/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_spec11_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:41:08,247 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:41:08,328 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 05:41:08,333 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:41:08,333 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:41:08,358 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:41:08,358 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:41:08,358 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:41:08,359 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:41:08,362 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:41:08,362 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:41:08,362 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:41:08,363 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:41:08,364 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:41:08,364 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:41:08,365 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:41:08,365 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:41:08,365 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:41:08,365 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:41:08,366 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:41:08,366 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:41:08,366 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:41:08,367 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:41:08,367 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:41:08,367 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:41:08,367 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:41:08,367 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:41:08,367 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:41:08,368 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:41:08,368 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:41:08,368 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:41:08,369 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:41:08,369 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:41:08,369 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:41:08,369 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:41:08,369 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:41:08,369 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:41:08,369 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:41:08,369 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:41:08,370 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:41:08,370 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:41:08,370 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:41:08,370 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:41:08,370 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:41:08,370 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:41:08,371 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:41:08,371 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:41:08,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:41:08,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:41:08,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:41:08,593 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:41:08,593 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:41:08,594 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_productSimulator.cil.c [2023-12-25 05:41:09,719 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:41:10,024 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:41:10,024 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_productSimulator.cil.c [2023-12-25 05:41:10,053 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9979fc7b2/2600288f91d04cffaec00c0e2856fb9e/FLAGbdd2604ff [2023-12-25 05:41:10,064 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9979fc7b2/2600288f91d04cffaec00c0e2856fb9e [2023-12-25 05:41:10,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:41:10,066 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:41:10,068 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:41:10,068 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:41:10,075 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:41:10,076 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:41:10" (1/1) ... [2023-12-25 05:41:10,077 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53dcbf05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:41:10, skipping insertion in model container [2023-12-25 05:41:10,077 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:41:10" (1/1) ... [2023-12-25 05:41:10,144 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:41:10,549 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_spec11_productSimulator.cil.c[48047,48060] [2023-12-25 05:41:10,590 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:41:10,612 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:41:10,628 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:41:10,678 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_spec11_productSimulator.cil.c[48047,48060] [2023-12-25 05:41:10,698 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:41:10,703 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:41:10,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2023-12-25 05:41:10,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [168] [2023-12-25 05:41:10,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [754] [2023-12-25 05:41:10,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1126] [2023-12-25 05:41:10,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1492] [2023-12-25 05:41:10,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1698] [2023-12-25 05:41:10,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2095] [2023-12-25 05:41:10,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2112] [2023-12-25 05:41:10,728 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2378] [2023-12-25 05:41:10,728 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [2387] [2023-12-25 05:41:10,728 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [3447] [2023-12-25 05:41:10,853 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_spec11_productSimulator.cil.c[48047,48060] [2023-12-25 05:41:10,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:41:10,936 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:41:10,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:41:10 WrapperNode [2023-12-25 05:41:10,937 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:41:10,938 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:41:10,938 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:41:10,938 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:41:10,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:41:10" (1/1) ... [2023-12-25 05:41:11,000 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:41:10" (1/1) ... [2023-12-25 05:41:11,113 INFO L138 Inliner]: procedures = 153, calls = 262, calls flagged for inlining = 67, calls inlined = 64, statements flattened = 1222 [2023-12-25 05:41:11,113 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:41:11,114 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:41:11,114 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:41:11,114 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:41:11,122 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:41:10" (1/1) ... [2023-12-25 05:41:11,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:41:10" (1/1) ... [2023-12-25 05:41:11,127 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:41:10" (1/1) ... [2023-12-25 05:41:11,148 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 05:41:11,148 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:41:10" (1/1) ... [2023-12-25 05:41:11,148 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:41:10" (1/1) ... [2023-12-25 05:41:11,164 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:41:10" (1/1) ... [2023-12-25 05:41:11,172 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:41:10" (1/1) ... [2023-12-25 05:41:11,177 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:41:10" (1/1) ... [2023-12-25 05:41:11,181 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:41:10" (1/1) ... [2023-12-25 05:41:11,189 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:41:11,190 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:41:11,190 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:41:11,190 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:41:11,191 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:41:10" (1/1) ... [2023-12-25 05:41:11,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:41:11,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:41:11,213 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 05:41:11,256 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 05:41:11,281 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-25 05:41:11,282 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-25 05:41:11,282 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2023-12-25 05:41:11,282 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2023-12-25 05:41:11,282 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2023-12-25 05:41:11,282 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2023-12-25 05:41:11,282 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-25 05:41:11,282 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-25 05:41:11,282 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-25 05:41:11,282 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-25 05:41:11,282 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-25 05:41:11,282 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-25 05:41:11,282 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-25 05:41:11,283 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-25 05:41:11,283 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2023-12-25 05:41:11,283 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2023-12-25 05:41:11,283 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-25 05:41:11,283 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-25 05:41:11,283 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2023-12-25 05:41:11,283 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2023-12-25 05:41:11,283 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-25 05:41:11,283 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-25 05:41:11,283 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-25 05:41:11,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-25 05:41:11,283 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-25 05:41:11,283 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-25 05:41:11,283 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2023-12-25 05:41:11,284 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2023-12-25 05:41:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2023-12-25 05:41:11,284 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2023-12-25 05:41:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-25 05:41:11,284 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-25 05:41:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-25 05:41:11,284 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-25 05:41:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-25 05:41:11,284 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-25 05:41:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2023-12-25 05:41:11,284 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2023-12-25 05:41:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-25 05:41:11,284 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-25 05:41:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-25 05:41:11,285 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-25 05:41:11,285 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-25 05:41:11,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-25 05:41:11,285 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2023-12-25 05:41:11,285 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2023-12-25 05:41:11,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:41:11,285 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-25 05:41:11,285 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-25 05:41:11,285 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-25 05:41:11,285 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-25 05:41:11,285 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2023-12-25 05:41:11,285 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2023-12-25 05:41:11,285 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2023-12-25 05:41:11,285 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2023-12-25 05:41:11,285 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2023-12-25 05:41:11,286 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2023-12-25 05:41:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-25 05:41:11,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-25 05:41:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-25 05:41:11,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-25 05:41:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-25 05:41:11,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-25 05:41:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-25 05:41:11,286 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-25 05:41:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:41:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:41:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:41:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:41:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-25 05:41:11,287 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-25 05:41:11,287 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-25 05:41:11,287 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-25 05:41:11,287 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-25 05:41:11,287 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-25 05:41:11,287 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2023-12-25 05:41:11,287 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2023-12-25 05:41:11,287 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2023-12-25 05:41:11,287 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2023-12-25 05:41:11,287 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-25 05:41:11,287 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-25 05:41:11,287 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-25 05:41:11,287 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-25 05:41:11,287 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-25 05:41:11,287 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-25 05:41:11,288 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2023-12-25 05:41:11,288 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2023-12-25 05:41:11,288 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-12-25 05:41:11,288 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-12-25 05:41:11,288 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-25 05:41:11,288 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-25 05:41:11,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:41:11,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:41:11,504 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:41:11,506 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:41:12,552 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:41:12,595 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:41:12,595 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:41:12,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:41:12 BoogieIcfgContainer [2023-12-25 05:41:12,596 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:41:12,597 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:41:12,597 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:41:12,599 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:41:12,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:41:10" (1/3) ... [2023-12-25 05:41:12,600 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5680e245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:41:12, skipping insertion in model container [2023-12-25 05:41:12,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:41:10" (2/3) ... [2023-12-25 05:41:12,600 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5680e245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:41:12, skipping insertion in model container [2023-12-25 05:41:12,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:41:12" (3/3) ... [2023-12-25 05:41:12,601 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_productSimulator.cil.c [2023-12-25 05:41:12,613 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:41:12,613 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:41:12,653 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:41:12,658 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;@55350780, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:41:12,658 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:41:12,664 INFO L276 IsEmpty]: Start isEmpty. Operand has 571 states, 417 states have (on average 1.5515587529976018) internal successors, (647), 437 states have internal predecessors, (647), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) [2023-12-25 05:41:12,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-25 05:41:12,682 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:41:12,683 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:41:12,683 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:41:12,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:41:12,687 INFO L85 PathProgramCache]: Analyzing trace with hash -483827818, now seen corresponding path program 1 times [2023-12-25 05:41:12,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:41:12,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2076129326] [2023-12-25 05:41:12,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:41:12,698 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 05:41:12,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:41:12,700 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 05:41:12,706 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 05:41:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:41:13,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:41:13,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:41:13,055 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-25 05:41:13,055 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:41:13,056 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:41:13,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2076129326] [2023-12-25 05:41:13,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2076129326] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:41:13,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:41:13,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:41:13,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700143650] [2023-12-25 05:41:13,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:41:13,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:41:13,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:41:13,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:41:13,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:41:13,105 INFO L87 Difference]: Start difference. First operand has 571 states, 417 states have (on average 1.5515587529976018) internal successors, (647), 437 states have internal predecessors, (647), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) Second operand has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:13,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:41:13,214 INFO L93 Difference]: Finished difference Result 884 states and 1326 transitions. [2023-12-25 05:41:13,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:41:13,217 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 139 [2023-12-25 05:41:13,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:41:13,232 INFO L225 Difference]: With dead ends: 884 [2023-12-25 05:41:13,232 INFO L226 Difference]: Without dead ends: 568 [2023-12-25 05:41:13,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 138 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 05:41:13,239 INFO L413 NwaCegarLoop]: 839 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:41:13,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 839 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:41:13,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-12-25 05:41:13,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2023-12-25 05:41:13,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 415 states have (on average 1.5421686746987953) internal successors, (640), 434 states have internal predecessors, (640), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2023-12-25 05:41:13,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 857 transitions. [2023-12-25 05:41:13,331 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 857 transitions. Word has length 139 [2023-12-25 05:41:13,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:41:13,333 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 857 transitions. [2023-12-25 05:41:13,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:13,333 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 857 transitions. [2023-12-25 05:41:13,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-25 05:41:13,338 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:41:13,338 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:41:13,348 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 (2)] Forceful destruction successful, exit code 0 [2023-12-25 05:41:13,545 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 05:41:13,546 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:41:13,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:41:13,547 INFO L85 PathProgramCache]: Analyzing trace with hash -387028067, now seen corresponding path program 1 times [2023-12-25 05:41:13,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:41:13,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508112375] [2023-12-25 05:41:13,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:41:13,549 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 05:41:13,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:41:13,552 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 05:41:13,553 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 05:41:13,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:41:13,876 INFO L262 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:41:13,884 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:41:13,943 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-25 05:41:13,944 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:41:13,944 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:41:13,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1508112375] [2023-12-25 05:41:13,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1508112375] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:41:13,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:41:13,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:41:13,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993386228] [2023-12-25 05:41:13,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:41:13,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:41:13,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:41:13,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:41:13,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:41:13,947 INFO L87 Difference]: Start difference. First operand 568 states and 857 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:14,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:41:14,064 INFO L93 Difference]: Finished difference Result 1104 states and 1662 transitions. [2023-12-25 05:41:14,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:41:14,065 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 140 [2023-12-25 05:41:14,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:41:14,070 INFO L225 Difference]: With dead ends: 1104 [2023-12-25 05:41:14,070 INFO L226 Difference]: Without dead ends: 568 [2023-12-25 05:41:14,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:41:14,074 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 0 mSDsluCounter, 1663 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2499 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:41:14,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2499 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:41:14,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-12-25 05:41:14,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2023-12-25 05:41:14,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 415 states have (on average 1.5253012048192771) internal successors, (633), 434 states have internal predecessors, (633), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2023-12-25 05:41:14,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 850 transitions. [2023-12-25 05:41:14,162 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 850 transitions. Word has length 140 [2023-12-25 05:41:14,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:41:14,163 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 850 transitions. [2023-12-25 05:41:14,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:14,163 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 850 transitions. [2023-12-25 05:41:14,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-25 05:41:14,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:41:14,166 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:41:14,188 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 05:41:14,366 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 05:41:14,367 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:41:14,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:41:14,368 INFO L85 PathProgramCache]: Analyzing trace with hash 370948889, now seen corresponding path program 1 times [2023-12-25 05:41:14,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:41:14,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315623992] [2023-12-25 05:41:14,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:41:14,369 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 05:41:14,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:41:14,370 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 05:41:14,372 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 05:41:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:41:14,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:41:14,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:41:14,774 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-12-25 05:41:14,775 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:41:14,775 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:41:14,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [315623992] [2023-12-25 05:41:14,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [315623992] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:41:14,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:41:14,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:41:14,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995832612] [2023-12-25 05:41:14,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:41:14,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:41:14,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:41:14,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:41:14,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:41:14,778 INFO L87 Difference]: Start difference. First operand 568 states and 850 transitions. Second operand has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-12-25 05:41:14,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:41:14,962 INFO L93 Difference]: Finished difference Result 1087 states and 1633 transitions. [2023-12-25 05:41:14,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:41:14,963 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 145 [2023-12-25 05:41:14,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:41:14,966 INFO L225 Difference]: With dead ends: 1087 [2023-12-25 05:41:14,966 INFO L226 Difference]: Without dead ends: 572 [2023-12-25 05:41:14,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:41:14,969 INFO L413 NwaCegarLoop]: 817 mSDtfsCounter, 12 mSDsluCounter, 4064 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 4881 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:41:14,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 4881 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:41:14,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2023-12-25 05:41:14,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2023-12-25 05:41:14,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 417 states have (on average 1.5227817745803358) internal successors, (635), 437 states have internal predecessors, (635), 109 states have call successors, (109), 43 states have call predecessors, (109), 45 states have return successors, (112), 108 states have call predecessors, (112), 108 states have call successors, (112) [2023-12-25 05:41:14,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 856 transitions. [2023-12-25 05:41:14,988 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 856 transitions. Word has length 145 [2023-12-25 05:41:14,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:41:14,988 INFO L495 AbstractCegarLoop]: Abstraction has 572 states and 856 transitions. [2023-12-25 05:41:14,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-12-25 05:41:14,989 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 856 transitions. [2023-12-25 05:41:14,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-25 05:41:14,991 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:41:14,992 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:41:15,012 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 05:41:15,199 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 05:41:15,200 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:41:15,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:41:15,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1457399047, now seen corresponding path program 1 times [2023-12-25 05:41:15,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:41:15,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [735445815] [2023-12-25 05:41:15,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:41:15,202 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 05:41:15,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:41:15,203 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 05:41:15,234 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 05:41:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:41:15,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:41:15,525 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:41:15,577 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-25 05:41:15,577 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:41:15,577 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:41:15,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [735445815] [2023-12-25 05:41:15,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [735445815] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:41:15,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:41:15,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:41:15,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197062329] [2023-12-25 05:41:15,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:41:15,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:41:15,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:41:15,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:41:15,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:41:15,582 INFO L87 Difference]: Start difference. First operand 572 states and 856 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-12-25 05:41:15,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:41:15,767 INFO L93 Difference]: Finished difference Result 1073 states and 1613 transitions. [2023-12-25 05:41:15,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:41:15,768 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 146 [2023-12-25 05:41:15,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:41:15,771 INFO L225 Difference]: With dead ends: 1073 [2023-12-25 05:41:15,771 INFO L226 Difference]: Without dead ends: 574 [2023-12-25 05:41:15,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:41:15,778 INFO L413 NwaCegarLoop]: 817 mSDtfsCounter, 12 mSDsluCounter, 4065 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 4882 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:41:15,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 4882 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:41:15,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2023-12-25 05:41:15,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2023-12-25 05:41:15,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 418 states have (on average 1.5215311004784688) internal successors, (636), 438 states have internal predecessors, (636), 109 states have call successors, (109), 43 states have call predecessors, (109), 46 states have return successors, (113), 109 states have call predecessors, (113), 108 states have call successors, (113) [2023-12-25 05:41:15,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 858 transitions. [2023-12-25 05:41:15,817 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 858 transitions. Word has length 146 [2023-12-25 05:41:15,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:41:15,817 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 858 transitions. [2023-12-25 05:41:15,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-12-25 05:41:15,817 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 858 transitions. [2023-12-25 05:41:15,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-25 05:41:15,820 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:41:15,820 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:41:15,834 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 05:41:16,028 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 05:41:16,029 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:41:16,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:41:16,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1724441773, now seen corresponding path program 2 times [2023-12-25 05:41:16,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:41:16,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127193278] [2023-12-25 05:41:16,031 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 05:41:16,031 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 05:41:16,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:41:16,032 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 05:41:16,034 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 05:41:16,256 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 05:41:16,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 05:41:16,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 05:41:16,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:41:16,457 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-25 05:41:16,458 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:41:16,458 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:41:16,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127193278] [2023-12-25 05:41:16,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [127193278] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:41:16,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:41:16,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:41:16,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358733781] [2023-12-25 05:41:16,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:41:16,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:41:16,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:41:16,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:41:16,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:41:16,461 INFO L87 Difference]: Start difference. First operand 574 states and 858 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:16,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:41:16,601 INFO L93 Difference]: Finished difference Result 1382 states and 2064 transitions. [2023-12-25 05:41:16,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:41:16,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 147 [2023-12-25 05:41:16,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:41:16,609 INFO L225 Difference]: With dead ends: 1382 [2023-12-25 05:41:16,609 INFO L226 Difference]: Without dead ends: 1079 [2023-12-25 05:41:16,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:41:16,611 INFO L413 NwaCegarLoop]: 831 mSDtfsCounter, 742 mSDsluCounter, 2390 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 3221 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:41:16,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 3221 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:41:16,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2023-12-25 05:41:16,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1072. [2023-12-25 05:41:16,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 789 states have (on average 1.5373891001267428) internal successors, (1213), 825 states have internal predecessors, (1213), 198 states have call successors, (198), 81 states have call predecessors, (198), 84 states have return successors, (201), 196 states have call predecessors, (201), 196 states have call successors, (201) [2023-12-25 05:41:16,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1612 transitions. [2023-12-25 05:41:16,698 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1612 transitions. Word has length 147 [2023-12-25 05:41:16,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:41:16,699 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 1612 transitions. [2023-12-25 05:41:16,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:16,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1612 transitions. [2023-12-25 05:41:16,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-25 05:41:16,703 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:41:16,703 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:41:16,718 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 05:41:16,908 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 05:41:16,909 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:41:16,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:41:16,909 INFO L85 PathProgramCache]: Analyzing trace with hash 746879429, now seen corresponding path program 1 times [2023-12-25 05:41:16,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:41:16,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [665443989] [2023-12-25 05:41:16,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:41:16,910 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 05:41:16,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:41:16,912 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 05:41:16,913 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 05:41:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:41:17,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:41:17,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:41:17,216 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-25 05:41:17,216 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:41:17,216 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:41:17,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [665443989] [2023-12-25 05:41:17,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [665443989] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:41:17,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:41:17,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:41:17,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517807865] [2023-12-25 05:41:17,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:41:17,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:41:17,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:41:17,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:41:17,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:41:17,218 INFO L87 Difference]: Start difference. First operand 1072 states and 1612 transitions. Second operand has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-12-25 05:41:17,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:41:17,411 INFO L93 Difference]: Finished difference Result 2073 states and 3127 transitions. [2023-12-25 05:41:17,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:41:17,412 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 148 [2023-12-25 05:41:17,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:41:17,416 INFO L225 Difference]: With dead ends: 2073 [2023-12-25 05:41:17,417 INFO L226 Difference]: Without dead ends: 1076 [2023-12-25 05:41:17,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:41:17,420 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 9 mSDsluCounter, 4071 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 4890 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:41:17,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 4890 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:41:17,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2023-12-25 05:41:17,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 1074. [2023-12-25 05:41:17,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 790 states have (on average 1.5367088607594936) internal successors, (1214), 827 states have internal predecessors, (1214), 198 states have call successors, (198), 81 states have call predecessors, (198), 85 states have return successors, (204), 196 states have call predecessors, (204), 196 states have call successors, (204) [2023-12-25 05:41:17,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1616 transitions. [2023-12-25 05:41:17,453 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1616 transitions. Word has length 148 [2023-12-25 05:41:17,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:41:17,453 INFO L495 AbstractCegarLoop]: Abstraction has 1074 states and 1616 transitions. [2023-12-25 05:41:17,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-12-25 05:41:17,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1616 transitions. [2023-12-25 05:41:17,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-25 05:41:17,456 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:41:17,457 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:41:17,467 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 05:41:17,665 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 05:41:17,665 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:41:17,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:41:17,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1884521508, now seen corresponding path program 1 times [2023-12-25 05:41:17,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:41:17,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041793126] [2023-12-25 05:41:17,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:41:17,667 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 05:41:17,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:41:17,668 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 05:41:17,690 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 05:41:17,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:41:17,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:41:17,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:41:17,961 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-25 05:41:17,961 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:41:17,961 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:41:17,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2041793126] [2023-12-25 05:41:17,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2041793126] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:41:17,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:41:17,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:41:17,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559917299] [2023-12-25 05:41:17,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:41:17,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:41:17,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:41:17,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:41:17,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:41:17,963 INFO L87 Difference]: Start difference. First operand 1074 states and 1616 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:18,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:41:18,019 INFO L93 Difference]: Finished difference Result 1388 states and 2060 transitions. [2023-12-25 05:41:18,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:41:18,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 149 [2023-12-25 05:41:18,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:41:18,024 INFO L225 Difference]: With dead ends: 1388 [2023-12-25 05:41:18,024 INFO L226 Difference]: Without dead ends: 1076 [2023-12-25 05:41:18,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 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 05:41:18,025 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 0 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1657 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:41:18,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1657 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:41:18,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2023-12-25 05:41:18,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 1076. [2023-12-25 05:41:18,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1076 states, 792 states have (on average 1.5353535353535352) internal successors, (1216), 829 states have internal predecessors, (1216), 198 states have call successors, (198), 81 states have call predecessors, (198), 85 states have return successors, (204), 196 states have call predecessors, (204), 196 states have call successors, (204) [2023-12-25 05:41:18,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 1618 transitions. [2023-12-25 05:41:18,053 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 1618 transitions. Word has length 149 [2023-12-25 05:41:18,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:41:18,054 INFO L495 AbstractCegarLoop]: Abstraction has 1076 states and 1618 transitions. [2023-12-25 05:41:18,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:18,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 1618 transitions. [2023-12-25 05:41:18,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-25 05:41:18,057 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:41:18,057 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:41:18,069 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 05:41:18,280 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 05:41:18,281 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:41:18,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:41:18,282 INFO L85 PathProgramCache]: Analyzing trace with hash -837944441, now seen corresponding path program 1 times [2023-12-25 05:41:18,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:41:18,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1206867656] [2023-12-25 05:41:18,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:41:18,282 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 05:41:18,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:41:18,284 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 05:41:18,289 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 05:41:18,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:41:18,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:41:18,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:41:18,592 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-25 05:41:18,592 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:41:18,666 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-25 05:41:18,666 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:41:18,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1206867656] [2023-12-25 05:41:18,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1206867656] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:41:18,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:41:18,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-25 05:41:18,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091815140] [2023-12-25 05:41:18,667 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:41:18,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:41:18,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:41:18,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:41:18,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:41:18,668 INFO L87 Difference]: Start difference. First operand 1076 states and 1618 transitions. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-25 05:41:19,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:41:19,000 INFO L93 Difference]: Finished difference Result 2300 states and 3542 transitions. [2023-12-25 05:41:19,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:41:19,001 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 155 [2023-12-25 05:41:19,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:41:19,007 INFO L225 Difference]: With dead ends: 2300 [2023-12-25 05:41:19,007 INFO L226 Difference]: Without dead ends: 1680 [2023-12-25 05:41:19,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 304 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 05:41:19,011 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 975 mSDsluCounter, 2026 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 2881 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:41:19,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 2881 Invalid, 195 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:41:19,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2023-12-25 05:41:19,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1655. [2023-12-25 05:41:19,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1655 states, 1286 states have (on average 1.5979782270606533) internal successors, (2055), 1333 states have internal predecessors, (2055), 283 states have call successors, (283), 81 states have call predecessors, (283), 85 states have return successors, (289), 281 states have call predecessors, (289), 281 states have call successors, (289) [2023-12-25 05:41:19,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1655 states to 1655 states and 2627 transitions. [2023-12-25 05:41:19,066 INFO L78 Accepts]: Start accepts. Automaton has 1655 states and 2627 transitions. Word has length 155 [2023-12-25 05:41:19,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:41:19,066 INFO L495 AbstractCegarLoop]: Abstraction has 1655 states and 2627 transitions. [2023-12-25 05:41:19,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-25 05:41:19,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1655 states and 2627 transitions. [2023-12-25 05:41:19,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-25 05:41:19,074 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:41:19,074 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:41:19,082 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 (9)] Ended with exit code 0 [2023-12-25 05:41:19,281 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 05:41:19,282 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:41:19,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:41:19,283 INFO L85 PathProgramCache]: Analyzing trace with hash -2025147521, now seen corresponding path program 1 times [2023-12-25 05:41:19,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:41:19,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1946998803] [2023-12-25 05:41:19,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:41:19,284 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 05:41:19,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:41:19,285 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 05:41:19,299 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 (10)] Waiting until timeout for monitored process [2023-12-25 05:41:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:41:19,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:41:19,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:41:19,561 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-25 05:41:19,561 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:41:19,561 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:41:19,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1946998803] [2023-12-25 05:41:19,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1946998803] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:41:19,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:41:19,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:41:19,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274593344] [2023-12-25 05:41:19,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:41:19,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:41:19,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:41:19,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:41:19,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:41:19,563 INFO L87 Difference]: Start difference. First operand 1655 states and 2627 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:19,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:41:19,672 INFO L93 Difference]: Finished difference Result 3652 states and 5860 transitions. [2023-12-25 05:41:19,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:41:19,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 160 [2023-12-25 05:41:19,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:41:19,682 INFO L225 Difference]: With dead ends: 3652 [2023-12-25 05:41:19,682 INFO L226 Difference]: Without dead ends: 2106 [2023-12-25 05:41:19,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 158 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 05:41:19,687 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 167 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:41:19,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 1617 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:41:19,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2106 states. [2023-12-25 05:41:19,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2106 to 2096. [2023-12-25 05:41:19,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2096 states, 1657 states have (on average 1.6089318044659022) internal successors, (2666), 1714 states have internal predecessors, (2666), 353 states have call successors, (353), 81 states have call predecessors, (353), 85 states have return successors, (359), 351 states have call predecessors, (359), 351 states have call successors, (359) [2023-12-25 05:41:19,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2096 states to 2096 states and 3378 transitions. [2023-12-25 05:41:19,755 INFO L78 Accepts]: Start accepts. Automaton has 2096 states and 3378 transitions. Word has length 160 [2023-12-25 05:41:19,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:41:19,756 INFO L495 AbstractCegarLoop]: Abstraction has 2096 states and 3378 transitions. [2023-12-25 05:41:19,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:19,756 INFO L276 IsEmpty]: Start isEmpty. Operand 2096 states and 3378 transitions. [2023-12-25 05:41:19,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-25 05:41:19,763 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:41:19,763 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:41:19,773 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 05:41:19,974 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 05:41:19,974 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:41:19,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:41:19,975 INFO L85 PathProgramCache]: Analyzing trace with hash 662080660, now seen corresponding path program 1 times [2023-12-25 05:41:19,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:41:19,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1647490038] [2023-12-25 05:41:19,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:41:19,976 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 05:41:19,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:41:19,977 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 05:41:20,025 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 05:41:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:41:20,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:41:20,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:41:20,276 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-25 05:41:20,277 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:41:20,277 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:41:20,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1647490038] [2023-12-25 05:41:20,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1647490038] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:41:20,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:41:20,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:41:20,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851771859] [2023-12-25 05:41:20,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:41:20,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:41:20,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:41:20,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:41:20,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:41:20,278 INFO L87 Difference]: Start difference. First operand 2096 states and 3378 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:20,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:41:20,381 INFO L93 Difference]: Finished difference Result 4812 states and 7853 transitions. [2023-12-25 05:41:20,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:41:20,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 161 [2023-12-25 05:41:20,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:41:20,395 INFO L225 Difference]: With dead ends: 4812 [2023-12-25 05:41:20,395 INFO L226 Difference]: Without dead ends: 3046 [2023-12-25 05:41:20,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 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 05:41:20,401 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 165 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:41:20,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1663 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:41:20,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3046 states. [2023-12-25 05:41:20,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3046 to 3036. [2023-12-25 05:41:20,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3036 states, 2442 states have (on average 1.628173628173628) internal successors, (3976), 2519 states have internal predecessors, (3976), 508 states have call successors, (508), 81 states have call predecessors, (508), 85 states have return successors, (514), 506 states have call predecessors, (514), 506 states have call successors, (514) [2023-12-25 05:41:20,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3036 states to 3036 states and 4998 transitions. [2023-12-25 05:41:20,527 INFO L78 Accepts]: Start accepts. Automaton has 3036 states and 4998 transitions. Word has length 161 [2023-12-25 05:41:20,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:41:20,528 INFO L495 AbstractCegarLoop]: Abstraction has 3036 states and 4998 transitions. [2023-12-25 05:41:20,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:20,528 INFO L276 IsEmpty]: Start isEmpty. Operand 3036 states and 4998 transitions. [2023-12-25 05:41:20,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-25 05:41:20,540 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:41:20,540 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:41:20,556 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 05:41:20,747 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 05:41:20,748 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:41:20,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:41:20,748 INFO L85 PathProgramCache]: Analyzing trace with hash -153851191, now seen corresponding path program 1 times [2023-12-25 05:41:20,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:41:20,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722317315] [2023-12-25 05:41:20,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:41:20,749 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 05:41:20,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:41:20,750 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 05:41:20,784 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 05:41:21,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:41:21,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:41:21,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:41:21,073 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-25 05:41:21,074 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:41:21,074 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:41:21,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1722317315] [2023-12-25 05:41:21,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1722317315] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:41:21,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:41:21,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:41:21,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493719317] [2023-12-25 05:41:21,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:41:21,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:41:21,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:41:21,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:41:21,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:41:21,076 INFO L87 Difference]: Start difference. First operand 3036 states and 4998 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, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:21,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:41:21,216 INFO L93 Difference]: Finished difference Result 7198 states and 11973 transitions. [2023-12-25 05:41:21,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:41:21,216 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, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 162 [2023-12-25 05:41:21,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:41:21,235 INFO L225 Difference]: With dead ends: 7198 [2023-12-25 05:41:21,235 INFO L226 Difference]: Without dead ends: 4424 [2023-12-25 05:41:21,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 160 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 05:41:21,245 INFO L413 NwaCegarLoop]: 845 mSDtfsCounter, 163 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:41:21,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 1669 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:41:21,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4424 states. [2023-12-25 05:41:21,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4424 to 4414. [2023-12-25 05:41:21,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4414 states, 3611 states have (on average 1.6399889227360842) internal successors, (5922), 3716 states have internal predecessors, (5922), 717 states have call successors, (717), 81 states have call predecessors, (717), 85 states have return successors, (723), 715 states have call predecessors, (723), 715 states have call successors, (723) [2023-12-25 05:41:21,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4414 states to 4414 states and 7362 transitions. [2023-12-25 05:41:21,461 INFO L78 Accepts]: Start accepts. Automaton has 4414 states and 7362 transitions. Word has length 162 [2023-12-25 05:41:21,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:41:21,461 INFO L495 AbstractCegarLoop]: Abstraction has 4414 states and 7362 transitions. [2023-12-25 05:41:21,462 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, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:21,462 INFO L276 IsEmpty]: Start isEmpty. Operand 4414 states and 7362 transitions. [2023-12-25 05:41:21,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-25 05:41:21,478 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:41:21,478 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:41:21,487 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 (12)] Ended with exit code 0 [2023-12-25 05:41:21,688 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 05:41:21,688 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:41:21,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:41:21,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1683160645, now seen corresponding path program 1 times [2023-12-25 05:41:21,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:41:21,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1437008689] [2023-12-25 05:41:21,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:41:21,689 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 05:41:21,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:41:21,691 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 05:41:21,724 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 05:41:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:41:21,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:41:21,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:41:21,975 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-25 05:41:21,975 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:41:21,975 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:41:21,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1437008689] [2023-12-25 05:41:21,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1437008689] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:41:21,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:41:21,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:41:21,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507070675] [2023-12-25 05:41:21,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:41:21,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:41:21,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:41:21,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:41:21,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:41:21,983 INFO L87 Difference]: Start difference. First operand 4414 states and 7362 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, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:22,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:41:22,189 INFO L93 Difference]: Finished difference Result 10419 states and 17527 transitions. [2023-12-25 05:41:22,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:41:22,190 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, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 163 [2023-12-25 05:41:22,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:41:22,214 INFO L225 Difference]: With dead ends: 10419 [2023-12-25 05:41:22,215 INFO L226 Difference]: Without dead ends: 6550 [2023-12-25 05:41:22,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 161 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 05:41:22,228 INFO L413 NwaCegarLoop]: 833 mSDtfsCounter, 161 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:41:22,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 1652 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:41:22,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6550 states. [2023-12-25 05:41:22,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6550 to 6540. [2023-12-25 05:41:22,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6540 states, 5451 states have (on average 1.6499724821133737) internal successors, (8994), 5602 states have internal predecessors, (8994), 1003 states have call successors, (1003), 81 states have call predecessors, (1003), 85 states have return successors, (1009), 1001 states have call predecessors, (1009), 1001 states have call successors, (1009) [2023-12-25 05:41:22,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6540 states to 6540 states and 11006 transitions. [2023-12-25 05:41:22,491 INFO L78 Accepts]: Start accepts. Automaton has 6540 states and 11006 transitions. Word has length 163 [2023-12-25 05:41:22,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:41:22,491 INFO L495 AbstractCegarLoop]: Abstraction has 6540 states and 11006 transitions. [2023-12-25 05:41:22,491 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, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:22,491 INFO L276 IsEmpty]: Start isEmpty. Operand 6540 states and 11006 transitions. [2023-12-25 05:41:22,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-25 05:41:22,515 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:41:22,515 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:41:22,524 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 05:41:22,722 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 05:41:22,722 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:41:22,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:41:22,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1984654161, now seen corresponding path program 1 times [2023-12-25 05:41:22,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:41:22,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596793087] [2023-12-25 05:41:22,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:41:22,724 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 05:41:22,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:41:22,725 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 05:41:22,727 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 05:41:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:41:23,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:41:23,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:41:23,032 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-25 05:41:23,033 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:41:23,033 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:41:23,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596793087] [2023-12-25 05:41:23,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1596793087] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:41:23,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:41:23,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:41:23,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817934643] [2023-12-25 05:41:23,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:41:23,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:41:23,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:41:23,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:41:23,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:41:23,035 INFO L87 Difference]: Start difference. First operand 6540 states and 11006 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:23,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:41:23,245 INFO L93 Difference]: Finished difference Result 15630 states and 26523 transitions. [2023-12-25 05:41:23,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:41:23,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 164 [2023-12-25 05:41:23,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:41:23,288 INFO L225 Difference]: With dead ends: 15630 [2023-12-25 05:41:23,289 INFO L226 Difference]: Without dead ends: 10053 [2023-12-25 05:41:23,307 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 05:41:23,308 INFO L413 NwaCegarLoop]: 832 mSDtfsCounter, 159 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:41:23,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 1650 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:41:23,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10053 states. [2023-12-25 05:41:23,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10053 to 10043. [2023-12-25 05:41:23,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10043 states, 8513 states have (on average 1.6586397274756255) internal successors, (14120), 8744 states have internal predecessors, (14120), 1444 states have call successors, (1444), 81 states have call predecessors, (1444), 85 states have return successors, (1450), 1442 states have call predecessors, (1450), 1442 states have call successors, (1450) [2023-12-25 05:41:23,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10043 states to 10043 states and 17014 transitions. [2023-12-25 05:41:23,666 INFO L78 Accepts]: Start accepts. Automaton has 10043 states and 17014 transitions. Word has length 164 [2023-12-25 05:41:23,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:41:23,666 INFO L495 AbstractCegarLoop]: Abstraction has 10043 states and 17014 transitions. [2023-12-25 05:41:23,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:23,667 INFO L276 IsEmpty]: Start isEmpty. Operand 10043 states and 17014 transitions. [2023-12-25 05:41:23,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-25 05:41:23,707 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:41:23,707 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:41:23,715 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 (14)] Ended with exit code 0 [2023-12-25 05:41:23,915 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 05:41:23,915 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:41:23,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:41:23,916 INFO L85 PathProgramCache]: Analyzing trace with hash -2062591472, now seen corresponding path program 1 times [2023-12-25 05:41:23,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:41:23,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939193164] [2023-12-25 05:41:23,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:41:23,917 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 05:41:23,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:41:23,918 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 05:41:23,953 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 05:41:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:41:24,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:41:24,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:41:24,241 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-25 05:41:24,242 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:41:24,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:41:24,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939193164] [2023-12-25 05:41:24,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1939193164] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:41:24,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:41:24,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:41:24,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272243345] [2023-12-25 05:41:24,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:41:24,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:41:24,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:41:24,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:41:24,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:41:24,244 INFO L87 Difference]: Start difference. First operand 10043 states and 17014 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, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:24,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:41:24,634 INFO L93 Difference]: Finished difference Result 24656 states and 42055 transitions. [2023-12-25 05:41:24,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:41:24,634 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, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 165 [2023-12-25 05:41:24,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:41:24,690 INFO L225 Difference]: With dead ends: 24656 [2023-12-25 05:41:24,691 INFO L226 Difference]: Without dead ends: 16144 [2023-12-25 05:41:24,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 163 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 05:41:24,717 INFO L413 NwaCegarLoop]: 839 mSDtfsCounter, 157 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:41:24,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1656 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:41:24,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16144 states. [2023-12-25 05:41:25,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16144 to 16134. [2023-12-25 05:41:25,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16134 states, 13693 states have (on average 1.6585116482874462) internal successors, (22710), 14070 states have internal predecessors, (22710), 2355 states have call successors, (2355), 81 states have call predecessors, (2355), 85 states have return successors, (2361), 2353 states have call predecessors, (2361), 2353 states have call successors, (2361) [2023-12-25 05:41:25,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16134 states to 16134 states and 27426 transitions. [2023-12-25 05:41:25,311 INFO L78 Accepts]: Start accepts. Automaton has 16134 states and 27426 transitions. Word has length 165 [2023-12-25 05:41:25,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:41:25,312 INFO L495 AbstractCegarLoop]: Abstraction has 16134 states and 27426 transitions. [2023-12-25 05:41:25,312 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, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:25,312 INFO L276 IsEmpty]: Start isEmpty. Operand 16134 states and 27426 transitions. [2023-12-25 05:41:25,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-25 05:41:25,366 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:41:25,366 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:41:25,391 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 (15)] Ended with exit code 0 [2023-12-25 05:41:25,573 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 05:41:25,573 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:41:25,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:41:25,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1245174524, now seen corresponding path program 1 times [2023-12-25 05:41:25,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:41:25,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [424608579] [2023-12-25 05:41:25,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:41:25,575 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 05:41:25,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:41:25,576 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 05:41:25,578 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 05:41:25,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:41:25,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:41:25,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:41:25,866 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-25 05:41:25,867 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:41:25,867 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:41:25,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [424608579] [2023-12-25 05:41:25,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [424608579] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:41:25,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:41:25,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:41:25,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58325944] [2023-12-25 05:41:25,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:41:25,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:41:25,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:41:25,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:41:25,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:41:25,868 INFO L87 Difference]: Start difference. First operand 16134 states and 27426 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:26,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:41:26,567 INFO L93 Difference]: Finished difference Result 41208 states and 70573 transitions. [2023-12-25 05:41:26,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:41:26,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 166 [2023-12-25 05:41:26,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:41:26,663 INFO L225 Difference]: With dead ends: 41208 [2023-12-25 05:41:26,664 INFO L226 Difference]: Without dead ends: 27302 [2023-12-25 05:41:26,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 164 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 05:41:26,693 INFO L413 NwaCegarLoop]: 839 mSDtfsCounter, 155 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 1662 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:41:26,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 1662 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:41:26,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27302 states. [2023-12-25 05:41:27,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27302 to 27292. [2023-12-25 05:41:27,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27292 states, 23293 states have (on average 1.6627312926630318) internal successors, (38730), 23946 states have internal predecessors, (38730), 3913 states have call successors, (3913), 81 states have call predecessors, (3913), 85 states have return successors, (3919), 3911 states have call predecessors, (3919), 3911 states have call successors, (3919) [2023-12-25 05:41:27,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27292 states to 27292 states and 46562 transitions. [2023-12-25 05:41:27,859 INFO L78 Accepts]: Start accepts. Automaton has 27292 states and 46562 transitions. Word has length 166 [2023-12-25 05:41:27,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:41:27,880 INFO L495 AbstractCegarLoop]: Abstraction has 27292 states and 46562 transitions. [2023-12-25 05:41:27,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:27,881 INFO L276 IsEmpty]: Start isEmpty. Operand 27292 states and 46562 transitions. [2023-12-25 05:41:27,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-12-25 05:41:27,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:41:27,997 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:41:28,027 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 05:41:28,212 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 05:41:28,213 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:41:28,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:41:28,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1802787482, now seen corresponding path program 1 times [2023-12-25 05:41:28,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:41:28,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112377727] [2023-12-25 05:41:28,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:41:28,214 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 05:41:28,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:41:28,227 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 05:41:28,332 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 05:41:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:41:28,590 INFO L262 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:41:28,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:41:28,615 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-25 05:41:28,615 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:41:28,616 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:41:28,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112377727] [2023-12-25 05:41:28,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112377727] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:41:28,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:41:28,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:41:28,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555037837] [2023-12-25 05:41:28,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:41:28,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:41:28,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:41:28,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:41:28,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:41:28,617 INFO L87 Difference]: Start difference. First operand 27292 states and 46562 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, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:29,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:41:29,719 INFO L93 Difference]: Finished difference Result 67201 states and 114641 transitions. [2023-12-25 05:41:29,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:41:29,719 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, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 167 [2023-12-25 05:41:29,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:41:29,946 INFO L225 Difference]: With dead ends: 67201 [2023-12-25 05:41:29,946 INFO L226 Difference]: Without dead ends: 43721 [2023-12-25 05:41:29,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 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 05:41:29,981 INFO L413 NwaCegarLoop]: 834 mSDtfsCounter, 153 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:41:29,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 1627 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:41:30,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43721 states. [2023-12-25 05:41:31,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43721 to 43711. [2023-12-25 05:41:31,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43711 states, 37393 states have (on average 1.6470729815740914) internal successors, (61589), 38580 states have internal predecessors, (61589), 6232 states have call successors, (6232), 81 states have call predecessors, (6232), 85 states have return successors, (6238), 6230 states have call predecessors, (6238), 6230 states have call successors, (6238) [2023-12-25 05:41:31,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43711 states to 43711 states and 74059 transitions. [2023-12-25 05:41:31,580 INFO L78 Accepts]: Start accepts. Automaton has 43711 states and 74059 transitions. Word has length 167 [2023-12-25 05:41:31,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:41:31,580 INFO L495 AbstractCegarLoop]: Abstraction has 43711 states and 74059 transitions. [2023-12-25 05:41:31,580 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, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:31,580 INFO L276 IsEmpty]: Start isEmpty. Operand 43711 states and 74059 transitions. [2023-12-25 05:41:31,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-25 05:41:31,710 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:41:31,710 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:41:31,719 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 05:41:31,917 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 05:41:31,917 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:41:31,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:41:31,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1696381788, now seen corresponding path program 1 times [2023-12-25 05:41:31,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:41:31,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1383953225] [2023-12-25 05:41:31,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:41:31,918 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 05:41:31,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:41:31,920 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 05:41:31,931 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 05:41:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:41:32,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:41:32,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:41:32,256 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-25 05:41:32,256 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:41:32,256 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:41:32,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1383953225] [2023-12-25 05:41:32,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1383953225] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:41:32,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:41:32,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:41:32,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501658998] [2023-12-25 05:41:32,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:41:32,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:41:32,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:41:32,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:41:32,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:41:32,268 INFO L87 Difference]: Start difference. First operand 43711 states and 74059 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:34,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:41:34,422 INFO L93 Difference]: Finished difference Result 117978 states and 200465 transitions. [2023-12-25 05:41:34,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:41:34,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 168 [2023-12-25 05:41:34,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:41:34,695 INFO L225 Difference]: With dead ends: 117978 [2023-12-25 05:41:34,695 INFO L226 Difference]: Without dead ends: 79127 [2023-12-25 05:41:34,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 166 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 05:41:34,887 INFO L413 NwaCegarLoop]: 844 mSDtfsCounter, 151 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:41:34,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1669 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:41:34,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79127 states. [2023-12-25 05:41:37,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79127 to 79117. [2023-12-25 05:41:38,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79117 states, 68013 states have (on average 1.6430388308117565) internal successors, (111748), 69724 states have internal predecessors, (111748), 11018 states have call successors, (11018), 81 states have call predecessors, (11018), 85 states have return successors, (11024), 11016 states have call predecessors, (11024), 11016 states have call successors, (11024) [2023-12-25 05:41:38,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79117 states to 79117 states and 133790 transitions. [2023-12-25 05:41:38,487 INFO L78 Accepts]: Start accepts. Automaton has 79117 states and 133790 transitions. Word has length 168 [2023-12-25 05:41:38,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:41:38,487 INFO L495 AbstractCegarLoop]: Abstraction has 79117 states and 133790 transitions. [2023-12-25 05:41:38,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:38,488 INFO L276 IsEmpty]: Start isEmpty. Operand 79117 states and 133790 transitions. [2023-12-25 05:41:38,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-25 05:41:38,767 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:41:38,767 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:41:38,778 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 05:41:38,974 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 05:41:38,975 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:41:38,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:41:38,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1180133657, now seen corresponding path program 1 times [2023-12-25 05:41:38,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:41:38,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [114950547] [2023-12-25 05:41:38,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:41:38,994 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 05:41:38,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:41:38,995 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 05:41:38,996 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 05:41:39,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:41:39,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:41:39,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:41:39,339 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-25 05:41:39,339 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:41:39,339 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:41:39,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [114950547] [2023-12-25 05:41:39,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [114950547] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:41:39,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:41:39,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:41:39,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016600761] [2023-12-25 05:41:39,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:41:39,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:41:39,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:41:39,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:41:39,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:41:39,341 INFO L87 Difference]: Start difference. First operand 79117 states and 133790 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, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:43,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:41:43,167 INFO L93 Difference]: Finished difference Result 218398 states and 370733 transitions. [2023-12-25 05:41:43,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:41:43,167 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, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 169 [2023-12-25 05:41:43,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:41:43,677 INFO L225 Difference]: With dead ends: 218398 [2023-12-25 05:41:43,677 INFO L226 Difference]: Without dead ends: 145627 [2023-12-25 05:41:43,951 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 05:41:43,951 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 149 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:41:43,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 1660 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:41:44,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145627 states. [2023-12-25 05:41:48,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145627 to 145617. [2023-12-25 05:41:49,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145617 states, 125616 states have (on average 1.6425534963698891) internal successors, (206331), 128888 states have internal predecessors, (206331), 19915 states have call successors, (19915), 81 states have call predecessors, (19915), 85 states have return successors, (19921), 19913 states have call predecessors, (19921), 19913 states have call successors, (19921) [2023-12-25 05:41:49,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145617 states to 145617 states and 246167 transitions. [2023-12-25 05:41:49,647 INFO L78 Accepts]: Start accepts. Automaton has 145617 states and 246167 transitions. Word has length 169 [2023-12-25 05:41:49,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:41:49,649 INFO L495 AbstractCegarLoop]: Abstraction has 145617 states and 246167 transitions. [2023-12-25 05:41:49,649 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, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:49,649 INFO L276 IsEmpty]: Start isEmpty. Operand 145617 states and 246167 transitions. [2023-12-25 05:41:50,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-12-25 05:41:50,201 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:41:50,202 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:41:50,210 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 (19)] Forceful destruction successful, exit code 0 [2023-12-25 05:41:50,410 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 05:41:50,411 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:41:50,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:41:50,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1660348379, now seen corresponding path program 1 times [2023-12-25 05:41:50,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:41:50,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2092680453] [2023-12-25 05:41:50,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:41:50,412 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 05:41:50,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:41:50,413 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 05:41:50,415 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 05:41:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:41:50,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:41:50,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:41:50,703 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-25 05:41:50,703 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:41:50,704 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:41:50,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2092680453] [2023-12-25 05:41:50,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2092680453] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:41:50,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:41:50,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:41:50,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243803296] [2023-12-25 05:41:50,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:41:50,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:41:50,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:41:50,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:41:50,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:41:50,705 INFO L87 Difference]: Start difference. First operand 145617 states and 246167 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, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:41:56,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:41:56,727 INFO L93 Difference]: Finished difference Result 274761 states and 464542 transitions. [2023-12-25 05:41:56,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:41:56,727 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, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 170 [2023-12-25 05:41:56,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:41:57,953 INFO L225 Difference]: With dead ends: 274761 [2023-12-25 05:41:57,954 INFO L226 Difference]: Without dead ends: 274141 [2023-12-25 05:41:58,058 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 05:41:58,059 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 147 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:41:58,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1660 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:41:58,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274141 states. [2023-12-25 05:42:07,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274141 to 274131. [2023-12-25 05:42:08,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274131 states, 237544 states have (on average 1.635507527026572) internal successors, (388505), 241853 states have internal predecessors, (388505), 36501 states have call successors, (36501), 81 states have call predecessors, (36501), 85 states have return successors, (36507), 36499 states have call predecessors, (36507), 36499 states have call successors, (36507) [2023-12-25 05:42:09,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274131 states to 274131 states and 461513 transitions. [2023-12-25 05:42:09,478 INFO L78 Accepts]: Start accepts. Automaton has 274131 states and 461513 transitions. Word has length 170 [2023-12-25 05:42:09,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:42:09,478 INFO L495 AbstractCegarLoop]: Abstraction has 274131 states and 461513 transitions. [2023-12-25 05:42:09,478 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, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:42:09,479 INFO L276 IsEmpty]: Start isEmpty. Operand 274131 states and 461513 transitions. [2023-12-25 05:42:10,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-25 05:42:10,173 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:42:10,173 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:42:10,185 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 (20)] Forceful destruction successful, exit code 0 [2023-12-25 05:42:10,382 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 05:42:10,383 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:42:10,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:42:10,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1212679170, now seen corresponding path program 1 times [2023-12-25 05:42:10,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:42:10,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [983829727] [2023-12-25 05:42:10,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:42:10,385 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 05:42:10,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:42:10,386 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 05:42:10,387 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 05:42:10,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:42:10,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 05:42:10,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:42:10,831 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-25 05:42:10,831 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:42:10,831 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:42:10,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [983829727] [2023-12-25 05:42:10,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [983829727] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:42:10,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:42:10,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:42:10,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136531356] [2023-12-25 05:42:10,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:42:10,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:42:10,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:42:10,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:42:10,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:42:10,833 INFO L87 Difference]: Start difference. First operand 274131 states and 461513 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:42:23,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:42:23,624 INFO L93 Difference]: Finished difference Result 540592 states and 910478 transitions. [2023-12-25 05:42:23,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:42:23,624 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 171 [2023-12-25 05:42:23,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:42:26,902 INFO L225 Difference]: With dead ends: 540592 [2023-12-25 05:42:26,903 INFO L226 Difference]: Without dead ends: 539986 [2023-12-25 05:42:27,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:42:27,097 INFO L413 NwaCegarLoop]: 832 mSDtfsCounter, 713 mSDsluCounter, 2386 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 3218 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:42:27,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 3218 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:42:27,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539986 states. [2023-12-25 05:42:48,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539986 to 539972. [2023-12-25 05:42:49,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539972 states, 467956 states have (on average 1.6366068604740616) internal successors, (765860), 476437 states have internal predecessors, (765860), 71854 states have call successors, (71854), 157 states have call predecessors, (71854), 161 states have return successors, (71858), 71848 states have call predecessors, (71858), 71850 states have call successors, (71858) [2023-12-25 05:42:53,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539972 states to 539972 states and 909572 transitions. [2023-12-25 05:42:53,903 INFO L78 Accepts]: Start accepts. Automaton has 539972 states and 909572 transitions. Word has length 171 [2023-12-25 05:42:53,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:42:53,904 INFO L495 AbstractCegarLoop]: Abstraction has 539972 states and 909572 transitions. [2023-12-25 05:42:53,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:42:53,904 INFO L276 IsEmpty]: Start isEmpty. Operand 539972 states and 909572 transitions.