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:36,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:38:36,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:37,034 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-25 05:38:37,035 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:37,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:37,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [371383976] [2023-12-25 05:38:37,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [371383976] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:37,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:37,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:38:37,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242601019] [2023-12-25 05:38:37,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:37,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:38:37,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:37,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:38:37,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:38:37,036 INFO L87 Difference]: Start difference. First operand 507 states and 798 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-25 05:38:37,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:37,136 INFO L93 Difference]: Finished difference Result 1006 states and 1574 transitions. [2023-12-25 05:38:37,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:38:37,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 165 [2023-12-25 05:38:37,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:37,140 INFO L225 Difference]: With dead ends: 1006 [2023-12-25 05:38:37,140 INFO L226 Difference]: Without dead ends: 523 [2023-12-25 05:38:37,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:38:37,142 INFO L413 NwaCegarLoop]: 639 mSDtfsCounter, 619 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:37,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 1293 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:37,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2023-12-25 05:38:37,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 515. [2023-12-25 05:38:37,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 392 states have (on average 1.5739795918367347) internal successors, (617), 399 states have internal predecessors, (617), 88 states have call successors, (88), 31 states have call predecessors, (88), 34 states have return successors, (95), 86 states have call predecessors, (95), 87 states have call successors, (95) [2023-12-25 05:38:37,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 800 transitions. [2023-12-25 05:38:37,161 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 800 transitions. Word has length 165 [2023-12-25 05:38:37,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:37,161 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 800 transitions. [2023-12-25 05:38:37,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-25 05:38:37,161 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 800 transitions. [2023-12-25 05:38:37,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-25 05:38:37,163 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:37,163 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:37,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:37,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:37,371 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:37,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:37,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1753069520, now seen corresponding path program 1 times [2023-12-25 05:38:37,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:37,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491776478] [2023-12-25 05:38:37,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:37,372 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:37,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:37,373 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:38:37,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-25 05:38:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:37,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:38:37,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:37,656 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 05:38:37,656 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:38:37,734 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 05:38:37,735 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:37,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1491776478] [2023-12-25 05:38:37,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1491776478] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:38:37,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:38:37,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-25 05:38:37,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395403699] [2023-12-25 05:38:37,735 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:38:37,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:38:37,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:37,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:38:37,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:38:37,736 INFO L87 Difference]: Start difference. First operand 515 states and 800 transitions. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-25 05:38:38,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:38,010 INFO L93 Difference]: Finished difference Result 1190 states and 1914 transitions. [2023-12-25 05:38:38,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:38:38,011 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 166 [2023-12-25 05:38:38,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:38,016 INFO L225 Difference]: With dead ends: 1190 [2023-12-25 05:38:38,016 INFO L226 Difference]: Without dead ends: 950 [2023-12-25 05:38:38,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:38:38,018 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 466 mSDsluCounter, 2103 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 2768 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:38,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 2768 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:38:38,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2023-12-25 05:38:38,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 935. [2023-12-25 05:38:38,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 733 states have (on average 1.626193724420191) internal successors, (1192), 740 states have internal predecessors, (1192), 167 states have call successors, (167), 31 states have call predecessors, (167), 34 states have return successors, (184), 165 states have call predecessors, (184), 166 states have call successors, (184) [2023-12-25 05:38:38,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1543 transitions. [2023-12-25 05:38:38,082 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1543 transitions. Word has length 166 [2023-12-25 05:38:38,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:38,082 INFO L495 AbstractCegarLoop]: Abstraction has 935 states and 1543 transitions. [2023-12-25 05:38:38,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-25 05:38:38,083 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1543 transitions. [2023-12-25 05:38:38,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-25 05:38:38,088 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:38,088 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:38,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:38,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:38,295 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:38,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:38,296 INFO L85 PathProgramCache]: Analyzing trace with hash -844440290, now seen corresponding path program 1 times [2023-12-25 05:38:38,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:38,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [558689240] [2023-12-25 05:38:38,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:38,296 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:38,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:38,297 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:38:38,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-25 05:38:38,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:38,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:38,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:38,557 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 05:38:38,557 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:38,557 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:38,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [558689240] [2023-12-25 05:38:38,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [558689240] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:38,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:38,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:38,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841456417] [2023-12-25 05:38:38,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:38,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:38,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:38,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:38,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:38,559 INFO L87 Difference]: Start difference. First operand 935 states and 1543 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-25 05:38:38,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:38,638 INFO L93 Difference]: Finished difference Result 2201 states and 3699 transitions. [2023-12-25 05:38:38,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:38,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 169 [2023-12-25 05:38:38,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:38,644 INFO L225 Difference]: With dead ends: 2201 [2023-12-25 05:38:38,645 INFO L226 Difference]: Without dead ends: 1342 [2023-12-25 05:38:38,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:38,649 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 130 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:38,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1278 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:38,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2023-12-25 05:38:38,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1337. [2023-12-25 05:38:38,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 1056 states have (on average 1.646780303030303) internal successors, (1739), 1063 states have internal predecessors, (1739), 246 states have call successors, (246), 31 states have call predecessors, (246), 34 states have return successors, (273), 244 states have call predecessors, (273), 245 states have call successors, (273) [2023-12-25 05:38:38,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 2258 transitions. [2023-12-25 05:38:38,707 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 2258 transitions. Word has length 169 [2023-12-25 05:38:38,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:38,707 INFO L495 AbstractCegarLoop]: Abstraction has 1337 states and 2258 transitions. [2023-12-25 05:38:38,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-25 05:38:38,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 2258 transitions. [2023-12-25 05:38:38,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-12-25 05:38:38,714 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:38,714 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:38,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:38,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:38,922 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:38,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:38,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1002525377, now seen corresponding path program 1 times [2023-12-25 05:38:38,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:38,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562283648] [2023-12-25 05:38:38,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:38,923 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:38,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:38,924 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:38:38,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-25 05:38:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:39,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:39,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:39,192 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 05:38:39,192 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:39,192 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:39,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562283648] [2023-12-25 05:38:39,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562283648] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:39,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:39,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:39,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630586963] [2023-12-25 05:38:39,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:39,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:39,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:39,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:39,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:39,195 INFO L87 Difference]: Start difference. First operand 1337 states and 2258 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-25 05:38:39,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:39,322 INFO L93 Difference]: Finished difference Result 3199 states and 5445 transitions. [2023-12-25 05:38:39,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:39,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 170 [2023-12-25 05:38:39,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:39,329 INFO L225 Difference]: With dead ends: 3199 [2023-12-25 05:38:39,330 INFO L226 Difference]: Without dead ends: 1988 [2023-12-25 05:38:39,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:39,333 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 128 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:39,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1265 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:39,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1988 states. [2023-12-25 05:38:39,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1988 to 1983. [2023-12-25 05:38:39,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1983 states, 1583 states have (on average 1.655085281111813) internal successors, (2620), 1590 states have internal predecessors, (2620), 365 states have call successors, (365), 31 states have call predecessors, (365), 34 states have return successors, (392), 363 states have call predecessors, (392), 364 states have call successors, (392) [2023-12-25 05:38:39,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1983 states to 1983 states and 3377 transitions. [2023-12-25 05:38:39,406 INFO L78 Accepts]: Start accepts. Automaton has 1983 states and 3377 transitions. Word has length 170 [2023-12-25 05:38:39,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:39,406 INFO L495 AbstractCegarLoop]: Abstraction has 1983 states and 3377 transitions. [2023-12-25 05:38:39,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-25 05:38:39,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1983 states and 3377 transitions. [2023-12-25 05:38:39,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-12-25 05:38:39,415 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:39,416 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:39,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:39,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:39,622 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:39,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:39,623 INFO L85 PathProgramCache]: Analyzing trace with hash -943015363, now seen corresponding path program 1 times [2023-12-25 05:38:39,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:39,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1703077026] [2023-12-25 05:38:39,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:39,623 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:39,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:39,624 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:38:39,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 05:38:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:39,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:39,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:39,900 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-25 05:38:39,901 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:39,901 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:39,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1703077026] [2023-12-25 05:38:39,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1703077026] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:39,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:39,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:39,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039921907] [2023-12-25 05:38:39,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:39,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:39,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:39,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:39,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:39,902 INFO L87 Difference]: Start difference. First operand 1983 states and 3377 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-25 05:38:40,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:40,030 INFO L93 Difference]: Finished difference Result 4712 states and 8096 transitions. [2023-12-25 05:38:40,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:40,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 189 [2023-12-25 05:38:40,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:40,044 INFO L225 Difference]: With dead ends: 4712 [2023-12-25 05:38:40,044 INFO L226 Difference]: Without dead ends: 2981 [2023-12-25 05:38:40,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:40,052 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 126 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:40,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1260 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:40,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2023-12-25 05:38:40,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 2976. [2023-12-25 05:38:40,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2976 states, 2414 states have (on average 1.6619718309859155) internal successors, (4012), 2421 states have internal predecessors, (4012), 527 states have call successors, (527), 31 states have call predecessors, (527), 34 states have return successors, (570), 525 states have call predecessors, (570), 526 states have call successors, (570) [2023-12-25 05:38:40,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2976 states to 2976 states and 5109 transitions. [2023-12-25 05:38:40,203 INFO L78 Accepts]: Start accepts. Automaton has 2976 states and 5109 transitions. Word has length 189 [2023-12-25 05:38:40,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:40,203 INFO L495 AbstractCegarLoop]: Abstraction has 2976 states and 5109 transitions. [2023-12-25 05:38:40,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-25 05:38:40,203 INFO L276 IsEmpty]: Start isEmpty. Operand 2976 states and 5109 transitions. [2023-12-25 05:38:40,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-25 05:38:40,217 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:40,217 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:40,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:40,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:40,424 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:40,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:40,425 INFO L85 PathProgramCache]: Analyzing trace with hash -2147416512, now seen corresponding path program 1 times [2023-12-25 05:38:40,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:40,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655068842] [2023-12-25 05:38:40,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:40,425 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:40,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:40,426 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:38:40,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-25 05:38:40,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:40,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:40,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:40,698 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 05:38:40,698 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:40,698 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:40,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [655068842] [2023-12-25 05:38:40,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [655068842] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:40,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:40,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:40,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907403390] [2023-12-25 05:38:40,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:40,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:40,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:40,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:40,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:40,700 INFO L87 Difference]: Start difference. First operand 2976 states and 5109 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-25 05:38:40,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:40,888 INFO L93 Difference]: Finished difference Result 7106 states and 12298 transitions. [2023-12-25 05:38:40,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:40,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 172 [2023-12-25 05:38:40,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:40,908 INFO L225 Difference]: With dead ends: 7106 [2023-12-25 05:38:40,908 INFO L226 Difference]: Without dead ends: 4588 [2023-12-25 05:38:40,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:40,921 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 124 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:40,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1263 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:40,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4588 states. [2023-12-25 05:38:41,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4588 to 4583. [2023-12-25 05:38:41,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4583 states, 3776 states have (on average 1.6671080508474576) internal successors, (6295), 3783 states have internal predecessors, (6295), 772 states have call successors, (772), 31 states have call predecessors, (772), 34 states have return successors, (841), 770 states have call predecessors, (841), 771 states have call successors, (841) [2023-12-25 05:38:41,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4583 states to 4583 states and 7908 transitions. [2023-12-25 05:38:41,117 INFO L78 Accepts]: Start accepts. Automaton has 4583 states and 7908 transitions. Word has length 172 [2023-12-25 05:38:41,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:41,118 INFO L495 AbstractCegarLoop]: Abstraction has 4583 states and 7908 transitions. [2023-12-25 05:38:41,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-25 05:38:41,119 INFO L276 IsEmpty]: Start isEmpty. Operand 4583 states and 7908 transitions. [2023-12-25 05:38:41,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-12-25 05:38:41,139 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:41,139 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:41,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:41,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:41,346 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:41,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:41,346 INFO L85 PathProgramCache]: Analyzing trace with hash 738783961, now seen corresponding path program 1 times [2023-12-25 05:38:41,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:41,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [145872981] [2023-12-25 05:38:41,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:41,347 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:41,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:41,348 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:38:41,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-25 05:38:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:41,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:41,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:41,666 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-25 05:38:41,666 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:41,666 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:41,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [145872981] [2023-12-25 05:38:41,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [145872981] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:41,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:41,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:41,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207055557] [2023-12-25 05:38:41,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:41,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:41,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:41,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:41,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:41,668 INFO L87 Difference]: Start difference. First operand 4583 states and 7908 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-25 05:38:41,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:41,890 INFO L93 Difference]: Finished difference Result 11152 states and 19358 transitions. [2023-12-25 05:38:41,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:41,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 191 [2023-12-25 05:38:41,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:41,933 INFO L225 Difference]: With dead ends: 11152 [2023-12-25 05:38:41,934 INFO L226 Difference]: Without dead ends: 7326 [2023-12-25 05:38:41,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:41,945 INFO L413 NwaCegarLoop]: 642 mSDtfsCounter, 122 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1267 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:41,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1267 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:41,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7326 states. [2023-12-25 05:38:42,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7326 to 7321. [2023-12-25 05:38:42,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 6021 states have (on average 1.661684105630294) internal successors, (10005), 6028 states have internal predecessors, (10005), 1265 states have call successors, (1265), 31 states have call predecessors, (1265), 34 states have return successors, (1378), 1263 states have call predecessors, (1378), 1264 states have call successors, (1378) [2023-12-25 05:38:42,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 12648 transitions. [2023-12-25 05:38:42,255 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 12648 transitions. Word has length 191 [2023-12-25 05:38:42,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:42,255 INFO L495 AbstractCegarLoop]: Abstraction has 7321 states and 12648 transitions. [2023-12-25 05:38:42,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-25 05:38:42,255 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 12648 transitions. [2023-12-25 05:38:42,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-25 05:38:42,287 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:42,287 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:42,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:42,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:42,493 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:42,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:42,495 INFO L85 PathProgramCache]: Analyzing trace with hash 708116132, now seen corresponding path program 1 times [2023-12-25 05:38:42,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:42,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410128334] [2023-12-25 05:38:42,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:42,496 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:42,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:42,497 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:38:42,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-25 05:38:42,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:42,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:42,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:42,770 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 05:38:42,770 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:42,770 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:42,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410128334] [2023-12-25 05:38:42,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410128334] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:42,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:42,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:42,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173655459] [2023-12-25 05:38:42,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:42,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:42,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:42,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:42,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:42,772 INFO L87 Difference]: Start difference. First operand 7321 states and 12648 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-25 05:38:43,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:43,170 INFO L93 Difference]: Finished difference Result 18455 states and 32099 transitions. [2023-12-25 05:38:43,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:43,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 174 [2023-12-25 05:38:43,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:43,218 INFO L225 Difference]: With dead ends: 18455 [2023-12-25 05:38:43,219 INFO L226 Difference]: Without dead ends: 12272 [2023-12-25 05:38:43,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:43,242 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 120 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:43,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1265 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:43,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12272 states. [2023-12-25 05:38:43,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12272 to 12267. [2023-12-25 05:38:43,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12267 states, 10145 states have (on average 1.6620995564317398) internal successors, (16862), 10152 states have internal predecessors, (16862), 2087 states have call successors, (2087), 31 states have call predecessors, (2087), 34 states have return successors, (2278), 2085 states have call predecessors, (2278), 2086 states have call successors, (2278) [2023-12-25 05:38:43,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12267 states to 12267 states and 21227 transitions. [2023-12-25 05:38:43,778 INFO L78 Accepts]: Start accepts. Automaton has 12267 states and 21227 transitions. Word has length 174 [2023-12-25 05:38:43,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:43,778 INFO L495 AbstractCegarLoop]: Abstraction has 12267 states and 21227 transitions. [2023-12-25 05:38:43,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-25 05:38:43,779 INFO L276 IsEmpty]: Start isEmpty. Operand 12267 states and 21227 transitions. [2023-12-25 05:38:43,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-25 05:38:43,832 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:43,832 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:43,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:44,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:44,040 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:44,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:44,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1110323111, now seen corresponding path program 1 times [2023-12-25 05:38:44,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:44,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1951196132] [2023-12-25 05:38:44,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:44,041 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:44,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:44,042 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:38:44,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-25 05:38:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:44,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:44,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:44,332 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-25 05:38:44,332 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:44,332 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:44,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1951196132] [2023-12-25 05:38:44,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1951196132] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:44,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:44,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:44,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956962305] [2023-12-25 05:38:44,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:44,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:44,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:44,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:44,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:44,335 INFO L87 Difference]: Start difference. First operand 12267 states and 21227 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-25 05:38:45,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:45,023 INFO L93 Difference]: Finished difference Result 29316 states and 50686 transitions. [2023-12-25 05:38:45,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:45,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 193 [2023-12-25 05:38:45,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:45,089 INFO L225 Difference]: With dead ends: 29316 [2023-12-25 05:38:45,090 INFO L226 Difference]: Without dead ends: 19160 [2023-12-25 05:38:45,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:45,120 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 118 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:45,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 1237 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:45,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19160 states. [2023-12-25 05:38:45,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19160 to 19155. [2023-12-25 05:38:45,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19155 states, 15830 states have (on average 1.6385975994946305) internal successors, (25939), 15837 states have internal predecessors, (25939), 3290 states have call successors, (3290), 31 states have call predecessors, (3290), 34 states have return successors, (3625), 3288 states have call predecessors, (3625), 3289 states have call successors, (3625) [2023-12-25 05:38:45,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19155 states to 19155 states and 32854 transitions. [2023-12-25 05:38:45,950 INFO L78 Accepts]: Start accepts. Automaton has 19155 states and 32854 transitions. Word has length 193 [2023-12-25 05:38:45,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:45,950 INFO L495 AbstractCegarLoop]: Abstraction has 19155 states and 32854 transitions. [2023-12-25 05:38:45,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-25 05:38:45,950 INFO L276 IsEmpty]: Start isEmpty. Operand 19155 states and 32854 transitions. [2023-12-25 05:38:46,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-12-25 05:38:46,008 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:46,008 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:46,015 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-12-25 05:38:46,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:46,217 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:46,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:46,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1660518597, now seen corresponding path program 1 times [2023-12-25 05:38:46,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:46,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1002995531] [2023-12-25 05:38:46,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:46,218 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:46,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:46,219 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:38:46,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-25 05:38:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:46,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:46,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:46,490 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 05:38:46,490 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:46,490 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:46,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1002995531] [2023-12-25 05:38:46,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1002995531] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:46,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:46,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:46,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723271822] [2023-12-25 05:38:46,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:46,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:46,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:46,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:46,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:46,492 INFO L87 Difference]: Start difference. First operand 19155 states and 32854 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-25 05:38:47,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:47,733 INFO L93 Difference]: Finished difference Result 50555 states and 87073 transitions. [2023-12-25 05:38:47,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:47,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 176 [2023-12-25 05:38:47,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:47,855 INFO L225 Difference]: With dead ends: 50555 [2023-12-25 05:38:47,856 INFO L226 Difference]: Without dead ends: 34152 [2023-12-25 05:38:47,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:47,898 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 116 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:47,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1263 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:47,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34152 states. [2023-12-25 05:38:49,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34152 to 34147. [2023-12-25 05:38:49,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34147 states, 28372 states have (on average 1.6358733963062173) internal successors, (46413), 28379 states have internal predecessors, (46413), 5740 states have call successors, (5740), 31 states have call predecessors, (5740), 34 states have return successors, (6349), 5738 states have call predecessors, (6349), 5739 states have call successors, (6349) [2023-12-25 05:38:49,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34147 states to 34147 states and 58502 transitions. [2023-12-25 05:38:49,425 INFO L78 Accepts]: Start accepts. Automaton has 34147 states and 58502 transitions. Word has length 176 [2023-12-25 05:38:49,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:49,426 INFO L495 AbstractCegarLoop]: Abstraction has 34147 states and 58502 transitions. [2023-12-25 05:38:49,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-25 05:38:49,426 INFO L276 IsEmpty]: Start isEmpty. Operand 34147 states and 58502 transitions. [2023-12-25 05:38:49,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-12-25 05:38:49,508 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:49,508 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:49,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-12-25 05:38:49,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:49,716 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:49,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:49,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1341289823, now seen corresponding path program 1 times [2023-12-25 05:38:49,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:49,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881584045] [2023-12-25 05:38:49,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:49,717 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:49,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:49,718 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:38:49,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-25 05:38:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:49,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:49,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:50,019 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-25 05:38:50,019 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:50,019 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:50,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881584045] [2023-12-25 05:38:50,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881584045] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:50,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:50,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:50,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470964037] [2023-12-25 05:38:50,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:50,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:50,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:50,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:50,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:50,021 INFO L87 Difference]: Start difference. First operand 34147 states and 58502 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-25 05:38:52,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:52,160 INFO L93 Difference]: Finished difference Result 93042 states and 159950 transitions. [2023-12-25 05:38:52,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:52,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 195 [2023-12-25 05:38:52,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:52,431 INFO L225 Difference]: With dead ends: 93042 [2023-12-25 05:38:52,431 INFO L226 Difference]: Without dead ends: 62562 [2023-12-25 05:38:52,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:52,532 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 114 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1267 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:52,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 1267 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:52,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62562 states. [2023-12-25 05:38:55,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62562 to 62557. [2023-12-25 05:38:55,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62557 states, 52269 states have (on average 1.6320763741414606) internal successors, (85307), 52276 states have internal predecessors, (85307), 10253 states have call successors, (10253), 31 states have call predecessors, (10253), 34 states have return successors, (11394), 10251 states have call predecessors, (11394), 10252 states have call successors, (11394) [2023-12-25 05:38:55,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62557 states to 62557 states and 106954 transitions. [2023-12-25 05:38:55,491 INFO L78 Accepts]: Start accepts. Automaton has 62557 states and 106954 transitions. Word has length 195 [2023-12-25 05:38:55,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:55,491 INFO L495 AbstractCegarLoop]: Abstraction has 62557 states and 106954 transitions. [2023-12-25 05:38:55,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-25 05:38:55,491 INFO L276 IsEmpty]: Start isEmpty. Operand 62557 states and 106954 transitions. [2023-12-25 05:38:55,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-12-25 05:38:55,946 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:55,946 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:55,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2023-12-25 05:38:56,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:56,154 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:56,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:56,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1839123318, now seen corresponding path program 1 times [2023-12-25 05:38:56,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:56,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1312609442] [2023-12-25 05:38:56,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:56,155 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:56,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:56,156 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:38:56,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-25 05:38:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:56,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:56,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:56,433 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-25 05:38:56,433 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:56,433 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:56,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1312609442] [2023-12-25 05:38:56,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1312609442] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:56,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:56,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:56,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753368981] [2023-12-25 05:38:56,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:56,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:56,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:56,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:56,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:56,435 INFO L87 Difference]: Start difference. First operand 62557 states and 106954 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-25 05:38:59,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:59,652 INFO L93 Difference]: Finished difference Result 117165 states and 200762 transitions. [2023-12-25 05:38:59,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:59,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 196 [2023-12-25 05:38:59,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:39:00,192 INFO L225 Difference]: With dead ends: 117165 [2023-12-25 05:39:00,193 INFO L226 Difference]: Without dead ends: 116925 [2023-12-25 05:39:00,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:39:00,237 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 112 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:39:00,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 1263 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:39:00,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116925 states. [2023-12-25 05:39:04,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116925 to 116920. [2023-12-25 05:39:04,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116920 states, 98264 states have (on average 1.6271269233900514) internal successors, (159888), 98271 states have internal predecessors, (159888), 18621 states have call successors, (18621), 31 states have call predecessors, (18621), 34 states have return successors, (20808), 18619 states have call predecessors, (20808), 18620 states have call successors, (20808) [2023-12-25 05:39:05,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116920 states to 116920 states and 199317 transitions. [2023-12-25 05:39:05,661 INFO L78 Accepts]: Start accepts. Automaton has 116920 states and 199317 transitions. Word has length 196 [2023-12-25 05:39:05,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:39:05,661 INFO L495 AbstractCegarLoop]: Abstraction has 116920 states and 199317 transitions. [2023-12-25 05:39:05,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-25 05:39:05,662 INFO L276 IsEmpty]: Start isEmpty. Operand 116920 states and 199317 transitions. [2023-12-25 05:39:05,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-25 05:39:05,844 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:39:05,844 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:39:05,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-25 05:39:06,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:39:06,045 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:39:06,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:39:06,045 INFO L85 PathProgramCache]: Analyzing trace with hash -47604017, now seen corresponding path program 1 times [2023-12-25 05:39:06,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:39:06,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2009539689] [2023-12-25 05:39:06,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:39:06,046 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:39:06,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:39:06,047 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:39:06,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-25 05:39:06,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:39:06,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 05:39:06,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:39:06,468 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-25 05:39:06,468 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:39:06,712 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-25 05:39:06,712 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:39:06,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2009539689] [2023-12-25 05:39:06,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2009539689] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:39:06,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:39:06,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-25 05:39:06,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214246206] [2023-12-25 05:39:06,712 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:39:06,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 05:39:06,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:39:06,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 05:39:06,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:39:06,714 INFO L87 Difference]: Start difference. First operand 116920 states and 199317 transitions. Second operand has 16 states, 16 states have (on average 12.25) internal successors, (196), 14 states have internal predecessors, (196), 4 states have call successors, (41), 6 states have call predecessors, (41), 9 states have return successors, (37), 6 states have call predecessors, (37), 4 states have call successors, (37) [2023-12-25 05:39:20,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:39:20,029 INFO L93 Difference]: Finished difference Result 344300 states and 593671 transitions. [2023-12-25 05:39:20,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:39:20,030 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 12.25) internal successors, (196), 14 states have internal predecessors, (196), 4 states have call successors, (41), 6 states have call predecessors, (41), 9 states have return successors, (37), 6 states have call predecessors, (37), 4 states have call successors, (37) Word has length 179 [2023-12-25 05:39:20,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:39:21,767 INFO L225 Difference]: With dead ends: 344300 [2023-12-25 05:39:21,767 INFO L226 Difference]: Without dead ends: 344067 [2023-12-25 05:39:22,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2023-12-25 05:39:22,128 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 2733 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 4899 mSolverCounterSat, 689 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2816 SdHoareTripleChecker+Valid, 2668 SdHoareTripleChecker+Invalid, 5588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 689 IncrementalHoareTripleChecker+Valid, 4899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:39:22,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2816 Valid, 2668 Invalid, 5588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [689 Valid, 4899 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-25 05:39:22,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344067 states. [2023-12-25 05:39:34,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344067 to 233833. [2023-12-25 05:39:35,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233833 states, 196523 states have (on average 1.6271276135617714) internal successors, (319768), 196536 states have internal predecessors, (319768), 37240 states have call successors, (37240), 61 states have call predecessors, (37240), 69 states have return successors, (45984), 37239 states have call predecessors, (45984), 37238 states have call successors, (45984) [2023-12-25 05:39:36,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233833 states to 233833 states and 402992 transitions. [2023-12-25 05:39:36,509 INFO L78 Accepts]: Start accepts. Automaton has 233833 states and 402992 transitions. Word has length 179 [2023-12-25 05:39:36,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:39:36,510 INFO L495 AbstractCegarLoop]: Abstraction has 233833 states and 402992 transitions. [2023-12-25 05:39:36,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.25) internal successors, (196), 14 states have internal predecessors, (196), 4 states have call successors, (41), 6 states have call predecessors, (41), 9 states have return successors, (37), 6 states have call predecessors, (37), 4 states have call successors, (37) [2023-12-25 05:39:36,510 INFO L276 IsEmpty]: Start isEmpty. Operand 233833 states and 402992 transitions. [2023-12-25 05:39:36,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-25 05:39:36,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:39:36,950 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:39:36,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-25 05:39:37,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:39:37,150 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:39:37,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:39:37,151 INFO L85 PathProgramCache]: Analyzing trace with hash -925476364, now seen corresponding path program 1 times [2023-12-25 05:39:37,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:39:37,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195348246] [2023-12-25 05:39:37,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:39:37,152 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:39:37,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:39:37,153 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:39:37,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-25 05:39:37,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:39:37,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:39:37,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:39:37,526 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-25 05:39:37,527 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:39:37,527 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:39:37,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195348246] [2023-12-25 05:39:37,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [195348246] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:39:37,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:39:37,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:39:37,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151021102] [2023-12-25 05:39:37,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:39:37,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:39:37,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:39:37,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:39:37,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:39:37,528 INFO L87 Difference]: Start difference. First operand 233833 states and 402992 transitions. Second operand has 9 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 4 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-25 05:39:46,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:39:46,056 INFO L93 Difference]: Finished difference Result 234357 states and 403760 transitions. [2023-12-25 05:39:46,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:39:46,056 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 4 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 180 [2023-12-25 05:39:46,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:39:47,143 INFO L225 Difference]: With dead ends: 234357 [2023-12-25 05:39:47,143 INFO L226 Difference]: Without dead ends: 233885 [2023-12-25 05:39:47,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2023-12-25 05:39:47,247 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 668 mSDsluCounter, 3565 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 4168 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:39:47,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 4168 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 05:39:47,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233885 states. [2023-12-25 05:39:58,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233885 to 233885. [2023-12-25 05:39:58,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233885 states, 196554 states have (on average 1.6270846688441853) internal successors, (319810), 196570 states have internal predecessors, (319810), 37260 states have call successors, (37260), 63 states have call predecessors, (37260), 70 states have return successors, (46002), 37255 states have call predecessors, (46002), 37254 states have call successors, (46002) [2023-12-25 05:40:00,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233885 states to 233885 states and 403072 transitions. [2023-12-25 05:40:00,213 INFO L78 Accepts]: Start accepts. Automaton has 233885 states and 403072 transitions. Word has length 180 [2023-12-25 05:40:00,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:40:00,214 INFO L495 AbstractCegarLoop]: Abstraction has 233885 states and 403072 transitions. [2023-12-25 05:40:00,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 4 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-25 05:40:00,214 INFO L276 IsEmpty]: Start isEmpty. Operand 233885 states and 403072 transitions. [2023-12-25 05:40:00,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-12-25 05:40:00,982 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:40:00,982 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:40:00,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-25 05:40:01,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:40:01,185 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:40:01,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:40:01,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1291259901, now seen corresponding path program 1 times [2023-12-25 05:40:01,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:40:01,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1520083096] [2023-12-25 05:40:01,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:40:01,187 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:40:01,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:40:01,188 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:40:01,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-25 05:40:01,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:40:01,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:40:01,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:40:01,493 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 05:40:01,494 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:40:01,494 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:40:01,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1520083096] [2023-12-25 05:40:01,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1520083096] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:40:01,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:40:01,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:40:01,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679861670] [2023-12-25 05:40:01,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:40:01,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:40:01,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:40:01,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:40:01,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:40:01,497 INFO L87 Difference]: Start difference. First operand 233885 states and 403072 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-25 05:40:10,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:40:10,795 INFO L93 Difference]: Finished difference Result 347716 states and 599334 transitions. [2023-12-25 05:40:10,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:40:10,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 198 [2023-12-25 05:40:10,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted.