/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_spec3_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:32:09,173 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:32:09,259 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:32:09,265 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:32:09,265 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:32:09,295 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:32:09,295 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:32:09,296 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:32:09,297 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:32:09,301 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:32:09,301 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:32:09,302 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:32:09,302 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:32:09,303 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:32:09,304 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:32:09,304 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:32:09,304 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:32:09,305 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:32:09,305 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:32:09,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:32:09,307 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:32:09,307 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:32:09,307 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:32:09,307 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:32:09,308 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:32:09,308 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:32:09,308 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:32:09,308 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:32:09,309 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:32:09,309 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:32:09,310 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:32:09,310 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:32:09,310 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:32:09,310 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:32:09,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:32:09,311 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:32:09,311 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:32:09,311 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:32:09,311 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:32:09,311 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:32:09,312 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:32:09,312 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:32:09,312 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:32:09,312 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:32:09,313 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:32:09,313 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:32:09,313 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:32:09,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:32:09,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:32:09,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:32:09,617 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:32:09,617 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:32:09,619 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product35.cil.c [2023-12-16 17:32:11,165 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:32:11,438 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:32:11,439 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product35.cil.c [2023-12-16 17:32:11,475 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27269d7c5/520f079ad5984329a59f9e38bd588cf2/FLAG8ea73bb28 [2023-12-16 17:32:11,493 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27269d7c5/520f079ad5984329a59f9e38bd588cf2 [2023-12-16 17:32:11,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:32:11,495 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:32:11,497 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:32:11,497 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:32:11,501 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:32:11,502 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:32:11" (1/1) ... [2023-12-16 17:32:11,503 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a0b845d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:11, skipping insertion in model container [2023-12-16 17:32:11,503 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:32:11" (1/1) ... [2023-12-16 17:32:11,585 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:32:12,119 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product35.cil.c[61781,61794] [2023-12-16 17:32:12,134 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:32:12,157 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-16 17:32:12,175 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:32:12,288 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product35.cil.c[61781,61794] [2023-12-16 17:32:12,291 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:32:12,314 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:32:12,321 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-12-16 17:32:12,322 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [392] [2023-12-16 17:32:12,322 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [854] [2023-12-16 17:32:12,322 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [913] [2023-12-16 17:32:12,322 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1973] [2023-12-16 17:32:12,322 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2372] [2023-12-16 17:32:12,322 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2507] [2023-12-16 17:32:12,323 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2873] [2023-12-16 17:32:12,323 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2908] [2023-12-16 17:32:12,323 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2925] [2023-12-16 17:32:12,323 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2934] [2023-12-16 17:32:12,411 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product35.cil.c[61781,61794] [2023-12-16 17:32:12,414 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:32:12,441 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:32:12,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:12 WrapperNode [2023-12-16 17:32:12,442 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:32:12,442 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:32:12,443 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:32:12,443 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:32:12,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:12" (1/1) ... [2023-12-16 17:32:12,480 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:12" (1/1) ... [2023-12-16 17:32:12,525 INFO L138 Inliner]: procedures = 140, calls = 234, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1099 [2023-12-16 17:32:12,526 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:32:12,527 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:32:12,527 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:32:12,527 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:32:12,536 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:12" (1/1) ... [2023-12-16 17:32:12,536 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:12" (1/1) ... [2023-12-16 17:32:12,543 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:12" (1/1) ... [2023-12-16 17:32:12,577 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2023-12-16 17:32:12,577 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:12" (1/1) ... [2023-12-16 17:32:12,577 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:12" (1/1) ... [2023-12-16 17:32:12,603 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:12" (1/1) ... [2023-12-16 17:32:12,627 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:12" (1/1) ... [2023-12-16 17:32:12,633 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:12" (1/1) ... [2023-12-16 17:32:12,638 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:12" (1/1) ... [2023-12-16 17:32:12,652 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:32:12,653 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:32:12,653 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:32:12,654 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:32:12,654 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:12" (1/1) ... [2023-12-16 17:32:12,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:32:12,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:32:12,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 17:32:12,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 17:32:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-16 17:32:12,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-16 17:32:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-16 17:32:12,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-16 17:32:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-16 17:32:12,743 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-16 17:32:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-16 17:32:12,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-16 17:32:12,744 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-16 17:32:12,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-16 17:32:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-16 17:32:12,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-16 17:32:12,747 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-12-16 17:32:12,747 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-12-16 17:32:12,747 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-16 17:32:12,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-16 17:32:12,747 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-16 17:32:12,747 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-16 17:32:12,747 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-16 17:32:12,747 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-16 17:32:12,747 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-16 17:32:12,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-16 17:32:12,747 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-16 17:32:12,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-16 17:32:12,748 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-16 17:32:12,748 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-16 17:32:12,748 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-16 17:32:12,748 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-16 17:32:12,748 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-16 17:32:12,748 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-16 17:32:12,749 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-16 17:32:12,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-16 17:32:12,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:32:12,749 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-16 17:32:12,749 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-16 17:32:12,749 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-16 17:32:12,749 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-16 17:32:12,749 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-16 17:32:12,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-16 17:32:12,749 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-16 17:32:12,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-16 17:32:12,750 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-16 17:32:12,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-16 17:32:12,750 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-16 17:32:12,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-16 17:32:12,750 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-16 17:32:12,750 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-16 17:32:12,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:32:12,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 17:32:12,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 17:32:12,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 17:32:12,751 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-16 17:32:12,751 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-16 17:32:12,751 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-16 17:32:12,751 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-16 17:32:12,751 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-16 17:32:12,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-16 17:32:12,751 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-16 17:32:12,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-16 17:32:12,752 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-16 17:32:12,752 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-16 17:32:12,752 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-16 17:32:12,752 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-16 17:32:12,752 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-16 17:32:12,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-16 17:32:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:32:12,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:32:12,972 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:32:12,976 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:32:14,075 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:32:14,184 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:32:14,184 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 17:32:14,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:32:14 BoogieIcfgContainer [2023-12-16 17:32:14,185 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:32:14,187 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:32:14,187 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:32:14,190 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:32:14,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:32:11" (1/3) ... [2023-12-16 17:32:14,191 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ee1fa20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:32:14, skipping insertion in model container [2023-12-16 17:32:14,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:32:12" (2/3) ... [2023-12-16 17:32:14,192 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ee1fa20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:32:14, skipping insertion in model container [2023-12-16 17:32:14,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:32:14" (3/3) ... [2023-12-16 17:32:14,193 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product35.cil.c [2023-12-16 17:32:14,206 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:32:14,208 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:32:14,273 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:32:14,277 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;@2987a1b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:32:14,278 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:32:14,285 INFO L276 IsEmpty]: Start isEmpty. Operand has 444 states, 332 states have (on average 1.5843373493975903) internal successors, (526), 339 states have internal predecessors, (526), 80 states have call successors, (80), 30 states have call predecessors, (80), 30 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-16 17:32:14,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-16 17:32:14,313 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:14,314 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:14,314 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:14,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:14,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1372110673, now seen corresponding path program 1 times [2023-12-16 17:32:14,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:14,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1978596691] [2023-12-16 17:32:14,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:14,337 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 [2023-12-16 17:32:14,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:14,339 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) [2023-12-16 17:32:14,352 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 [2023-12-16 17:32:14,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:14,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:32:14,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:14,890 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-12-16 17:32:14,891 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:14,892 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:14,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1978596691] [2023-12-16 17:32:14,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1978596691] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:14,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:14,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:32:14,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96690339] [2023-12-16 17:32:14,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:14,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:32:14,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:14,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:32:14,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:32:14,931 INFO L87 Difference]: Start difference. First operand has 444 states, 332 states have (on average 1.5843373493975903) internal successors, (526), 339 states have internal predecessors, (526), 80 states have call successors, (80), 30 states have call predecessors, (80), 30 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 17:32:15,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:15,096 INFO L93 Difference]: Finished difference Result 699 states and 1064 transitions. [2023-12-16 17:32:15,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:32:15,099 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 150 [2023-12-16 17:32:15,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:15,116 INFO L225 Difference]: With dead ends: 699 [2023-12-16 17:32:15,116 INFO L226 Difference]: Without dead ends: 440 [2023-12-16 17:32:15,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:32:15,132 INFO L413 NwaCegarLoop]: 659 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:15,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 659 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:15,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2023-12-16 17:32:15,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2023-12-16 17:32:15,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 330 states have (on average 1.5727272727272728) internal successors, (519), 335 states have internal predecessors, (519), 80 states have call successors, (80), 30 states have call predecessors, (80), 29 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2023-12-16 17:32:15,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 676 transitions. [2023-12-16 17:32:15,207 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 676 transitions. Word has length 150 [2023-12-16 17:32:15,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:15,209 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 676 transitions. [2023-12-16 17:32:15,209 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 17:32:15,209 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 676 transitions. [2023-12-16 17:32:15,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-16 17:32:15,214 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:15,214 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:15,226 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 [2023-12-16 17:32:15,423 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 [2023-12-16 17:32:15,425 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:15,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:15,433 INFO L85 PathProgramCache]: Analyzing trace with hash -621594579, now seen corresponding path program 1 times [2023-12-16 17:32:15,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:15,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1072406821] [2023-12-16 17:32:15,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:15,434 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 [2023-12-16 17:32:15,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:15,435 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) [2023-12-16 17:32:15,440 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 [2023-12-16 17:32:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:15,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:32:15,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:15,807 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 17:32:15,807 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:15,807 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:15,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1072406821] [2023-12-16 17:32:15,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1072406821] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:15,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:15,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:32:15,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815453514] [2023-12-16 17:32:15,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:15,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:32:15,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:15,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:32:15,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:32:15,811 INFO L87 Difference]: Start difference. First operand 440 states and 676 transitions. Second operand has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 17:32:16,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:16,023 INFO L93 Difference]: Finished difference Result 875 states and 1346 transitions. [2023-12-16 17:32:16,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:32:16,025 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 133 [2023-12-16 17:32:16,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:16,031 INFO L225 Difference]: With dead ends: 875 [2023-12-16 17:32:16,031 INFO L226 Difference]: Without dead ends: 442 [2023-12-16 17:32:16,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:32:16,035 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 8 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2577 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:16,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2577 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:16,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2023-12-16 17:32:16,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2023-12-16 17:32:16,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 331 states have (on average 1.5709969788519638) internal successors, (520), 337 states have internal predecessors, (520), 80 states have call successors, (80), 30 states have call predecessors, (80), 30 states have return successors, (79), 76 states have call predecessors, (79), 77 states have call successors, (79) [2023-12-16 17:32:16,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 679 transitions. [2023-12-16 17:32:16,070 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 679 transitions. Word has length 133 [2023-12-16 17:32:16,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:16,071 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 679 transitions. [2023-12-16 17:32:16,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 17:32:16,071 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 679 transitions. [2023-12-16 17:32:16,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 17:32:16,074 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:16,074 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:16,113 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 (3)] Ended with exit code 0 [2023-12-16 17:32:16,280 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 [2023-12-16 17:32:16,280 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:16,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:16,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1634724580, now seen corresponding path program 1 times [2023-12-16 17:32:16,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:16,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [529195503] [2023-12-16 17:32:16,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:16,308 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 [2023-12-16 17:32:16,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:16,313 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) [2023-12-16 17:32:16,314 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 [2023-12-16 17:32:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:16,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:32:16,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:16,727 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 17:32:16,728 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:16,728 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:16,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [529195503] [2023-12-16 17:32:16,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [529195503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:16,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:16,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:32:16,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063315709] [2023-12-16 17:32:16,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:16,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:32:16,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:16,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:32:16,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:32:16,732 INFO L87 Difference]: Start difference. First operand 442 states and 679 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-16 17:32:16,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:16,944 INFO L93 Difference]: Finished difference Result 877 states and 1350 transitions. [2023-12-16 17:32:16,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:32:16,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 152 [2023-12-16 17:32:16,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:16,949 INFO L225 Difference]: With dead ends: 877 [2023-12-16 17:32:16,949 INFO L226 Difference]: Without dead ends: 444 [2023-12-16 17:32:16,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:32:16,952 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 8 mSDsluCounter, 1918 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2563 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:16,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2563 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:32:16,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2023-12-16 17:32:17,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 444. [2023-12-16 17:32:17,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 332 states have (on average 1.569277108433735) internal successors, (521), 339 states have internal predecessors, (521), 80 states have call successors, (80), 30 states have call predecessors, (80), 31 states have return successors, (83), 76 states have call predecessors, (83), 77 states have call successors, (83) [2023-12-16 17:32:17,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 684 transitions. [2023-12-16 17:32:17,009 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 684 transitions. Word has length 152 [2023-12-16 17:32:17,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:17,009 INFO L495 AbstractCegarLoop]: Abstraction has 444 states and 684 transitions. [2023-12-16 17:32:17,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-16 17:32:17,010 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 684 transitions. [2023-12-16 17:32:17,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-16 17:32:17,012 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:17,012 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:17,024 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 [2023-12-16 17:32:17,222 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 [2023-12-16 17:32:17,222 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:17,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:17,223 INFO L85 PathProgramCache]: Analyzing trace with hash 798811739, now seen corresponding path program 1 times [2023-12-16 17:32:17,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:17,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [508496629] [2023-12-16 17:32:17,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:17,224 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 [2023-12-16 17:32:17,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:17,226 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) [2023-12-16 17:32:17,265 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 [2023-12-16 17:32:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:17,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:32:17,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:17,552 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 17:32:17,552 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:17,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:17,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [508496629] [2023-12-16 17:32:17,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [508496629] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:17,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:17,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:32:17,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450803445] [2023-12-16 17:32:17,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:17,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:32:17,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:17,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:32:17,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:32:17,555 INFO L87 Difference]: Start difference. First operand 444 states and 684 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 17:32:17,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:17,684 INFO L93 Difference]: Finished difference Result 869 states and 1340 transitions. [2023-12-16 17:32:17,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:32:17,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 135 [2023-12-16 17:32:17,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:17,688 INFO L225 Difference]: With dead ends: 869 [2023-12-16 17:32:17,688 INFO L226 Difference]: Without dead ends: 444 [2023-12-16 17:32:17,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:32:17,691 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 8 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2577 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:17,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2577 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:17,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2023-12-16 17:32:17,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 444. [2023-12-16 17:32:17,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 332 states have (on average 1.569277108433735) internal successors, (521), 339 states have internal predecessors, (521), 80 states have call successors, (80), 30 states have call predecessors, (80), 31 states have return successors, (82), 76 states have call predecessors, (82), 77 states have call successors, (82) [2023-12-16 17:32:17,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 683 transitions. [2023-12-16 17:32:17,711 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 683 transitions. Word has length 135 [2023-12-16 17:32:17,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:17,712 INFO L495 AbstractCegarLoop]: Abstraction has 444 states and 683 transitions. [2023-12-16 17:32:17,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 17:32:17,712 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 683 transitions. [2023-12-16 17:32:17,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-16 17:32:17,715 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:17,716 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:17,737 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 [2023-12-16 17:32:17,926 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 [2023-12-16 17:32:17,926 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:17,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:17,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1828291466, now seen corresponding path program 2 times [2023-12-16 17:32:17,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:17,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [421725844] [2023-12-16 17:32:17,928 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 17:32:17,928 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 [2023-12-16 17:32:17,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:17,946 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) [2023-12-16 17:32:17,978 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 [2023-12-16 17:32:18,191 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-16 17:32:18,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 17:32:18,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:18,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:18,216 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-16 17:32:18,216 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:18,217 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:18,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [421725844] [2023-12-16 17:32:18,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [421725844] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:18,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:18,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:18,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495278068] [2023-12-16 17:32:18,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:18,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:18,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:18,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:18,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:18,218 INFO L87 Difference]: Start difference. First operand 444 states and 683 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:32:18,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:18,274 INFO L93 Difference]: Finished difference Result 698 states and 1051 transitions. [2023-12-16 17:32:18,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:18,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 136 [2023-12-16 17:32:18,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:18,278 INFO L225 Difference]: With dead ends: 698 [2023-12-16 17:32:18,278 INFO L226 Difference]: Without dead ends: 446 [2023-12-16 17:32:18,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:18,280 INFO L413 NwaCegarLoop]: 656 mSDtfsCounter, 0 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:18,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1311 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:18,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2023-12-16 17:32:18,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 446. [2023-12-16 17:32:18,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 334 states have (on average 1.5658682634730539) internal successors, (523), 341 states have internal predecessors, (523), 80 states have call successors, (80), 30 states have call predecessors, (80), 31 states have return successors, (82), 76 states have call predecessors, (82), 77 states have call successors, (82) [2023-12-16 17:32:18,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 685 transitions. [2023-12-16 17:32:18,298 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 685 transitions. Word has length 136 [2023-12-16 17:32:18,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:18,298 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 685 transitions. [2023-12-16 17:32:18,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:32:18,299 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 685 transitions. [2023-12-16 17:32:18,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 17:32:18,301 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:18,301 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:18,310 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 [2023-12-16 17:32:18,507 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 [2023-12-16 17:32:18,508 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:18,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:18,509 INFO L85 PathProgramCache]: Analyzing trace with hash -258070369, now seen corresponding path program 1 times [2023-12-16 17:32:18,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:18,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1302497727] [2023-12-16 17:32:18,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:18,510 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 [2023-12-16 17:32:18,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:18,521 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) [2023-12-16 17:32:18,523 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 [2023-12-16 17:32:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:18,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:32:18,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:18,905 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-16 17:32:18,905 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:18,906 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:18,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1302497727] [2023-12-16 17:32:18,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1302497727] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:18,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:18,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:32:18,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894121500] [2023-12-16 17:32:18,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:18,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:32:18,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:18,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:32:18,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:32:18,908 INFO L87 Difference]: Start difference. First operand 446 states and 685 transitions. Second operand has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-16 17:32:19,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:19,042 INFO L93 Difference]: Finished difference Result 875 states and 1347 transitions. [2023-12-16 17:32:19,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:32:19,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 161 [2023-12-16 17:32:19,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:19,046 INFO L225 Difference]: With dead ends: 875 [2023-12-16 17:32:19,046 INFO L226 Difference]: Without dead ends: 448 [2023-12-16 17:32:19,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:32:19,048 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 6 mSDsluCounter, 1931 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2579 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:19,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2579 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:19,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2023-12-16 17:32:19,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 448. [2023-12-16 17:32:19,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 335 states have (on average 1.5641791044776119) internal successors, (524), 343 states have internal predecessors, (524), 80 states have call successors, (80), 30 states have call predecessors, (80), 32 states have return successors, (84), 76 states have call predecessors, (84), 77 states have call successors, (84) [2023-12-16 17:32:19,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 688 transitions. [2023-12-16 17:32:19,067 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 688 transitions. Word has length 161 [2023-12-16 17:32:19,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:19,067 INFO L495 AbstractCegarLoop]: Abstraction has 448 states and 688 transitions. [2023-12-16 17:32:19,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-16 17:32:19,068 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 688 transitions. [2023-12-16 17:32:19,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-16 17:32:19,070 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:19,070 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:19,093 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 (7)] Forceful destruction successful, exit code 0 [2023-12-16 17:32:19,279 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 [2023-12-16 17:32:19,280 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:19,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:19,280 INFO L85 PathProgramCache]: Analyzing trace with hash -490712171, now seen corresponding path program 1 times [2023-12-16 17:32:19,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:19,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [470444765] [2023-12-16 17:32:19,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:19,281 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 [2023-12-16 17:32:19,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:19,283 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) [2023-12-16 17:32:19,317 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 [2023-12-16 17:32:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:19,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:32:19,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:19,662 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-12-16 17:32:19,662 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:19,662 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:19,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [470444765] [2023-12-16 17:32:19,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [470444765] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:19,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:19,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:32:19,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772271686] [2023-12-16 17:32:19,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:19,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:32:19,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:19,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:32:19,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:32:19,665 INFO L87 Difference]: Start difference. First operand 448 states and 688 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-16 17:32:19,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:19,782 INFO L93 Difference]: Finished difference Result 873 states and 1342 transitions. [2023-12-16 17:32:19,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:32:19,782 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 162 [2023-12-16 17:32:19,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:19,784 INFO L225 Difference]: With dead ends: 873 [2023-12-16 17:32:19,784 INFO L226 Difference]: Without dead ends: 448 [2023-12-16 17:32:19,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:32:19,786 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 8 mSDsluCounter, 1919 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2564 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:19,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2564 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:19,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2023-12-16 17:32:19,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 448. [2023-12-16 17:32:19,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 335 states have (on average 1.5641791044776119) internal successors, (524), 343 states have internal predecessors, (524), 80 states have call successors, (80), 30 states have call predecessors, (80), 32 states have return successors, (83), 76 states have call predecessors, (83), 77 states have call successors, (83) [2023-12-16 17:32:19,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 687 transitions. [2023-12-16 17:32:19,798 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 687 transitions. Word has length 162 [2023-12-16 17:32:19,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:19,798 INFO L495 AbstractCegarLoop]: Abstraction has 448 states and 687 transitions. [2023-12-16 17:32:19,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-16 17:32:19,799 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 687 transitions. [2023-12-16 17:32:19,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-16 17:32:19,800 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:19,800 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:19,810 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 [2023-12-16 17:32:20,008 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 [2023-12-16 17:32:20,009 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:20,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:20,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1397768122, now seen corresponding path program 2 times [2023-12-16 17:32:20,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:20,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409347663] [2023-12-16 17:32:20,010 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 17:32:20,010 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 [2023-12-16 17:32:20,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:20,015 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) [2023-12-16 17:32:20,016 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 [2023-12-16 17:32:20,335 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 17:32:20,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 17:32:20,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-16 17:32:20,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:20,628 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 17:32:20,628 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:32:21,043 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-16 17:32:21,043 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:21,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409347663] [2023-12-16 17:32:21,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409347663] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:32:21,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:32:21,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-16 17:32:21,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822091651] [2023-12-16 17:32:21,044 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:32:21,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 17:32:21,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:21,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 17:32:21,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-12-16 17:32:21,046 INFO L87 Difference]: Start difference. First operand 448 states and 687 transitions. Second operand has 16 states, 16 states have (on average 10.875) internal successors, (174), 14 states have internal predecessors, (174), 4 states have call successors, (47), 6 states have call predecessors, (47), 9 states have return successors, (41), 6 states have call predecessors, (41), 4 states have call successors, (41) [2023-12-16 17:32:26,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:26,493 INFO L93 Difference]: Finished difference Result 1487 states and 2299 transitions. [2023-12-16 17:32:26,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 17:32:26,494 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.875) internal successors, (174), 14 states have internal predecessors, (174), 4 states have call successors, (47), 6 states have call predecessors, (47), 9 states have return successors, (41), 6 states have call predecessors, (41), 4 states have call successors, (41) Word has length 163 [2023-12-16 17:32:26,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:26,500 INFO L225 Difference]: With dead ends: 1487 [2023-12-16 17:32:26,500 INFO L226 Difference]: Without dead ends: 1240 [2023-12-16 17:32:26,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2023-12-16 17:32:26,502 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 2686 mSDsluCounter, 2247 mSDsCounter, 0 mSdLazyCounter, 5596 mSolverCounterSat, 781 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2768 SdHoareTripleChecker+Valid, 2591 SdHoareTripleChecker+Invalid, 6377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 781 IncrementalHoareTripleChecker+Valid, 5596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:26,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2768 Valid, 2591 Invalid, 6377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [781 Valid, 5596 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-12-16 17:32:26,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2023-12-16 17:32:26,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 895. [2023-12-16 17:32:26,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 673 states have (on average 1.5646359583952452) internal successors, (1053), 685 states have internal predecessors, (1053), 156 states have call successors, (156), 60 states have call predecessors, (156), 65 states have return successors, (167), 153 states have call predecessors, (167), 152 states have call successors, (167) [2023-12-16 17:32:26,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1376 transitions. [2023-12-16 17:32:26,541 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1376 transitions. Word has length 163 [2023-12-16 17:32:26,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:26,542 INFO L495 AbstractCegarLoop]: Abstraction has 895 states and 1376 transitions. [2023-12-16 17:32:26,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.875) internal successors, (174), 14 states have internal predecessors, (174), 4 states have call successors, (47), 6 states have call predecessors, (47), 9 states have return successors, (41), 6 states have call predecessors, (41), 4 states have call successors, (41) [2023-12-16 17:32:26,542 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1376 transitions. [2023-12-16 17:32:26,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-16 17:32:26,544 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:26,544 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:26,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 17:32:26,751 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 [2023-12-16 17:32:26,752 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:26,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:26,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1828197497, now seen corresponding path program 1 times [2023-12-16 17:32:26,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:26,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2025687390] [2023-12-16 17:32:26,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:26,753 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 [2023-12-16 17:32:26,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:26,769 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) [2023-12-16 17:32:26,802 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 [2023-12-16 17:32:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:27,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:32:27,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:27,062 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 17:32:27,063 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:27,063 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:27,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2025687390] [2023-12-16 17:32:27,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2025687390] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:27,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:27,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:32:27,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140483931] [2023-12-16 17:32:27,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:27,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:32:27,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:27,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:32:27,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:32:27,075 INFO L87 Difference]: Start difference. First operand 895 states and 1376 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 17:32:27,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:27,241 INFO L93 Difference]: Finished difference Result 1757 states and 2710 transitions. [2023-12-16 17:32:27,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:32:27,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 146 [2023-12-16 17:32:27,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:27,247 INFO L225 Difference]: With dead ends: 1757 [2023-12-16 17:32:27,247 INFO L226 Difference]: Without dead ends: 901 [2023-12-16 17:32:27,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:32:27,252 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 6 mSDsluCounter, 1920 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2566 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:27,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2566 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:27,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2023-12-16 17:32:27,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 899. [2023-12-16 17:32:27,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 899 states, 675 states have (on average 1.5629629629629629) internal successors, (1055), 689 states have internal predecessors, (1055), 156 states have call successors, (156), 60 states have call predecessors, (156), 67 states have return successors, (172), 153 states have call predecessors, (172), 152 states have call successors, (172) [2023-12-16 17:32:27,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1383 transitions. [2023-12-16 17:32:27,299 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1383 transitions. Word has length 146 [2023-12-16 17:32:27,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:27,300 INFO L495 AbstractCegarLoop]: Abstraction has 899 states and 1383 transitions. [2023-12-16 17:32:27,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 17:32:27,300 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1383 transitions. [2023-12-16 17:32:27,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-16 17:32:27,303 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:27,304 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:27,329 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 [2023-12-16 17:32:27,513 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 [2023-12-16 17:32:27,513 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:27,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:27,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1806054721, now seen corresponding path program 1 times [2023-12-16 17:32:27,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:27,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786605993] [2023-12-16 17:32:27,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:27,515 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 [2023-12-16 17:32:27,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:27,529 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) [2023-12-16 17:32:27,530 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 [2023-12-16 17:32:27,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:27,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:27,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:27,903 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-16 17:32:27,903 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:27,904 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:27,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786605993] [2023-12-16 17:32:27,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1786605993] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:27,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:27,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:27,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449603209] [2023-12-16 17:32:27,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:27,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:27,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:27,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:27,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:27,906 INFO L87 Difference]: Start difference. First operand 899 states and 1383 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 17:32:27,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:27,997 INFO L93 Difference]: Finished difference Result 1901 states and 2970 transitions. [2023-12-16 17:32:27,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:27,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 165 [2023-12-16 17:32:27,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:28,003 INFO L225 Difference]: With dead ends: 1901 [2023-12-16 17:32:28,003 INFO L226 Difference]: Without dead ends: 1047 [2023-12-16 17:32:28,007 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 [2023-12-16 17:32:28,008 INFO L413 NwaCegarLoop]: 666 mSDtfsCounter, 136 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1279 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 [2023-12-16 17:32:28,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1279 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:28,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2023-12-16 17:32:28,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1037. [2023-12-16 17:32:28,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 785 states have (on average 1.58343949044586) internal successors, (1243), 799 states have internal predecessors, (1243), 184 states have call successors, (184), 60 states have call predecessors, (184), 67 states have return successors, (208), 181 states have call predecessors, (208), 180 states have call successors, (208) [2023-12-16 17:32:28,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1635 transitions. [2023-12-16 17:32:28,058 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1635 transitions. Word has length 165 [2023-12-16 17:32:28,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:28,058 INFO L495 AbstractCegarLoop]: Abstraction has 1037 states and 1635 transitions. [2023-12-16 17:32:28,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 17:32:28,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1635 transitions. [2023-12-16 17:32:28,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-16 17:32:28,063 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:28,063 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:28,072 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 [2023-12-16 17:32:28,270 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 [2023-12-16 17:32:28,270 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:28,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:28,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1320427355, now seen corresponding path program 1 times [2023-12-16 17:32:28,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:28,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [879349520] [2023-12-16 17:32:28,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:28,272 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 [2023-12-16 17:32:28,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:28,288 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) [2023-12-16 17:32:28,323 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 [2023-12-16 17:32:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:28,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:32:28,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:28,651 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 17:32:28,652 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:28,652 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:28,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [879349520] [2023-12-16 17:32:28,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [879349520] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:28,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:28,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:32:28,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726445577] [2023-12-16 17:32:28,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:28,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:32:28,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:28,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:32:28,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:32:28,654 INFO L87 Difference]: Start difference. First operand 1037 states and 1635 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 17:32:28,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:28,809 INFO L93 Difference]: Finished difference Result 2043 states and 3219 transitions. [2023-12-16 17:32:28,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:32:28,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 148 [2023-12-16 17:32:28,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:28,818 INFO L225 Difference]: With dead ends: 2043 [2023-12-16 17:32:28,818 INFO L226 Difference]: Without dead ends: 1049 [2023-12-16 17:32:28,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:32:28,823 INFO L413 NwaCegarLoop]: 656 mSDtfsCounter, 637 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 1327 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:28,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 1327 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:28,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2023-12-16 17:32:28,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 1045. [2023-12-16 17:32:28,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 791 states have (on average 1.570164348925411) internal successors, (1242), 805 states have internal predecessors, (1242), 184 states have call successors, (184), 62 states have call predecessors, (184), 69 states have return successors, (206), 181 states have call predecessors, (206), 180 states have call successors, (206) [2023-12-16 17:32:28,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1632 transitions. [2023-12-16 17:32:28,876 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1632 transitions. Word has length 148 [2023-12-16 17:32:28,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:28,877 INFO L495 AbstractCegarLoop]: Abstraction has 1045 states and 1632 transitions. [2023-12-16 17:32:28,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 17:32:28,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1632 transitions. [2023-12-16 17:32:28,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-16 17:32:28,881 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:28,881 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:28,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-16 17:32:29,088 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 [2023-12-16 17:32:29,089 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:29,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:29,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1095014744, now seen corresponding path program 1 times [2023-12-16 17:32:29,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:29,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476289739] [2023-12-16 17:32:29,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:29,091 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 [2023-12-16 17:32:29,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:29,092 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) [2023-12-16 17:32:29,093 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 [2023-12-16 17:32:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:29,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:32:29,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:29,397 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:32:29,397 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:32:29,454 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:32:29,455 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:29,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476289739] [2023-12-16 17:32:29,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476289739] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:32:29,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:32:29,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-16 17:32:29,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396486468] [2023-12-16 17:32:29,455 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:32:29,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:32:29,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:29,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:32:29,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:32:29,457 INFO L87 Difference]: Start difference. First operand 1045 states and 1632 transitions. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-16 17:32:29,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:29,847 INFO L93 Difference]: Finished difference Result 2419 states and 3918 transitions. [2023-12-16 17:32:29,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:32:29,848 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 149 [2023-12-16 17:32:29,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:29,857 INFO L225 Difference]: With dead ends: 2419 [2023-12-16 17:32:29,857 INFO L226 Difference]: Without dead ends: 1915 [2023-12-16 17:32:29,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:32:29,860 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 504 mSDsluCounter, 2148 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 2840 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:29,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 2840 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:32:29,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2023-12-16 17:32:29,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1885. [2023-12-16 17:32:29,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1885 states, 1473 states have (on average 1.623896809232858) internal successors, (2392), 1487 states have internal predecessors, (2392), 342 states have call successors, (342), 62 states have call predecessors, (342), 69 states have return successors, (404), 339 states have call predecessors, (404), 338 states have call successors, (404) [2023-12-16 17:32:29,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 3138 transitions. [2023-12-16 17:32:29,949 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 3138 transitions. Word has length 149 [2023-12-16 17:32:29,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:29,949 INFO L495 AbstractCegarLoop]: Abstraction has 1885 states and 3138 transitions. [2023-12-16 17:32:29,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-16 17:32:29,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 3138 transitions. [2023-12-16 17:32:29,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 17:32:29,958 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:29,958 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:29,965 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 (13)] Ended with exit code 0 [2023-12-16 17:32:30,165 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 [2023-12-16 17:32:30,165 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:30,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:30,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1415613152, now seen corresponding path program 1 times [2023-12-16 17:32:30,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:30,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1750482291] [2023-12-16 17:32:30,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:30,167 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 [2023-12-16 17:32:30,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:30,169 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) [2023-12-16 17:32:30,170 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 [2023-12-16 17:32:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:30,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:30,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:30,475 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:32:30,476 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:30,476 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:30,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1750482291] [2023-12-16 17:32:30,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1750482291] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:30,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:30,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:30,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974641414] [2023-12-16 17:32:30,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:30,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:30,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:30,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:30,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:30,484 INFO L87 Difference]: Start difference. First operand 1885 states and 3138 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:32:30,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:30,636 INFO L93 Difference]: Finished difference Result 4447 states and 7543 transitions. [2023-12-16 17:32:30,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:30,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 152 [2023-12-16 17:32:30,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:30,651 INFO L225 Difference]: With dead ends: 4447 [2023-12-16 17:32:30,651 INFO L226 Difference]: Without dead ends: 2699 [2023-12-16 17:32:30,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:30,658 INFO L413 NwaCegarLoop]: 661 mSDtfsCounter, 130 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:30,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1308 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:30,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2699 states. [2023-12-16 17:32:30,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2699 to 2689. [2023-12-16 17:32:30,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2689 states, 2119 states have (on average 1.6451156205757433) internal successors, (3486), 2133 states have internal predecessors, (3486), 500 states have call successors, (500), 62 states have call predecessors, (500), 69 states have return successors, (602), 497 states have call predecessors, (602), 496 states have call successors, (602) [2023-12-16 17:32:30,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2689 states to 2689 states and 4588 transitions. [2023-12-16 17:32:30,782 INFO L78 Accepts]: Start accepts. Automaton has 2689 states and 4588 transitions. Word has length 152 [2023-12-16 17:32:30,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:30,783 INFO L495 AbstractCegarLoop]: Abstraction has 2689 states and 4588 transitions. [2023-12-16 17:32:30,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:32:30,783 INFO L276 IsEmpty]: Start isEmpty. Operand 2689 states and 4588 transitions. [2023-12-16 17:32:30,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 17:32:30,798 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:30,798 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:30,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-16 17:32:31,007 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 [2023-12-16 17:32:31,009 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:31,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:31,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1065590473, now seen corresponding path program 1 times [2023-12-16 17:32:31,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:31,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939293504] [2023-12-16 17:32:31,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:31,010 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 [2023-12-16 17:32:31,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:31,024 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) [2023-12-16 17:32:31,057 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 [2023-12-16 17:32:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:31,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:31,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:31,328 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:32:31,329 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:31,329 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:31,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939293504] [2023-12-16 17:32:31,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1939293504] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:31,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:31,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:31,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19793212] [2023-12-16 17:32:31,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:31,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:31,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:31,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:31,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:31,332 INFO L87 Difference]: Start difference. First operand 2689 states and 4588 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:32:31,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:31,579 INFO L93 Difference]: Finished difference Result 6443 states and 11087 transitions. [2023-12-16 17:32:31,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:31,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 153 [2023-12-16 17:32:31,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:31,605 INFO L225 Difference]: With dead ends: 6443 [2023-12-16 17:32:31,605 INFO L226 Difference]: Without dead ends: 3991 [2023-12-16 17:32:31,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:31,616 INFO L413 NwaCegarLoop]: 653 mSDtfsCounter, 128 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:31,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1299 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:31,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3991 states. [2023-12-16 17:32:31,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3991 to 3981. [2023-12-16 17:32:31,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3981 states, 3173 states have (on average 1.653955247399937) internal successors, (5248), 3187 states have internal predecessors, (5248), 738 states have call successors, (738), 62 states have call predecessors, (738), 69 states have return successors, (872), 735 states have call predecessors, (872), 734 states have call successors, (872) [2023-12-16 17:32:31,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3981 states to 3981 states and 6858 transitions. [2023-12-16 17:32:31,848 INFO L78 Accepts]: Start accepts. Automaton has 3981 states and 6858 transitions. Word has length 153 [2023-12-16 17:32:31,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:31,849 INFO L495 AbstractCegarLoop]: Abstraction has 3981 states and 6858 transitions. [2023-12-16 17:32:31,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:32:31,850 INFO L276 IsEmpty]: Start isEmpty. Operand 3981 states and 6858 transitions. [2023-12-16 17:32:31,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-16 17:32:31,874 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:31,874 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:31,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-16 17:32:32,083 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 [2023-12-16 17:32:32,083 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:32,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:32,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1933171826, now seen corresponding path program 1 times [2023-12-16 17:32:32,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:32,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [734708113] [2023-12-16 17:32:32,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:32,085 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 [2023-12-16 17:32:32,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:32,089 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) [2023-12-16 17:32:32,092 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 [2023-12-16 17:32:32,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:32,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:32,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:32,361 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:32:32,362 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:32,362 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:32,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [734708113] [2023-12-16 17:32:32,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [734708113] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:32,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:32,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:32,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936081210] [2023-12-16 17:32:32,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:32,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:32,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:32,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:32,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:32,363 INFO L87 Difference]: Start difference. First operand 3981 states and 6858 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:32:32,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:32,664 INFO L93 Difference]: Finished difference Result 9469 states and 16473 transitions. [2023-12-16 17:32:32,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:32,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 154 [2023-12-16 17:32:32,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:32,696 INFO L225 Difference]: With dead ends: 9469 [2023-12-16 17:32:32,696 INFO L226 Difference]: Without dead ends: 5977 [2023-12-16 17:32:32,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:32,708 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 126 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:32,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1294 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:32,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5977 states. [2023-12-16 17:32:32,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5977 to 5967. [2023-12-16 17:32:32,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5967 states, 4835 states have (on average 1.6612202688728024) internal successors, (8032), 4849 states have internal predecessors, (8032), 1062 states have call successors, (1062), 62 states have call predecessors, (1062), 69 states have return successors, (1280), 1059 states have call predecessors, (1280), 1058 states have call successors, (1280) [2023-12-16 17:32:33,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5967 states to 5967 states and 10374 transitions. [2023-12-16 17:32:33,013 INFO L78 Accepts]: Start accepts. Automaton has 5967 states and 10374 transitions. Word has length 154 [2023-12-16 17:32:33,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:33,013 INFO L495 AbstractCegarLoop]: Abstraction has 5967 states and 10374 transitions. [2023-12-16 17:32:33,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:32:33,014 INFO L276 IsEmpty]: Start isEmpty. Operand 5967 states and 10374 transitions. [2023-12-16 17:32:33,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 17:32:33,052 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:33,052 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:33,084 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 [2023-12-16 17:32:33,260 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 [2023-12-16 17:32:33,260 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:33,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:33,261 INFO L85 PathProgramCache]: Analyzing trace with hash -59760024, now seen corresponding path program 1 times [2023-12-16 17:32:33,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:33,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2145357771] [2023-12-16 17:32:33,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:33,262 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 [2023-12-16 17:32:33,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:33,263 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) [2023-12-16 17:32:33,315 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 [2023-12-16 17:32:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:33,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:33,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:33,602 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:32:33,603 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:33,603 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:33,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2145357771] [2023-12-16 17:32:33,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2145357771] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:33,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:33,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:33,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855881119] [2023-12-16 17:32:33,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:33,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:33,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:33,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:33,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:33,607 INFO L87 Difference]: Start difference. First operand 5967 states and 10374 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:32:33,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:33,959 INFO L93 Difference]: Finished difference Result 14257 states and 25017 transitions. [2023-12-16 17:32:33,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:33,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 155 [2023-12-16 17:32:33,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:34,027 INFO L225 Difference]: With dead ends: 14257 [2023-12-16 17:32:34,027 INFO L226 Difference]: Without dead ends: 9191 [2023-12-16 17:32:34,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:34,050 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 124 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:34,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1294 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:34,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9191 states. [2023-12-16 17:32:34,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9191 to 9181. [2023-12-16 17:32:34,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9181 states, 7559 states have (on average 1.6666225691228997) internal successors, (12598), 7573 states have internal predecessors, (12598), 1552 states have call successors, (1552), 62 states have call predecessors, (1552), 69 states have return successors, (1910), 1549 states have call predecessors, (1910), 1548 states have call successors, (1910) [2023-12-16 17:32:34,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9181 states to 9181 states and 16060 transitions. [2023-12-16 17:32:34,601 INFO L78 Accepts]: Start accepts. Automaton has 9181 states and 16060 transitions. Word has length 155 [2023-12-16 17:32:34,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:34,601 INFO L495 AbstractCegarLoop]: Abstraction has 9181 states and 16060 transitions. [2023-12-16 17:32:34,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:32:34,601 INFO L276 IsEmpty]: Start isEmpty. Operand 9181 states and 16060 transitions. [2023-12-16 17:32:34,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-16 17:32:34,642 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:34,643 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:34,650 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 [2023-12-16 17:32:34,850 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 [2023-12-16 17:32:34,851 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:34,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:34,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1580353884, now seen corresponding path program 1 times [2023-12-16 17:32:34,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:34,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620184356] [2023-12-16 17:32:34,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:34,852 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 [2023-12-16 17:32:34,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:34,853 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) [2023-12-16 17:32:34,859 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 [2023-12-16 17:32:35,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:35,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:35,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:35,199 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-16 17:32:35,199 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:35,200 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:35,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620184356] [2023-12-16 17:32:35,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [620184356] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:35,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:35,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:35,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052169232] [2023-12-16 17:32:35,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:35,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:35,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:35,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:35,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:35,203 INFO L87 Difference]: Start difference. First operand 9181 states and 16060 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 17:32:35,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:35,801 INFO L93 Difference]: Finished difference Result 22349 states and 39381 transitions. [2023-12-16 17:32:35,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:35,802 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 174 [2023-12-16 17:32:35,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:35,899 INFO L225 Difference]: With dead ends: 22349 [2023-12-16 17:32:35,899 INFO L226 Difference]: Without dead ends: 14667 [2023-12-16 17:32:35,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:35,928 INFO L413 NwaCegarLoop]: 660 mSDtfsCounter, 122 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:35,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1303 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:35,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14667 states. [2023-12-16 17:32:36,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14667 to 14657. [2023-12-16 17:32:36,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14657 states, 12049 states have (on average 1.6613826873599469) internal successors, (20018), 12063 states have internal predecessors, (20018), 2538 states have call successors, (2538), 62 states have call predecessors, (2538), 69 states have return successors, (3140), 2535 states have call predecessors, (3140), 2534 states have call successors, (3140) [2023-12-16 17:32:36,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14657 states to 14657 states and 25696 transitions. [2023-12-16 17:32:36,657 INFO L78 Accepts]: Start accepts. Automaton has 14657 states and 25696 transitions. Word has length 174 [2023-12-16 17:32:36,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:36,658 INFO L495 AbstractCegarLoop]: Abstraction has 14657 states and 25696 transitions. [2023-12-16 17:32:36,658 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 17:32:36,658 INFO L276 IsEmpty]: Start isEmpty. Operand 14657 states and 25696 transitions. [2023-12-16 17:32:36,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-12-16 17:32:36,708 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:36,709 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:36,716 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 [2023-12-16 17:32:36,915 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 [2023-12-16 17:32:36,917 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:36,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:36,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1970630446, now seen corresponding path program 1 times [2023-12-16 17:32:36,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:36,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977006879] [2023-12-16 17:32:36,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:36,918 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 [2023-12-16 17:32:36,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:36,919 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) [2023-12-16 17:32:36,955 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 [2023-12-16 17:32:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:37,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:37,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:37,247 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-16 17:32:37,247 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:37,247 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:37,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977006879] [2023-12-16 17:32:37,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977006879] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:37,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:37,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:37,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401081490] [2023-12-16 17:32:37,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:37,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:37,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:37,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:37,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:37,251 INFO L87 Difference]: Start difference. First operand 14657 states and 25696 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 17:32:38,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:38,258 INFO L93 Difference]: Finished difference Result 36955 states and 65119 transitions. [2023-12-16 17:32:38,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:38,259 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 175 [2023-12-16 17:32:38,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:38,443 INFO L225 Difference]: With dead ends: 36955 [2023-12-16 17:32:38,443 INFO L226 Difference]: Without dead ends: 24559 [2023-12-16 17:32:38,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:38,468 INFO L413 NwaCegarLoop]: 653 mSDtfsCounter, 120 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:38,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1299 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:32:38,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24559 states. [2023-12-16 17:32:39,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24559 to 24549. [2023-12-16 17:32:39,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24549 states, 20297 states have (on average 1.6619204808592403) internal successors, (33732), 20311 states have internal predecessors, (33732), 4182 states have call successors, (4182), 62 states have call predecessors, (4182), 69 states have return successors, (5084), 4179 states have call predecessors, (5084), 4178 states have call successors, (5084) [2023-12-16 17:32:39,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24549 states to 24549 states and 42998 transitions. [2023-12-16 17:32:39,684 INFO L78 Accepts]: Start accepts. Automaton has 24549 states and 42998 transitions. Word has length 175 [2023-12-16 17:32:39,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:39,684 INFO L495 AbstractCegarLoop]: Abstraction has 24549 states and 42998 transitions. [2023-12-16 17:32:39,684 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 17:32:39,684 INFO L276 IsEmpty]: Start isEmpty. Operand 24549 states and 42998 transitions. [2023-12-16 17:32:39,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-16 17:32:39,770 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:39,770 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:39,777 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 [2023-12-16 17:32:39,977 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 [2023-12-16 17:32:39,978 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:39,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:39,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1657397704, now seen corresponding path program 1 times [2023-12-16 17:32:39,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:39,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426426833] [2023-12-16 17:32:39,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:39,979 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 [2023-12-16 17:32:39,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:39,992 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) [2023-12-16 17:32:39,995 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 [2023-12-16 17:32:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:40,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:40,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:40,299 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:32:40,299 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:40,299 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:40,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426426833] [2023-12-16 17:32:40,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [426426833] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:40,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:40,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:40,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435657749] [2023-12-16 17:32:40,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:40,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:40,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:40,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:40,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:40,303 INFO L87 Difference]: Start difference. First operand 24549 states and 42998 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, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:32:41,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:41,806 INFO L93 Difference]: Finished difference Result 58677 states and 102855 transitions. [2023-12-16 17:32:41,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:41,807 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, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 158 [2023-12-16 17:32:41,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:41,924 INFO L225 Difference]: With dead ends: 58677 [2023-12-16 17:32:41,924 INFO L226 Difference]: Without dead ends: 38335 [2023-12-16 17:32:41,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:41,964 INFO L413 NwaCegarLoop]: 655 mSDtfsCounter, 118 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:41,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 1273 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:41,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38335 states. [2023-12-16 17:32:44,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38335 to 38325. [2023-12-16 17:32:44,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38325 states, 31667 states have (on average 1.6384880159156219) internal successors, (51886), 31681 states have internal predecessors, (51886), 6588 states have call successors, (6588), 62 states have call predecessors, (6588), 69 states have return successors, (8196), 6585 states have call predecessors, (8196), 6584 states have call successors, (8196) [2023-12-16 17:32:44,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38325 states to 38325 states and 66670 transitions. [2023-12-16 17:32:44,527 INFO L78 Accepts]: Start accepts. Automaton has 38325 states and 66670 transitions. Word has length 158 [2023-12-16 17:32:44,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:44,528 INFO L495 AbstractCegarLoop]: Abstraction has 38325 states and 66670 transitions. [2023-12-16 17:32:44,528 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, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:32:44,528 INFO L276 IsEmpty]: Start isEmpty. Operand 38325 states and 66670 transitions. [2023-12-16 17:32:44,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-12-16 17:32:44,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:44,621 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:44,629 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 [2023-12-16 17:32:44,827 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 [2023-12-16 17:32:44,827 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:44,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:44,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1241864815, now seen corresponding path program 1 times [2023-12-16 17:32:44,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:44,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1711594910] [2023-12-16 17:32:44,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:44,828 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 [2023-12-16 17:32:44,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:44,829 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) [2023-12-16 17:32:44,865 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 [2023-12-16 17:32:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:45,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:45,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:45,108 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-16 17:32:45,108 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:45,108 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:45,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1711594910] [2023-12-16 17:32:45,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1711594910] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:45,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:45,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:45,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063497426] [2023-12-16 17:32:45,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:45,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:45,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:45,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:45,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:45,110 INFO L87 Difference]: Start difference. First operand 38325 states and 66670 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 17:32:47,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:47,947 INFO L93 Difference]: Finished difference Result 101155 states and 176839 transitions. [2023-12-16 17:32:47,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:47,948 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 177 [2023-12-16 17:32:47,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:48,289 INFO L225 Difference]: With dead ends: 101155 [2023-12-16 17:32:48,289 INFO L226 Difference]: Without dead ends: 68319 [2023-12-16 17:32:48,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:48,359 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 116 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:32:48,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1297 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:48,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68319 states. [2023-12-16 17:32:51,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68319 to 68309. [2023-12-16 17:32:51,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68309 states, 56751 states have (on average 1.6358125848002678) internal successors, (92834), 56765 states have internal predecessors, (92834), 11488 states have call successors, (11488), 62 states have call predecessors, (11488), 69 states have return successors, (14450), 11485 states have call predecessors, (14450), 11484 states have call successors, (14450) [2023-12-16 17:32:51,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68309 states to 68309 states and 118772 transitions. [2023-12-16 17:32:51,809 INFO L78 Accepts]: Start accepts. Automaton has 68309 states and 118772 transitions. Word has length 177 [2023-12-16 17:32:51,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:32:51,809 INFO L495 AbstractCegarLoop]: Abstraction has 68309 states and 118772 transitions. [2023-12-16 17:32:51,810 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 17:32:51,810 INFO L276 IsEmpty]: Start isEmpty. Operand 68309 states and 118772 transitions. [2023-12-16 17:32:51,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-12-16 17:32:51,956 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:32:51,956 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:32:51,963 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2023-12-16 17:32:52,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:32:52,162 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:32:52,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:32:52,162 INFO L85 PathProgramCache]: Analyzing trace with hash -961228708, now seen corresponding path program 1 times [2023-12-16 17:32:52,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:32:52,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394441835] [2023-12-16 17:32:52,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:32:52,163 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 [2023-12-16 17:32:52,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:32:52,165 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:32:52,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-16 17:32:52,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:32:52,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:32:52,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:32:52,511 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-16 17:32:52,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:32:52,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:32:52,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1394441835] [2023-12-16 17:32:52,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1394441835] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:32:52,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:32:52,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:32:52,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044545394] [2023-12-16 17:32:52,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:32:52,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:32:52,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:32:52,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:32:52,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:52,513 INFO L87 Difference]: Start difference. First operand 68309 states and 118772 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 17:32:57,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:32:57,060 INFO L93 Difference]: Finished difference Result 186129 states and 323823 transitions. [2023-12-16 17:32:57,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:32:57,061 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 178 [2023-12-16 17:32:57,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:32:57,745 INFO L225 Difference]: With dead ends: 186129 [2023-12-16 17:32:57,745 INFO L226 Difference]: Without dead ends: 125139 [2023-12-16 17:32:57,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:32:57,872 INFO L413 NwaCegarLoop]: 653 mSDtfsCounter, 114 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1300 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 [2023-12-16 17:32:57,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 1300 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:32:57,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125139 states. [2023-12-16 17:33:03,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125139 to 125129. [2023-12-16 17:33:03,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125129 states, 104545 states have (on average 1.632043617580946) internal successors, (170622), 104559 states have internal predecessors, (170622), 20514 states have call successors, (20514), 62 states have call predecessors, (20514), 69 states have return successors, (25072), 20511 states have call predecessors, (25072), 20510 states have call successors, (25072) [2023-12-16 17:33:03,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125129 states to 125129 states and 216208 transitions. [2023-12-16 17:33:03,744 INFO L78 Accepts]: Start accepts. Automaton has 125129 states and 216208 transitions. Word has length 178 [2023-12-16 17:33:03,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:33:03,744 INFO L495 AbstractCegarLoop]: Abstraction has 125129 states and 216208 transitions. [2023-12-16 17:33:03,745 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 17:33:03,745 INFO L276 IsEmpty]: Start isEmpty. Operand 125129 states and 216208 transitions. [2023-12-16 17:33:03,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-16 17:33:03,964 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:33:03,964 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:33:03,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-16 17:33:04,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:33:04,171 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:33:04,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:33:04,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1233773713, now seen corresponding path program 1 times [2023-12-16 17:33:04,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:33:04,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174817398] [2023-12-16 17:33:04,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:33:04,172 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 [2023-12-16 17:33:04,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:33:04,173 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:33:04,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-16 17:33:04,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:33:04,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:33:04,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:33:04,460 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-16 17:33:04,460 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:33:04,461 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:33:04,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174817398] [2023-12-16 17:33:04,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [174817398] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:33:04,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:33:04,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:33:04,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952351547] [2023-12-16 17:33:04,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:33:04,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:33:04,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:33:04,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:33:04,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:33:04,462 INFO L87 Difference]: Start difference. First operand 125129 states and 216208 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Received shutdown request... [2023-12-16 17:33:11,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:33:11,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:33:11,775 INFO L413 NwaCegarLoop]: 642 mSDtfsCounter, 112 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:33:11,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 1279 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:33:11,782 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:33:12,028 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:33:12,028 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:33:12,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-16 17:33:12,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:33:12,229 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (125129states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (211425 states constructed, input type IntersectNwa). [2023-12-16 17:33:12,232 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:33:12,235 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:33:12,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:33:12 BoogieIcfgContainer [2023-12-16 17:33:12,236 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:33:12,236 INFO L158 Benchmark]: Toolchain (without parser) took 60741.10ms. Allocated memory was 379.6MB in the beginning and 7.6GB in the end (delta: 7.2GB). Free memory was 324.4MB in the beginning and 6.1GB in the end (delta: -5.8GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2023-12-16 17:33:12,237 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 199.2MB. Free memory is still 146.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:33:12,237 INFO L158 Benchmark]: CACSL2BoogieTranslator took 944.53ms. Allocated memory is still 379.6MB. Free memory was 323.9MB in the beginning and 260.4MB in the end (delta: 63.4MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. [2023-12-16 17:33:12,237 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.63ms. Allocated memory is still 379.6MB. Free memory was 260.4MB in the beginning and 253.6MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 17:33:12,237 INFO L158 Benchmark]: Boogie Preprocessor took 126.00ms. Allocated memory is still 379.6MB. Free memory was 253.6MB in the beginning and 245.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-16 17:33:12,237 INFO L158 Benchmark]: RCFGBuilder took 1531.71ms. Allocated memory is still 379.6MB. Free memory was 245.2MB in the beginning and 253.9MB in the end (delta: -8.7MB). Peak memory consumption was 34.3MB. Max. memory is 8.0GB. [2023-12-16 17:33:12,237 INFO L158 Benchmark]: TraceAbstraction took 58048.99ms. Allocated memory was 379.6MB in the beginning and 7.6GB in the end (delta: 7.2GB). Free memory was 253.4MB in the beginning and 6.1GB in the end (delta: -5.9GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2023-12-16 17:33:12,238 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 199.2MB. Free memory is still 146.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 944.53ms. Allocated memory is still 379.6MB. Free memory was 323.9MB in the beginning and 260.4MB in the end (delta: 63.4MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 83.63ms. Allocated memory is still 379.6MB. Free memory was 260.4MB in the beginning and 253.6MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 126.00ms. Allocated memory is still 379.6MB. Free memory was 253.6MB in the beginning and 245.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1531.71ms. Allocated memory is still 379.6MB. Free memory was 245.2MB in the beginning and 253.9MB in the end (delta: -8.7MB). Peak memory consumption was 34.3MB. Max. memory is 8.0GB. * TraceAbstraction took 58048.99ms. Allocated memory was 379.6MB in the beginning and 7.6GB in the end (delta: 7.2GB). Free memory was 253.4MB in the beginning and 6.1GB in the end (delta: -5.9GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] - GenericResultAtLocation [Line: 392]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [392] - GenericResultAtLocation [Line: 854]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [854] - GenericResultAtLocation [Line: 913]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [913] - GenericResultAtLocation [Line: 1973]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1973] - GenericResultAtLocation [Line: 2372]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2372] - GenericResultAtLocation [Line: 2507]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2507] - GenericResultAtLocation [Line: 2873]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2873] - GenericResultAtLocation [Line: 2908]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2908] - GenericResultAtLocation [Line: 2925]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2925] - GenericResultAtLocation [Line: 2934]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2934] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 2930]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2930). Cancelled while NwaCegarLoop was constructing difference of abstraction (125129states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (211425 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 444 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 58.0s, OverallIterations: 22, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.8s, AutomataDifference: 28.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5539 SdHoareTripleChecker+Valid, 6.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5217 mSDsluCounter, 38379 SdHoareTripleChecker+Invalid, 5.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24298 mSDsCounter, 823 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7103 IncrementalHoareTripleChecker+Invalid, 7926 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 823 mSolverCounterUnsat, 14081 mSDtfsCounter, 7103 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3765 GetRequests, 3694 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125129occurred in iteration=21, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 15.5s AutomataMinimizationTime, 21 MinimizatonAttempts, 481 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.3s SsaConstructionTime, 3.0s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 3455 NumberOfCodeBlocks, 3382 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 3743 ConstructedInterpolants, 0 QuantifiedInterpolants, 4776 SizeOfPredicates, 30 NumberOfNonLiveVariables, 14453 ConjunctsInSsa, 87 ConjunctsInUnsatCore, 24 InterpolantComputations, 20 PerfectInterpolantSequences, 1167/1183 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown